/* ==========================================================================
   怡生堂双非遗疗法门户网站 - 样式表 (style.css)
   设计风格：现代中式国潮医养风 (Modern Chinese Medical Aesthetic)
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. 基础重置与设计系统变量
   -------------------------------------------------------------------------- */
:root {
    /* 核心调色板 */
    --color-primary: #0A5F38;       /* 翡翠绿 (主色) */
    --color-primary-dark: #064025;  /* 深翡翠绿 */
    --color-primary-light: #EBF5F0; /* 极浅绿 (背景) */
    --color-accent: #C5A880;        /* 暖金 (辅助色) */
    --color-accent-dark: #A6875C;   /* 深金色 */
    --color-accent-light: #F4EFEB;  /* 浅金色 (背景) */
    --color-bg-cream: #FDFBF7;      /* 丝绸白 (主背景) */
    --color-bg-white: #FFFFFF;      /* 纯白 */
    --color-text-dark: #222824;     /* 深炭黑 */
    --color-text-muted: #5C6560;    /* 灰绿 */
    --color-border: #EADEC9;        /* 金色细线 */
    --color-danger: #C0392B;        /* 朱砂红 (报错/警示) */

    /* 字体 */
    --font-heading: 'Noto Serif SC', 'Source Han Serif CN', Georgia, serif;
    --font-body: 'Montserrat', 'Noto Sans SC', 'Helvetica Neue', Arial, sans-serif;

    /* 阴影与过渡 */
    --shadow-sm: 0 4px 6px rgba(10, 95, 56, 0.05);
    --shadow-md: 0 10px 30px rgba(10, 95, 56, 0.08);
    --shadow-lg: 0 20px 40px rgba(10, 95, 56, 0.12);
    --transition-smooth: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    --border-radius-sm: 6px;
    --border-radius-md: 12px;
    --border-radius-lg: 24px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background-color: var(--color-bg-cream);
    color: var(--color-text-dark);
    font-family: var(--font-body);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-smooth);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* --------------------------------------------------------------------------
   2. 通用布局与组件 (Containers, Buttons, Section Headers)
   -------------------------------------------------------------------------- */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.section {
    padding: 100px 0;
    position: relative;
}

.alternate-bg {
    background-color: var(--color-accent-light);
}

/* 按钮样式 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 28px;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: var(--transition-smooth);
    border: none;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-bg-cream);
    border: 1px solid var(--color-primary);
}

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    border-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(10, 95, 56, 0.2);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-primary);
    border: 1px solid var(--color-primary);
    margin-left: 16px;
}

.btn-secondary:hover {
    background-color: var(--color-primary-light);
    transform: translateY(-2px);
}

.btn-text {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-primary);
}

.btn-text svg {
    transition: var(--transition-smooth);
}

.btn-text:hover {
    color: var(--color-accent-dark);
}

.btn-text:hover svg {
    transform: translateX(4px);
}

/* 印章效果 */
.logo-seal {
    width: 44px;
    height: 44px;
    background-color: var(--color-danger);
    color: var(--color-bg-cream);
    font-family: var(--font-heading);
    font-weight: 900;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1.1;
    border-radius: 4px;
    box-shadow: 0 4px 8px rgba(192, 57, 43, 0.2);
    border: 1px double var(--color-bg-cream);
    padding: 2px;
}

/* 版块头部 */
.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 64px auto;
}

.section-header .subtitle {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    color: var(--color-accent-dark);
    font-weight: 700;
    display: block;
    margin-bottom: 12px;
}

.section-header .section-title {
    font-family: var(--font-heading);
    font-size: 2.3rem;
    color: var(--color-primary);
    font-weight: 700;
    margin-bottom: 16px;
}

.section-header .section-line {
    width: 60px;
    height: 3px;
    background-color: var(--color-accent);
    margin: 0 auto 20px auto;
    position: relative;
}

.section-header .section-line::after {
    content: '';
    width: 8px;
    height: 8px;
    background-color: var(--color-primary);
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotate(45deg);
}

.section-header .section-desc {
    font-size: 1.05rem;
    color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   3. 头部导航 (Header Navigation)
   -------------------------------------------------------------------------- */
.global-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(253, 251, 247, 0.85);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
    transition: var(--transition-smooth);
}

.global-header.scrolled {
    background-color: var(--color-bg-cream);
    box-shadow: var(--shadow-sm);
    padding: 10px 0;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 18px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    text-decoration: none;
    transition: var(--transition-smooth);
}

.logo-area:hover .logo-text h1 {
    color: var(--color-accent-dark);
}

.logo-area:hover .logo-seal {
    transform: scale(1.05);
}

.logo-text h1 {
    font-family: var(--font-heading);
    font-size: 1.45rem;
    color: var(--color-primary);
    font-weight: 900;
    line-height: 1.1;
}

