/* ========================================
   康恩兴动官网 - Design System & Styles
   ======================================== */

/* ---- Design Tokens ---- */
:root {
    /* Colors - Brand Red */
    --color-primary-50: #fef2f2;
    --color-primary-100: #fee2e2;
    --color-primary-200: #fecaca;
    --color-primary-300: #fca5a5;
    --color-primary-400: #f87171;
    --color-primary-500: #ef4444;
    --color-primary-600: #dc2626;
    --color-primary-700: #b91c1c;
    --color-primary-800: #991b1b;
    --color-primary-900: #7f1d1d;
    --color-primary-950: #450a0a;

    /* Colors - Neutral */
    --color-neutral-50: #fafafa;
    --color-neutral-100: #f5f5f5;
    --color-neutral-200: #e5e5e5;
    --color-neutral-300: #d4d4d4;
    --color-neutral-400: #a3a3a3;
    --color-neutral-500: #737373;
    --color-neutral-600: #525252;
    --color-neutral-700: #404040;
    --color-neutral-800: #262626;
    --color-neutral-900: #171717;
    --color-neutral-950: #0a0a0a;

    /* Colors - Gold accent */
    --color-gold-400: #fbbf24;
    --color-gold-500: #f59e0b;

    /* Typography */
    --font-family: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;
    --font-size-6xl: 3.75rem;

    /* Spacing */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-10: 2.5rem;
    --space-12: 3rem;
    --space-16: 4rem;
    --space-20: 5rem;
    --space-24: 6rem;

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 300ms ease;
    --transition-slow: 500ms ease;

    /* Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
}

/* ---- Reset & Base ---- */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--color-neutral-800);
    background-color: #fff;
    overflow-x: hidden;
}

body.xd-home-gray {
    filter: grayscale(1);
}

.xd-copy-disabled body {
    user-select: none;
    -webkit-user-select: none;
}

.xd-watermark-products .product-visual,
.xd-watermark-articles .news-card-img,
.xd-watermark-articles .detail-cover-img,
.xd-watermark-articles .detail-body .article-img {
    position: relative;
}

.xd-watermark-products .product-visual::after,
.xd-watermark-articles .news-card-img::after,
.xd-watermark-articles .detail-cover-img::after,
.xd-watermark-articles .detail-body .article-img::after {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 2;
    pointer-events: none;
    background-image: var(--xd-watermark-image);
    background-repeat: no-repeat;
    background-position: var(--xd-watermark-position, right 16px bottom 16px);
    background-size: var(--xd-watermark-size, auto);
    opacity: 0.7;
}

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

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

ul, ol {
    list-style: none;
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

/* ---- Container ---- */
.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-8);
}

/* ---- Section Content Wrapper ---- */
.section-content {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-8);
}

/* ---- Section ---- */
.section {
    padding: var(--space-24) 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-16);
}

.section-header.light {
    position: relative;
    z-index: 1;
}

.section-tag {
    display: inline-block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-primary-600);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-3);
    padding: var(--space-1) var(--space-3);
    background: var(--color-primary-50);
    border-radius: var(--radius-full);
}

.section-header.light .section-tag {
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
}

.section-title {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: var(--color-neutral-900);
    line-height: 1.2;
    margin-bottom: var(--space-4);
}

.section-header.light .section-title {
    color: #fff;
}

.section-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-neutral-500);
    max-width: 600px;
    margin: 0 auto;
}

.section-header.light .section-subtitle {
    color: rgba(255, 255, 255, 0.7);
}

/* ========================================
   Header / Navbar
   ======================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: 72px;
    display: flex;
    align-items: center;
    transition: all var(--transition-normal);
    background: rgba(255, 255, 255, 0.0);
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 var(--color-neutral-200);
    height: 64px;
}

.header-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-8);
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo */
.logo {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.logo-mark {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--color-primary-600), var(--color-primary-700));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgb(220 38 38 / 0.3);
}

.logo-icon-text {
    color: #fff;
    font-size: var(--font-size-xl);
    font-weight: 800;
}

.logo-text-group {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.logo-name {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: #fff;
    transition: color var(--transition-normal);
}

