/* 
 * 淘好建站 - 主样式表
 * 机械复古风 | 砖红 + 深灰 + 浅棕
 * taohaoshop.com
 */

:root {
    --brick-red: #8B3A3A;
    --deep-gray: #2C2C2C;
    --light-brown: #C4A574;
    --cream: #F5F0E6;
    --rust: #A0522D;
    --charcoal: #36454F;
    --antique-gold: #D4AF37;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Georgia', 'Times New Roman', serif;
    background-color: var(--cream);
    color: var(--deep-gray);
    line-height: 1.6;
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

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

/* ========== 导航栏 ========== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: linear-gradient(135deg, var(--deep-gray) 0%, var(--charcoal) 100%);
    padding: 15px 0;
    transition: all 0.4s ease;
    border-bottom: 3px solid var(--brick-red);
}

.navbar.scrolled {
    background: linear-gradient(135deg, var(--brick-red) 0%, var(--rust) 100%);
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

.logo {
    font-size: 28px;
    font-weight: bold;
    color: var(--light-brown);
    text-transform: uppercase;
    letter-spacing: 3px;
    border: 2px solid var(--light-brown);
    padding: 8px 20px;
    background: var(--deep-gray);
}

.nav-menu {
    display: flex;
    gap: 30px;
}

.nav-link {
    color: var(--cream);
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 8px 15px;
    position: relative;
    overflow: hidden;
}

.nav-link::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: -100%;
    width: 100%;
    height: 2px;
    background: var(--light-brown);
    transition: left 0.3s ease;
}

.nav-link:hover::before {
    left: 0;
}

.nav-link:hover {
    color: var(--light-brown);
}

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--light-brown);
    transition: all 0.3s ease;
}

/* ========== 页脚 ========== */
.footer {
    background: linear-gradient(135deg, var(--deep-gray) 0%, var(--charcoal) 100%);
    color: var(--cream);
    padding: 60px 0 30px;
    border-top: 4px solid var(--brick-red);
}

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

.footer-section h3 {
    color: var(--light-brown);
    margin-bottom: 20px;
    font-size: 18px;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.footer-section p,
.footer-section a {
    color: var(--cream);
    opacity: 0.8;
    margin-bottom: 10px;
    display: block;
}

.footer-section a:hover {
    color: var(--light-brown);
    opacity: 1;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.footer-links a {
    font-size: 13px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255,255,255,0.1);
    font-size: 13px;
    opacity: 0.7;
}

/* ========== 按钮样式 ========== */
.btn {
    display: inline-block;
    padding: 12px 30px;
    background: var(--brick-red);
    color: var(--cream);
    border: 2px solid var(--brick-red);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--light-brown);
    transition: left 0.3s ease;
    z-index: -1;
}

.btn:hover::before {
    left: 0;
}

.btn:hover {
    color: var(--deep-gray);
    border-color: var(--light-brown);
}

.btn-outline {
    background: transparent;
    color: var(--brick-red);
}

.btn-outline::before {
    background: var(--brick-red);
}

.btn-outline:hover {
    color: var(--cream);
}

/* ========== 卡片样式 ========== */
.card {
    background: var(--cream);
    border: 2px solid var(--deep-gray);
    overflow: hidden;
    transition: all 0.4s ease;
    position: relative;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--brick-red), var(--light-brown));
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

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

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

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

.card-content {
    padding: 25px;
}

.card-title {
    font-size: 18px;
    color: var(--deep-gray);
    margin-bottom: 10px;
    text-transform: uppercase;
}

.card-text {
    color: var(--charcoal);
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 15px;
}

.card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    color: var(--rust);
}

/* ========== 对角分割布局 ========== */
.diagonal-section {
    position: relative;
    padding: 100px 0;
    overflow: hidden;
}

.diagonal-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--cream) 50%, var(--deep-gray) 50%);
    z-index: -1;
}

.diagonal-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, transparent 45%, var(--brick-red) 45%, var(--brick-red) 55%, transparent 55%);
    opacity: 0.1;
    z-index: -1;
}

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

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

.slide-in-left {
    opacity: 0;
    transform: translateX(-50px);
    transition: all 0.6s ease;
}

.slide-in-left.visible {
    opacity: 1;
    transform: translateX(0);
}

.slide-in-right {
    opacity: 0;
    transform: translateX(50px);
    transition: all 0.6s ease;
}

.slide-in-right.visible {
    opacity: 1;
    transform: translateX(0);
}

/* ========== 响应式设计 ========== */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: var(--deep-gray);
        flex-direction: column;
        align-items: center;
        justify-content: center;
        gap: 30px;
        transition: left 0.4s ease;
    }

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

    .diagonal-section::before {
        background: linear-gradient(135deg, var(--cream) 60%, var(--deep-gray) 60%);
    }

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

@media (max-width: 480px) {
    .logo {
        font-size: 22px;
        padding: 6px 15px;
    }

    .btn {
        padding: 10px 20px;
        font-size: 12px;
    }
}