/**
 * SYHUO 黑色主题样式 - index_hei-se 模板专用
 * 完全独立的CSS，包含所有必要样式，不依赖其他样式文件
 */

/* ==================== 变量定义 ==================== */
:root {
    --theme-bg-primary: #0a0a0a;
    --theme-bg-secondary: #1a1a1a;
    --theme-bg-tertiary: #151515;
    --theme-border: #2a2a2a;
    --theme-text-primary: #ffffff;
    --theme-text-secondary: #e8e8e8;
    --theme-text-muted: #999999;
    --theme-accent: #00bcd4;
    --theme-accent-hover: #0097a7;
    --theme-danger: #ff5252;
    --theme-success: #4caf50;
    
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
}

/* ==================== 全局重置 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    background: var(--theme-bg-primary);
    scrollbar-gutter: stable;
}

body {
    background-color: var(--theme-bg-primary) !important;
    color: var(--theme-text-secondary) !important;
    font-family: 'Microsoft YaHei', 'PingFang SC', 'Segoe UI', sans-serif;
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

a {
    color: var(--theme-accent);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--theme-accent-hover);
}

h1, h2, h3, h4, h5, h6 {
    color: var(--theme-text-primary) !important;
    font-weight: 600;
}

.text-muted {
    color: var(--theme-text-muted) !important;
}

.page-wrapper {
    background: var(--theme-bg-primary);
    min-height: calc(100vh - 60px);
    width: 100%;
}

/* ==================== 导航栏 ==================== */
.navbar {
    background: linear-gradient(180deg, rgba(20,20,20,0.98) 0%, rgba(10,10,10,0.99) 100%) !important;
    border-bottom: 3px solid var(--theme-accent) !important;
    box-shadow: 0 2px 20px rgba(0,0,0,0.6) !important;
    min-height: 60px;
    height: auto;
    position: sticky !important;
    top: 0 !important;
    z-index: 9999 !important;
    padding: 0 !important;
    overflow: visible !important;
}

.navbar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    height: 100%;
}

/* Logo */
.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.logo {
    display: flex;
    align-items: center;
    color: #fff !important;
    font-weight: bold;
    font-size: 1.2rem;
    text-decoration: none;
}

.logo i {
    color: var(--theme-accent) !important;
    margin-right: 8px;
    font-size: 1.8rem;
}

.logo img {
    height: 50px;
    width: auto;
}

/* 城市定位 */
.current-city {
    background: rgba(0,188,212,0.1) !important;
    border: 1px solid rgba(0,188,212,0.3) !important;
    color: var(--theme-accent) !important;
    border-radius: 20px;
    padding: 4px 12px;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
}

.current-city:hover {
    background: rgba(0,188,212,0.15) !important;
}

.city-name {
    font-weight: 500;
}

/* 导航链接 */
.nav-links {
    display: flex;
    list-style: none;
    gap: 5px;
    margin: 0 !important;
    padding: 0 !important;
    justify-content: center;
    flex: 1;
}

.nav-links li {
    position: relative;
}

.nav-links li::after {
    content: '';
    position: absolute;
    right: -3px;
    top: 50%;
    transform: translateY(-50%);
    height: 16px;
    width: 1px;
    background-color: #555;
}

.nav-links li:last-child::after {
    display: none;
}

.nav-links a {
    color: #ccc !important;
    text-decoration: none !important;
    font-weight: 500;
    font-size: 14px;
    padding: 8px 15px;
    border-radius: 4px;
    transition: all var(--transition-normal) !important;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.nav-links a:hover {
    color: #fff !important;
    background: rgba(255,255,255,0.1);
}

.nav-links a.active {
    color: var(--theme-accent) !important;
    font-weight: 600;
    position: relative;
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 2px;
    background: var(--theme-accent);
    border-radius: 1px;
}

/* 用户操作区域 */
.user-actions {
    display: flex;
    gap: 10px;
    flex-shrink: 0;
    align-items: center;
}

.btn-auth {
    padding: 6px 18px !important;
    font-size: 13px !important;
    border-radius: 20px !important;
    min-width: 70px;
    text-align: center;
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    gap: 5px;
    text-decoration: none;
    transition: all var(--transition-fast);
    white-space: nowrap;
    height: 34px;
    box-sizing: border-box;
    border: 2px solid transparent;
}

.btn-auth i {
    font-size: 12px;
}

.btn-auth.btn-login {
    background: var(--theme-accent) !important;
    color: #fff !important;
    border-color: var(--theme-accent) !important;
    box-shadow: 0 4px 12px rgba(0,188,212,0.35);
}

.btn-auth.btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 18px rgba(0,188,212,0.45);
    background: var(--theme-accent-hover) !important;
    border-color: var(--theme-accent-hover) !important;
}

.btn-auth.btn-register {
    background: transparent !important;
    color: var(--theme-accent) !important;
    border-color: var(--theme-accent) !important;
}

