/* 
 * 斯特拉玛网络设计有限公司 - 全局样式
 * 民宿复古风 | 原木色 + 浅棕 + 米白
 */

:root {
    --primary-wood: #8B6F47;
    --light-brown: #C4A57B;
    --cream-white: #F5F1E8;
    --dark-brown: #5D4E37;
    --soft-beige: #E8DCC4;
    --text-dark: #3C3C3C;
    --text-light: #6B6B6B;
    --white: #FFFFFF;
    --shadow-soft: 0 4px 20px rgba(93, 78, 55, 0.1);
    --shadow-hover: 0 8px 30px rgba(93, 78, 55, 0.15);
    --transition-smooth: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Georgia', 'Times New Roman', serif;
    background-color: var(--cream-white);
    color: var(--text-dark);
    line-height: 1.8;
    overflow-x: hidden;
}

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

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

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

/* ========== 顶部导航栏 ========== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: transparent;
    transition: var(--transition-smooth);
    padding: 25px 0;
}

.header.scrolled {
    background: rgba(245, 241, 232, 0.98);
    box-shadow: var(--shadow-soft);
    padding: 15px 0;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 28px;
    font-weight: bold;
    color: var(--dark-brown);
    letter-spacing: 2px;
}

.logo span {
    color: var(--primary-wood);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 45px;
}

.nav-menu li a {
    font-size: 16px;
    color: var(--text-dark);
    position: relative;
    padding: 8px 0;
}

.nav-menu li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-wood);
    transition: var(--transition-smooth);
}

.nav-menu li a:hover::after,
.nav-menu li a.active::after {
    width: 100%;
}

.nav-menu li a:hover {
    color: var(--primary-wood);
}

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

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

/* ========== 页脚 ========== */
.footer {
    background: var(--dark-brown);
    color: var(--cream-white);
    padding: 80px 0 40px;
    margin-top: 100px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 50px;
    margin-bottom: 60px;
}

.footer-section h4 {
    font-size: 20px;
    margin-bottom: 25px;
    color: var(--light-brown);
}

.footer-section p,
.footer-section li {
    font-size: 15px;
    line-height: 2.2;
    color: var(--soft-beige);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li a:hover {
    color: var(--light-brown);
    padding-left: 8px;
}

.footer-bottom {
    border-top: 1px solid rgba(232, 220, 196, 0.3);
    padding-top: 30px;
    text-align: center;
    font-size: 14px;
    color: var(--soft-beige);
}

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

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

/* ========== 按钮样式 ========== */
.btn {
    display: inline-block;
    padding: 15px 40px;
    background: var(--primary-wood);
    color: var(--white);
    border: none;
    border-radius: 3px;
    font-size: 16px;
    cursor: pointer;
    transition: var(--transition-smooth);
    letter-spacing: 1px;
}

.btn:hover {
    background: var(--dark-brown);
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

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

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

/* ========== 响应式 ========== */
@media (max-width: 992px) {
    .container {
        padding: 0 25px;
    }

    .nav-menu {
        position: fixed;
        top: 80px;
        right: -100%;
        width: 280px;
        height: calc(100vh - 80px);
        background: var(--cream-white);
        flex-direction: column;
        padding: 40px;
        gap: 25px;
        transition: var(--transition-smooth);
        box-shadow: -5px 0 20px rgba(0,0,0,0.1);
    }

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

    .hamburger {
        display: flex;
    }

    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .logo {
        font-size: 22px;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .btn {
        padding: 12px 30px;
        font-size: 14px;
    }
}