/* ===== 基础变量 ===== */
:root {
    --color-teal: #0EA5A5;
    --color-teal-dark: #0B7E7E;
    --color-teal-light: #5EEAD4;
    --color-navy: #0F3D5C;
    --color-navy-dark: #0A2940;
    --color-navy-light: #1E5A82;
    --color-warm-white: #F7FAFA;
    --color-mint: #E6F7F5;
    --color-mint-deep: #B8E8E2;
    --color-orange: #F97316;
    --color-orange-light: #FB923C;
    --color-gray: #64748B;
    --color-gray-light: #94A3B8;
    --color-gray-lighter: #E2E8F0;
    --color-text: #1E293B;
    --color-text-light: #F7FAFA;
    --color-white: #FFFFFF;
    --color-border: #E2E8F0;

    --font-serif: 'Noto Serif SC', 'Songti SC', serif;
    --font-sans: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --radius-pill: 999px;

    --shadow-sm: 0 1px 3px rgba(15, 61, 92, 0.06);
    --shadow-md: 0 4px 16px rgba(15, 61, 92, 0.08);
    --shadow-lg: 0 12px 40px rgba(15, 61, 92, 0.12);
    --shadow-xl: 0 20px 60px rgba(15, 61, 92, 0.16);
    --shadow-teal: 0 8px 24px rgba(14, 165, 165, 0.25);

    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);

    --max-width: 1200px;
}

/* ===== 重置 ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-sans);
    color: var(--color-text);
    background: var(--color-warm-white);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

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

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

ul { list-style: none; }

/* ===== 容器 ===== */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== 按钮 ===== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: var(--radius-pill);
    font-family: var(--font-sans);
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: all var(--transition);
    white-space: nowrap;
    letter-spacing: 0.02em;
}

.btn-primary {
    background: var(--color-teal);
    color: var(--color-white);
    box-shadow: var(--shadow-teal);
}
.btn-primary:hover {
    background: var(--color-teal-dark);
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(14, 165, 165, 0.35);
}

.btn-outline {
    background: transparent;
    color: var(--color-navy);
    border: 2px solid var(--color-navy);
}
.btn-outline:hover {
    background: var(--color-navy);
    color: var(--color-white);
}

.btn-accent {
    background: var(--color-orange);
    color: var(--color-white);
    box-shadow: 0 8px 24px rgba(249, 115, 22, 0.3);
}
.btn-accent:hover {
    background: var(--color-orange-light);
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(249, 115, 22, 0.4);
}

.btn-lg {
    padding: 14px 32px;
    font-size: 1.05rem;
}

.btn-block {
    width: 100%;
}

/* ===== Header ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(247, 250, 250, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid transparent;
    transition: all var(--transition);
}

.header.scrolled {
    background: rgba(247, 250, 250, 0.95);
    border-bottom-color: var(--color-border);
    box-shadow: var(--shadow-sm);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--color-navy);
}

.logo-icon {
    width: 36px;
    height: 36px;
    color: var(--color-teal);
    flex-shrink: 0;
}

.logo-text {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-navy);
    letter-spacing: 0.02em;
}

.logo-text em {
    font-style: normal;
    font-weight: 400;
    color: var(--color-teal);
    margin-left: 2px;
}

.nav {
    display: flex;
    gap: 8px;
}

.nav-link {
    padding: 8px 16px;
    font-size: 0.9rem;
    font-weight: 400;
    color: var(--color-navy);
    border-radius: var(--radius-pill);
    transition: all var(--transition);
    position: relative;
}

.nav-link:hover {
    color: var(--color-teal);
    background: var(--color-mint);
}

.nav-cta {
    padding: 10px 24px;
    font-size: 0.9rem;
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-navy);
    border-radius: 2px;
    transition: all var(--transition);
}

.hamburger.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}
.hamburger.active span:nth-child(2) {
    opacity: 0;
}
.hamburger.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ===== Hero ===== */
.hero {
    position: relative;
    padding: 140px 0 100px;
    background: linear-gradient(170deg, var(--color-mint) 0%, var(--color-warm-white) 60%);
    overflow: hidden;
}

