/* 
 * 尧图手机网站定制 - 全局样式
 * 浪漫婚礼风：浅粉 + 纯白 + 香槟金
 * 左右图文对撞错位布局，波浪线分割
 */

:root {
    --color-pink-light: #FFE6EB;
    --color-pink-soft: #FFB6C1;
    --color-pink-deep: #FF69B4;
    --color-white: #FFFFFF;
    --color-champagne: #F7E7CE;
    --color-champagne-gold: #D4AF37;
    --color-text-dark: #4A4A4A;
    --color-text-light: #888888;
    --color-bg-soft: #FFF5F7;
    --shadow-soft: 0 4px 20px rgba(255, 182, 193, 0.3);
    --shadow-hover: 0 8px 30px rgba(255, 105, 180, 0.4);
    --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --border-radius-lg: 20px;
    --border-radius-md: 12px;
    --border-radius-sm: 8px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    background: linear-gradient(135deg, var(--color-bg-soft) 0%, var(--color-white) 50%, var(--color-pink-light) 100%);
    color: var(--color-text-dark);
    line-height: 1.8;
    overflow-x: hidden;
    min-height: 100vh;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-smooth);
}

ul, ol {
    list-style: none;
}

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

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ========== 顶部导航栏 ========== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(15px);
    box-shadow: 0 2px 20px rgba(255, 182, 193, 0.15);
    transition: var(--transition-smooth);
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.99);
    box-shadow: 0 4px 30px rgba(255, 105, 180, 0.25);
    padding: 0;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 30px;
    max-width: 1600px;
    margin: 0 auto;
    position: relative;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
    z-index: 1001;
}

.logo img {
    height: 45px;
    width: auto;
    border-radius: var(--border-radius-sm);
}

.logo-text {
    font-size: 22px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--color-pink-deep), var(--color-champagne-gold));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

/* 导航菜单容器 - 支持横向滚动 */
.nav-wrapper {
    flex: 1;
    display: flex;
    justify-content: flex-end;
    align-items: center;
    overflow-x: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.nav-wrapper::-webkit-scrollbar {
    display: none;
}

.nav-menu {
    display: flex;
    gap: 8px;
    padding: 8px 0;
    flex-shrink: 0;
}

.nav-menu li {
    position: relative;
}

.nav-menu li a {
    display: inline-block;
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text-dark);
    padding: 10px 16px;
    border-radius: 25px;
    position: relative;
    overflow: hidden;
    white-space: nowrap;
    transition: var(--transition-smooth);
    background: transparent;
}

.nav-menu li a::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(255, 105, 180, 0.1), rgba(212, 175, 55, 0.1));
    transform: scaleX(0);
    transform-origin: right;
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border-radius: 25px;
    z-index: -1;
}

.nav-menu li a:hover::before,
.nav-menu li a.active::before {
    transform: scaleX(1);
    transform-origin: left;
}

.nav-menu li a:hover,
.nav-menu li a.active {
    color: var(--color-pink-deep);
    background: linear-gradient(135deg, rgba(255, 230, 235, 0.5), rgba(247, 231, 206, 0.3));
}

/* 汉堡菜单按钮 */
.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    cursor: pointer;
    gap: 6px;
    background: linear-gradient(135deg, var(--color-pink-light), var(--color-champagne));
    border-radius: 50%;
    padding: 0;
    border: none;
    transition: var(--transition-smooth);
    flex-shrink: 0;
    margin-left: 15px;
    z-index: 1001;
}

.hamburger:hover {
    background: linear-gradient(135deg, var(--color-pink-deep), var(--color-champagne-gold));
    transform: scale(1.1);
}

.hamburger span {
    width: 20px;
    height: 2.5px;
    background: var(--color-white);
    border-radius: 3px;
    transition: var(--transition-smooth);
}

.hamburger.active {
    background: linear-gradient(135deg, var(--color-pink-deep), var(--color-champagne-gold));
}

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

.hamburger.active span:nth-child(2) {
    opacity: 0;
    transform: translateX(-10px);
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* 移动端全屏菜单 */
@media (max-width: 1200px) {
    .nav-container {
        padding: 10px 20px;
    }
    
    .logo-text {
        font-size: 20px;
    }
    
    .nav-menu {
        gap: 4px;
    }
    
    .nav-menu li a {
        font-size: 13px;
        padding: 8px 12px;
    }
}

/* ========== 页脚 ========== */
.footer {
    background: linear-gradient(135deg, var(--color-pink-light), var(--color-champagne));
    padding: 60px 0 30px;
    margin-top: 80px;
    position: relative;
}

.footer::before {
    content: '';
    position: absolute;
    top: -50px;
    left: 0;
    width: 100%;
    height: 50px;
    background: url('../images/wave-footer.svg') repeat-x;
    background-size: contain;
    opacity: 0.5;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-section h3 {
    font-size: 20px;
    color: var(--color-pink-deep);
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-section h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-pink-deep), var(--color-champagne-gold));
    border-radius: 3px;
}