.logo-text span {
    font-size: 0.72rem;
    letter-spacing: 1px;
    color: var(--color-accent-dark);
    font-weight: 600;
}

.desktop-nav ul {
    display: flex;
    list-style: none;
    align-items: center;
    gap: 32px;
}

.desktop-nav a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text-dark);
    position: relative;
    padding: 8px 0;
}

.desktop-nav a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: var(--transition-smooth);
}

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

.desktop-nav a:hover::after {
    width: 100%;
}

.btn-nav-booking {
    background-color: var(--color-primary);
    color: var(--color-bg-cream) !important;
    padding: 10px 20px !important;
    border-radius: var(--border-radius-sm);
    font-weight: 600 !important;
}

.btn-nav-booking:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 10px rgba(10, 95, 56, 0.15);
}

.btn-nav-booking::after {
    display: none !important;
}

/* 移动端菜单开关 */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    background: none;
    border: none;
    cursor: pointer;
    z-index: 1001;
}

.mobile-menu-toggle .bar {
    width: 100%;
    height: 2px;
    background-color: var(--color-primary);
    transition: var(--transition-smooth);
}

.mobile-menu-toggle.active .bar:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

.mobile-menu-toggle.active .bar:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active .bar:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* 移动端侧滑抽屉 */
.mobile-nav-drawer {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 320px;
    height: 100vh;
    background-color: var(--color-bg-cream);
    box-shadow: -10px 0 30px rgba(0, 0, 0, 0.1);
    z-index: 999;
    padding: 120px 40px 40px 40px;
    transition: var(--transition-smooth);
}

.mobile-nav-drawer.open {
    right: 0;
}

.mobile-nav-drawer ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.mobile-nav-drawer a {
    font-size: 1.15rem;
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--color-text-dark);
}

.mobile-nav-drawer a:hover {
    color: var(--color-primary);
}

.btn-mobile-booking {
    display: block;
    text-align: center;
    background-color: var(--color-primary);
    color: var(--color-bg-cream) !important;
    padding: 12px 0;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
}

/* --------------------------------------------------------------------------
   4. 首屏部分 (Hero Section)
   -------------------------------------------------------------------------- */
.hero-section {
    position: relative;
    padding-top: 180px;
    padding-bottom: 120px;
    background: linear-gradient(135deg, var(--color-accent-light) 0%, var(--color-primary-light) 100%);
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(10, 95, 56, 0.04) 0%, transparent 70%);
    top: -200px;
    right: -200px;
    z-index: 1;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 48px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-content .badge-tag {
    display: inline-block;
    padding: 6px 14px;
    background-color: rgba(197, 168, 128, 0.2);
    color: var(--color-accent-dark);
    font-size: 0.85rem;
    font-weight: 700;
    border-radius: 50px;
    letter-spacing: 1px;
    margin-bottom: 24px;
    border: 1px solid var(--color-accent);
}

.hero-content h2 {
    font-family: var(--font-heading);
    font-size: 3.2rem;
    line-height: 1.25;
    color: var(--color-primary);
    font-weight: 900;
    margin-bottom: 24px;
}

.hero-content h2 span {
    display: block;
    font-size: 2.1rem;
    font-weight: 700;
    color: var(--color-text-dark);
    margin-top: 8px;
}

.hero-content p {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    margin-bottom: 40px;
}

.hero-actions {
    margin-bottom: 48px;
}

.hero-highlights {
    display: flex;
    gap: 40px;
    border-top: 1px solid rgba(10, 95, 56, 0.15);
    padding-top: 32px;
}

.highlight-item {
    display: flex;
    flex-direction: column;
}

.highlight-item .num {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--color-primary);
    line-height: 1.2;
}

.highlight-item .txt {
    font-size: 0.82rem;
    color: var(--color-text-muted);
    font-weight: 500;
}

/* 医生简介卡片 */
.doctor-highlight-card {
    display: grid;
    grid-template-columns: 0.95fr 1.05fr;
    background-color: var(--color-bg-white);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-smooth);
    align-items: stretch;
}

.doctor-highlight-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.doc-portrait {
    height: 100%;
    min-height: 360px;
    background-color: var(--color-primary-light);
    overflow: hidden;
    position: relative;
}

.doc-portrait img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
}

@media (max-width: 992px) {
    .doctor-highlight-card {
        grid-template-columns: 1fr;
    }
    .doc-portrait {
        height: 360px;
        min-height: auto;
    }
}

.doc-info {
    padding: 32px;
}

.doc-info h3 {
    font-family: var(--font-heading);
    font-size: 1.6rem;
    color: var(--color-primary);
    margin-bottom: 4px;
}

