/* ============================================
   高草堂中医医学研究院 - 主样式
   布局与组件样式
   ============================================ */

/* ---------- 首页轮播背景 ---------- */
.slide.slide-1 { background-image: linear-gradient(rgba(30,10,5,0.55), rgba(30,10,5,0.55)), url('../images/banner-1.png'); }
.slide.slide-2 { background-image: linear-gradient(rgba(30,10,5,0.55), rgba(30,10,5,0.55)), url('../images/banner-2.png'); }
.slide.slide-3 { background-image: linear-gradient(rgba(30,10,5,0.55), rgba(30,10,5,0.55)), url('../images/banner-3.png'); }

/* ---------- 首页简介摘要 ---------- */
.intro-wrap { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
.intro-img {
    border: 6px solid #FFFDF6; outline: 1px solid var(--gold);
    box-shadow: 0 6px 20px var(--shadow);
    height: 360px; overflow: hidden; position: relative;
    background: linear-gradient(160deg, #F5EED8, #DCCFA4);
}
.intro-img .img-fallback {
    position: absolute; inset: 0;
    display: flex; align-items: center; justify-content: center;
    font-size: 110px; color: var(--cinnabar); opacity: 0.85;
}
.intro-text h3 { font-size: 26px; color: var(--cinnabar); letter-spacing: 4px; margin-bottom: 14px; }
.intro-text p { font-size: 14.5px; color: var(--ink-light); text-indent: 2em; margin-bottom: 12px; line-height: 2; }
.intro-text .more { margin-top: 8px; }

/* ---------- 数据统计 ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.stat-item { text-align: center; padding: 24px 10px; }
.stat-num { font-size: 40px; color: var(--cinnabar); font-weight: 700; font-family: "Kaiti SC", serif; }
.stat-num em { font-style: normal; font-size: 22px; }
.stat-label { color: var(--ink-light); letter-spacing: 3px; margin-top: 4px; font-size: 14px; }

/* ---------- 三大名医 ---------- */
.doctors-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
@media (max-width: 900px) { .doctors-grid { grid-template-columns: 1fr; } .intro-wrap { grid-template-columns: 1fr; } }

/* ---------- 首页新闻与公告 ---------- */
.home-news { display: grid; grid-template-columns: 2fr 1fr; gap: 30px; }
@media (max-width: 900px) { .home-news { grid-template-columns: 1fr; } }

/* ---------- 产品卡片 ---------- */
.products-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
@media (max-width: 768px) {
    .products-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
    .products-grid { grid-template-columns: 1fr; }
}
.product-card .product-img {
    height: 210px; background: linear-gradient(160deg, #F8F2DF, #EDE2C0);
    display: flex; align-items: center; justify-content: center;
    font-size: 72px; color: var(--cinnabar); position: relative;
}
.product-card .product-type {
    position: absolute; top: 12px; left: 12px;
    background: var(--cinnabar); color: var(--gold-light);
    font-size: 12px; padding: 2px 12px; border-radius: 2px; letter-spacing: 2px;
}
.product-price { color: var(--cinnabar); font-size: 20px; font-weight: 700; }
.product-price small { font-size: 13px; color: var(--ink-light); font-weight: 400; }
.product-actions { display: flex; gap: 10px; margin-top: 12px; }
.product-actions .btn { flex: 1; text-align: center; padding: 8px 10px; font-size: 14px; }

/* ---------- 病种卡片 ---------- */
.diseases-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 26px; }
.disease-card { display: flex; gap: 18px; padding: 22px; }
.disease-icon {
    flex-shrink: 0; width: 74px; height: 74px;
    border-radius: 50%; background: var(--cinnabar); color: var(--gold-light);
    display: flex; align-items: center; justify-content: center; font-size: 34px;
}
.disease-card h3 { font-size: 20px; color: var(--cinnabar); letter-spacing: 2px; margin-bottom: 6px; }
.disease-card p { font-size: 13.5px; color: var(--ink-light); }
.disease-tags { margin-top: 8px; }
.disease-tags .badge { margin-right: 6px; }