.header.scrolled .logo-name {
    color: var(--color-neutral-900);
}

.logo-slogan {
    font-size: 10px;
    font-weight: 500;
    letter-spacing: 0.15em;
    color: rgba(255, 255, 255, 0.7);
    transition: color var(--transition-normal);
}

.header.scrolled .logo-slogan {
    color: var(--color-neutral-400);
}

/* Nav Links */
.nav {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.nav-link {
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-sm);
    font-weight: 500;
    color: rgba(255, 255, 255, 0.85);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.nav-link:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.1);
}

.nav-link.active {
    color: #fff;
}

.header.scrolled .nav-link {
    color: var(--color-neutral-600);
}

.header.scrolled .nav-link:hover {
    color: var(--color-primary-600);
    background: var(--color-primary-50);
}

.header.scrolled .nav-link.active {
    color: var(--color-primary-600);
}

/* Header CTA */
.header-cta {
    padding: var(--space-2) var(--space-5);
    background: var(--color-primary-600);
    color: #fff;
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
    box-shadow: 0 2px 8px rgb(220 38 38 / 0.3);
}

.header-cta:hover {
    background: var(--color-primary-700);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgb(220 38 38 / 0.4);
}

/* Mobile Menu Button */
.menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 28px;
    height: 20px;
    justify-content: center;
}

.menu-btn span {
    display: block;
    width: 100%;
    height: 2px;
    background: #fff;
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.header.scrolled .menu-btn span {
    background: var(--color-neutral-700);
}

.menu-btn.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.menu-btn.active span:nth-child(2) {
    opacity: 0;
}

.menu-btn.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Nav */
.mobile-nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    padding: var(--space-4);
    transform: translateY(-120%);
    opacity: 0;
    transition: all var(--transition-normal);
    z-index: 999;
    box-shadow: var(--shadow-lg);
}

.mobile-nav.active {
    transform: translateY(0);
    opacity: 1;
}

.mobile-nav-link {
    display: block;
    padding: var(--space-4);
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--color-neutral-700);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
}

.mobile-nav-link:hover {
    color: var(--color-primary-600);
    background: var(--color-primary-50);
}

/* ========================================
   Hero Section
   ======================================== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 120px var(--space-6) var(--space-16);
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-bg-gradient {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #7f1d1d 0%, #991b1b 25%, #b91c1c 50%, #7f1d1d 100%);
}

.hero-bg-pattern {
    position: absolute;
    inset: 0;
    background-image: radial-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px);
    background-size: 30px 30px;
}

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

.hero-light-1 {
    width: 600px;
    height: 600px;
    background: var(--color-primary-500);
    top: -200px;
    right: -100px;
    animation: float1 8s ease-in-out infinite;
}

.hero-light-2 {
    width: 400px;
    height: 400px;
    background: var(--color-primary-400);
    bottom: -100px;
    left: -50px;
    animation: float2 10s ease-in-out infinite;
}

@keyframes float1 {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(-30px, 30px); }
}

@keyframes float2 {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(20px, -20px); }
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-5);
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-full);
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--font-size-sm);
    font-weight: 500;
    backdrop-filter: blur(10px);
    margin-bottom: var(--space-8);
    animation: fadeInUp 0.8s ease both;
}

.badge-pulse {
    width: 8px;
    height: 8px;
    background: var(--color-gold-400);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(1.5); }
}

.hero-title {
    color: #fff;
    margin-bottom: var(--space-6);
    animation: fadeInUp 0.8s ease 0.15s both;
}

.hero-title-product {
    display: block;
    font-size: var(--font-size-6xl);
    font-weight: 900;
    letter-spacing: 0.05em;
    text-shadow: 0 2px 20px rgb(0 0 0 / 0.2);
    line-height: 1.1;
}

.hero-title-sub {
    display: block;
    font-size: var(--font-size-3xl);
    font-weight: 600;
    margin-top: var(--space-2);
    opacity: 0.9;
}

