/* 全局样式与变量定义 */
:root {
    --primary-color: #0a2540;
    --secondary-color: #0171b5;
    --accent-color: #f08216;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --gray-color: #6c757d;
    --light-gray: #e9ecef;
    --border-color: #dee2e6;
    --shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', 'Microsoft YaHei', sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    line-height: 1.6;
    color: var(--dark-color);
    overflow-x: hidden;
    min-width: 1200px;
}

.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
}

section {
    padding: 60px 0;
}

p {
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.form-title {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 20px;
    font-size: 1.3rem;
    color: var(--primary-color);
    text-align: center;
}

.btn {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 4px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    cursor: pointer;
    border: none;
}

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

.btn-primary:hover {
    background-color: #0096c7;
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

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

.btn-secondary:hover {
    background-color: rgba(0, 180, 216, 0.1);
}

.btn-login {
    background-color: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    padding: 8px 24px;
    position: relative;
}

.btn-login:hover {
    background-color: rgba(255, 255, 255, 0.1);
    border-color: white;
}

.btn-register {
    background-color: var(--accent-color);
    color: white;
    border: 2px solid var(--accent-color);
    padding: 8px 24px;
    margin-left: 10px;
}

.btn-register:hover {
    background-color: #ff5722;
    border-color: #ff5722;
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

.text-center {
    text-align: center;
}

/* 导航栏样式 - PC版专属 */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(10, 37, 64, 0.95);
    transition: var(--transition);
    padding: 15px 0;
}

header.scrolled {
    padding: 10px 0;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
}

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    color: white;
    display: flex;
    align-items: center;
    flex-shrink: 0;
    /* 移除a标签默认的text-decoration，确保视觉一致 */
    text-decoration: none;
    /* 新增：span默认是行内元素，保持flex布局（原a标签是flex） */
    display: inline-flex;
}

/* 若存在hover等针对a标签的样式，需清除（如果有） */
.logo:hover {
    color: white; /* 确保hover时颜色不变 */
    cursor: default; /* 鼠标指针变为默认，而非手型 */
}

/* 保持logo内图标/图片样式不变（无需修改），仅确保span容器布局正确 */
.logo i {
    color: var(--secondary-color);
    margin-right: 10px;
    font-size: 2rem;
}

.logo-img {
    height: 3rem;
    width: auto;
    margin-right: 10px;
    vertical-align: middle;
}

/* 导航菜单紧挨着Logo，间距20px */
.nav-left {
    display: flex;
    align-items: center;
}

.nav-links {
    display: flex;
    list-style: none;
    margin-left: 50px; /* Logo和导航按钮间距50px */
}

.nav-links li {
    margin: 0 25px;
}

.nav-links a {
    color: white;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: var(--transition);
    position: relative;
    padding: 8px 0;
}

.nav-links a:hover {
    color: var(--secondary-color);
}

.nav-links a:after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    left: 0;
    bottom: 0;
    transition: var(--transition);
}

.nav-links a:hover:after {
    width: 100%;
}

/* 当前导航项样式 */
.nav-links li.a a {
    color: var(--secondary-color);
}

.nav-links li.a a:after {
    width: 100%;
    background: var(--secondary-color);
}

/* 右侧登录注册按钮 */
.nav-right {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

/* 登录下拉框样式 */
.login-dropdown {
    position: relative;
}

.login-form {
    position: absolute;
    top: 100%;
    right: 0;
    width: 320px;
    background: white;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
    padding: 25px;
    margin-top: 15px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
    z-index: 1001;
}

/* 新增：通过active类控制显示 */
.login-dropdown.active .login-form {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.login-form:before {
    content: '';
    position: absolute;
    top: -8px;
    right: 20px;
    width: 16px;
    height: 16px;
    background: white;
    transform: rotate(45deg);
    box-shadow: -2px -2px 5px rgba(0, 0, 0, 0.05);
}

.login-form h4 {
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 20px;
    font-size: 1.3rem;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--dark-color);
    font-weight: 600;
    font-size: 0.9rem;
}