/* ---------- 学术研究板块 ---------- */
.research-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }
.research-card { text-align: center; }
.research-avatar {
    width: 260px; height: 260px; overflow: hidden; position: relative;
    background: #EFE7CE; margin: 0 auto 16px;
    border-radius: 8px;
}
.research-avatar img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s; }
.research-card:hover .research-avatar img { transform: scale(1.06); }
.research-avatar .avatar-fallback {
    width: 100%; height: 100%;
    display: flex; align-items: center; justify-content: center;
    font-size: 90px; color: var(--cinnabar); background: linear-gradient(160deg, #F5EED8, #E8DCBA);
}
.research-info { padding: 0 10px; }
.research-info h3 { font-size: 20px; color: var(--cinnabar); letter-spacing: 2px; margin-bottom: 6px; }
.research-info .title-tag { display: inline-block; background: var(--gold); color: var(--cinnabar); padding: 2px 12px; border-radius: 2px; font-size: 13px; margin-bottom: 8px; }
.research-info p { font-size: 13.5px; color: var(--ink-light); margin-bottom: 10px; }
.research-item { padding: 26px 22px; text-align: center; }
.research-item .r-icon {
    width: 64px; height: 64px; margin: 0 auto 14px;
    border: 1px solid var(--gold); border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 28px; color: var(--cinnabar); background: #FAF3E0;
}
.research-item h3 { color: var(--cinnabar); font-size: 19px; letter-spacing: 3px; margin-bottom: 8px; }
.research-item p { font-size: 13.5px; color: var(--ink-light); }

/* ---------- 预约步骤 ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin: 30px 0; }
.step-item { text-align: center; position: relative; padding: 20px 10px; }
.step-num {
    width: 52px; height: 52px; margin: 0 auto 12px;
    border-radius: 50%; background: var(--cinnabar); color: var(--gold-light);
    font-size: 24px; font-weight: 700; line-height: 52px;
    font-family: "Kaiti SC", serif;
}
.step-item h4 { font-size: 16px; letter-spacing: 2px; margin-bottom: 4px; }
.step-item p { font-size: 12.5px; color: var(--ink-light); }
@media (max-width: 800px) { .steps { grid-template-columns: 1fr 1fr; } }

/* ---------- 联系我们 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.contact-info-item { display: flex; gap: 14px; padding: 14px 0; border-bottom: 1px dashed #D8CBA4; }
.contact-info-item .ci-icon {
    width: 44px; height: 44px; flex-shrink: 0;
    background: var(--cinnabar); color: var(--gold-light);
    border-radius: 50%; display: flex; align-items: center; justify-content: center;
    font-size: 20px;
}
.contact-info-item h4 { font-size: 15px; letter-spacing: 2px; }
.contact-info-item p { font-size: 13.5px; color: var(--ink-light); }
.map-box {
    border: 2px solid var(--border-color); border-radius: 4px;
    height: 300px; background: #EFE7CE; position: relative; overflow: hidden;
    display: flex; align-items: center; justify-content: center;
}
.map-box .map-fallback { text-align: center; color: var(--ink-light); font-size: 14px; }
.map-box .map-fallback .pin { font-size: 44px; color: var(--cinnabar); margin-bottom: 6px; }
@media (max-width: 900px) { .contact-grid { grid-template-columns: 1fr; } }

/* ---------- 详情页 ---------- */
.detail-head { display: flex; gap: 30px; align-items: flex-start; margin-bottom: 30px; }
.detail-avatar {
    flex-shrink: 0; width: 280px; height: 340px;
    border: 5px solid #FFFDF6; outline: 1px solid var(--gold);
    background: linear-gradient(160deg, #F5EED8, #E0D3A8);
    display: flex; align-items: center; justify-content: center;
    font-size: 120px; color: var(--cinnabar);
    box-shadow: 0 6px 18px var(--shadow);
}
.detail-info h2 { font-size: 30px; color: var(--cinnabar); letter-spacing: 5px; margin-bottom: 6px; }
.detail-info .sub { color: var(--gold); letter-spacing: 3px; font-size: 14px; margin-bottom: 14px; }
.detail-info table { width: 100%; border-collapse: collapse; font-size: 14px; margin-top: 10px; }
.detail-info table td { padding: 8px 6px; border-bottom: 1px dashed #E0D5B2; }
.detail-info table td:first-child { color: var(--cinnabar); font-weight: 700; width: 110px; }
@media (max-width: 700px) { .detail-head { flex-direction: column; } .detail-avatar { width: 100%; height: 260px; } }