.doc-info h3 span {
    font-size: 0.95rem;
    font-family: var(--font-body);
    font-weight: 500;
    color: var(--color-text-muted);
}

.doc-info .title {
    font-size: 0.9rem;
    color: var(--color-accent-dark);
    font-weight: 600;
    margin-bottom: 16px;
}

.doc-info .desc {
    font-size: 0.92rem;
    color: var(--color-text-muted);
    margin-bottom: 24px;
}

/* --------------------------------------------------------------------------
   5. 双非遗理论 (Core Theories)
   -------------------------------------------------------------------------- */
.theories-grid {
    display: grid;
    grid-template-columns: 1fr 0.6fr 1fr;
    gap: 32px;
    align-items: center;
}

.theory-card {
    background-color: var(--color-bg-white);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    padding: 40px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.theory-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--color-primary);
}

.theory-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
}

.theory-badge {
    align-self: flex-start;
    padding: 4px 12px;
    background-color: var(--color-accent-light);
    color: var(--color-accent-dark);
    font-size: 0.78rem;
    font-weight: 700;
    border-radius: 4px;
    margin-bottom: 16px;
}

.theory-card h3 {
    font-family: var(--font-heading);
    font-size: 1.45rem;
    color: var(--color-primary);
    margin-bottom: 12px;
}

.theory-card .origin {
    font-size: 0.92rem;
    color: var(--color-text-muted);
    border-bottom: 1px dashed var(--color-border);
    padding-bottom: 16px;
    margin-bottom: 16px;
}

.theory-points {
    list-style: none;
}

.theory-points li {
    font-size: 0.9rem;
    color: var(--color-text-dark);
    margin-bottom: 10px;
    position: relative;
    padding-left: 18px;
}

.theory-points li::before {
    content: '✦';
    color: var(--color-accent);
    position: absolute;
    left: 0;
    top: 0;
}

/* 结合处中心圆盘 */
.theory-joint {
    background-color: var(--color-primary);
    color: var(--color-bg-cream);
    border-radius: var(--border-radius-md);
    padding: 32px 24px;
    text-align: center;
    box-shadow: var(--shadow-md);
    position: relative;
    border: 2px solid var(--color-accent);
}

.theory-joint::before,
.theory-joint::after {
    content: '';
    position: absolute;
    height: 2px;
    background: dashed var(--color-accent);
    width: 32px;
    top: 50%;
    z-index: -1;
}

.theory-joint::before { left: -34px; }
.theory-joint::after { right: -34px; }

.joint-title {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--color-accent);
    font-weight: 700;
    margin-bottom: 8px;
}

.theory-joint h4 {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 700;
    margin-bottom: 16px;
    line-height: 1.3;
}

.theory-joint p {
    font-size: 0.88rem;
    line-height: 1.5;
    opacity: 0.85;
    margin-bottom: 20px;
}

.joint-arrow {
    display: inline-flex;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background-color: var(--color-accent);
    color: var(--color-primary-dark);
    align-items: center;
    justify-content: center;
}

/* --------------------------------------------------------------------------
   6. 传承脉络 Timeline (Lineage Timeline)
   -------------------------------------------------------------------------- */
.timeline-container {
    display: flex;
    flex-direction: column;
    position: relative;
    margin-top: 48px;
    gap: 40px;
}

.timeline-stream {
    position: relative;
    padding-bottom: 24px;
}

.stream-title {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--color-primary);
    text-align: center;
    margin-bottom: 40px;
    background-color: var(--color-accent-light);
    display: inline-block;
    padding: 8px 24px;
    border-radius: 50px;
    border: 1px solid var(--color-border);
    position: relative;
    left: 50%;
    transform: translateX(-50%);
}

.timeline-line {
    position: absolute;
    width: 2px;
    background-color: var(--color-border);
    top: 80px;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
}

.timeline-item {
    display: flex;
    justify-content: center;
    position: relative;
    margin-bottom: 48px;
    width: 100%;
}

.timeline-badge {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background-color: var(--color-accent);
    color: var(--color-primary-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    border: 3px solid var(--color-bg-cream);
    z-index: 5;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    box-shadow: var(--shadow-sm);
}

.timeline-panel {
    width: 45%;
    background-color: var(--color-bg-white);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    display: flex;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
}

/* 奇数行靠左 */
.timeline-item:nth-child(even) .timeline-panel {
    margin-right: auto;
    margin-left: 5%;
}

/* 偶数行靠右 */
.timeline-item:nth-child(odd) .timeline-panel {
    margin-left: auto;
    margin-right: 5%;
}

