/* 茶经网站响应式设计 */

/* 基础响应式设置 */
:root {
    --container-padding: 15px;
}

/* 通用响应式类 */
.img-fluid {
    max-width: 100%;
    height: auto;
}

.d-none {
    display: none !important;
}

.d-block {
    display: block !important;
}

/* 大屏幕设备 (大于等于1200px) */
@media (min-width: 1200px) {
    .container {
        max-width: 1140px;
        margin: 0 auto;
        padding: 0 var(--container-padding);
    }
}

/* 中等屏幕设备 (992px-1199px) */
@media (min-width: 992px) and (max-width: 1199px) {
    .container {
        max-width: 960px;
        margin: 0 auto;
        padding: 0 var(--container-padding);
    }
    
    /* 导航栏调整 */
    .navbar-nav .nav-link {
        padding: 0.5rem 0.75rem;
    }
    
    /* 轮播图调整 */
    .hero-title {
        font-size: 5.5rem;
    }
    
    .hero-description {
        font-size: 1.2rem;
    }
}

/* 平板设备 (768px-991px) */
@media (min-width: 768px) and (max-width: 991px) {
    .container {
        max-width: 720px;
        margin: 0 auto;
        padding: 0 var(--container-padding);
    }
    
    /* 导航栏调整 */
    .navbar-brand img {
        height: 30px;
    }
    
    /* 轮播图调整 */
    .hero-title {
        font-size: 4.5rem;
    }
    
    .hero-description {
        font-size: 1.1rem;
        max-width: 95%;
    }
    
    .hero-content {
        bottom: 20%;
    }
    
    .btn-primary {
        padding: 1rem 2.5rem;
        font-size: 1.1rem;
    }
    
    /* 页脚调整 */
    .footer {
        padding: 3rem 0;
    }
}

/* 手机设备 (576px-767px) */
@media (min-width: 576px) and (max-width: 767px) {
    .container {
        max-width: 540px;
        margin: 0 auto;
        padding: 0 var(--container-padding);
    }
    
    /* 导航栏调整 */
    .navbar-brand img {
        height: 28px;
    }
    
    /* 轮播图调整 */
    .hero-title {
        font-size: 3.5rem;
    }
    
    .hero-description {
        font-size: 1rem;
        max-width: 100%;
        margin-bottom: 2rem;
    }
    
    .hero-content {
        bottom: 15%;
        left: 5%;
        max-width: 90%;
    }
    
    .btn-primary {
        padding: 0.8rem 2rem;
        font-size: 1rem;
    }
    
    .hero-nav {
        bottom: 5%;
        left: 5%;
    }
    
    /* 页脚调整 */
    .footer {
        padding: 2.5rem 0;
        margin-top: 2.5rem;
    }
    
    .footer .col-md-4 {
        margin-bottom: 2rem;
    }
}

/* 小型手机设备 (小于576px) */
@media (max-width: 575px) {
    .container {
        width: 100%;
        padding: 0 var(--container-padding);
    }
    
    /* 导航栏调整 */
    .navbar-brand img {
        height: 26px;
    }
    
    .navbar-toggler {
        padding: 0.25rem 0.5rem;
    }
    
    /* 轮播图调整 */
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-description {
        font-size: 0.9rem;
        margin-bottom: 1.5rem;
    }
    
    .hero-content {
        bottom: 15%;
        left: 5%;
        max-width: 90%;
    }
    
    .btn-primary {
        padding: 0.7rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .hero-nav {
        bottom: 5%;
        left: 5%;
    }
    
    .hero-nav-item {
        width: 36px;
        height: 3px;
    }
    
    .hero-nav-item.active {
        width: 48px;
    }
    
    /* 页脚调整 */
    .footer {
        padding: 2rem 0;
        margin-top: 2rem;
        text-align: center;
    }
    
    .footer .col-md-4 {
        margin-bottom: 1.5rem;
    }
    
    .footer h4 {
        margin-bottom: 1rem;
    }
    
    /* 茶经内容页面调整 */
    .tea-content {
        padding: 1rem;
    }
}

/* 特定组件的响应式调整 */

/* 导航栏响应式 */
@media (max-width: 991px) {
    .navbar-collapse {
        background-color: rgba(18,18,18,0.95);
        padding: 1rem;
        border-radius: 0 0 8px 8px;
        max-height: 80vh;
        overflow-y: auto;
    }
    
    .navbar-nav {
        margin-top: 0.5rem;
    }
    
    .nav-user {
        margin-top: 1rem;
        justify-content: center;
    }
    
    .navbar-nav .nav-item {
        margin: 0.25rem 0;
    }
    
    .navbar-nav .nav-link {
        padding: 0.75rem 1rem;
        border-radius: 4px;
        transition: all 0.3s ease;
    }
    
    .navbar-nav .nav-link:hover,
    .navbar-nav .nav-item.active .nav-link {
        background-color: rgba(255, 255, 255, 0.1);
    }
}

/* 用户下拉菜单响应式 */
@media (max-width: 767px) {
    .dropdown-menu {
        position: static;
        float: none;
        width: 100%;
        margin-top: 0.5rem;
        background-color: rgba(255,255,255,0.95);
    }
    
    .navbar-brand img {
        height: 24px;
    }
    
    .navbar-toggler {
        padding: 0.2rem 0.4rem;
    }
    
    .navbar-nav .nav-link {
        font-size: 0.95rem;
        padding: 0.6rem 0.8rem;
    }
    