/* ---------- 购物车 ---------- */
.cart-table .qty-input { width: 60px; text-align: center; padding: 5px; border: 1px solid #C9BA8F; border-radius: 3px; }
.cart-summary { margin-top: 24px; text-align: right; }
.cart-summary .total { font-size: 18px; margin-bottom: 14px; }
.cart-summary .total strong { color: var(--cinnabar); font-size: 26px; }
.empty-tip { text-align: center; padding: 60px 20px; color: var(--ink-light); }
.empty-tip .icon { font-size: 64px; color: #C9BA8F; margin-bottom: 12px; }

/* ---------- 用户中心 ---------- */
.user-layout { display: grid; grid-template-columns: 240px 1fr; gap: 24px; align-items: start; }
.user-sidebar { background: #FFFDF6; border: 1px solid #E8DDBB; border-radius: 4px; overflow: hidden; }
.user-sidebar .user-head { background: var(--cinnabar); color: var(--gold-light); text-align: center; padding: 24px 10px; }
.user-sidebar .user-head .avatar { font-size: 46px; }
.user-sidebar .user-head h4 { letter-spacing: 2px; margin-top: 6px; }
.user-sidebar ul li a {
    display: block; padding: 12px 20px; color: var(--ink);
    border-bottom: 1px dashed #E5D9B8; font-size: 14.5px; letter-spacing: 2px;
}
.user-sidebar ul li a:hover, .user-sidebar ul li.active a {
    background: #F5EED8; color: var(--cinnabar); padding-left: 26px;
}
.user-content { background: #FFFDF6; border: 1px solid #E8DDBB; border-radius: 4px; padding: 24px; min-height: 420px; }
@media (max-width: 800px) { .user-layout { grid-template-columns: 1fr; } }

/* ---------- 分页 ---------- */
.pagination { display: flex; justify-content: center; gap: 8px; margin-top: 28px; }
.pagination a, .pagination span {
    padding: 7px 14px; border: 1px solid #C9BA8F; border-radius: 3px;
    color: var(--ink); font-size: 14px; background: #FFFDF6;
}
.pagination a:hover { background: var(--cinnabar); color: #fff; border-color: var(--cinnabar); }
.pagination .current { background: var(--cinnabar); color: #fff; border-color: var(--cinnabar); }

/* ---------- 浮动工具 ---------- */
.back-top {
    position: fixed; right: 24px; bottom: 40px;
    width: 46px; height: 46px; border-radius: 50%;
    background: var(--cinnabar); color: var(--gold-light);
    border: 1px solid var(--gold); font-size: 20px;
    cursor: pointer; display: none; z-index: 999;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}
.back-top:hover { background: #A50D0D; }

/* ---------- 搜索框 ---------- */
.search-box { display: flex; }
.search-box input {
    padding: 8px 14px; border: 1px solid var(--border-color);
    border-right: none; border-radius: 3px 0 0 3px; background: #FFFDF6;
    font-family: inherit; width: 180px; font-size: 14px;
}
.search-box button {
    padding: 8px 16px; border: 1px solid var(--border-color); border-radius: 0 3px 3px 0;
    background: var(--cinnabar); color: #fff; cursor: pointer; font-size: 14px;
}

/* ---------- 标签页 ---------- */
.tabs { display: flex; border-bottom: 2px solid var(--gold); margin-bottom: 24px; }
.tabs .tab {
    padding: 10px 26px; cursor: pointer; font-size: 15px;
    letter-spacing: 2px; color: var(--ink-light);
    border: 1px solid transparent; border-bottom: none; border-radius: 4px 4px 0 0;
    margin-bottom: -2px;
}
.tabs .tab.active { background: #FFFDF6; border-color: var(--gold); color: var(--cinnabar); font-weight: 700; }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ---------- 支付方式 ---------- */
.pay-methods { display: flex; gap: 16px; margin: 16px 0; }
.pay-method {
    flex: 1; text-align: center; padding: 18px 10px;
    border: 1px solid #C9BA8F; border-radius: 4px; cursor: pointer; background: #FAF5E6;
}
.pay-method .pm-icon { font-size: 30px; margin-bottom: 6px; }
.pay-method.selected { border-color: var(--cinnabar); background: rgba(139,0,0,0.06); box-shadow: 0 0 0 2px rgba(139,0,0,0.15); }
.pay-method h5 { letter-spacing: 2px; }

