/* ==========================================================================
   🌱 PLANT AI - 欧美及全球主流花卉 Hub 专属现代 Apple-Style 样式系统
   设计理念: 极致大留白、超柔和软阴影、莫兰迪色系、毛玻璃微渐变、苹果规格网格
   ========================================================================== */

/* 1. 设计变量与现代设计标记 (Design Tokens) */
:root {
    /* 莫兰迪自然色系 (Morandi Natural Palette) */
    --color-primary: #3d684d;        /* 沉静莫兰迪深绿 */
    --color-primary-rgb: 61, 104, 77;
    --color-accent: #5c8d70;         /* 莫兰迪淡雅绿 */
    --color-accent-soft: #f2f7f4;    /* 极其柔和的淡绿底色 */
    --color-warning: #d97706;        /* 适度的橙色警告(毒性) */
    
    /* 苹果官方字色与经典银灰 (Apple Typography & Surfaces) */
    --color-bg-base: #fbfbfd;        /* 苹果经典灰白底色 */
    --color-surface: #ffffff;
    --color-surface-subtle: #f5f5f7; /* 苹果次级表面灰 */
    --color-text-primary: #1d1d1f;   /* 苹果黑 (极高易读性) */
    --color-text-secondary: #6e6e73; /* 苹果次级灰 */
    --color-text-tertiary: #86868b;
    --color-border: rgba(0, 0, 0, 0.08);
    
    /* 高级物理阴影与圆角 (Apple Soft Shadows & Radii) */
    --shadow-soft: 0 8px 30px rgba(0, 0, 0, 0.03);
    --shadow-medium: 0 12px 40px rgba(0, 0, 0, 0.06);
    --shadow-glass: 0 8px 32px 0 rgba(31, 38, 135, 0.03);
    --radius-large: 24px;
    --radius-medium: 16px;
    --radius-small: 12px;
    
    /* 字体规范 */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

/* 2. 重置与基准样式配置 (Silo Scoped Reset) */
.hub-body {
    background-color: var(--color-bg-base);
    color: var(--color-text-primary);
    font-family: var(--font-sans);
    margin: 0;
    padding: 0;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

.hub-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 3. 磨砂毛玻璃顶栏 (Glassmorphism Nav) */
.hub-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.72);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    transition: background 0.3s ease;
}

.hub-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 72px;
}

.hub-nav .logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    font-weight: 700;
    font-size: 20px;
    color: var(--color-text-primary);
}

.hub-nav .logo img {
    height: 36px;
    width: auto;
}

.hub-nav-links {
    display: flex;
    gap: 32px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.hub-nav-links a {
    text-decoration: none;
    color: var(--color-text-secondary);
    font-weight: 500;
    font-size: 15px;
    transition: color 0.2s ease;
}

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

/* 4. Apple-Style 标题与文本控制 (Typography) */
.hub-title-h1 {
    font-size: clamp(2.5rem, 1.5rem + 4vw, 4rem);
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.1;
    color: var(--color-text-primary);
    text-wrap: balance;
    margin-bottom: 16px;
}

.hub-title-h2 {
    font-size: clamp(1.8rem, 1.2rem + 2.5vw, 2.5rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--color-text-primary);
    text-wrap: balance;
    margin-bottom: 24px;
}

.hub-lead {
    font-size: clamp(1.1rem, 1rem + 0.5vw, 1.3rem);
    color: var(--color-text-secondary);
    font-weight: 400;
    line-height: 1.6;
    text-wrap: pretty;
    margin-bottom: 40px;
}

/* 5. 详情页排版结构 (Detail Page Hero Layout) */
.hub-hero-section {
    padding: 60px 0;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 60px;
    align-items: center;
}

.hub-hero-visual {
    position: relative;
    border-radius: var(--radius-large);
    overflow: hidden;
    aspect-ratio: 1 / 1;
    box-shadow: var(--shadow-medium);
}

.hub-hero-visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s cubic-bezier(0.25, 1, 0.5, 1);
}

.hub-hero-visual:hover img {
    transform: scale(1.04);
}

.hub-hero-badge {
    position: absolute;
    top: 24px;
    left: 24px;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    padding: 8px 16px;
    border-radius: 30px;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--color-primary);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.hub-hero-content {
    display: flex;
    flex-direction: column;
}