.hero-bg-decoration {
    position: absolute;
    inset: 0;
    overflow: hidden;
    pointer-events: none;
}

.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.4;
}

.blob-1 {
    width: 500px;
    height: 500px;
    background: var(--color-teal-light);
    top: -100px;
    right: -150px;
}

.blob-2 {
    width: 400px;
    height: 400px;
    background: var(--color-mint-deep);
    bottom: -50px;
    left: -100px;
}

.grid-pattern {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(14, 165, 165, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(14, 165, 165, 0.03) 1px, transparent 1px);
    background-size: 40px 40px;
}

.hero-inner {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(14, 165, 165, 0.1);
    color: var(--color-teal-dark);
    border-radius: var(--radius-pill);
    font-size: 0.82rem;
    font-weight: 500;
    margin-bottom: 24px;
    border: 1px solid rgba(14, 165, 165, 0.2);
    animation: fadeUp 0.8s ease both;
}

.hero-title {
    font-family: var(--font-serif);
    font-size: 3.5rem;
    line-height: 1.2;
    font-weight: 900;
    color: var(--color-navy);
    margin-bottom: 24px;
}

.title-line {
    display: block;
    animation: fadeUp 0.8s ease both;
    animation-delay: 0.1s;
}

.title-emphasis {
    color: var(--color-teal);
    animation-delay: 0.25s;
}

.hero-desc {
    font-size: 1.15rem;
    color: var(--color-gray);
    line-height: 1.8;
    margin-bottom: 36px;
    max-width: 480px;
    animation: fadeUp 0.8s ease both;
    animation-delay: 0.4s;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
    animation: fadeUp 0.8s ease both;
    animation-delay: 0.55s;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 24px;
    animation: fadeUp 0.8s ease both;
    animation-delay: 0.7s;
}

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

.stat-num {
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-navy);
    line-height: 1;
}

.stat-num sup {
    font-size: 0.8rem;
    font-weight: 400;
    color: var(--color-teal);
}

.stat-label {
    font-size: 0.82rem;
    color: var(--color-gray);
    margin-top: 4px;
}

.stat-divider {
    width: 1px;
    height: 36px;
    background: var(--color-gray-lighter);
}

/* Hero Visual */
.hero-visual {
    position: relative;
    animation: fadeIn 1s ease both;
    animation-delay: 0.3s;
}

.hero-image-frame {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
    border: 6px solid var(--color-white);
}

.hero-image {
    width: 100%;
    height: 420px;
    object-fit: cover;
}

.hero-image-glow {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent 40%, rgba(14, 165, 165, 0.1) 100%);
    pointer-events: none;
}

.floating-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    background: var(--color-white);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    animation: floatUp 3s ease-in-out infinite;
}

.floating-card svg {
    width: 28px;
    height: 28px;
    color: var(--color-teal);
    flex-shrink: 0;
}

.floating-card strong {
    display: block;
    font-size: 0.88rem;
    color: var(--color-navy);
    font-weight: 700;
}

.floating-card span {
    font-size: 0.78rem;
    color: var(--color-gray);
}

.floating-card-1 {
    top: 30px;
    left: -30px;
    animation-delay: 0s;
}

.floating-card-2 {
    bottom: 40px;
    right: -20px;
    animation-delay: 1.5s;
}

.hero-wave {
    position: absolute;
    bottom: -1px;
    left: 0;
    width: 100%;
    line-height: 0;
}

.hero-wave svg {
    width: 100%;
    height: 60px;
}

/* ===== 通用 Section ===== */
.section {
    padding: 90px 0;
    position: relative;
}

.section-science { background: var(--color-warm-white); }
.section-medicine { background: var(--color-white); }
.section-consult { background: var(--color-navy); }
.section-data { background: var(--color-warm-white); }
.section-qualifications { background: var(--color-white); }
.section-tech-service { background: var(--color-warm-white); }

.section-header {
    text-align: center;
    max-width: 680px;
    margin: 0 auto 56px;
}

.section-tag {
    display: inline-block;
    padding: 5px 14px;
    background: var(--color-mint);
    color: var(--color-teal-dark);
    border-radius: var(--radius-pill);
    font-size: 0.82rem;
    font-weight: 500;
    margin-bottom: 16px;
}