.timeline-panel.highlight {
    border: 2px solid var(--color-accent);
}

.panel-img {
    width: 160px;
    min-width: 160px;
    background-color: var(--color-accent-light);
}

.panel-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.panel-content {
    padding: 24px;
    flex-grow: 1;
}

.panel-content h4 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    color: var(--color-primary);
    margin-bottom: 4px;
}

.panel-content .time {
    font-size: 0.8rem;
    color: var(--color-accent-dark);
    font-weight: 600;
    margin-bottom: 12px;
}

.panel-content .text {
    font-size: 0.88rem;
    color: var(--color-text-muted);
}

.panel-content .achievements {
    margin-top: 14px;
    list-style: none;
    border-top: 1px dashed var(--color-border);
    padding-top: 10px;
}

.panel-content .achievements li {
    font-size: 0.82rem;
    color: var(--color-text-dark);
    margin-bottom: 4px;
    position: relative;
    padding-left: 14px;
}

.panel-content .achievements li::before {
    content: '•';
    color: var(--color-accent);
    position: absolute;
    left: 0;
}

/* 双非遗交汇承接人卡片 */
.timeline-connector {
    width: 90%;
    margin: 40px auto;
    position: relative;
    z-index: 10;
}

.connector-badge {
    text-align: center;
    background-color: var(--color-primary);
    color: var(--color-bg-cream);
    display: inline-block;
    padding: 6px 20px;
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 0.95rem;
    border-radius: 4px;
    border: 1px solid var(--color-accent);
    position: absolute;
    top: -16px;
    left: 50%;
    transform: translateX(-50%);
    box-shadow: var(--shadow-sm);
}

.connector-card {
    background-color: var(--color-bg-white);
    border: 2px solid var(--color-accent);
    border-radius: var(--border-radius-lg);
    padding: 48px;
    box-shadow: var(--shadow-md);
    display: grid;
    grid-template-columns: 1.1fr 1.9fr;
    gap: 40px;
    align-items: center;
}

.connector-img-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.connector-img-group img {
    border-radius: var(--border-radius-md);
    border: 1px solid var(--color-border);
    height: 180px;
    object-fit: cover;
    width: 100%;
}

.connector-info h4 {
    font-family: var(--font-heading);
    font-size: 1.7rem;
    color: var(--color-primary);
    margin-bottom: 8px;
}

.connector-info .desc {
    font-size: 0.95rem;
    color: var(--color-accent-dark);
    font-weight: 600;
    margin-bottom: 20px;
}

.connector-info .innovation {
    font-size: 0.92rem;
    color: var(--color-text-dark);
    background-color: var(--color-primary-light);
    border-left: 4px solid var(--color-primary);
    padding: 16px;
    border-radius: 0 var(--border-radius-sm) var(--border-radius-sm) 0;
}

/* 第四代部分 */
.generation-four {
    margin-top: 64px;
}

.gen-four-card {
    background-color: var(--color-primary-dark);
    color: var(--color-bg-cream);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    box-shadow: var(--shadow-md);
}

.gen-four-info {
    padding: 48px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.gen-four-info h4 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    color: var(--color-accent);
    margin-bottom: 16px;
}

.gen-four-info p {
    font-size: 0.92rem;
    line-height: 1.7;
    opacity: 0.85;
}

.gen-four-img {
    height: 100%;
}

.gen-four-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* --------------------------------------------------------------------------
   6.5. 专家团队 (Expert Team Section)
   -------------------------------------------------------------------------- */
.team-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    margin-top: 48px;
}

.team-member-card {
    background-color: var(--color-bg-white);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    padding: 40px 32px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    align-items: center;
}

.team-member-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-accent);
}

.member-avatar {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    border: 3px solid var(--color-accent-light);
    overflow: hidden;
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
}

.team-member-card:hover .member-avatar {
    border-color: var(--color-accent);
    transform: scale(1.05);
}

.member-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
}

.member-info h4 {
    font-family: var(--font-heading);
    font-size: 1.3rem;
    color: var(--color-primary);
    margin-bottom: 6px;
    font-weight: 700;
}

.member-role {
    font-size: 0.85rem;
    color: var(--color-accent-dark);
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: 0.5px;
}

.member-desc {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    line-height: 1.6;
    text-align: justify;
}

/* --------------------------------------------------------------------------
   7. 六大专科 (Specialties Dashboard)
   -------------------------------------------------------------------------- */
.specialties-dashboard {
    background-color: var(--color-bg-white);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    display: flex;
    flex-direction: column;
}

/* Tab 按钮区 */
.tab-buttons {
    display: flex;
    background-color: var(--color-accent-light);
    border-bottom: 1px solid var(--color-border);
}