.btn-auth.btn-register:hover {
    background: var(--theme-accent) !important;
    color: #fff !important;
}

/* ==================== 用户下拉菜单 ==================== */
.user-dropdown-wrapper {
    position: relative;
    z-index: 1001;
}

.user-dropdown-trigger {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    padding: 6px 12px;
    border-radius: 20px;
    transition: background var(--transition-fast);
    background: rgba(255,255,255,0.05);
}

.user-dropdown-trigger:hover {
    background: rgba(255,255,255,0.1);
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: rgba(0,188,212,0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    color: var(--theme-accent);
    flex-shrink: 0;
}

.user-greeting {
    font-size: 14px;
    color: #fff;
    font-weight: 500;
}

.dropdown-arrow {
    font-size: 12px;
    color: rgba(255,255,255,0.7);
    transition: transform var(--transition-fast);
}

.user-dropdown-wrapper.active .dropdown-arrow {
    transform: rotate(180deg);
}

.user-dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 200px;
    background: var(--theme-bg-secondary) !important;
    border: 1px solid var(--theme-border) !important;
    border-radius: 8px;
    box-shadow: 0 8px 30px rgba(0,0,0,0.5);
    padding: 8px 0;
    z-index: 1000;
    display: none;
    opacity: 0;
    transform: translateY(-10px);
    transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.user-dropdown-wrapper.active .user-dropdown-menu {
    display: block;
    opacity: 1;
    transform: translateY(0);
}

.dropdown-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    color: var(--theme-text-secondary) !important;
    text-decoration: none !important;
    font-size: 14px;
    transition: background var(--transition-fast);
}

.dropdown-item:hover {
    background: var(--theme-border) !important;
    color: #fff !important;
}

.dropdown-item i {
    width: 20px;
    text-align: center;
    color: var(--theme-accent);
    font-size: 14px;
}

.dropdown-divider {
    height: 1px;
    background: var(--theme-border);
    margin: 6px 0;
}

.logout-item {
    color: var(--theme-danger) !important;
}

.logout-item i {
    color: var(--theme-danger) !important;
}

.logout-item:hover {
    background: rgba(255,82,82,0.1) !important;
}

/* ==================== 卡片和内容 ==================== */
.card, .feature-card {
    background: var(--theme-bg-tertiary) !important;
    border: 1px solid var(--theme-border) !important;
    border-radius: var(--radius-md);
    padding: 20px;
    color: var(--theme-text-secondary);
}

.card:hover, .feature-card:hover {
    border-color: var(--theme-accent) !important;
    box-shadow: 0 4px 20px rgba(0,188,212,0.15);
}

/* ==================== 按钮 ==================== */
.btn-primary {
    background: var(--theme-accent) !important;
    border-color: var(--theme-accent) !important;
    color: #fff !important;
}

.btn-primary:hover {
    background: var(--theme-accent-hover) !important;
    border-color: var(--theme-accent-hover) !important;
}

.btn-outline-primary {
    color: var(--theme-accent) !important;
    border-color: var(--theme-accent) !important;
    background: transparent !important;
}

.btn-outline-primary:hover {
    background: var(--theme-accent) !important;
    color: #fff !important;
}

/* ==================== 表单控件 ==================== */
.form-control, .form-select {
    background: var(--theme-bg-secondary) !important;
    border: 1px solid var(--theme-border) !important;
    color: var(--theme-text-secondary) !important;
}

.form-control:focus, .form-select:focus {
    background: var(--theme-bg-secondary) !important;
    border-color: var(--theme-accent) !important;
    color: var(--theme-text-secondary) !important;
    box-shadow: 0 0 0 0.2rem rgba(0,188,212,0.25) !important;
}

.form-control::placeholder {
    color: var(--theme-text-muted) !important;
}

/* ==================== 页脚 ==================== */
.footer {
    background: var(--theme-bg-secondary) !important;
    border-top: 3px solid var(--theme-accent) !important;
    padding: 0 !important;
    color: var(--theme-text-muted) !important;
    margin-top: auto;
}

.footer-content {
    padding: 20px 0;
    background: var(--theme-bg-secondary);
}

.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 30px;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 15px;
}

.footer-logo-link {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #fff !important;
    text-decoration: none !important;
    font-weight: bold;
    font-size: 18px;
}

.footer-logo-link i {
    font-size: 22px;
    color: var(--theme-accent) !important;
}

.footer-slogan {
    color: var(--theme-text-muted);
    font-size: 14px;
    border-left: 1px solid var(--theme-border);
    padding-left: 15px;
}

.footer-nav {
    display: flex;
    align-items: center;
    gap: 5px;
}

.footer-nav a {
    color: var(--theme-text-muted) !important;
    text-decoration: none !important;
    font-size: 14px;
    padding: 5px 12px;
    transition: color var(--transition-fast);
}