.section-tag-blue {
    background: rgba(15, 61, 92, 0.08);
    color: var(--color-navy);
}

.section-tag-orange {
    background: rgba(249, 115, 22, 0.12);
    color: var(--color-orange);
}

.section-title {
    font-family: var(--font-serif);
    font-size: 2.3rem;
    font-weight: 700;
    color: var(--color-navy);
    line-height: 1.3;
    margin-bottom: 16px;
}

.section-title em {
    font-style: normal;
    color: var(--color-teal);
}

.section-title-light {
    color: var(--color-white);
}

.section-title-light em {
    color: var(--color-teal-light);
}

.section-subtitle {
    font-size: 1.05rem;
    color: var(--color-gray);
    line-height: 1.7;
}

/* ===== 科普卡片 ===== */
.card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.science-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.science-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--color-teal), var(--color-teal-light));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition);
}

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

.science-card:hover::before {
    transform: scaleX(1);
}

.card-icon-wrap {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.card-icon-wrap svg {
    width: 28px;
    height: 28px;
}

.card-icon-teal {
    background: var(--color-mint);
    color: var(--color-teal);
}

.card-icon-blue {
    background: rgba(15, 61, 92, 0.08);
    color: var(--color-navy);
}

.card-icon-mint {
    background: rgba(94, 234, 212, 0.2);
    color: var(--color-teal-dark);
}

.card-tag {
    display: inline-block;
    padding: 3px 10px;
    background: var(--color-mint);
    color: var(--color-teal-dark);
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
    margin-bottom: 12px;
}

.card-tag-blue {
    background: rgba(15, 61, 92, 0.08);
    color: var(--color-navy);
}

.card-title {
    font-family: var(--font-serif);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-navy);
    margin-bottom: 12px;
}

.card-text {
    font-size: 0.92rem;
    color: var(--color-gray);
    line-height: 1.7;
    margin-bottom: 20px;
}

.card-link {
    font-size: 0.88rem;
    font-weight: 500;
    color: var(--color-teal);
    transition: all var(--transition);
}

.card-link:hover {
    color: var(--color-teal-dark);
    letter-spacing: 0.03em;
}

/* ===== 医药资讯 ===== */
.medicine-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.medicine-card {
    display: grid;
    grid-template-columns: 60px 1fr 160px;
    gap: 32px;
    align-items: center;
    padding: 32px 36px;
    background: var(--color-warm-white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    transition: all var(--transition);
}

.medicine-card:hover {
    background: var(--color-white);
    box-shadow: var(--shadow-md);
    border-color: var(--color-mint-deep);
    transform: translateX(4px);
}

.medicine-number {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    font-weight: 900;
    color: var(--color-mint-deep);
    line-height: 1;
    transition: color var(--transition);
}

.medicine-card:hover .medicine-number {
    color: var(--color-teal);
}

.medicine-title {
    font-family: var(--font-serif);
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--color-navy);
    margin: 8px 0 10px;
}

.medicine-text {
    font-size: 0.92rem;
    color: var(--color-gray);
    line-height: 1.7;
    margin-bottom: 12px;
}

.medicine-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    color: var(--color-gray-light);
}

.meta-dot {
    color: var(--color-gray-lighter);
}

.medicine-visual {
    width: 160px;
    height: 160px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.medicine-visual svg {
    width: 100%;
    height: 100%;
    transition: transform var(--transition);
}

.medicine-card:hover .medicine-visual svg {
    transform: scale(1.08) rotate(-3deg);
}

/* ===== 咨询服务入口 ===== */
.consult-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.consult-desc {
    font-size: 1.05rem;
    color: rgba(247, 250, 250, 0.7);
    line-height: 1.8;
    margin: 20px 0 28px;
}

.consult-features {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.consult-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1rem;
    color: rgba(247, 250, 250, 0.9);
}

.consult-features svg {
    width: 22px;
    height: 22px;
    color: var(--color-teal-light);
    flex-shrink: 0;
}

