/* 
 * 赛达丰建站 - 手工藤艺风格样式表
 * 颜色：浅棕 + 深棕 + 米白
 * 布局：圆形模块悬浮嵌套布局
 */

:root {
    --light-brown: #D4C4B0;
    --deep-brown: #5C4033;
    --cream-white: #F5F0E8;
    --accent-brown: #8B6F47;
    --text-dark: #3E2723;
    --text-light: #6D4C41;
    --shadow-soft: 0 8px 32px rgba(92, 64, 51, 0.15);
    --shadow-hover: 0 12px 48px rgba(92, 64, 51, 0.25);
    --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Georgia', 'Times New Roman', serif;
    background: linear-gradient(135deg, var(--cream-white) 0%, #EFE6DD 100%);
    color: var(--text-dark);
    line-height: 1.8;
    overflow-x: hidden;
    min-height: 100vh;
}

/* ========== 导航栏 ========== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 1rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: transparent;
    transition: var(--transition-smooth);
}

.navbar.scrolled {
    background: rgba(92, 64, 51, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow-soft);
}

.navbar .logo {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--deep-brown);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition-smooth);
}

.navbar.scrolled .logo {
    color: var(--cream-white);
}

.logo-icon {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-brown), var(--deep-brown));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--cream-white);
    font-size: 1.2rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    text-decoration: none;
    color: var(--deep-brown);
    font-size: 1rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    transition: var(--transition-smooth);
    position: relative;
}

.navbar.scrolled .nav-menu a {
    color: var(--cream-white);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--accent-brown);
    transition: var(--transition-smooth);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 80%;
}

.nav-menu a:hover,
.nav-menu a.active {
    background: rgba(139, 111, 71, 0.1);
}

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--deep-brown);
    border-radius: 2px;
    transition: var(--transition-smooth);
}

.navbar.scrolled .hamburger span {
    background: var(--cream-white);
}

/* ========== 主容器 ========== */
.main-container {
    padding-top: 80px;
    min-height: calc(100vh - 200px);
}

/* ========== 圆形卡片布局 ========== */
.circular-section {
    padding: 4rem 5%;
    position: relative;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    color: var(--deep-brown);
    margin-bottom: 3rem;
    position: relative;
    display: inline-block;
    left: 50%;
    transform: translateX(-50%);
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-brown), var(--deep-brown));
    border-radius: 2px;
}

.cards-circular-wrapper {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 2.5rem;
    max-width: 1400px;
    margin: 0 auto;
}

.card-circular {
    width: 320px;
    height: 380px;
    background: var(--cream-white);
    border-radius: 50%;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    box-shadow: var(--shadow-soft);
    transition: var(--transition-smooth);
    position: relative;
    overflow: hidden;
    border: 3px solid transparent;
}

.card-circular::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(139, 111, 71, 0.1) 0%, transparent 70%);
    opacity: 0;
    transition: var(--transition-smooth);
}

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

.card-circular:hover {
    transform: translateY(-15px) scale(1.05);
    box-shadow: var(--shadow-hover);
    border-color: var(--accent-brown);
}

.card-icon {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--light-brown), var(--accent-brown));
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    font-size: 2rem;
    color: var(--cream-white);
    position: relative;
    z-index: 1;
    transition: var(--transition-smooth);
}

.card-circular:hover .card-icon {
    transform: rotate(360deg);
}

.card-title {
    font-size: 1.4rem;
    color: var(--deep-brown);
    margin-bottom: 1rem;
    position: relative;
    z-index: 1;
}

.card-desc {
    font-size: 0.95rem;
    color: var(--text-light);
    line-height: 1.6;
    position: relative;
    z-index: 1;
}

/* ========== Banner ========== */
.hero-banner {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: 0 5%;
}

.banner-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: -1;
}

.banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(92, 64, 51, 0.7) 0%, rgba(139, 111, 71, 0.5) 100%);
    z-index: 0;
}

.banner-content {
    text-align: center;
    color: var(--cream-white);
    z-index: 1;
    max-width: 900px;
}

.banner-title {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 1s ease-out;
}

.banner-subtitle {
    font-size: 1.5rem;
    margin-bottom: 2.5rem;
    opacity: 0.95;
    animation: fadeInUp 1s ease-out 0.3s both;
}

.banner-btn {
    display: inline-block;
    padding: 1rem 3rem;
    background: linear-gradient(135deg, var(--accent-brown), var(--deep-brown));
    color: var(--cream-white);
    text-decoration: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    transition: var(--transition-smooth);
    box-shadow: 0 8px 24px rgba(92, 64, 51, 0.4);
    animation: fadeInUp 1s ease-out 0.6s both;
}

.banner-btn:hover {
    transform: translateY(-5px);
    box-shadow: 0 12px 36px rgba(92, 64, 51, 0.6);
}

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

/* ========== 页脚 ========== */
.footer {
    background: linear-gradient(135deg, var(--deep-brown) 0%, #3E2723 100%);
    color: var(--cream-white);
    padding: 4rem 5% 2rem;
}