.form-group input {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--light-gray);
    border-radius: 4px;
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus {
    outline: none;
    border-color: var(--secondary-color);
    box-shadow: 0 0 0 3px rgba(0, 180, 216, 0.1);
}

.login-form .btn {
    width: 100%;
    background-color: var(--secondary-color);
    color: white;
    border: none;
    padding: 12px;
    font-weight: 600;
    cursor: pointer;
    margin-top: 10px;
}

.login-form .btn:hover {
    background-color: #0096c7;
}

.login-hint {
    text-align: center;
    font-size: 0.85rem;
    color: var(--gray-color);
    margin-top: 20px;
}

/* 用户信息区域样式 */
.user-info {
    display: flex;
    align-items: center;
    color: white;
}

.user-welcome {
    display: flex;
    align-items: center;
    margin-right: 20px;
}

.user-welcome i {
    font-size: 1.5rem;
    color: var(--secondary-color);
    margin-right: 8px;
}

.user-welcome .username {
    font-weight: 600;
    font-size: 1rem;
}

.user-links {
    display: flex;
    align-items: center;
}

.user-link {
    color: white;
    text-decoration: none;
    font-size: 0.95rem;
    padding: 5px 10px;
    border-radius: 4px;
    transition: var(--transition);
}

.user-link:hover {
    color: var(--secondary-color);
    background-color: rgba(255, 255, 255, 0.1);
}

.separator {
    color: rgba(255, 255, 255, 0.3);
    margin: 0 5px;
    font-size: 0.9rem;
}

/* 页脚区域 */
footer {
    background-color: var(--primary-color);
    color: white;
    padding: 70px 0 30px;
    position: relative; /* 或 absolute, fixed */
    z-index: 200;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 40px;
    margin-bottom: 50px;
}

.footer-column h4 {
    margin-bottom: 25px;
    font-size: 1.3rem;
    position: relative;
    padding-bottom: 10px;
}

.footer-column h4:after {
    content: '';
    position: absolute;
    width: 40px;
    height: 3px;
    background: var(--secondary-color);
    bottom: 0;
    left: 0;
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
    font-size: 18px; /* 核心：给li设置18px字体大小，图标+文字都会继承 */
}

.footer-links a {
    color: #adb5bd;
    font-size: 18px; /* 添加18px字体大小 */
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--secondary-color);
    padding-left: 5px;
}

.social-links {
    display: flex;
    gap: 15px;
    font-size: 18px;
    margin-top: 20px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: white;
    text-decoration: none;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--secondary-color);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #adb5bd;
    font-size: 0.9rem;
}

.footer-bottom a {
    color: #adb5bd;
    text-decoration: none; /* 可选：移除链接默认下划线，保持视觉统一 */
}
.footer-bottom a:hover {
    color: #adb5bd;
}
.footer-bottom .pipe {
    margin: 0 10px;
}
.footer-bottom img {
    margin-right: 5px; /* 图片右侧间距5px，与文字分开 */
    vertical-align: middle; /* 可选：让图片与文字垂直居中，视觉更美观 */
}

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

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


/* 社区导航下拉菜单美化 */
.p_pop.h_pop {
    background: rgba(255, 255, 255, 0.98) !important;
    border: 1px solid rgba(0, 0, 0, 0.1) !important;
    border-radius: 2px !important;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15) !important;
    padding: 8px 0 !important;
    margin-top: 18px !important;
    min-width: 188px !important;
    animation: fadeInUp 0.2s ease-out !important;
}

/* 下拉菜单小箭头美化 */
.p_pop.h_pop:before {
    content: '' !important;
    position: absolute !important;
    top: -6px !important;
    left: 20px !important;
    width: 12px !important;
    height: 12px !important;
    background: rgba(255, 255, 255, 0.98) !important;
    transform: rotate(45deg) !important;
    border-top: 1px solid rgba(0, 0, 0, 0.1) !important;
    border-left: 1px solid rgba(0, 0, 0, 0.1) !important;
    z-index: 1 !important;
}