.tab-btn {
    flex: 1;
    padding: 24px 12px;
    background: none;
    border: none;
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: var(--transition-smooth);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    border-right: 1px solid rgba(197, 168, 128, 0.3);
}

.tab-btn:last-child {
    border-right: none;
}

.tab-btn:hover {
    background-color: rgba(10, 95, 56, 0.03);
    color: var(--color-primary);
}

.tab-btn.active {
    background-color: var(--color-bg-white);
    color: var(--color-primary);
    position: relative;
}

.tab-btn.active::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    height: 3px;
    background-color: var(--color-primary);
}

.tab-btn .icon {
    font-size: 1.4rem;
}

/* Tab 内容面板 */
.tab-contents {
    padding: 48px;
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
    animation: tabFadeIn 0.5s ease;
}

@keyframes tabFadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.panel-layout {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 48px;
    align-items: start;
}

.panel-desc h3 {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    color: var(--color-primary);
    margin-bottom: 4px;
}

.panel-desc .tagline {
    font-size: 0.92rem;
    color: var(--color-accent-dark);
    font-weight: 700;
    margin-bottom: 24px;
    letter-spacing: 1px;
}

.panel-desc .text {
    font-size: 0.95rem;
    color: var(--color-text-dark);
    margin-bottom: 32px;
}

.solution-highlights {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 40px;
}

.sol-item {
    background-color: var(--color-primary-light);
    padding: 16px;
    border-radius: var(--border-radius-sm);
    font-size: 0.88rem;
    color: var(--color-text-dark);
    border-left: 3px solid var(--color-primary);
}

/* 专科画廊 */
.panel-gallery {
    background-color: var(--color-bg-cream);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    padding: 24px;
}

.panel-gallery .gallery-title {
    font-family: var(--font-heading);
    font-size: 0.9rem;
    color: var(--color-accent-dark);
    font-weight: 700;
    margin-bottom: 16px;
    text-transform: uppercase;
}

.gallery-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.gallery-grid img {
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--color-border);
    height: 140px;
    object-fit: cover;
    width: 100%;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.gallery-grid img:hover {
    transform: scale(1.04);
}

.gallery-grid img:first-child:nth-last-child(3),
.gallery-grid img:first-child:nth-last-child(3) ~ img {
    /* 针对3张图的布局：第一张横跨两栏，后两张各占一栏 */
}
.gallery-grid img:first-child:nth-last-child(3) {
    grid-column: span 2;
    height: 180px;
}

/* --------------------------------------------------------------------------
   8. 特色膏药 (Plaster Product)
   -------------------------------------------------------------------------- */
.plaster-layout {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 64px;
    align-items: start;
}

.plaster-media {
    position: sticky;
    top: 120px;
}

.plaster-main-img {
    background-color: var(--color-bg-white);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-sm);
    margin-bottom: 20px;
}

.plaster-main-img img {
    width: 100%;
    height: 360px;
    object-fit: contain;
}

.plaster-thumbs {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.plaster-thumbs img {
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--color-border);
    height: 80px;
    object-fit: cover;
    cursor: pointer;
    transition: var(--transition-smooth);
    background-color: var(--color-bg-white);
}

.plaster-thumbs img:hover,
.plaster-thumbs img.active {
    border-color: var(--color-primary);
    transform: scale(1.05);
}

.plaster-details .plaster-badge {
    display: inline-block;
    padding: 4px 12px;
    background-color: var(--color-primary);
    color: var(--color-bg-cream);
    font-size: 0.8rem;
    font-weight: 700;
    border-radius: 4px;
    margin-bottom: 16px;
}

.plaster-details h3 {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    color: var(--color-primary);
    margin-bottom: 16px;
}

.plaster-details .desc {
    font-size: 1.02rem;
    color: var(--color-text-muted);
    margin-bottom: 32px;
}

.effects-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 40px;
}

.effect-card {
    background-color: var(--color-bg-white);
    border: 1px solid var(--color-border);
    padding: 20px;
    border-radius: var(--border-radius-sm);
}

.effect-card h4 {
    color: var(--color-primary);
    font-family: var(--font-heading);
    font-size: 0.95rem;
    margin-bottom: 8px;
    font-weight: 700;
}

.effect-card p {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    line-height: 1.5;
}

.process-steps {
    border-top: 1px dashed var(--color-border);
    padding-top: 32px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.process-steps .step {
    display: flex;
    gap: 16px;
}

.process-steps .step-num {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--color-accent);
}

.process-steps h5 {
    font-size: 0.95rem;
    color: var(--color-text-dark);
    margin-bottom: 4px;
    font-weight: 600;
}

.process-steps p {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* --------------------------------------------------------------------------
   9. 科研合作 (Collaborations Showcase)
   -------------------------------------------------------------------------- */
.coop-showcase {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 48px;
    align-items: center;
}