.hub-latin-name {
    font-size: 18px;
    font-style: italic;
    color: var(--color-primary);
    font-weight: 500;
    margin-bottom: 12px;
}

/* 6. 苹果规格参数网格 (Spec Grids) */
.hub-spec-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin: 32px 0;
}

.hub-spec-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-medium);
    padding: 20px;
    display: flex;
    align-items: flex-start;
    gap: 16px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    box-shadow: var(--shadow-soft);
}

.hub-spec-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.hub-spec-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: #ffffff;
    border: 1px solid rgba(61, 104, 77, 0.08); /* 微微带绿调的优雅莫兰迪灰色边框 */
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03); /* 轻微苹果风投影 */
    flex-shrink: 0;
    transition: all 0.25s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.hub-spec-icon-img {
    width: 28px;
    height: 28px;
    object-fit: contain;
    transition: transform 0.25s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.hub-spec-card:hover .hub-spec-icon {
    border-color: rgba(61, 104, 77, 0.2);
    transform: scale(1.05);
}

.hub-spec-card:hover .hub-spec-icon-img {
    transform: scale(1.05);
}

.hub-spec-details {
    display: flex;
    flex-direction: column;
}

.hub-spec-label {
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-tertiary);
    margin-bottom: 4px;
    font-weight: 600;
}

.hub-spec-value {
    font-size: 15px;
    font-weight: 600;
    color: var(--color-text-primary);
}

/* 毒性特殊卡片 */
.hub-spec-card.toxic-warning {
    grid-column: span 2;
    border-left: 4px solid var(--color-warning);
}

.hub-spec-card.toxic-warning .hub-spec-icon {
    background: #ffffff;
    border-color: rgba(217, 119, 6, 0.15); /* 警示卡片边框带有微黄色调，精致匹配 */
}

/* 7. 病害诊断条目与健康卡片 */
.hub-section-block {
    padding: 60px 0;
    border-top: 1px solid var(--color-border);
}

.hub-disease-section {
    background-color: var(--color-surface);
    border-radius: var(--radius-large);
    padding: 40px;
    box-shadow: var(--shadow-soft);
    border: 1px solid var(--color-border);
}

.hub-disease-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    margin-top: 32px;
}

.hub-disease-card {
    background: var(--color-bg-base);
    border-radius: var(--radius-medium);
    padding: 24px;
    border: 1px solid var(--color-border);
}

.hub-disease-name {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.hub-disease-name::before {
    content: "⚠️";
    font-size: 16px;
}

.hub-disease-desc {
    font-size: 14px;
    color: var(--color-text-secondary);
    margin-bottom: 16px;
}

.hub-disease-treatment {
    font-size: 14px;
    color: var(--color-primary);
    background: var(--color-accent-soft);
    padding: 12px 16px;
    border-radius: var(--radius-small);
    font-weight: 500;
    border-left: 3px solid var(--color-primary);
}

/* 8. AI 诊断悬浮呼吸卡片 (Breathing Float Card) */
.hub-diagnose-banner {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    border-radius: var(--radius-large);
    padding: 40px;
    color: #ffffff;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: var(--shadow-medium);
    margin: 40px 0;
    position: relative;
    overflow: hidden;
}

.hub-diagnose-banner::after {
    content: "";
    position: absolute;
    top: -50%;
    right: -20%;
    width: 300px;
    height: 300px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 50%;
    pointer-events: none;
}

.hub-diagnose-text h3 {
    font-size: 24px;
    font-weight: 700;
    margin: 0 0 8px 0;
    letter-spacing: -0.01em;
}

.hub-diagnose-text p {
    font-size: 15px;
    margin: 0;
    opacity: 0.9;
}

.hub-btn-white {
    background: #ffffff;
    color: var(--color-primary);
    padding: 14px 28px;
    border-radius: 30px;
    font-weight: 600;
    text-decoration: none;
    font-size: 15px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.hub-btn-white:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}

/* 9. 折叠高品质常见问题 (FAQ Grid & Accordion) */
.hub-faq-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-top: 32px;
}

.hub-faq-item {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-medium);
    padding: 24px;
    box-shadow: var(--shadow-soft);
    transition: transform 0.2s ease;
}

.hub-faq-question {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 0 0 12px 0;
    display: flex;
    align-items: center;
    gap: 12px;
}