.hero-title-year {
    display: inline-block;
    font-size: var(--font-size-lg);
    font-weight: 700;
    margin-top: var(--space-4);
    padding: var(--space-1) var(--space-5);
    background: rgba(255, 255, 255, 0.15);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: var(--radius-full);
    letter-spacing: 0.2em;
}

.hero-desc {
    color: rgba(255, 255, 255, 0.8);
    font-size: var(--font-size-lg);
    line-height: 1.8;
    margin-bottom: var(--space-10);
    animation: fadeInUp 0.8s ease 0.3s both;
}

.hero-desc strong {
    color: var(--color-gold-400);
    font-weight: 600;
}

/* Hero Stats */
.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-8);
    margin-bottom: var(--space-10);
    animation: fadeInUp 0.8s ease 0.45s both;
}

.hero-stat {
    text-align: center;
}

.hero-stat-number {
    display: block;
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: #fff;
    line-height: 1;
}

.hero-stat-number small {
    font-size: var(--font-size-lg);
    font-weight: 600;
    opacity: 0.8;
}

.hero-stat-label {
    display: block;
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.6);
    margin-top: var(--space-2);
    font-weight: 500;
}

.hero-stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(255, 255, 255, 0.2);
}

/* Hero Actions */
.hero-actions {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    animation: fadeInUp 0.8s ease 0.6s both;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-8);
    font-size: var(--font-size-base);
    font-weight: 600;
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.btn-primary {
    background: #fff;
    color: var(--color-primary-700);
    box-shadow: 0 4px 14px rgb(0 0 0 / 0.15);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgb(0 0 0 / 0.2);
}

.btn-outline {
    border: 2px solid rgba(255, 255, 255, 0.4);
    color: #fff;
    background: transparent;
}

.btn-outline:hover {
    border-color: rgba(255, 255, 255, 0.8);
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

/* Fade In Up animation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   Strength Section
   ======================================== */
.strength {
    background: var(--color-neutral-50);
}

.strength-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
}

.strength-card {
    background: #fff;
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-neutral-100);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.strength-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary-500), var(--color-primary-600));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-normal);
}

.strength-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    border-color: transparent;
}

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

.strength-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-50);
    color: var(--color-primary-600);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-5);
    transition: all var(--transition-normal);
}

.strength-card:hover .strength-icon {
    background: var(--color-primary-600);
    color: #fff;
    transform: scale(1.1);
}

.strength-card-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-neutral-900);
    margin-bottom: var(--space-3);
}

.strength-card-desc {
    font-size: var(--font-size-sm);
    color: var(--color-neutral-500);
    line-height: 1.7;
}

/* ========================================
   Product Section
   ======================================== */
.product {
    background: #fff;
}

.product-showcase {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-16);
    align-items: center;
}

/* Product Bottle Visual */
.product-visual {
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    min-height: 400px;
}

.product-cover-image {
    display: none;
    position: relative;
    z-index: 2;
    width: min(360px, 82%);
    max-height: 420px;
    object-fit: contain;
    filter: drop-shadow(0 24px 44px rgb(153 27 27 / 0.18));
}

.product-visual.has-cover-image .product-cover-image {
    display: block;
}

.product-visual.has-cover-image .product-bottle {
    opacity: 0;
    visibility: hidden;
    position: absolute;
    pointer-events: none;
}

.product-visual.has-cover-image .product-particles {
    opacity: 0.32;
}

.product-bottle {
    position: relative;
    z-index: 2;
}

.bottle-cap {
    width: 60px;
    height: 20px;
    background: linear-gradient(180deg, var(--color-primary-800), var(--color-primary-700));
    border-radius: 6px 6px 0 0;
    margin: 0 auto;
}

.bottle-neck {
    width: 50px;
    height: 30px;
    background: linear-gradient(180deg, var(--color-primary-700), var(--color-primary-600));
    margin: 0 auto;
    clip-path: polygon(5px 0, calc(100% - 5px) 0, calc(100% + 10px) 100%, -10px 100%);
}

.bottle-body {
    width: 120px;
    height: 260px;
    background: linear-gradient(180deg, var(--color-primary-600), var(--color-primary-700), var(--color-primary-800));
    border-radius: 16px 16px 20px 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    box-shadow: 0 20px 60px rgb(153 27 27 / 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.1);
    position: relative;
    overflow: hidden;
}