.partner-card {
    background-color: var(--color-bg-white);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md);
    padding: 32px;
    margin-bottom: 24px;
    box-shadow: var(--shadow-sm);
}

.partner-card:last-child {
    margin-bottom: 0;
}

.partner-card h4 {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    color: var(--color-primary);
    margin-bottom: 16px;
    padding-left: 12px;
    border-left: 3px solid var(--color-accent);
}

.partner-card ul {
    list-style: none;
}

.partner-card li {
    font-size: 0.9rem;
    color: var(--color-text-dark);
    margin-bottom: 12px;
}

.partner-card li strong {
    color: var(--color-primary-dark);
}

.coop-images .coop-main-img {
    border-radius: var(--border-radius-md);
    overflow: hidden;
    border: 1px solid var(--color-border);
    margin-bottom: 16px;
    box-shadow: var(--shadow-sm);
}

.coop-images .coop-main-img img {
    width: 100%;
    height: 240px;
    object-fit: cover;
}

.coop-img-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
}

.coop-img-grid img {
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--color-border);
    height: 70px;
    object-fit: cover;
    width: 100%;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.coop-img-grid img:hover {
    transform: scale(1.05);
}

/* --------------------------------------------------------------------------
   10. 预约与留言 (Booking Form & Input Styles)
   -------------------------------------------------------------------------- */
.booking-wrapper {
    display: grid;
    grid-template-columns: 0.95fr 1.05fr;
    gap: 64px;
    align-items: start;
}

.booking-info {
    position: sticky;
    top: 120px;
}

.booking-info h3 {
    font-family: var(--font-heading);
    font-size: 2.2rem;
    color: var(--color-primary);
    margin-top: 16px;
    margin-bottom: 16px;
}

.booking-info p {
    font-size: 1.02rem;
    color: var(--color-text-muted);
    margin-bottom: 40px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.c-item {
    display: flex;
    gap: 16px;
    align-items: start;
}

.c-icon {
    font-size: 1.5rem;
    color: var(--color-primary);
}

.c-item h5 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--color-text-dark);
    margin-bottom: 4px;
}

.c-item p {
    font-size: 0.88rem;
    color: var(--color-text-muted);
    margin-bottom: 0;
}

/* 预约表单卡片 */
.booking-form-container {
    background-color: var(--color-bg-white);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    padding: 48px;
    box-shadow: var(--shadow-md);
}

.booking-form-container h4 {
    font-family: var(--font-heading);
    font-size: 1.45rem;
    color: var(--color-primary);
    margin-bottom: 32px;
    border-bottom: 1px solid var(--color-accent-light);
    padding-bottom: 16px;
}

.booking-form .form-group {
    margin-bottom: 24px;
    position: relative;
}

.booking-form .form-row {
    display: grid;
    grid-template-columns: 0.8fr 1.2fr;
    gap: 16px;
}

.booking-form label {
    display: block;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--color-text-dark);
    margin-bottom: 8px;
}

.booking-form label .req {
    color: var(--color-danger);
}

.booking-form input,
.booking-form select,
.booking-form textarea {
    width: 100%;
    padding: 12px 16px;
    font-size: 0.92rem;
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-sm);
    background-color: var(--color-bg-cream);
    color: var(--color-text-dark);
    font-family: var(--font-body);
    transition: var(--transition-smooth);
}

.booking-form input:focus,
.booking-form select:focus,
.booking-form textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    background-color: var(--color-bg-white);
    box-shadow: 0 0 0 3px rgba(10, 95, 56, 0.08);
}

.booking-form select {
    appearance: none;
    background-image: url("data:image/svg+xml;utf8,<svg fill='%230A5F38' height='24' viewBox='0 0 24 24' width='24' xmlns='http://www.w3.org/2000/svg'><path d='M7 10l5 5 5-5z'/><path d='M0 0h24v24H0z' fill='none'/></svg>");
    background-repeat: no-repeat;
    background-position: right 12px center;
}

.booking-form .err-msg {
    position: absolute;
    bottom: -18px;
    left: 0;
    font-size: 0.75rem;
    color: var(--color-danger);
    display: none;
}

.booking-form .form-group.invalid input,
.booking-form .form-group.invalid select {
    border-color: var(--color-danger);
    background-color: rgba(192, 57, 43, 0.02);
}

.booking-form .form-group.invalid .err-msg {
    display: block;
}

.booking-form .btn-submit {
    width: 100%;
    padding: 16px 0;
    margin-top: 16px;
}

/* --------------------------------------------------------------------------
   11. 临床案例 Modal 弹窗系统 (Modals Showcase)
   -------------------------------------------------------------------------- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(18, 26, 22, 0.6);
    backdrop-filter: blur(8px);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.modal-overlay.open {
    display: flex;
}

