/* ==================== 基础样式 ==================== */
body {
    font-family: 'Raleway', sans-serif;
    background-color: #111;
}

/* 为固定导航菜单预留空间 */
.main-content,
main {
    padding-top: 80px; /* 导航菜单高度 h-20 = 80px */
}

h1, h2, h3, .font-poppins {
    font-family: 'Poppins', sans-serif;
}

/* ==================== 自定义颜色变量 ==================== */
:root {
    --primary-blue: #0050b5;
    --accent-green: #00bf91;
    --title-brown: #432818;
    --text-dark: #04151f;
    --border-radius-sm: 4px;
    --border-radius-md: 6px;
}

/* ==================== 导航菜单样式 ==================== */
.main-menu {
    font-family: 'Raleway', sans-serif;
    background: linear-gradient(to bottom, rgba(4, 21, 31, 0.98), rgba(4, 21, 31, 0.95));
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 80, 181, 0.2);
    transition: all 0.3s ease;
}

.main-menu.scrolled {
    background: rgba(4, 21, 31, 0.99);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

/* 品牌标志样式 */
.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
    transition: transform 0.3s ease;
}

.logo-container:hover {
    transform: translateY(-2px);
}

.logo-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--accent-green) 100%);
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(0, 80, 181, 0.3);
}

.logo-text {
    font-family: 'Poppins', sans-serif;
    color: #ffffff;
    font-size: 20px;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.logo-tagline {
    font-size: 11px;
    color: #a0a0a0;
    font-weight: 400;
    margin-top: -2px;
}

/* 菜单链接样式 */
.menu-link {
    position: relative;
    color: #e8e8e8;
    font-weight: 500;
    font-size: 15px;
    padding: 10px 18px;
    transition: all 0.3s ease;
    border-radius: var(--border-radius-sm);
    display: flex;
    align-items: center;
    gap: 4px;
}

.menu-link:hover {
    color: var(--accent-green);
    background-color: rgba(0, 80, 181, 0.12);
}

.menu-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--accent-green);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.menu-link:hover::after {
    width: 70%;
}

.menu-link.active {
    color: var(--accent-green);
    background-color: rgba(0, 191, 145, 0.1);
}

.menu-arrow {
    font-size: 18px;
    transition: transform 0.3s ease;
}

.menu-item:hover .menu-arrow {
    transform: rotate(180deg);
}

/* 下拉菜单样式 */
.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 280px;
    background: linear-gradient(145deg, #04151f 0%, #0a2847 100%);
    border: 1px solid rgba(0, 191, 145, 0.25);
    border-radius: var(--border-radius-md);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.6);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-15px);
    transition: all 0.35s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    z-index: 1000;
    padding: 8px 0;
    margin-top: 8px;
}

.menu-item:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* 下拉菜单项样式 */
.dropdown-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    color: #d0d0d0;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.25s ease;
    border-left: 3px solid transparent;
    position: relative;
}

.dropdown-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    width: 0;
    height: 100%;
    background: rgba(0, 191, 145, 0.08);
    transition: width 0.25s ease;
    z-index: -1;
}

.dropdown-item:hover::before {
    width: 100%;
}

.dropdown-item:hover {
    color: #ffffff;
    border-left-color: var(--accent-green);
    padding-left: 24px;
}

.dropdown-item i {
    font-size: 18px;
    color: var(--accent-green);
    transition: transform 0.25s ease;
    flex-shrink: 0;
}

.dropdown-item:hover i {
    transform: translateX(4px);
}

/* 下拉菜单分隔线 */
.dropdown-divider {
    height: 1px;
    background: linear-gradient(to right, transparent, rgba(255, 255, 255, 0.1), transparent);
    margin: 8px 0;
}

/* CTA按钮样式 */
.cta-button {
    background: linear-gradient(135deg, var(--accent-green) 0%, #009975 100%);
    color: #ffffff;
    font-weight: 600;
    font-size: 15px;
    padding: 11px 26px;
    border-radius: var(--border-radius-sm);
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 191, 145, 0.35);
    display: flex;
    align-items: center;
    gap: 8px;
    border: none;
    cursor: pointer;
}

.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 191, 145, 0.5);
    background: linear-gradient(135deg, #00d4a0 0%, #00bf91 100%);
}

.cta-button:active {
    transform: translateY(0);
}

/* 移动端菜单按钮 */
.mobile-menu-button {
    background: rgba(0, 80, 181, 0.2);
    border: 1px solid rgba(0, 191, 145, 0.3);
    border-radius: var(--border-radius-sm);
    padding: 10px;
    color: #ffffff;
    transition: all 0.3s ease;
    cursor: pointer;
}

.mobile-menu-button:hover {
    background: rgba(0, 80, 181, 0.4);
    border-color: var(--accent-green);
}

/* 移动端菜单遮罩 */
.mobile-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(4px);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 9998;
}

.mobile-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* 移动端菜单面板 */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 85%;
    max-width: 400px;
    height: 100vh;
    background: linear-gradient(180deg, #04151f 0%, #0a2847 100%);
    box-shadow: -5px 0 30px rgba(0, 0, 0, 0.8);
    transition: right 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    z-index: 9999;
    overflow-y: auto;
}