    .navbar {
        padding: 0.5rem 0;
    }
}

/* 超小屏幕设备导航栏调整 */
@media (max-width: 575px) {
    .navbar-brand img {
        height: 22px;
    }
    
    .navbar-toggler {
        padding: 0.15rem 0.35rem;
        font-size: 0.9rem;
    }
    
    .navbar-nav .nav-link {
        font-size: 0.9rem;
        padding: 0.5rem 0.7rem;
    }
    
    .navbar-collapse {
        padding: 0.8rem;
    }
    
    .navbar {
        padding: 0.4rem 0;
    }
}

/* 茶经页面响应式 */
@media (max-width: 991px) {
    .tea-content {
        padding: 1.5rem;
    }
    
    .tea-chapter {
        padding: 1.5rem;
    }
}

/* 茶叶图谱响应式优化 */
@media (max-width: 991px) {
    .tea-map {
        padding: 15px;
        margin-top: 15px;
        margin-bottom: 15px;
    }
    
    .tea-map-title {
        font-size: 1.6rem !important;
        margin-bottom: 12px;
        padding-bottom: 6px;
    }
    
    .tea-items {
        gap: 12px;
    }
    
    .tea-item {
        width: 100%;
    }
    
    .tea-image {
        height: 110px;
    }
    
    .tea-info {
        padding: 10px;
    }
    
    .tea-name {
        font-size: 15px;
    }
    
    .tea-desc {
        font-size: 13px;
    }
}

@media (max-width: 767px) {
    .tea-map {
        padding: 12px;
        margin-top: 12px;
        margin-bottom: 12px;
    }
    
    .tea-map-title {
        font-size: 1.4rem !important;
        margin-bottom: 10px;
    }
    
    .tea-image {
        height: 100px;
    }
}

@media (max-width: 575px) {
    .tea-map {
        padding: 10px;
        margin-top: 10px;
        margin-bottom: 10px;
        border-radius: 10px;
    }
    
    .tea-map-title {
        font-size: 1.2rem !important;
        margin-bottom: 8px;
        padding-bottom: 5px;
    }
    
    .tea-items {
        gap: 10px;
    }
    
    .tea-image {
        height: 90px;
    }
    
    .tea-info {
        padding: 8px;
    }
    
    .tea-name {
        font-size: 14px;
        margin-bottom: 3px;
    }
    
    .tea-desc {
        font-size: 12px;
        line-height: 1.3;
    }
}

/* 时间轴响应式优化 */
@media (max-width: 767px) {
    .node-year {
        font-size: 10px;
    }
    
    .dynasty-tooltip {
        width: 220px;
        padding: 10px;
        left: 50%;
        transform: translateX(-50%);
    }
    
    .tooltip-title {
        font-size: 14px;
        margin-bottom: 6px;
    }
    
    .tooltip-facts {
        font-size: 12px;
        margin-bottom: 6px;
    }
    
    .tooltip-tag {
        font-size: 10px;
        padding: 2px 6px;
        margin: 2px;
    }
    
    /* 中等屏幕设备上的AI助手按钮和聊天容器调整 */
    .ai-assistant-btn {
        width: 55px;
        height: 55px;
        right: 20px;
        bottom: 20px;
    }
    
    .chat-container {
        width: 350px;
        height: 550px;
        right: 20px;
        bottom: 90px;
    }
    
    .chat-header {
        padding: 1rem;
    }
    
    .ai-avatar {
        width: 45px;
        height: 45px;
    }
    
    .chat-title {
        font-size: 1.1rem;
    }
    
    .message {
        max-width: 88%;
        padding: 11px 15px;
        font-size: 0.92rem;
    }
}

@media (max-width: 575px) {
    .timeline {
        flex-wrap: wrap;
        justify-content: center;
        gap: 15px;
        padding: 10px 5px 20px;
    }
    
    .timeline-node {
        margin: 5px;
    }
    
    .node {
        width: 42px;
        height: 42px;
        font-size: 11px;
        border-width: 1.5px;
    }
    
    .node-year {
        font-size: 9px;
        bottom: -18px;
    }
    
    .dynasty-tooltip {
        width: 200px;
        padding: 8px;
    }
    
    .tooltip-title {
        font-size: 13px;
        margin-bottom: 5px;
    }
    
    .tooltip-facts {
        font-size: 11px;
        line-height: 1.3;
    }
    
    .tooltip-tag {
        font-size: 9px;
        padding: 1px 5px;
        margin: 1px;
    }
    
    /* 小屏幕设备上的AI助手按钮和聊天容器调整 */
    .ai-assistant-btn {
        width: 50px;
        height: 50px;
        right: 15px;
        bottom: 15px;
    }
    
    .chat-container {
        width: 90%;
        height: 80vh;
        right: 5%;
        bottom: 80px;
        border-radius: 15px;
    }
    
    .chat-header {
        padding: 0.8rem;
        border-radius: 15px 15px 0 0;
    }
    
    .ai-avatar {
        width: 40px;
        height: 40px;
        border-radius: 12px;
    }
    
    .chat-title {
        font-size: 1rem;
    }
    
    .chat-messages {
        padding: 1rem;
    }
    
    .message {
        max-width: 90%;
        padding: 10px 14px;
        font-size: 0.9rem;
    }
    
    .chat-input {
        padding: 0.8rem;
    }
    
    .input-field {
        padding: 10px 15px;
        font-size: 0.9rem;
    }
    
    .voice-btn {
        width: 40px;
        height: 40px;
    }
}