/* ========================================
   Capital Peak - 高端品牌官网定制
   奢华珠宝风：铂金 + 暖金 + 纯白
   ======================================== */

:root {
    --platinum: #E5E4E2;
    --platinum-dark: #C0C0C0;
    --warm-gold: #D4AF37;
    --warm-gold-light: #F4D03F;
    --warm-gold-dark: #B8941F;
    --pure-white: #FFFFFF;
    --off-white: #F9F9F9;
    --text-dark: #2C2C2C;
    --text-gray: #666666;
    --bg-gradient: linear-gradient(135deg, #F9F9F9 0%, #FFFFFF 50%, #F5F5F5 100%);
    --gold-gradient: linear-gradient(135deg, #D4AF37 0%, #F4D03F 50%, #B8941F 100%);
    --shadow-soft: 0 10px 40px rgba(212, 175, 55, 0.15);
    --shadow-medium: 0 20px 60px rgba(212, 175, 55, 0.2);
    --shadow-strong: 0 30px 80px rgba(212, 175, 55, 0.25);
    --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: all 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    background: var(--bg-gradient);
    color: var(--text-dark);
    line-height: 1.8;
    overflow-x: hidden;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 80%, rgba(212, 175, 55, 0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(212, 175, 55, 0.03) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

/* ========================================
   顶部导航栏
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    transition: var(--transition-smooth);
    background: transparent;
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 5px 30px rgba(212, 175, 55, 0.1);
    backdrop-filter: blur(10px);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 1.5rem 3rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    text-decoration: none;
}

.logo-img {
    width: 60px;
    height: 60px;
    object-fit: contain;
}

.logo-text {
    font-size: 1.8rem;
    font-weight: 700;
    background: var(--gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 2px;
}

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

.nav-link {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    font-size: 1rem;
    letter-spacing: 1px;
    position: relative;
    padding: 0.5rem 0;
    transition: var(--transition-smooth);
}

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

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link:hover,
.nav-link.active {
    color: var(--warm-gold);
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 30px;
    height: 3px;
    background: var(--warm-gold);
    transition: var(--transition-smooth);
}

.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);
}

/* ========================================
   瀑布流卡片磁吸悬浮布局
   ======================================== */
.waterfall-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
    perspective: 1000px;
}

.card {
    background: var(--pure-white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    transition: var(--transition-bounce);
    position: relative;
    cursor: pointer;
    transform-style: preserve-3d;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.05) 0%, transparent 50%);
    pointer-events: none;
    opacity: 0;
    transition: var(--transition-smooth);
}

.card:hover {
    transform: translateY(-15px) scale(1.02);
    box-shadow: var(--shadow-strong);
}

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

.card-image-wrapper {
    position: relative;
    overflow: hidden;
    height: 250px;
}

.card-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-smooth);
}

.card:hover .card-image {
    transform: scale(1.1);
}

.card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, transparent 0%, rgba(0, 0, 0, 0.7) 100%);
    opacity: 0;
    transition: var(--transition-smooth);
}

.card:hover .card-overlay {
    opacity: 1;
}

.card-content {
    padding: 2rem;
}

.card-category {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--gold-gradient);
    color: var(--pure-white);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1rem;
    letter-spacing: 1px;
}

.card-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
    line-height: 1.4;
}

.card-excerpt {
    color: var(--text-gray);
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 1.5rem;
    border-top: 1px solid rgba(212, 175, 55, 0.2);
}

.card-date {
    color: var(--warm-gold);
    font-size: 0.9rem;
    font-weight: 500;
}

.card-link {
    color: var(--warm-gold);
    text-decoration: none;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition-smooth);
}

.card-link:hover {
    gap: 1rem;
}

/* ========================================
   Hero Banner
   ======================================== */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: 8rem 2rem 4rem;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -2;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(255, 255, 255, 0.7) 100%);
    z-index: -1;
}

.hero-content {
    text-align: center;
    max-width: 900px;
}

.hero-badge {
    display: inline-block;
    padding: 1rem 2.5rem;
    background: var(--gold-gradient);
    color: var(--pure-white);
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: 3px;
    margin-bottom: 2rem;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.hero-title {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    background: var(--gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-gray);
    margin-bottom: 3rem;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    padding: 1.2rem 3rem;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition-smooth);
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gold-gradient);
    color: var(--pure-white);
    box-shadow: 0 10px 30px rgba(212, 175, 55, 0.3);
}

.btn-primary:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(212, 175, 55, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--warm-gold);
    border: 2px solid var(--warm-gold);
}

.btn-secondary:hover {
    background: var(--warm-gold);
    color: var(--pure-white);
}

/* ========================================
   Section Styles
   ======================================== */
.section {
    padding: 6rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

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

.section-badge {
    display: inline-block;
    padding: 0.8rem 2rem;
    background: rgba(212, 175, 55, 0.1);
    color: var(--warm-gold);
    border-radius: 30px;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 2px;
    margin-bottom: 1.5rem;
}

.section-title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    background: var(--gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.2rem;
    color: var(--text-gray);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.8;
}