.consult-form {
    background: var(--color-white);
    padding: 40px 36px;
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.form-title {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-navy);
    margin-bottom: 24px;
    text-align: center;
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-navy);
    margin-bottom: 6px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: var(--font-sans);
    font-size: 0.92rem;
    color: var(--color-text);
    background: var(--color-warm-white);
    transition: all var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-teal);
    background: var(--color-white);
    box-shadow: 0 0 0 4px rgba(14, 165, 165, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

.form-success {
    display: none;
    margin-top: 16px;
    padding: 12px 16px;
    background: var(--color-mint);
    color: var(--color-teal-dark);
    border-radius: var(--radius-sm);
    font-size: 0.88rem;
    text-align: center;
}

.form-success.show {
    display: block;
    animation: fadeUp 0.4s ease;
}

/* ===== 数据技术 ===== */
.data-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.data-feature {
    display: flex;
    gap: 20px;
    padding: 32px 28px;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    transition: all var(--transition);
    position: relative;
    overflow: hidden;
}

.data-feature::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, var(--color-mint) 0%, transparent 70%);
    opacity: 0;
    transition: opacity var(--transition);
}

.data-feature:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-mint-deep);
}

.data-feature:hover::after {
    opacity: 0.6;
}

.feature-num {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    font-weight: 900;
    color: var(--color-mint-deep);
    line-height: 1;
    flex-shrink: 0;
    transition: color var(--transition);
}

.data-feature:hover .feature-num {
    color: var(--color-teal);
}

.feature-icon {
    position: absolute;
    top: 28px;
    right: 28px;
    width: 32px;
    height: 32px;
    color: var(--color-teal);
    opacity: 0.3;
}

.feature-title {
    font-family: var(--font-serif);
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--color-navy);
    margin-bottom: 8px;
    position: relative;
    z-index: 1;
}

.feature-text {
    font-size: 0.9rem;
    color: var(--color-gray);
    line-height: 1.7;
    position: relative;
    z-index: 1;
}

/* ===== 企业资质 ===== */
.qual-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.qual-card {
    padding: 32px 20px;
    background: var(--color-warm-white);
    border-radius: var(--radius-lg);
    border: 2px solid var(--color-border);
    text-align: center;
    transition: all var(--transition);
    position: relative;
}

.qual-card::before {
    content: '';
    position: absolute;
    top: 12px;
    left: 12px;
    right: 12px;
    bottom: 12px;
    border: 1px dashed var(--color-gray-lighter);
    border-radius: var(--radius-md);
    pointer-events: none;
    transition: border-color var(--transition);
}

.qual-card:hover {
    border-color: var(--color-teal);
    background: var(--color-white);
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.qual-card:hover::before {
    border-color: var(--color-mint-deep);
}

.qual-badge {
    width: 60px;
    height: 60px;
    margin: 0 auto 16px;
    background: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-teal);
    box-shadow: var(--shadow-sm);
    position: relative;
    z-index: 1;
}

.qual-badge svg {
    width: 28px;
    height: 28px;
}

.qual-title {
    font-family: var(--font-serif);
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--color-navy);
    margin-bottom: 10px;
    position: relative;
    z-index: 1;
}

.qual-text {
    font-size: 0.82rem;
    color: var(--color-gray);
    line-height: 1.6;
    position: relative;
    z-index: 1;
}

/* ===== 技术服务 ===== */
.tech-service-list {
    display: flex;
    flex-direction: column;
    gap: 0;
}

.tech-service-item {
    display: flex;
    gap: 40px;
    padding: 40px 0;
    border-bottom: 1px solid var(--color-border);
    transition: all var(--transition);
}

.tech-service-item:last-child {
    border-bottom: none;
}

.tech-service-item:hover {
    padding-left: 16px;
}

.ts-index {
    display: flex;
    flex-direction: column;
    align-items: center;
    flex-shrink: 0;
    width: 60px;
}

.ts-num {
    font-family: var(--font-serif);
    font-size: 1.6rem;
    font-weight: 900;
    color: var(--color-teal);
    line-height: 1;
}

.ts-line {
    width: 2px;
    flex: 1;
    background: linear-gradient(to bottom, var(--color-mint-deep), transparent);
    margin-top: 12px;
}