/* ---------- 打印/通用工具 ---------- */
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-10 { margin-top: 10px; } .mt-20 { margin-top: 20px; } .mt-30 { margin-top: 30px; }
.mb-10 { margin-bottom: 10px; } .mb-20 { margin-bottom: 20px; } .mb-30 { margin-bottom: 30px; }
.hidden { display: none !important; }

/* ============================================
   响应式适配 - 电脑 / 平板 / 手机
   ============================================ */

/* ---------- 平板 ≤ 992px ---------- */
@media (max-width: 992px) {
    .header-inner { padding: 10px 16px; }
    .logo-text h1 { font-size: 18px; letter-spacing: 3px; }
    .logo-text p { font-size: 14px; }
    .nav > li > a { padding: 14px 10px; font-size: 14px; letter-spacing: 1px; }
    .slider { height: 340px; }
    .slide-content h2 { font-size: 34px; letter-spacing: 6px; }
    .slide-content p { font-size: 15px; }
    .slide-content .slide-btn { padding: 8px 24px; font-size: 14px; }
    .products-grid { grid-template-columns: repeat(2, 1fr); }
    .research-avatar { width: 200px; height: 200px; }
    .stats { grid-template-columns: repeat(2, 1fr); }
    .detail-avatar { width: 220px; height: 280px; }
    .footer-grid { grid-template-columns: repeat(2, 1fr); }
    .section-title .cn { font-size: 28px; letter-spacing: 5px; }
    .page-banner { padding: 50px 16px; }
    .page-banner h2 { font-size: 28px; }
}

/* ---------- 手机 ≤ 768px ---------- */
@media (max-width: 768px) {
    .topbar .container { justify-content: center; gap: 6px; font-size: 12px; }
    .topbar span { margin: 0 4px; }
    .header-inner { flex-wrap: wrap; }
    .nav-toggle { display: block; }
    .nav {
        display: none;
        position: absolute; top: 100%; left: 0; right: 0;
        background: #FFFDF6; flex-direction: column;
        border-top: 2px solid var(--gold);
        box-shadow: 0 6px 16px var(--shadow);
        z-index: 1001;
    }
    .nav.open { display: flex; }
    .nav > li { width: 100%; text-align: center; }
    .nav > li > a { padding: 14px; border-bottom: 1px dashed #E5D9B8; }
    .nav > li > a::after { display: none; }
    .dropdown-menu {
        position: static; box-shadow: none; border: none;
        border-top: 1px dashed #E5D9B8;
    }
    .dropdown-menu a { padding: 10px 30px; font-size: 13px; }
    .slider { height: 240px; }
    .slide-content h2 { font-size: 24px; letter-spacing: 4px; }
    .slide-content p { font-size: 13px; letter-spacing: 2px; }
    .slide-content .slide-btn { margin-top: 14px; padding: 7px 20px; font-size: 13px; }
    .slider-arrow { width: 34px; height: 34px; font-size: 16px; }
    .slider-arrow.prev { left: 8px; }
    .slider-arrow.next { right: 8px; }
    .products-grid { grid-template-columns: 1fr; }
    .product-card .product-img { height: 180px; }
    .research-grid { grid-template-columns: 1fr; }
    .research-avatar { width: 160px; height: 160px; }
    .research-avatar img { width: 100%; height: 100%; }
    .diseases-grid { grid-template-columns: 1fr; }
    .disease-card { flex-direction: column; align-items: center; text-align: center; }
    .steps { grid-template-columns: 1fr 1fr; }
    .step-item { padding: 14px 6px; }
    .detail-head { flex-direction: column; align-items: center; }
    .detail-avatar { width: 100%; max-width: 280px; height: 220px; }
    .detail-info table td:first-child { width: 90px; }
    .contact-grid { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 24px; }
    .footer-bottom { font-size: 12px; }
    .section { padding: 40px 0; }
    .section-title .cn { font-size: 24px; letter-spacing: 4px; }
    .section-title .en { font-size: 11px; }
    .page-banner { padding: 36px 12px; }
    .page-banner h2 { font-size: 24px; letter-spacing: 3px; }
    .page-banner p { font-size: 13px; }
    .panel { padding: 16px; }
    .form-row { grid-template-columns: 1fr; }
    .tabs { flex-wrap: wrap; }
    .tabs .tab { padding: 8px 16px; font-size: 13px; }
    .user-layout { grid-template-columns: 1fr; }
    .user-sidebar { display: flex; overflow-x: auto; }
    .user-sidebar ul { display: flex; }
    .user-sidebar ul li a { border-bottom: none; border-right: 1px dashed #E5D9B8; white-space: nowrap; }
    .stats { grid-template-columns: repeat(2, 1fr); gap: 10px; }
    .stat-item { padding: 14px 6px; }
    .stat-num { font-size: 28px; }
    .intro-wrap { grid-template-columns: 1fr; }
    .intro-img { height: 220px; }
    .home-news { grid-template-columns: 1fr; }
    .pay-methods { flex-direction: column; }
    .cart-table table { font-size: 13px; }
    .cart-table .qty-input { width: 48px; }
}

