/*
Theme Name: Litbuy SEO Elite Theme
Theme URI: https://litbuyy.shop
Author: SEO Specialist
Description: A clean, full-width, premium style affiliate and SEO landing theme designed for Litbuy guides.
Version: 1.2
License: GNU General Public License v2 or later
Text Domain: litbuy-seo
*/

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    color: #222222;
    background-color: #f8fafc; /* 清新高级的浅灰蓝背景，告别纯白空旷 */
    line-height: 1.6;
}

a {
    text-decoration: none;
    transition: all 0.2s ease;
}

/* Header & Navigation */
.site-header {
    background: #ffffff;
    border-bottom: 1px solid #e2e8f0;
    position: sticky;
    top: 0;
    z-index: 9999;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.02);
}

.header-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 75px;
}

.logo a {
    font-size: 24px;
    font-weight: 800;
    color: #0f172a;
    letter-spacing: -0.5px;
}

.main-navigation ul {
    list-style: none;
    display: flex;
    align-items: center;
}

.main-navigation > ul > li {
    position: relative; /* 核心定位基准 */
    margin-left: 30px;
}

.main-navigation > ul > li > a {
    color: #475569;
    font-weight: 600;
    font-size: 15px;
    padding: 26px 0;
    display: inline-block;
}

.main-navigation > ul > li > a:hover {
    color: #0076ff;
}

/* 🛑 下拉菜单彻底重构修复 (image_bf5efb.png 穿帮修正) */
.main-navigation ul li.dropdown .dropdown-menu {
    display: none !important; /* 默认绝对隐藏 */
    visibility: hidden;
    position: absolute;
    top: 100%;
    right: 0;
    background: #ffffff;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.08);
    border: 1px solid #e2e8f0;
    padding: 8px 0;
    width: 200px;
    border-radius: 8px;
    z-index: 99999;
    flex-direction: column !important; /* 强制垂直排列，阻断横向展开 */
}

/* 悬浮触发逻辑 */
.main-navigation ul li.dropdown:hover .dropdown-menu {
    display: flex !important; /* 悬浮时展现 */
    visibility: visible;
}

.dropdown-menu li {
    margin: 0 !important;
    padding: 0 !important;
    display: block !important;
    width: 100%;
}

.dropdown-menu li a {
    padding: 10px 20px !important;
    display: block !important;
    color: #334155 !important;
    font-size: 14px !important;
    font-weight: 500 !important;
    text-align: left !important;
    width: 100% !important;
}

.dropdown-menu li a:hover {
    background: #f1f5f9;
    color: #0076ff !important;
}

/* Hero Section */
.hero-section {
    background: #ffffff;
    padding: 90px 40px;
    text-align: center;
    border-bottom: 1px solid #e2e8f0;
}

.hero-section h1 {
    font-size: 44px;
    font-weight: 800;
    color: #0f172a;
    margin-bottom: 18px;
    letter-spacing: -0.5px;
}

.hero-section p {
    font-size: 16px;
    color: #64748b;
    max-width: 650px;
    margin: 0 auto 35px;
}

/* 🎨 按钮颜色方案升级（大气、带有高阶质感） */
.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
}

.btn {
    padding: 14px 32px;
    font-size: 15px;
    font-weight: 600;
    border-radius: 6px;
    display: inline-block;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

/* 按钮 1: 科技明蓝 */
.btn-primary {
    background: #0076ff;
    color: #ffffff;
}
.btn-primary:hover {
    background: #005ecb;
}

/* 按钮 2: 稳重轻奢灰 */
.btn-secondary {
    background: #f1f5f9;
    color: #334155;
    border: 1px solid #cbd5e1;
}
.btn-secondary:hover {
    background: #e2e8f0;
}

/* 按钮 3: 警示高转化橙红（引导注册核心键） */
.btn-register {
    background: #ff4757;
    color: #ffffff;
}
.btn-register:hover {
    background: #e84118;
}

/* Main Content Section */
.main-content {
    max-width: 1200px;
    margin: 50px auto;
    padding: 0 20px;
}

/* 饱满整洁的文本模块面板 */
.seo-text-module {
    background: #ffffff;
    padding: 45px;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
    box-shadow: 0 4px 20px rgba(0,0,0,0.01);
    margin-bottom: 50px;
}

.seo-text-module h2 {
    font-size: 26px;
    margin-bottom: 20px;
    color: #0f172a;
    font-weight: 700;
}

.seo-text-module p {
    color: #475569;
    font-size: 15px;
    line-height: 1.7;
    margin-bottom: 16px;
}

/* Grid Layout */
.seo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

.article-card {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.02);
}

.article-card:hover {
    box-shadow: 0 10px 20px rgba(0,0,0,0.04);
}

.article-card h2 {
    font-size: 19px;
    margin-bottom: 12px;
}

.article-card h2 a {
    color: #0f172a;
}

.article-card h2 a:hover {
    color: #0076ff;
}

.article-card p {
    color: #64748b;
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 15px;
}

.internal-link-back {
    display: inline-block;
    font-size: 14px;
    font-weight: 600;
    color: #0076ff;
}

/* Footer */
.site-footer {
    background: #ffffff;
    border-top: 1px solid #e2e8f0;
    padding: 40px;
    text-align: center;
    font-size: 14px;
    color: #64748b;
    margin-top: 80px;
}