.footer-section p,
.footer-section li {
    color: var(--color-text-dark);
    margin-bottom: 12px;
    font-size: 15px;
}

.footer-section li a:hover {
    color: var(--color-pink-deep);
    padding-left: 8px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 182, 193, 0.3);
    color: var(--color-text-light);
    font-size: 14px;
}

/* ========== 波浪线分割 ========== */
.wave-divider {
    position: relative;
    height: 80px;
    margin: 60px 0;
    overflow: hidden;
}

.wave-divider::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../images/wave-divider.svg') repeat-x;
    background-size: contain;
    animation: wave-flow 15s ease-in-out infinite;
}

@keyframes wave-flow {
    0%, 100% {
        transform: translateX(0);
    }
    50% {
        transform: translateX(-20px);
    }
}

/* ========== 通用板块样式 ========== */
.section {
    padding: 80px 0;
    position: relative;
}

.section-title {
    text-align: center;
    margin-bottom: 60px;
}

.section-title h2 {
    font-size: 42px;
    background: linear-gradient(135deg, var(--color-pink-deep), var(--color-champagne-gold));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-title h2::after {
    content: '💕';
    position: absolute;
    bottom: -25px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 20px;
}

.section-title p {
    color: var(--color-text-light);
    font-size: 18px;
    max-width: 600px;
    margin: 30px auto 0;
}

/* ========== 左右图文对撞错位布局 ========== */
.offset-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    margin-bottom: 80px;
}

.offset-layout.reverse {
    direction: rtl;
}

.offset-layout.reverse > * {
    direction: ltr;
}

.offset-image {
    position: relative;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    transform: perspective(1000px) rotateY(-5deg);
    transition: var(--transition-smooth);
}

.offset-layout.reverse .offset-image {
    transform: perspective(1000px) rotateY(5deg);
}

.offset-image:hover {
    transform: perspective(1000px) rotateY(0) scale(1.02);
    box-shadow: var(--shadow-hover);
}

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

.offset-content {
    padding: 40px;
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-soft);
    position: relative;
}

.offset-content::before {
    content: '';
    position: absolute;
    top: -10px;
    left: -10px;
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, var(--color-pink-light), transparent);
    border-radius: 50%;
    opacity: 0.5;
}

.offset-content h3 {
    font-size: 28px;
    color: var(--color-pink-deep);
    margin-bottom: 20px;
}

.offset-content p {
    color: var(--color-text-light);
    line-height: 2;
    margin-bottom: 20px;
}

.btn {
    display: inline-block;
    padding: 15px 35px;
    background: linear-gradient(135deg, var(--color-pink-deep), var(--color-champagne-gold));
    color: var(--color-white);
    border-radius: 50px;
    font-weight: 600;
    font-size: 16px;
    box-shadow: 0 5px 20px rgba(255, 105, 180, 0.4);
    transition: var(--transition-smooth);
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(255, 105, 180, 0.6);
}

/* ========== 卡片式布局 ========== */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.card {
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    transition: var(--transition-smooth);
    position: relative;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 5px;
    background: linear-gradient(90deg, var(--color-pink-deep), var(--color-champagne-gold));
    transform: scaleX(0);
    transition: var(--transition-smooth);
}

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

.card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-hover);
}

.card-image {
    height: 220px;
    overflow: hidden;
}

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

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

.card-content {
    padding: 25px;
}

.card-content h3 {
    font-size: 20px;
    color: var(--color-pink-deep);
    margin-bottom: 12px;
}

.card-content p {
    color: var(--color-text-light);
    font-size: 15px;
    line-height: 1.8;
    margin-bottom: 15px;
}

.card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 14px;
    color: var(--color-text-light);
}

/* ========== 滚动渐入动画 ========== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

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

/* ========== 响应式设计 ========== */
@media (max-width: 992px) {
    .offset-layout {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .offset-layout.reverse {
        direction: ltr;
    }
    
    .offset-image {
        transform: none !important;
    }
    
    .section-title h2 {
        font-size: 36px;
    }
}

@media (max-width: 768px) {
    .nav-wrapper {
        display: none;
    }
    
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: linear-gradient(180deg, var(--color-bg-soft) 0%, var(--color-white) 100%);
        flex-direction: column;
        padding: 30px 20px;
        gap: 15px;
        transition: var(--transition-smooth);
        overflow-y: auto;
        align-items: center;
        justify-content: flex-start;
    }
    
    .nav-menu li a {
        width: 100%;
        max-width: 300px;
        text-align: center;
        font-size: 16px;
        padding: 14px 20px;
        background: var(--color-white);
        box-shadow: 0 2px 10px rgba(255, 182, 193, 0.2);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    .section {
        padding: 50px 0;
    }
    
    .section-title h2 {
        font-size: 28px;
    }
    
    .offset-content {
        padding: 25px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .logo-text {
        font-size: 20px;
    }
    
    .btn {
        padding: 12px 25px;
        font-size: 14px;
    }
    
    .card-grid {
        grid-template-columns: 1fr;
    }
}