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

.footer-section h3 {
    font-size: 1.3rem;
    margin-bottom: 1.5rem;
    position: relative;
    padding-bottom: 0.8rem;
}

.footer-section h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 2px;
    background: var(--accent-brown);
}

.footer-section p,
.footer-section a {
    color: rgba(245, 240, 232, 0.8);
    line-height: 2;
    text-decoration: none;
    transition: var(--transition-smooth);
}

.footer-section a:hover {
    color: var(--accent-brown);
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    margin-top: 3rem;
    border-top: 1px solid rgba(245, 240, 232, 0.2);
    color: rgba(245, 240, 232, 0.6);
}

/* ========== 滚动动画 ========== */
.scroll-reveal {
    opacity: 0;
    transform: translateY(50px);
    transition: all 0.8s ease-out;
}

.scroll-reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* ========== 响应式 ========== */
@media (max-width: 768px) {
    .navbar {
        padding: 1rem;
    }

    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 280px;
        height: calc(100vh - 70px);
        background: rgba(92, 64, 51, 0.98);
        flex-direction: column;
        padding: 2rem;
        transition: var(--transition-smooth);
        gap: 1rem;
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-menu a {
        color: var(--cream-white);
        display: block;
        padding: 1rem;
    }

    .banner-title {
        font-size: 2.2rem;
    }

    .banner-subtitle {
        font-size: 1.1rem;
    }

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

    .card-circular {
        width: 280px;
        height: 340px;
    }

    .cards-circular-wrapper {
        gap: 1.5rem;
    }
}

/* ========== 内页通用样式 ========== */
.page-header {
    min-height: 50vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: linear-gradient(135deg, var(--deep-brown) 0%, var(--accent-brown) 100%);
    margin-bottom: 3rem;
}

.page-header-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url('../images/bg-pattern.png') repeat;
    opacity: 0.1;
}

.page-header-content {
    text-align: center;
    color: var(--cream-white);
    z-index: 1;
    position: relative;
}

.page-header h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.page-header p {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* ========== 新闻列表样式 ========== */
.news-section {
    padding: 4rem 5%;
    background: var(--cream-white);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.news-card {
    background: #fff;
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    transition: var(--transition-smooth);
}

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

.news-image {
    width: 100%;
    height: 220px;
    object-fit: cover;
}

.news-content {
    padding: 1.5rem;
}

.news-title {
    font-size: 1.3rem;
    color: var(--deep-brown);
    margin-bottom: 0.8rem;
    line-height: 1.4;
}

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

.news-title a:hover {
    color: var(--accent-brown);
}

.news-excerpt {
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 1rem;
}

.news-meta {
    display: flex;
    justify-content: space-between;
    color: var(--text-light);
    font-size: 0.85rem;
}

/* ========== 新闻详情样式 ========== */
.article-detail {
    max-width: 900px;
    margin: 0 auto;
    padding: 3rem 5%;
}

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

.article-title {
    font-size: 2.5rem;
    color: var(--deep-brown);
    margin-bottom: 1rem;
    line-height: 1.3;
}

.article-meta {
    color: var(--text-light);
    font-size: 1rem;
}

.article-image {
    width: 100%;
    max-height: 500px;
    object-fit: cover;
    border-radius: 15px;
    margin-bottom: 2rem;
}

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

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

.article-content img {
    max-width: 100%;
    border-radius: 10px;
    margin: 1.5rem 0;
}

/* ========== 相关内容区域 ========== */
.related-articles {
    padding: 4rem 5%;
    background: var(--cream-white);
}

.related-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    max-width: 1400px;
    margin: 0 auto;
}

.related-card {
    background: #fff;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    transition: var(--transition-smooth);
}

.related-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.related-image {
    width: 100%;
    height: 160px;
    object-fit: cover;
}

.related-content {
    padding: 1.2rem;
}

.related-title {
    font-size: 1.1rem;
    color: var(--deep-brown);
    margin-bottom: 0.5rem;
}

.related-title a {
    text-decoration: none;
    color: inherit;
}

.related-date {
    color: var(--text-light);
    font-size: 0.85rem;
}

/* ========== 预约表单 ========== */
.booking-section {
    padding: 4rem 5%;
    background: linear-gradient(135deg, var(--light-brown) 0%, var(--cream-white) 100%);
}

.booking-form {
    max-width: 600px;
    margin: 0 auto;
    background: #fff;
    padding: 3rem;
    border-radius: 20px;
    box-shadow: var(--shadow-soft);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--deep-brown);
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    border: 2px solid var(--light-brown);
    border-radius: 10px;
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition-smooth);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-brown);
}

.form-submit {
    width: 100%;
    padding: 1rem;
    background: linear-gradient(135deg, var(--accent-brown), var(--deep-brown));
    color: var(--cream-white);
    border: none;
    border-radius: 10px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.form-submit:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 24px rgba(92, 64, 51, 0.4);
}