/* ========================================
   赫拉在线建站 - 全局样式表
   风格：包包休闲风 | 配色：卡其 + 浅绿 + 纯白
   ======================================== */

/* CSS Reset & 基础设置 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #3d3d3d;
    background-color: #fefefe;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

ul, ol {
    list-style: none;
}

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

/* 颜色变量 */
:root {
    --khaki-primary: #c4a574;
    --khaki-light: #d4b890;
    --khaki-dark: #a89060;
    --green-soft: #a8c69f;
    --green-fresh: #b8d4af;
    --white-pure: #ffffff;
    --white-off: #f8f7f5;
    --text-dark: #3d3d3d;
    --text-gray: #6b6b6b;
    --shadow-soft: 0 4px 20px rgba(196, 165, 116, 0.15);
    --shadow-hover: 0 8px 30px rgba(196, 165, 116, 0.25);
}

/* ========================================
   顶部导航栏
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: transparent;
    transition: all 0.4s ease;
    padding: 20px 0;
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.08);
    padding: 12px 0;
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo img {
    height: 48px;
    width: auto;
}

.logo-text {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--khaki-primary);
    letter-spacing: 1px;
}

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

.nav-item {
    position: relative;
}

.nav-link {
    display: block;
    padding: 10px 20px;
    color: var(--text-dark);
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: 25px;
    transition: all 0.3s ease;
}

.nav-link:hover,
.nav-link.active {
    background: var(--khaki-primary);
    color: var(--white-pure);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 5px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--green-soft);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 60%;
}

/* 汉堡菜单 */
.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 5px;
}

.hamburger span {
    width: 28px;
    height: 3px;
    background: var(--khaki-primary);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

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

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* ========================================
   页脚
   ======================================== */
.footer {
    background: linear-gradient(135deg, var(--khaki-primary) 0%, var(--khaki-dark) 100%);
    color: var(--white-pure);
    padding: 60px 0 30px;
}

.footer-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 5%;
}

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

.footer-section h3 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: var(--white-pure);
    position: relative;
    padding-bottom: 10px;
}

.footer-section h3::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--green-soft);
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.85);
    transition: all 0.3s ease;
}

.footer-links a:hover {
    color: var(--white-pure);
    padding-left: 8px;
}

.footer-contact p {
    margin-bottom: 12px;
    color: rgba(255, 255, 255, 0.85);
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: 30px;
    text-align: center;
    color: rgba(255, 255, 255, 0.7);
}

/* ========================================
   通用组件
   ======================================== */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 5%;
}

.section {
    padding: 100px 0;
}

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

.section-title {
    font-size: 2.5rem;
    color: var(--text-dark);
    margin-bottom: 15px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 80px;
    height: 3px;
    background: linear-gradient(90deg, var(--khaki-primary), var(--green-soft));
}

.section-subtitle {
    color: var(--text-gray);
    font-size: 1.1rem;
    margin-top: 20px;
}

.btn {
    display: inline-block;
    padding: 14px 35px;
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--khaki-primary), var(--khaki-dark));
    color: var(--white-pure);
}

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

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

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

/* 卡片样式 */
.card {
    background: var(--white-pure);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    transition: all 0.4s ease;
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
}

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

.card-content {
    padding: 25px;
}

.card-title {
    font-size: 1.3rem;
    color: var(--text-dark);
    margin-bottom: 12px;
}

.card-text {
    color: var(--text-gray);
    line-height: 1.7;
    margin-bottom: 15px;
}

.card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-gray);
    font-size: 0.9rem;
}

/* ========================================
   动画效果
   ======================================== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

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

/* ========================================
   响应式设计
   ======================================== */
@media (max-width: 992px) {
    .nav-menu {
        position: fixed;
        top: 80px;
        right: -100%;
        width: 280px;
        height: calc(100vh - 80px);
        background: var(--white-pure);
        flex-direction: column;
        padding: 30px;
        box-shadow: -5px 0 20px rgba(0, 0, 0, 0.1);
        transition: right 0.4s ease;
    }

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

    .hamburger {
        display: flex;
    }

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

@media (max-width: 768px) {
    .section {
        padding: 60px 0;
    }

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

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

@media (max-width: 576px) {
    .logo-text {
        font-size: 1.3rem;
    }

    .btn {
        padding: 12px 25px;
        font-size: 0.9rem;
    }
}