.footer-nav a:hover {
    color: var(--theme-accent) !important;
}

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

.social-icon {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: transparent;
    color: var(--theme-text-muted);
    text-decoration: none;
    transition: all var(--transition-fast);
    font-size: 16px;
    border: 1px solid var(--theme-border);
}

.social-icon:hover {
    background: var(--theme-accent);
    color: #fff;
    border-color: var(--theme-accent);
    transform: translateY(-2px);
}

.footer-copyright {
    text-align: center;
    padding: 15px 0;
    border-top: 1px solid var(--theme-border);
    background: var(--theme-bg-primary);
    color: var(--theme-text-muted);
    font-size: 13px;
}

/* ==================== 响应式设计 ==================== */
@media (max-width: 1200px) {
    .navbar-content {
        padding: 0 15px;
    }
    .nav-links {
        gap: 3px;
        padding: 0 10px;
    }
}

@media (max-width: 992px) {
    .navbar-content {
        flex-wrap: wrap;
        padding: 10px 15px;
        height: auto;
        min-height: 60px;
    }
    .logo-container {
        width: auto;
    }
    .nav-links {
        order: 3;
        width: 100%;
        justify-content: center;
        margin: 10px 0 0 0;
        padding: 0;
        gap: 10px;
    }
    .user-actions {
        order: 2;
    }
}

@media (max-width: 768px) {
    .navbar {
        height: auto !important;
        max-height: none !important;
    }
    .navbar-content {
        flex-wrap: wrap;
        padding: 10px 60px;
        justify-content: center;
        position: relative;
        height: auto;
    }
    .logo-container {
        order: 1;
        width: auto;
        min-width: unset;
        justify-content: center;
    }
    .current-city {
        display: none;
    }
    .user-actions {
        position: absolute;
        right: 15px;
        top: 50%;
        transform: translateY(-50%);
        width: auto;
        min-width: unset;
        gap: 8px;
        order: unset;
        margin-bottom: 0;
    }
    .user-actions .btn-auth {
        padding: 5px 12px !important;
        font-size: 12px !important;
        min-width: 50px;
        height: auto;
    }
    .user-actions .btn-auth i {
        display: none;
    }
    /* 已登录用户的移动端优化 */
    .user-dropdown-trigger .user-greeting {
        display: none;
    }
    .user-dropdown-trigger {
        padding: 4px 8px;
    }
    .user-dropdown-menu {
        right: -15px;
        min-width: 180px;
    }
    .nav-links {
        display: none;
        order: 3;
        width: 100%;
        flex-direction: column;
        background: rgba(20,20,20,0.98);
        padding: 15px 0;
        border-top: 1px solid var(--theme-border);
        margin-top: 10px;
        gap: 0;
    }
    .nav-links.show {
        display: flex;
    }
    .nav-links li {
        width: 100%;
        text-align: center;
    }
    .nav-links li::after {
        display: none;
    }
    .nav-links a {
        display: block;
        padding: 12px 20px;
        font-size: 15px;
        border-radius: 0;
    }
    .nav-links a.active::after {
        display: none;
    }
    .footer-container {
        flex-direction: column;
        text-align: center;
        gap: 15px;
    }
    .footer-brand {
        flex-direction: column;
        gap: 8px;
    }
    .footer-slogan {
        border-left: none;
        padding-left: 0;
    }
}

/* ========== 汉堡菜单样式 ========== */
.hamburger-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    padding: 8px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1001;
}
.hamburger-btn span {
    display: block;
    width: 24px;
    height: 3px;
    background: #fff;
    border-radius: 2px;
    transition: all 0.3s ease;
    margin: 3px 0;
}
.hamburger-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}
.hamburger-btn.active span:nth-child(2) {
    opacity: 0;
}
.hamburger-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

@media (max-width: 768px) {
    .hamburger-btn {
        display: flex;
        position: absolute;
        left: 15px;
        top: 18px;
    }
}

@media (max-width: 480px) {
    .user-actions .btn-auth {
        padding: 4px 10px !important;
        font-size: 11px !important;
        min-width: 45px;
    }
    .nav-links.show {
        display: flex;
    }
    .nav-links {
        display: none;
    }
}

/* ==================== 辅助类 ==================== */
.bg-primary { background-color: var(--theme-bg-primary) !important; }
.bg-secondary { background-color: var(--theme-bg-secondary) !important; }
.bg-tertiary { background-color: var(--theme-bg-tertiary) !important; }
.text-primary { color: var(--theme-text-primary) !important; }
.text-secondary { color: var(--theme-text-secondary) !important; }
.text-accent { color: var(--theme-accent) !important; }
.border-accent { border-color: var(--theme-accent) !important; }

/* ==================== 防止闪烁样式 ==================== */
html, body {
    background: var(--theme-bg-primary) !important;
}

.navbar,
.page-wrapper,
.footer {
    visibility: visible !important;
    opacity: 1 !important;
}