.modal-card {
    background-color: var(--color-bg-cream);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-lg);
    width: 100%;
    max-width: 700px;
    max-height: 85vh;
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    position: relative;
    display: flex;
    flex-direction: column;
    animation: modalPop 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
}

@keyframes modalPop {
    from { opacity: 0; transform: scale(0.95) translateY(15px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-close {
    position: absolute;
    top: 18px;
    right: 24px;
    font-size: 2.2rem;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-text-muted);
    transition: var(--transition-smooth);
    z-index: 10;
}

.modal-close:hover {
    color: var(--color-primary);
}

.modal-header-content {
    padding: 32px 32px 16px 32px;
    border-bottom: 1px solid rgba(197, 168, 128, 0.2);
}

.modal-tag {
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--color-accent-dark);
    text-transform: uppercase;
    letter-spacing: 1px;
    display: block;
    margin-bottom: 6px;
}

.modal-card h4 {
    font-family: var(--font-heading);
    font-size: 1.45rem;
    color: var(--color-primary);
}

.modal-body {
    padding: 32px;
    overflow-y: auto;
    flex-grow: 1;
}

/* 弹窗内容内部布局 */
.modal-body h5 {
    font-family: var(--font-heading);
    color: var(--color-primary);
    font-size: 1.05rem;
    margin-top: 24px;
    margin-bottom: 10px;
}

.modal-body h5:first-of-type {
    margin-top: 0;
}

.modal-body p {
    font-size: 0.9rem;
    color: var(--color-text-dark);
    margin-bottom: 16px;
}

.modal-case-report {
    background-color: var(--color-accent-light);
    border-left: 3px solid var(--color-accent);
    padding: 16px;
    border-radius: var(--border-radius-sm);
    margin-bottom: 24px;
}

.modal-case-report p {
    margin-bottom: 8px;
    font-size: 0.88rem;
}

.modal-case-report p:last-child {
    margin-bottom: 0;
}

.modal-image-gallery {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-top: 20px;
}

.modal-image-gallery img {
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--color-border);
    height: 180px;
    object-fit: cover;
    width: 100%;
}

.modal-image-gallery .full-width {
    grid-column: span 2;
    height: auto;
    max-height: 300px;
    object-fit: contain;
}

/* --------------------------------------------------------------------------
   12. 提交成功 Toast 通知 (Toast Notification)
   -------------------------------------------------------------------------- */
.toast-notification {
    position: fixed;
    bottom: -100px;
    right: 40px;
    background-color: var(--color-primary);
    color: var(--color-bg-cream);
    border: 2px solid var(--color-accent);
    border-radius: var(--border-radius-md);
    padding: 20px 24px;
    box-shadow: var(--shadow-lg);
    z-index: 2500;
    transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.toast-notification.show {
    transform: translateY(-140px);
}

.toast-content {
    display: flex;
    align-items: center;
    gap: 16px;
}

.toast-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background-color: var(--color-bg-cream);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.1rem;
}

.toast-content h5 {
    font-family: var(--font-heading);
    font-size: 1rem;
    margin-bottom: 2px;
}

.toast-content p {
    font-size: 0.8rem;
    opacity: 0.9;
}

/* --------------------------------------------------------------------------
   13. 页脚部分 (Global Footer)
   -------------------------------------------------------------------------- */
.global-footer {
    background-color: var(--color-primary-dark);
    color: var(--color-bg-cream);
    border-top: 2px solid var(--color-accent);
    padding: 80px 0;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1.3fr 0.9fr 1.8fr;
    gap: 64px;
}

.footer-left .footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.footer-left .footer-logo h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 900;
}

.footer-left .motto {
    font-size: 0.88rem;
    opacity: 0.75;
    margin-bottom: 32px;
}

.footer-left .copyright {
    font-size: 0.75rem;
    opacity: 0.5;
}

.footer-left .copyright a {
    text-decoration: underline;
}

.footer-middle h4 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    color: var(--color-accent);
    margin-bottom: 24px;
    font-weight: 700;
}

.footer-middle ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-middle a {
    font-size: 0.88rem;
    opacity: 0.75;
}

.footer-middle a:hover {
    color: var(--color-accent);
    opacity: 1;
    padding-left: 4px;
}

.footer-right {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    text-align: right;
    position: relative;
}

/* 印章水印背景 */
.brand-seal-watermark {
    width: 110px;
    height: 110px;
    border: 3px double rgba(197, 168, 128, 0.2);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    padding: 6px;
}