.bottle-body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.15), transparent);
    border-radius: 16px 16px 0 0;
}

.bottle-brand {
    font-size: var(--font-size-3xl);
    font-weight: 900;
    color: #fff;
    letter-spacing: 0;
    text-shadow: 0 2px 10px rgb(0 0 0 / 0.2);
}

.bottle-label {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.85);
    font-weight: 500;
    letter-spacing: 0;
}

.bottle-brand,
.bottle-label {
    position: relative;
    z-index: 1;
    max-width: 96px;
    overflow: hidden;
    line-height: 1.18;
    text-align: center;
    overflow-wrap: anywhere;
    word-break: break-word;
    display: -webkit-box;
    -webkit-box-orient: vertical;
}

.bottle-brand {
    -webkit-line-clamp: 2;
}

.bottle-label {
    -webkit-line-clamp: 3;
}

.bottle-shadow {
    width: 100px;
    height: 16px;
    background: radial-gradient(ellipse, rgba(0, 0, 0 / 0.15), transparent);
    margin: var(--space-3) auto 0;
    border-radius: 50%;
}

/* Floating particles */
.product-particles {
    position: absolute;
    inset: 0;
    z-index: 1;
}

.product-particles span {
    position: absolute;
    width: 6px;
    height: 6px;
    background: var(--color-primary-400);
    border-radius: 50%;
    opacity: 0.4;
    animation: particleFloat 4s ease-in-out infinite;
}

.product-particles span:nth-child(1) { left: 10%; top: 20%; animation-delay: 0s; }
.product-particles span:nth-child(2) { left: 80%; top: 30%; animation-delay: 0.5s; width: 4px; height: 4px; }
.product-particles span:nth-child(3) { left: 20%; top: 70%; animation-delay: 1s; width: 8px; height: 8px; }
.product-particles span:nth-child(4) { left: 70%; top: 60%; animation-delay: 1.5s; }
.product-particles span:nth-child(5) { left: 90%; top: 15%; animation-delay: 2s; width: 5px; height: 5px; }
.product-particles span:nth-child(6) { left: 5%; top: 50%; animation-delay: 2.5s; width: 3px; height: 3px; }
.product-particles span:nth-child(7) { left: 50%; top: 85%; animation-delay: 3s; }
.product-particles span:nth-child(8) { left: 40%; top: 10%; animation-delay: 3.5s; width: 4px; height: 4px; }

@keyframes particleFloat {
    0%, 100% { transform: translate(0, 0) scale(1); opacity: 0.4; }
    50% { transform: translate(10px, -15px) scale(1.5); opacity: 0.8; }
}

/* Product Features */
.product-features {
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
}

.product-feature {
    display: flex;
    gap: var(--space-5);
    align-items: flex-start;
    padding: var(--space-6);
    background: var(--color-neutral-50);
    border-radius: var(--radius-xl);
    transition: all var(--transition-normal);
    border: 1px solid transparent;
}

.product-feature:hover {
    background: #fff;
    border-color: var(--color-primary-100);
    box-shadow: var(--shadow-md);
    transform: translateX(8px);
}

.feature-dot {
    flex-shrink: 0;
    width: 12px;
    height: 12px;
    background: var(--color-primary-500);
    border-radius: 50%;
    margin-top: 6px;
    position: relative;
}

.feature-dot::after {
    content: '';
    position: absolute;
    inset: -4px;
    border: 2px solid var(--color-primary-200);
    border-radius: 50%;
}

.product-feature h4 {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-neutral-900);
    margin-bottom: var(--space-1);
}

.product-feature p {
    font-size: var(--font-size-sm);
    color: var(--color-neutral-500);
    line-height: 1.7;
}

/* ========================================
   News & Public Welfare Section
   ======================================== */
.news-public {
    background: #fff;
}

.news-section-label {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    margin-bottom: var(--space-10);
}

.label-line {
    flex: 1;
    max-width: 120px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--color-neutral-300), transparent);
}

.label-text {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-neutral-800);
}