.hub-faq-question::before {
    content: "Q";
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: var(--color-accent-soft);
    color: var(--color-primary);
    border-radius: 50%;
    font-size: 12px;
    font-weight: 700;
}

.hub-faq-answer {
    font-size: 14.5px;
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin: 0;
}

/* 10. Hub 首页过滤检索网格系统 (Hub Portal System) */
.hub-search-container {
    text-align: center;
    padding: 60px 0 40px;
}

.hub-search-wrapper {
    position: relative;
    max-width: 600px;
    margin: 32px auto 0;
}

.hub-search-input {
    width: 100%;
    box-sizing: border-box;
    padding: 16px 24px;
    padding-left: 52px;
    border-radius: 30px;
    border: 1px solid var(--color-border);
    background: var(--color-surface);
    box-shadow: var(--shadow-soft);
    font-size: 16px;
    font-family: var(--font-sans);
    transition: all 0.3s cubic-bezier(0.25, 1, 0.5, 1);
}

.hub-search-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px rgba(61, 104, 77, 0.1), var(--shadow-medium);
}

.hub-search-icon {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 18px;
    color: var(--color-text-tertiary);
}

/* 过滤标签 */
.hub-filter-tabs {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
    margin: 24px 0 40px;
}

.hub-tab-btn {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    padding: 10px 20px;
    border-radius: 30px;
    font-weight: 500;
    font-size: 14px;
    cursor: pointer;
    color: var(--color-text-secondary);
    transition: all 0.2s ease;
    box-shadow: var(--shadow-soft);
}

.hub-tab-btn:hover {
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.hub-tab-btn.active {
    background: var(--color-primary);
    color: #ffffff;
    border-color: var(--color-primary);
    box-shadow: 0 4px 12px rgba(61, 104, 77, 0.2);
}

/* 花卉列表卡片网格 */
.hub-flowers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 30px;
    padding: 20px 0 80px;
    content-visibility: auto;
    contain-intrinsic-size: auto 800px;
}

.hub-flower-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-large);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    transition: transform 0.3s cubic-bezier(0.25, 1, 0.5, 1), box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
}

.hub-flower-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-medium);
}

.hub-card-image {
    aspect-ratio: 4 / 3;
    overflow: hidden;
    position: relative;
    background: var(--color-surface-subtle);
}

.hub-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.hub-flower-card:hover .hub-card-image img {
    transform: scale(1.05);
}

.hub-card-content {
    padding: 20px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.hub-card-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 0 0 4px 0;
}

.hub-card-latin {
    font-size: 13px;
    font-style: italic;
    color: var(--color-primary);
    margin: 0 0 12px 0;
    font-weight: 500;
}

.hub-card-tags {
    display: flex;
    gap: 6px;
    margin-top: auto;
}

.hub-card-tag {
    font-size: 11px;
    background: var(--color-surface-subtle);
    padding: 4px 8px;
    border-radius: 6px;
    color: var(--color-text-secondary);
    font-weight: 500;
}

/* 11. 响应式布局与移动端防折行适配 (Media Queries) */
@media (max-width: 992px) {
    .hub-hero-section {
        grid-template-columns: 1fr;
        gap: 0; /* Use individual margins for refined spacing */
    }

    .hub-hero-content {
        display: contents; /* Flattens children into the grid parent for dynamic order */
    }

    .hub-latin-name {
        order: 1;
        margin-bottom: 8px;
    }

    .hub-title-h1 {
        order: 2;
        font-size: 32px;
        margin-bottom: 20px;
        line-height: 1.2;
    }

    .hub-hero-visual {
        order: 3;
        aspect-ratio: 16 / 10; /* Sleek landscape aspect ratio for mobile view */
        margin-bottom: 24px;
        width: 100%;
    }

    .hub-lead {
        order: 4;
        font-size: 15.5px;
        margin-bottom: 28px;
        line-height: 1.6;
    }

    .hub-spec-grid {
        order: 5;
    }
}

@media (max-width: 768px) {
    .hub-container {
        padding: 0 20px;
    }

    .hub-hero-section {
        padding: 30px 0;
    }

    .hub-nav-links {
        display: none; /* 在移动端使用汉堡菜单或轻量导航 */
    }
    
    .hub-spec-grid {
        grid-template-columns: 1fr;
    }

    .hub-spec-card.toxic-warning {
        grid-column: span 1;
    }

    .hub-disease-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .hub-disease-section {
        padding: 24px;
    }