.tech-service-item:last-child .ts-line {
    display: none;
}

.ts-content {
    flex: 1;
}

.ts-title {
    font-family: var(--font-serif);
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-navy);
    margin-bottom: 12px;
    transition: color var(--transition);
}

.tech-service-item:hover .ts-title {
    color: var(--color-teal);
}

.ts-text {
    font-size: 0.95rem;
    color: var(--color-gray);
    line-height: 1.8;
    margin-bottom: 16px;
    max-width: 720px;
}

.ts-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.ts-tag {
    padding: 4px 12px;
    background: var(--color-mint);
    color: var(--color-teal-dark);
    border-radius: var(--radius-pill);
    font-size: 0.78rem;
    font-weight: 500;
}

/* ===== Footer ===== */
.footer {
    background: var(--color-navy-dark);
    color: rgba(247, 250, 250, 0.8);
    padding: 60px 0 24px;
}

.footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr;
    gap: 48px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(247, 250, 250, 0.1);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
}

.footer-logo .logo-icon {
    color: var(--color-teal-light);
}

.logo-text-light {
    color: var(--color-white) !important;
}

.logo-text-light em {
    color: var(--color-teal-light) !important;
}

.footer-desc {
    font-size: 0.9rem;
    line-height: 1.7;
    color: rgba(247, 250, 250, 0.5);
    max-width: 380px;
}

.footer-title {
    font-family: var(--font-serif);
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 20px;
}

.footer-links li,
.footer-contact li {
    margin-bottom: 12px;
}

.footer-links a {
    font-size: 0.88rem;
    color: rgba(247, 250, 250, 0.6);
    transition: all var(--transition);
}

.footer-links a:hover {
    color: var(--color-teal-light);
    padding-left: 4px;
}

.footer-contact li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    font-size: 0.88rem;
    color: rgba(247, 250, 250, 0.6);
}

.footer-contact svg {
    width: 18px;
    height: 18px;
    color: var(--color-teal-light);
    flex-shrink: 0;
    margin-top: 2px;
}

.footer-contact a {
    color: rgba(247, 250, 250, 0.6);
    transition: color var(--transition);
}

.footer-contact a:hover {
    color: var(--color-teal-light);
}

.footer-bottom {
    padding-top: 24px;
    text-align: center;
}

.footer-copyright {
    font-size: 0.85rem;
    color: rgba(247, 250, 250, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    flex-wrap: wrap;
}

.icp-link {
    color: rgba(247, 250, 250, 0.6);
    transition: all var(--transition);
    border-bottom: 1px dashed rgba(247, 250, 250, 0.3);
}

.icp-link:hover {
    color: var(--color-teal-light);
    border-bottom-color: var(--color-teal-light);
}

.footer-sep {
    margin: 0 4px;
}

/* ===== 在线咨询浮动通道 ===== */
.consult-float {
    position: fixed;
    right: 24px;
    bottom: 24px;
    z-index: 999;
}

.consult-float-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    padding: 14px 18px;
    background: var(--color-teal);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    box-shadow: var(--shadow-teal);
    transition: all var(--transition);
    position: relative;
}

.consult-float-btn::before {
    content: '';
    position: absolute;
    inset: -4px;
    border-radius: var(--radius-lg);
    background: var(--color-teal);
    opacity: 0.3;
    z-index: -1;
    animation: pulse 2s ease-in-out infinite;
}

.consult-float-btn:hover {
    background: var(--color-teal-dark);
    transform: scale(1.05);
}

.consult-float-btn svg {
    width: 26px;
    height: 26px;
}

.consult-float-text {
    font-size: 0.72rem;
    font-weight: 500;
}

.consult-float-panel {
    position: absolute;
    bottom: 70px;
    right: 0;
    width: 320px;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transform: translateY(12px);
    transition: all var(--transition);
}

.consult-float-panel.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.float-panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    background: var(--color-navy);
    color: var(--color-white);
}

.float-panel-header h4 {
    font-size: 1rem;
    font-weight: 500;
}

.float-panel-close {
    background: none;
    border: none;
    color: var(--color-white);
    font-size: 1.5rem;
    cursor: pointer;
    line-height: 1;
    padding: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity var(--transition);
}