/* ---------- 小手机 ≤ 480px ---------- */
@media (max-width: 480px) {
    .container { padding: 0 12px; }
    .logo-img { width: 48px; height: 48px; font-size: 22px; }
    .logo-text h1 { font-size: 16px; letter-spacing: 2px; }
    .logo-text p { font-size: 12px; }
    .slider { height: 180px; }
    .slide-content h2 { font-size: 18px; letter-spacing: 2px; }
    .slide-content p { font-size: 11px; }
    .slide-content .slide-btn { padding: 5px 14px; font-size: 12px; }
    .slider-dots span { width: 8px; height: 8px; }
    .products-grid { grid-template-columns: 1fr; gap: 16px; }
    .product-card .product-img { height: 150px; }
    .product-actions { flex-direction: column; }
    .product-actions .btn { font-size: 13px; padding: 7px 10px; }
    .research-avatar { width: 120px; height: 120px; }
    .research-info h3 { font-size: 17px; }
    .steps { grid-template-columns: 1fr; }
    .step-num { width: 40px; height: 40px; font-size: 18px; line-height: 40px; }
    .detail-avatar { height: 180px; }
    .detail-info h2 { font-size: 22px; letter-spacing: 2px; }
    .stats { grid-template-columns: 1fr 1fr; }
    .stat-num { font-size: 24px; }
    .stat-label { font-size: 12px; letter-spacing: 1px; }
    .section-title .cn { font-size: 20px; letter-spacing: 3px; }
    .page-banner h2 { font-size: 20px; }
    .tabs .tab { padding: 6px 12px; font-size: 12px; }
    .pagination a, .pagination span { padding: 5px 10px; font-size: 12px; }
    .topbar { font-size: 11px; padding: 4px 0; }
    .topbar span { margin: 0 3px; }
    .footer-grid { grid-template-columns: 1fr; }
    .admin-layout { flex-direction: column; }
    .admin-sidebar { width: 100%; }
}

/* ---------- 大屏 ≥ 1200px ---------- */
@media (min-width: 1200px) {
    .container { max-width: 1200px; }
}

/* ---------- 移动端导航切换脚本依赖 ---------- */
/* 汉堡按钮在 ≤992px 显示（与 chinese-style.css 一致，避免被覆盖） */
@media (max-width: 992px) {
    .nav-toggle { display: block; }
    .nav {
        display: none; position: absolute; top: 100%; left: 0; right: 0;
        background: #FFFDF6; flex-direction: column;
        border-top: 2px solid var(--gold);
        box-shadow: 0 6px 16px var(--shadow);
        z-index: 1001;
    }
    .nav.open { display: flex; }
    .nav > li { width: 100%; text-align: center; }
    .nav > li > a { padding: 14px; border-bottom: 1px dashed #E5D9B8; }
    .nav > li > a::after { display: none; }
    .dropdown-menu {
        position: static; box-shadow: none; border: none;
        border-top: 1px dashed #E5D9B8;
    }
    .dropdown-menu a { padding: 10px 30px; font-size: 13px; }
}