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

/* 移动端菜单头部 */
.mobile-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 80, 181, 0.1);
}

.mobile-close-button {
    background: rgba(220, 38, 38, 0.2);
    border: 1px solid rgba(220, 38, 38, 0.4);
    border-radius: var(--border-radius-sm);
    padding: 8px;
    color: #ff6b6b;
    transition: all 0.3s ease;
    cursor: pointer;
}

.mobile-close-button:hover {
    background: rgba(220, 38, 38, 0.4);
    transform: rotate(90deg);
}

/* 移动端菜单项 */
.mobile-menu-item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.mobile-menu-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    color: #e8e8e8;
    font-weight: 500;
    font-size: 15px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.mobile-menu-link:hover {
    background: rgba(0, 80, 181, 0.15);
    color: var(--accent-green);
}

.mobile-menu-link i:first-child {
    color: var(--accent-green);
    font-size: 20px;
}

.mobile-submenu-arrow {
    font-size: 20px;
    transition: transform 0.3s ease;
}

.mobile-submenu-arrow.active {
    transform: rotate(180deg);
}

/* 移动端子菜单 */
.mobile-submenu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    background: rgba(0, 80, 181, 0.08);
}

.mobile-submenu.active {
    max-height: 1000px;
}

.mobile-submenu-item {
    display: block;
    padding: 12px 20px 12px 56px;
    color: #b8b8b8;
    font-size: 14px;
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
}

.mobile-submenu-item:hover {
    color: #ffffff;
    background: rgba(0, 191, 145, 0.1);
    border-left-color: var(--accent-green);
    padding-left: 60px;
}

/* 移动端CTA容器 */
.mobile-cta-container {
    padding: 20px;
    background: rgba(0, 0, 0, 0.2);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

/* 报价弹窗遮罩 */
.quote-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(6px);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 10000;
}

.quote-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* 报价弹窗 */
.quote-popup {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    width: 90%;
    max-width: 600px;
    max-height: 90vh;
    background: linear-gradient(145deg, #04151f 0%, #0a2847 100%);
    border: 2px solid rgba(0, 191, 145, 0.3);
    border-radius: var(--border-radius-md);
    box-shadow: 0 25px 70px rgba(0, 0, 0, 0.9);
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    z-index: 10001;
    overflow-y: auto;
}

.quote-popup.active {
    opacity: 1;
    visibility: visible;
    transform: translate(-50%, -50%) scale(1);
}

.quote-popup-header {
    padding: 32px 32px 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.quote-popup-title {
    font-family: 'Poppins', sans-serif;
    font-size: 28px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 8px;
}

.quote-popup-subtitle {
    color: #a0a0a0;
    font-size: 14px;
}

.quote-popup-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(220, 38, 38, 0.2);
    border: 1px solid rgba(220, 38, 38, 0.4);
    border-radius: var(--border-radius-sm);
    padding: 8px;
    color: #ff6b6b;
    cursor: pointer;
    transition: all 0.3s ease;
}

.quote-popup-close:hover {
    background: rgba(220, 38, 38, 0.4);
    transform: rotate(90deg);
}

/* 表单样式 */
.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    color: var(--accent-green);
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 8px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(0, 191, 145, 0.2);
    border-radius: var(--border-radius-sm);
    color: #ffffff;
    padding: 12px 16px;
    font-size: 14px;
    font-family: 'Raleway', sans-serif;
    transition: all 0.3s ease;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--accent-green);
    background: rgba(255, 255, 255, 0.08);
    box-shadow: 0 0 0 3px rgba(0, 191, 145, 0.1);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: #6b7280;
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

.form-select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2300bf91'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 20px;
    padding-right: 40px;
}

.form-submit-button {
    width: 100%;
    background: linear-gradient(135deg, var(--accent-green) 0%, #009975 100%);
    color: #ffffff;
    font-weight: 600;
    font-size: 16px;
    padding: 14px 24px;
    border-radius: var(--border-radius-sm);
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0, 191, 145, 0.35);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.form-submit-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 191, 145, 0.5);
    background: linear-gradient(135deg, #00d4a0 0%, #00bf91 100%);
}

.form-submit-button:active {
    transform: translateY(0);
}

/* 隐私声明 */
.privacy-notice {
    font-size: 12px;
    color: #888;
    text-align: center;
    margin-top: 16px;
    line-height: 1.6;
}

.privacy-notice a {
    color: var(--accent-green);
    text-decoration: underline;
}

.privacy-notice a:hover {
    color: #00d4a0;
}

/* 响应式调整 */
@media (max-width: 1024px) {
    .menu-link {
        padding: 8px 12px;
        font-size: 14px;
    }
}

@media (max-width: 768px) {
    .logo-text {
        font-size: 18px;
    }

    .logo-tagline {
        font-size: 10px;
    }

    .logo-icon {
        width: 42px;
        height: 42px;
    }
}