/* ========================================
   芒果软件建站 - 全局样式表
   户外鞋履风格：军绿 + 卡其 + 炭黑
   ======================================== */

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

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

body {
    font-family: "Helvetica Neue", Helvetica, Arial, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    line-height: 1.8;
    color: #2d3436;
    background-color: #f5f5f0;
    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 {
    --army-green: #4a5d4e;
    --army-green-dark: #3a4a3e;
    --khaki: #c4b59a;
    --khaki-light: #d4c5aa;
    --charcoal: #2d3436;
    --charcoal-light: #4a5558;
    --cream: #f5f5f0;
    --white: #ffffff;
    --sand: #e8e4d9;
}

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

@media (max-width: 768px) {
    .container {
        padding: 0 20px;
    }
}

/* ========================================
   导航栏样式
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: transparent;
    transition: all 0.4s ease;
    padding: 25px 0;
}

.header.scrolled {
    background: rgba(45, 52, 54, 0.98);
    padding: 15px 0;
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.logo img {
    height: 45px;
    width: auto;
}

.logo-text {
    font-size: 24px;
    font-weight: 700;
    color: var(--white);
    letter-spacing: 2px;
}

.nav-menu {
    display: flex;
    gap: 35px;
}

.nav-menu a {
    color: var(--white);
    font-size: 15px;
    font-weight: 500;
    letter-spacing: 1px;
    position: relative;
    padding: 8px 0;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--khaki);
    transition: width 0.3s ease;
}

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

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

.hamburger span {
    width: 28px;
    height: 3px;
    background: var(--white);
    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);
}

@media (max-width: 992px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--charcoal);
        flex-direction: column;
        padding: 100px 40px;
        gap: 25px;
        transition: right 0.4s ease;
    }

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

    .hamburger {
        display: flex;
    }
}

/* ========================================
   页脚样式
   ======================================== */
.footer {
    background: var(--charcoal);
    color: var(--white);
    padding: 80px 0 40px;
}

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

@media (max-width: 992px) {
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 576px) {
    .footer-content {
        grid-template-columns: 1fr;
    }
}

.footer-section h4 {
    font-size: 18px;
    margin-bottom: 25px;
    color: var(--khaki);
    letter-spacing: 1px;
}

.footer-section p {
    color: #b2bec3;
    line-height: 2;
    font-size: 14px;
}

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

.footer-section ul li a {
    color: #b2bec3;
    font-size: 14px;
}

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

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 15px;
    color: #b2bec3;
    font-size: 14px;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 30px;
    text-align: center;
    color: #b2bec3;
    font-size: 13px;
}

/* ========================================
   通用组件
   ======================================== */
.section {
    padding: 100px 0;
}

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

.section-title {
    font-size: 42px;
    color: var(--charcoal);
    margin-bottom: 15px;
    letter-spacing: 2px;
}

.section-subtitle {
    font-size: 16px;
    color: var(--army-green);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.8;
}

.btn {
    display: inline-block;
    padding: 15px 40px;
    background: var(--army-green);
    color: var(--white);
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 1px;
    border: 2px solid var(--army-green);
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn:hover {
    background: transparent;
    color: var(--army-green);
}

.btn-outline {
    background: transparent;
    color: var(--army-green);
}

.btn-outline:hover {
    background: var(--army-green);
    color: var(--white);
}

.btn-light {
    background: var(--white);
    color: var(--charcoal);
    border-color: var(--white);
}

.btn-light:hover {
    background: transparent;
    color: var(--white);
}

/* 卡片样式 */
.card {
    background: var(--white);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
    transition: all 0.4s ease;
}

.card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 40px rgba(0, 0, 0, 0.12);
}

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

.card-content {
    padding: 25px;
}

.card-title {
    font-size: 18px;
    color: var(--charcoal);
    margin-bottom: 12px;
}

.card-text {
    color: #636e72;
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 15px;
}

.card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: #b2bec3;
}

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

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

/* 分页样式（隐藏） */
.pagination {
    display: none;
}