/* ========================================
   Features Grid
   ======================================== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--pure-white);
    padding: 3rem 2rem;
    border-radius: 20px;
    text-align: center;
    box-shadow: var(--shadow-soft);
    transition: var(--transition-bounce);
    border: 2px solid transparent;
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: var(--warm-gold);
    box-shadow: var(--shadow-medium);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 2rem;
    object-fit: contain;
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
}

.feature-desc {
    color: var(--text-gray);
    line-height: 1.8;
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: linear-gradient(135deg, #1a1a1a 0%, #2c2c2c 100%);
    color: var(--pure-white);
    padding: 5rem 2rem 2rem;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.footer-logo-img {
    width: 50px;
    height: 50px;
    object-fit: contain;
}

.footer-logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-desc {
    color: rgba(255, 255, 255, 0.7);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

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

.social-link {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: rgba(212, 175, 55, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-smooth);
}

.social-link:hover {
    background: var(--warm-gold);
    transform: translateY(-5px);
}

.social-icon {
    width: 20px;
    height: 20px;
    fill: var(--pure-white);
}

.footer-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--warm-gold);
}

.footer-links {
    list-style: none;
}

.footer-link {
    margin-bottom: 1rem;
}

.footer-link a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition-smooth);
}

.footer-link a:hover {
    color: var(--warm-gold);
    padding-left: 10px;
}

.footer-contact {
    color: rgba(255, 255, 255, 0.7);
    line-height: 2;
}

.footer-bottom {
    max-width: 1400px;
    margin: 0 auto;
    padding-top: 2rem;
    border-top: 1px solid rgba(212, 175, 55, 0.3);
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
}

/* ========================================
   Page Header
   ======================================== */
.page-header {
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.1) 0%, rgba(255, 255, 255, 0.9) 100%);
    padding: 10rem 2rem 5rem;
    text-align: center;
}

.page-title {
    font-size: 3.5rem;
    font-weight: 800;
    background: var(--gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1.5rem;
}

.page-subtitle {
    font-size: 1.3rem;
    color: var(--text-gray);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.8;
}

/* ========================================
   News List
   ======================================== */
.news-list {
    display: grid;
    gap: 2rem;
}

.news-item {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 2rem;
    background: var(--pure-white);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    transition: var(--transition-smooth);
}

.news-item:hover {
    transform: translateX(10px);
    box-shadow: var(--shadow-medium);
}

.news-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
}

.news-content {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.news-category {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: rgba(212, 175, 55, 0.1);
    color: var(--warm-gold);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1rem;
    align-self: flex-start;
}

.news-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-dark);
    line-height: 1.4;
}

.news-excerpt {
    color: var(--text-gray);
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.news-meta {
    display: flex;
    gap: 2rem;
    color: var(--warm-gold);
    font-size: 0.9rem;
}

/* ========================================
   News Detail
   ======================================== */
.news-detail {
    max-width: 900px;
    margin: 0 auto;
    padding: 4rem 2rem;
}

.news-detail-header {
    text-align: center;
    margin-bottom: 3rem;
}

.news-detail-title {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    color: var(--text-dark);
    line-height: 1.3;
}

.news-detail-meta {
    display: flex;
    justify-content: center;
    gap: 2rem;
    color: var(--warm-gold);
    font-size: 1rem;
}

.news-detail-image {
    width: 100%;
    height: 400px;
    object-fit: cover;
    border-radius: 20px;
    margin-bottom: 3rem;
}

.news-detail-content {
    font-size: 1.1rem;
    line-height: 2;
    color: var(--text-dark);
}

.news-detail-content p {
    margin-bottom: 1.5rem;
}

.news-detail-content img {
    max-width: 100%;
    border-radius: 10px;
    margin: 2rem 0;
}

/* ========================================
   Related News
   ======================================== */
.related-news {
    margin-top: 4rem;
    padding-top: 3rem;
    border-top: 2px solid rgba(212, 175, 55, 0.2);
}

.related-news-title {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 2rem;
    text-align: center;
    color: var(--text-dark);
}

/* ========================================
   Scroll Animations
   ======================================== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: var(--transition-smooth);
}

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

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 1024px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .section-title {
        font-size: 2.5rem;
    }
    
    .waterfall-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .header-container {
        padding: 1rem 1.5rem;
    }
    
    .nav-menu {
        position: fixed;
        top: 80px;
        left: 0;
        width: 100%;
        background: var(--pure-white);
        flex-direction: column;
        padding: 2rem;
        gap: 1.5rem;
        box-shadow: var(--shadow-medium);
        transform: translateY(-150%);
        opacity: 0;
        transition: var(--transition-smooth);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
    }
    
    .hamburger {
        display: flex;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.2rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
    
    .waterfall-container {
        grid-template-columns: 1fr;
        padding: 1rem;
    }
    
    .news-item {
        grid-template-columns: 1fr;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .page-title {
        font-size: 2rem;
    }
    
    .btn {
        padding: 1rem 2rem;
        font-size: 1rem;
    }
}