/* News Cards */
.news-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: auto auto;
    gap: var(--space-6);
    margin-bottom: var(--space-16);
    align-items: start;
}

.news-card {
    background: var(--color-neutral-50);
    border-radius: var(--radius-xl);
    overflow: hidden;
    border: 1px solid var(--color-neutral-100);
    transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.news-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.news-card-featured {
    grid-row: span 2;
    align-self: start;
}

.news-card-featured .news-card-img {
    aspect-ratio: 16 / 9;
}

.news-card-featured .news-title {
    font-size: var(--font-size-xl);
}

.news-card-featured .news-excerpt {
    display: -webkit-box;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-card-img {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    overflow: hidden;
    background: #fff7f7;
}

.news-img-placeholder {
    width: 100%;
    height: 100%;
    min-height: 0;
    background:
        linear-gradient(135deg, rgba(255, 255, 255, 0.76), rgba(255, 255, 255, 0.16)),
        radial-gradient(circle at 26% 22%, rgba(255, 255, 255, 0.78) 0 12%, transparent 13%),
        linear-gradient(135deg, #fee2e2 0%, #fff1f2 52%, #fef2f2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(185, 28, 28, 0.42);
    transition: transform var(--transition-slow);
    transform-origin: center;
    box-shadow: inset 0 0 0 1px rgba(185, 28, 28, 0.06);
}

.featured-img {
    background:
        linear-gradient(135deg, rgba(255, 255, 255, 0.62), rgba(255, 255, 255, 0.12)),
        radial-gradient(circle at 28% 18%, rgba(255, 255, 255, 0.72) 0 14%, transparent 15%),
        linear-gradient(135deg, #fecaca 0%, #fee2e2 48%, #fff1f2 100%);
}

.news-img-placeholder img,
.news-card.has-news-image .news-img-placeholder img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
}

.news-card.has-news-image .news-img-placeholder,
.news-img-placeholder:has(img),
.news-img-placeholder[style*="background-image"] {
    background-color: var(--color-neutral-100);
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center;
    color: transparent;
    box-shadow: none;
}

.news-card.has-news-image .news-img-placeholder svg,
.news-img-placeholder:has(img) svg,
.news-img-placeholder[style*="background-image"] svg {
    display: none;
}

.news-card:hover .news-img-placeholder {
    transform: scale(1.05);
}

.news-badge {
    position: absolute;
    top: var(--space-4);
    left: var(--space-4);
    padding: var(--space-1) var(--space-3);
    background: var(--color-primary-600);
    color: #fff;
    font-size: var(--font-size-xs);
    font-weight: 600;
    border-radius: var(--radius-sm);
}

.news-card-body {
    padding: var(--space-6);
    display: flex;
    flex-direction: column;
    flex: 1;
}

.news-meta {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
}

.news-date {
    font-size: var(--font-size-xs);
    color: var(--color-neutral-400);
}

.news-category {
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--color-primary-600);
    background: var(--color-primary-50);
    padding: 2px var(--space-2);
    border-radius: var(--radius-sm);
}

.news-title {
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-neutral-900);
    margin-bottom: var(--space-3);
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-excerpt {
    font-size: var(--font-size-sm);
    color: var(--color-neutral-500);
    line-height: 1.7;
    margin-bottom: var(--space-4);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.news-read-more {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-primary-600);
    transition: color var(--transition-fast), transform var(--transition-fast);
    align-self: flex-start;
    display: inline-block;
}

.news-read-more:hover {
    color: var(--color-primary-700);
    transform: translateX(4px);
}

/* Activity Cards */
.activity-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
}

.activity-card {
    background: var(--color-neutral-50);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    border: 1px solid var(--color-neutral-100);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.activity-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary-400), var(--color-gold-400));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-normal);
}

.activity-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
    background: #fff;
}

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

.activity-icon-wrap {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary-50), #fef3c7);
    color: var(--color-primary-600);
    border-radius: var(--radius-lg);
    margin-bottom: var(--space-4);
}

.activity-date-badge {
    margin-bottom: var(--space-4);
}

.activity-month {
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--color-neutral-400);
    letter-spacing: 0.05em;
}