    .hub-diagnose-banner {
        flex-direction: column;
        text-align: center;
        gap: 24px;
        padding: 30px 20px;
    }
}

@media (max-width: 480px) {
    .hub-title-h1 {
        font-size: 32px;
    }

    .hub-title-h2 {
        font-size: 24px;
    }

    .hub-spec-card {
        padding: 16px;
    }
}

/* ==========================================================================
   💎 11维植物照料精美磨砂手风琴 (Care Guide Accordion)
   ========================================================================== */
.hub-care-section {
    padding: 60px 0;
    border-top: 1px solid var(--color-border);
}

.hub-care-accordion {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 32px;
}

.hub-care-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-medium);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.hub-care-card:hover {
    box-shadow: var(--shadow-medium);
    border-color: rgba(61, 104, 77, 0.2);
}

.hub-care-header {
    width: 100%;
    box-sizing: border-box;
    background: none;
    border: none;
    padding: 20px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    text-align: left;
    outline: none;
}

.hub-care-title-wrapper {
    display: flex;
    align-items: center;
    gap: 14px;
}

.hub-care-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
    background: transparent;
    color: var(--color-primary);
}

.hub-care-svg {
    width: 20px;
    height: 20px;
    color: var(--color-primary);
    display: block;
    transition: transform 0.2s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.hub-care-card:hover .hub-care-svg {
    transform: scale(1.15) rotate(3deg);
}


.hub-care-label {
    font-size: 16px;
    font-weight: 700;
    color: var(--color-text-primary);
}

/* 💎 现代加减号极简 SVG 开关 */
.hub-care-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    color: var(--color-text-tertiary);
    transition: color 0.3s ease;
}

.hub-care-toggle-svg {
    width: 20px;
    height: 20px;
    display: block;
}

.hub-toggle-circle {
    stroke: var(--color-border);
    fill: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.hub-toggle-line-h,
.hub-toggle-line-v {
    stroke: var(--color-text-tertiary);
    stroke-linecap: round;
    transform-origin: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* 折叠展开动画逻辑 */
.hub-care-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    background: transparent; /* 去除额外背景，保持卡片底色一致 */
}

.hub-care-inner {
    padding: 0 24px 24px 62px; /* 精准对齐标签 */
    font-size: 14.5px;
    line-height: 1.6;
    color: var(--color-text-secondary);
}

/* 激活状态 */
.hub-care-card.active {
    border-color: var(--color-primary);
}

.hub-care-card.active .hub-care-content {
    max-height: 500px; /* 足够容纳细节说明 */
}

.hub-care-card.active .hub-care-toggle {
    color: var(--color-primary);
}

.hub-care-card.active .hub-toggle-circle {
    fill: var(--color-primary);
    stroke: var(--color-primary);
}

.hub-care-card.active .hub-toggle-line-h {
    stroke: #ffffff;
}

.hub-care-card.active .hub-toggle-line-v {
    opacity: 0;
    transform: rotate(90deg);
    stroke: #ffffff;
}

@media (max-width: 768px) {
    .hub-care-inner {
        padding: 0 20px 20px 20px; /* 移动端取消大左边距以利用空间 */
    }
}

/* ==========================================================================
   💎 极致精致莫兰迪面包屑导航 (Morandi Breadcrumbs)
   ========================================================================== */
.hub-breadcrumbs {
    display: flex;
    justify-content: flex-start;
    align-items: center;
    height: auto;
    flex-wrap: wrap;
    gap: 8px;
    padding: 0;
    margin-top: 20px;
    margin-bottom: 24px;
    font-size: 13.5px;
    font-weight: 500;
}

.hub-breadcrumbs a {
    color: var(--color-text-tertiary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.hub-breadcrumbs a:hover {
    color: var(--color-primary);
}

.hub-breadcrumb-separator {
    color: var(--color-text-tertiary);
    opacity: 0.5;
    font-size: 12px;
    user-select: none;
}

.hub-breadcrumb-current {
    color: var(--color-text-secondary);
    font-weight: 600;
}

@media (max-width: 992px) {
    .hub-breadcrumbs {
        display: none !important;
    }
}