.brand-seal-watermark .seal-text {
    font-family: var(--font-heading);
    font-weight: 900;
    font-size: 2.2rem;
    line-height: 1;
    color: rgba(197, 168, 128, 0.25);
    text-align: center;
    border: 1px solid rgba(197, 168, 128, 0.15);
    padding: 6px 12px;
}

.footer-right .disclaimer {
    font-size: 0.75rem;
    opacity: 0.45;
    line-height: 1.6;
    max-width: 440px;
}

/* --------------------------------------------------------------------------
   14. 滚动动画展示效果 Reveal on Scroll
   -------------------------------------------------------------------------- */
.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.scroll-reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* --------------------------------------------------------------------------
   15. 响应式布局 Media Queries (Mobile, Tablet, Desktop adjustments)
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }
    
    .hero-content h2 {
        font-size: 2.7rem;
    }
    
    .hero-content h2 span {
        font-size: 1.8rem;
    }
    
    .hero-highlights {
        justify-content: center;
    }
    
    .hero-card-container {
        max-width: 500px;
        margin: 0 auto;
    }
    
    .theories-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .theory-joint::before,
    .theory-joint::after {
        display: none;
    }
    
    .connector-card {
        grid-template-columns: 1fr;
        padding: 32px;
        gap: 24px;
    }
    
    .panel-layout {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .plaster-layout {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .plaster-media {
        position: static;
    }
    
    .coop-showcase {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .booking-wrapper {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .booking-info {
        position: static;
    }
    
    .footer-container {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
    
    .footer-right {
        grid-column: span 2;
        align-items: flex-start;
        text-align: left;
    }
    
    .brand-seal-watermark {
        margin-bottom: 16px;
    }
    
    .team-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }
}

@media (max-width: 768px) {
    .section {
        padding: 60px 0;
    }
    
    .section-header .section-title {
        font-size: 1.85rem;
    }
    
    .global-header {
        padding: 4px 0;
    }
    
    .desktop-nav {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .timeline-line {
        left: 20px;
    }
    
    .timeline-badge {
        left: 20px;
        transform: none;
    }
    
    .timeline-panel {
        width: calc(100% - 60px);
        margin-left: 60px !important;
        margin-right: 0 !important;
        flex-direction: column;
    }
    
    .panel-img {
        width: 100%;
        height: 200px;
    }
    
    .connector-card {
        width: 100%;
        padding: 24px;
    }
    
    .connector-img-group {
        grid-template-columns: 1fr;
    }
    
    .connector-img-group img {
        height: 200px;
    }
    
    .gen-four-card {
        grid-template-columns: 1fr;
    }
    
    .gen-four-img {
        height: 220px;
    }
    
    .tab-buttons {
        flex-wrap: wrap;
    }
    
    .tab-btn {
        flex: 1 1 33.33%;
        padding: 16px 8px;
        font-size: 0.9rem;
    }
    
    .tab-contents {
        padding: 24px;
    }
    
    .booking-form-container {
        padding: 28px;
    }
    
    .booking-form .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }
    
    .footer-container {
        grid-template-columns: 1fr;
    }
    
    .footer-right {
        grid-column: span 1;
    }
    
    .team-grid {
        grid-template-columns: 1fr;
    }
    
    .team-member-card {
        padding: 32px 24px;
    }
}

@media (max-width: 480px) {
    .hero-content h2 {
        font-size: 2.1rem;
    }
    
    .hero-content h2 span {
        font-size: 1.45rem;
    }
    
    .hero-highlights {
        flex-direction: column;
        gap: 16px;
        align-items: center;
    }
    
    .hero-actions {
        display: flex;
        flex-direction: column;
        gap: 12px;
    }
    
    .btn-secondary {
        margin-left: 0;
    }
    
    .tab-btn {
        flex: 1 1 50%;
    }
    
    .effects-grid {
        grid-template-columns: 1fr;
    }
}

/* SVG Icon alignments */
.tab-icon {
    vertical-align: middle;
    display: inline-block;
    color: currentColor;
    margin-bottom: 2px;
}

.contact-svg-icon {
    vertical-align: top;
    display: inline-block;
    color: var(--color-primary);
    margin-top: 4px;
}

/* Back to Top Button */
.back-to-top {
    position: fixed;
    bottom: 40px;
    right: 40px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--color-primary);
    color: var(--color-bg-cream);
    border: 1px solid var(--color-accent);
    box-shadow: var(--shadow-md);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.back-to-top.show {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.back-to-top svg {
    transition: transform 0.3s ease;
}

.back-to-top:hover svg {
    transform: translateY(-2px);
}

/* Responsive styles for back-to-top on small screens */
@media (max-width: 768px) {
    .back-to-top {
        bottom: 24px;
        right: 24px;
        width: 44px;
        height: 44px;
    }
}