.activity-title {
    font-size: var(--font-size-base);
    font-weight: 700;
    color: var(--color-neutral-900);
    margin-bottom: var(--space-3);
    line-height: 1.4;
}

.activity-desc {
    font-size: var(--font-size-sm);
    color: var(--color-neutral-500);
    line-height: 1.7;
    margin-bottom: var(--space-4);
}

.activity-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.activity-tag {
    font-size: 11px;
    font-weight: 500;
    color: var(--color-primary-600);
    background: var(--color-primary-50);
    padding: 2px var(--space-2);
    border-radius: var(--radius-sm);
}

/* ========================================
   Honors Section
   ======================================== */
.honors {
    background: var(--color-neutral-50);
}

.honors-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
}

.honor-card {
    background: #fff;
    padding: var(--space-8) var(--space-6);
    border-radius: var(--radius-xl);
    text-align: center;
    border: 1px solid var(--color-neutral-100);
    transition: all var(--transition-normal);
}

.honor-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-xl);
    border-color: transparent;
}

.honor-icon {
    width: 72px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary-50), var(--color-primary-100));
    color: var(--color-primary-600);
    border-radius: 50%;
    margin: 0 auto var(--space-5);
    transition: all var(--transition-normal);
}

.honor-card:hover .honor-icon {
    background: linear-gradient(135deg, var(--color-primary-600), var(--color-primary-700));
    color: #fff;
    transform: scale(1.1);
    box-shadow: 0 8px 20px rgb(220 38 38 / 0.3);
}

.honor-title {
    font-size: var(--font-size-base);
    font-weight: 700;
    color: var(--color-neutral-900);
    margin-bottom: var(--space-3);
}

.honor-desc {
    font-size: var(--font-size-sm);
    color: var(--color-neutral-500);
    line-height: 1.7;
}

/* ========================================
   Public Welfare Section
   ======================================== */
.public-welfare {
    padding: 0;
    overflow: hidden;
}

.public-bg {
    position: absolute;
    inset: 0;
}

.public-gradient {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--color-primary-900) 0%, var(--color-primary-800) 40%, var(--color-primary-700) 100%);
}

.public-content {
    position: relative;
    padding: var(--space-24) 0;
    z-index: 1;
}

.public-cards {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--space-8);
}

.public-card {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
}

.public-card:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.25);
    transform: translateY(-4px);
}

.public-card-num {
    font-size: var(--font-size-5xl);
    font-weight: 900;
    color: rgba(255, 255, 255, 0.1);
    line-height: 1;
    margin-bottom: var(--space-4);
}

.public-card-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: #fff;
    margin-bottom: var(--space-3);
}

.public-card-desc {
    font-size: var(--font-size-sm);
    color: rgba(255, 255, 255, 0.65);
    line-height: 1.8;
}

/* ========================================
   Reviews Section
   ======================================== */
.reviews {
    background: #fff;
}

.reviews-slider {
    max-width: 100%;
    overflow: hidden;
}

.reviews-track {
    display: flex;
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.review-card {
    flex: 0 0 calc(33.333% - var(--space-4));
    margin: 0 var(--space-2);
    background: var(--color-neutral-50);
    border-radius: var(--radius-xl);
    padding: var(--space-8);
    border: 1px solid var(--color-neutral-100);
    transition: all var(--transition-normal);
}

.review-card:hover {
    background: #fff;
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.review-stars {
    color: var(--color-gold-500);
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-4);
    letter-spacing: 2px;
}

.review-text {
    font-size: var(--font-size-base);
    color: var(--color-neutral-700);
    line-height: 1.8;
    margin-bottom: var(--space-6);
    font-style: italic;
}

.review-author {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.review-avatar {
    width: 44px;
    height: 44px;
    background: linear-gradient(135deg, var(--color-primary-500), var(--color-primary-600));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-base);
    font-weight: 700;
    border-radius: 50%;
}

.review-name {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-neutral-900);
}

.review-role {
    font-size: var(--font-size-xs);
    color: var(--color-neutral-400);
}