/* 菜单项样式 */
.p_pop.h_pop li {
    list-style: none !important;
    margin: 0 !important;
    padding: 0 !important;
}

.p_pop.h_pop li a {
    display: block !important;
    padding: 10px 20px !important;
    color: #333 !important;
    text-decoration: none !important;
    font-size: 14px !important;
    font-weight: 400 !important;
    transition: all 0.2s ease !important;
    border-left: 3px solid transparent !important;
    background: transparent !important;
}

/* 菜单项悬停效果 */
.p_pop.h_pop li a:hover {
    background: rgba(26, 115, 232, 0.08) !important;
    color: #1a73e8 !important;
    border-left-color: #1a73e8 !important;
    transform: translateX(3px) !important;
}

/* 菜单项分隔线 */
.p_pop.h_pop li:not(:last-child) {
    border-bottom: 1px solid rgba(0, 0, 0, 0.05) !important;
}

/* 淡入动画 */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

#qmenu {
    /* 清除原来的所有样式 */
    float: none !important;
    display: inline !important;
    margin: 0 !important;
    padding: 0 !important;
    width: auto !important;
    height: auto !important;
    background: transparent !important;
    line-height: normal !important;
    text-align: left !important;
    color: inherit !important;
    font-weight: normal !important;
    overflow: visible !important;
    border: none !important;
    border-radius: 0 !important;
    box-shadow: none !important;
    text-shadow: none !important;
    transform: none !important;
    transition: none !important;
    animation: none !important;
}

/* 快捷导航弹窗窗口美化 - 简单版本 */
#qmenu_menu {
    background: rgba(255, 255, 255, 0.98);
    border-radius: 4px;
    box-shadow: 0 5px 20px rgba(0, 0, 0, 0.15);
    padding: 15px;
    margin-top: 38px !important;
}

/* 导航列表网格布局 - 4个一行 */
#qmenu_menu .cl.nav {
    display: grid !important;
    grid-template-columns: repeat(4, 1fr) !important;
    grid-gap: 15px !important;
    margin: 0 !important;
    padding: 0 !important;
    width: 100% !important;
}

/* 导航项样式 */
#qmenu_menu .cl.nav li {
    list-style: none !important;
    margin: 0 !important;
    padding: 0 !important;
    display: flex !important;
}

/* 导航链接样式 */
#qmenu_menu .cl.nav li a {
    display: flex !important;
    flex-direction: column !important;
    align-items: center !important;
    justify-content: center !important;
    width: 100% !important;

    text-decoration: none !important;
    color: #333 !important;
    font-size: 18px !important;
    font-weight: 500 !important;
    border-radius: 4px !important;
    transition: all 0.2s ease !important;
    border: 1px solid rgba(0, 0, 0, 0.1) !important;
    background-color: #f8f9fa !important;

    /* 确保背景图片正常显示 */
    background-size: 60px 60px !important;
    background-position: center 15px !important;
    background-repeat: no-repeat !important;
    border-radius: 8px !important; /* 通用圆角，数值越大圆角越明显 */

    /* 为文字留出空间 */
    padding-top: 90px !important;
    position: relative !important;
}

/* 确保文字显示 */
#qmenu_menu .cl.nav li a::after {
    content: attr(title);
    display: block;
    margin-top: 8px;
    font-size: 14px;
    font-weight: 500;
}

/* 如果不需要伪元素显示文字，可以直接显示文字本身 */
#qmenu_menu .cl.nav li a {
    color: #333 !important;
}

/* 悬停效果 */
#qmenu_menu .cl.nav li a:hover {
    background-color: #e9ecef !important;
    border-color: #1a73e8 !important;
    color: #1a73e8 !important;
}
/* 弹窗小箭头美化 */
#qmenu_menu.p_pop:before {
    content: '';
    position: absolute;
    top: -6px;
    right: 30px;
    width: 12px;
    height: 12px;
    background: rgba(255, 255, 255, 0.98);
    transform: rotate(45deg);
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    border-left: 1px solid rgba(0, 0, 0, 0.1);
    z-index: 1;
}