.float-panel-close:hover {
    opacity: 0.7;
}

.float-panel-body {
    padding: 20px;
}

.float-panel-tip {
    font-size: 0.85rem;
    color: var(--color-gray);
    margin-bottom: 16px;
    line-height: 1.6;
}

.float-contact-btn {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--color-warm-white);
    border-radius: var(--radius-md);
    margin-bottom: 10px;
    transition: all var(--transition);
    border: 1px solid transparent;
}

.float-contact-btn:hover {
    background: var(--color-mint);
    border-color: var(--color-mint-deep);
    transform: translateX(4px);
}

.float-contact-btn svg {
    width: 22px;
    height: 22px;
    color: var(--color-teal);
    flex-shrink: 0;
}

.float-contact-btn strong {
    display: block;
    font-size: 0.88rem;
    color: var(--color-navy);
    font-weight: 700;
}

.float-contact-btn span {
    font-size: 0.78rem;
    color: var(--color-gray);
}

.float-contact-form {
    cursor: pointer;
    width: 100%;
}

/* ===== 动画 ===== */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes floatUp {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.3; }
    50% { transform: scale(1.15); opacity: 0; }
}

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
    transition-delay: var(--delay, 0s);
}

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

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
    .hero-title { font-size: 2.8rem; }
    .card-grid { grid-template-columns: repeat(2, 1fr); }
    .qual-grid { grid-template-columns: repeat(2, 1fr); }
    .data-grid { grid-template-columns: 1fr; }
    .footer-top { grid-template-columns: 1fr 1fr; }
    .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 768px) {
    .nav {
        position: fixed;
        top: 72px;
        left: 0;
        width: 100%;
        background: var(--color-white);
        flex-direction: column;
        padding: 20px;
        gap: 4px;
        box-shadow: var(--shadow-lg);
        transform: translateY(-120%);
        transition: transform var(--transition);
        border-top: 1px solid var(--color-border);
    }
    .nav.active { transform: translateY(0); }
    .nav-link { padding: 12px 16px; }
    .nav-cta { display: none; }
    .hamburger { display: flex; }

    .hero { padding: 120px 0 60px; }
    .hero-inner { grid-template-columns: 1fr; gap: 40px; }
    .hero-title { font-size: 2.2rem; }
    .hero-desc { font-size: 1rem; }
    .hero-image { height: 280px; }
    .floating-card-1 { left: 0; top: 10px; }
    .floating-card-2 { right: 0; bottom: 10px; }
    .hero-stats { gap: 16px; }
    .stat-num { font-size: 1.5rem; }

    .section { padding: 60px 0; }
    .section-title { font-size: 1.7rem; }
    .section-header { margin-bottom: 36px; }

    .card-grid { grid-template-columns: 1fr; }
    .medicine-card { grid-template-columns: 1fr; gap: 16px; padding: 24px; }
    .medicine-visual { display: none; }
    .medicine-number { font-size: 1.8rem; }

    .consult-inner { grid-template-columns: 1fr; gap: 36px; }
    .consult-form { padding: 28px 20px; }

    .data-grid { grid-template-columns: 1fr; }
    .data-feature { padding: 24px 20px; }

    .qual-grid { grid-template-columns: 1fr; }

    .tech-service-item { gap: 20px; padding: 28px 0; }
    .ts-index { width: 40px; }
    .ts-num { font-size: 1.2rem; }
    .ts-title { font-size: 1.15rem; }

    .footer-top { grid-template-columns: 1fr; gap: 32px; }
    .footer-brand { grid-column: auto; }

    .consult-float { right: 16px; bottom: 16px; }
    .consult-float-panel { width: calc(100vw - 32px); right: 0; }

    .hero-actions { flex-direction: column; }
    .hero-actions .btn { width: 100%; }
}

@media (max-width: 480px) {
    .hero-title { font-size: 1.8rem; }
    .section-title { font-size: 1.5rem; }
    .hero-stats { flex-wrap: wrap; gap: 12px; }
    .stat-divider { display: none; }
    .floating-card { padding: 10px 14px; }
    .floating-card strong { font-size: 0.78rem; }
    .floating-card span { font-size: 0.68rem; }
}