/* Reviews Nav */
.reviews-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    margin-top: var(--space-8);
}

.reviews-btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--color-neutral-200);
    border-radius: 50%;
    color: var(--color-neutral-600);
    transition: all var(--transition-fast);
}

.reviews-btn:hover {
    border-color: var(--color-primary-500);
    color: var(--color-primary-600);
    background: var(--color-primary-50);
}

.reviews-dots {
    display: flex;
    gap: var(--space-2);
}

.reviews-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--color-neutral-300);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.reviews-dot.active {
    width: 24px;
    border-radius: 4px;
    background: var(--color-primary-500);
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: var(--color-neutral-900);
    color: var(--color-neutral-400);
}

.footer-top {
    padding: var(--space-16) 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.5fr;
    gap: var(--space-12);
}

.footer-brand {
    max-width: 300px;
}

.footer-logo .logo-name {
    color: #fff;
}

.footer-logo .logo-slogan {
    color: var(--color-neutral-500);
}

.footer-brand-desc {
    margin-top: var(--space-4);
    font-size: var(--font-size-sm);
    line-height: 1.7;
    color: var(--color-neutral-400);
}

.footer-links-title {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: #fff;
    margin-bottom: var(--space-5);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.footer-link {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--color-neutral-400);
    padding: var(--space-2) 0;
    transition: all var(--transition-fast);
}

.footer-link:hover {
    color: #fff;
    transform: translateX(4px);
}

.footer-contact-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--font-size-sm);
    padding: var(--space-2) 0;
    color: var(--color-neutral-400);
}

.footer-contact-item svg {
    flex-shrink: 0;
    color: var(--color-primary-400);
}

.footer-qr {
    margin-top: var(--space-5);
}

.qr-placeholder {
    width: 100px;
    height: 100px;
    display: flex;
    position: relative;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    overflow: hidden;
    background: var(--color-neutral-800);
    border-radius: var(--radius-lg);
    color: var(--color-neutral-500);
    font-size: 10px;
}

.qr-placeholder svg {
    color: var(--color-neutral-500);
}

.qr-placeholder.has-qr-image svg,
.qr-placeholder.has-qr-image span {
    opacity: 0;
}

.footer-qr-image {
    position: absolute;
    inset: 0;
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.footer-bottom {
    border-top: 1px solid var(--color-neutral-800);
    padding: var(--space-5) 0;
}

.footer-bottom-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: var(--font-size-sm);
}

.footer-bottom-links {
    display: flex;
    gap: var(--space-6);
}

.footer-bottom-links a:hover {
    color: #fff;
}

/* ========================================
   Back to Top
   ======================================== */
.back-to-top {
    position: fixed;
    bottom: var(--space-8);
    right: var(--space-8);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-600);
    color: #fff;
    border-radius: 50%;
    box-shadow: 0 4px 14px rgb(220 38 38 / 0.3);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-normal);
    z-index: 100;
}

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

.back-to-top:hover {
    background: var(--color-primary-700);
    transform: translateY(-2px);
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 1024px) {
    .nav {
        display: none;
    }

    .header-cta {
        display: none;
    }

    .menu-btn {
        display: flex;
    }

    .strength-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .product-showcase {
        grid-template-columns: 1fr;
        gap: var(--space-10);
    }

    .product-visual {
        min-height: 300px;
    }

    .product-cover-image {
        width: min(320px, 78%);
        max-height: 340px;
    }

    .honors-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: var(--space-8);
    }

    .review-card {
        flex: 0 0 calc(50% - var(--space-4));
    }

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

    .news-card-featured {
        grid-row: span 1;
    }

    .activity-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .section {
        padding: var(--space-16) 0;
    }

    .hero {
        padding: 100px var(--space-4) var(--space-12);
    }

    .hero-title-product {
        font-size: var(--font-size-4xl);
    }

    .hero-title-sub {
        font-size: var(--font-size-2xl);
    }

    .hero-desc {
        font-size: var(--font-size-base);
    }

    .hero-desc br {
        display: none;
    }

    .hero-stats {
        gap: var(--space-5);
    }

    .hero-stat-number {
        font-size: var(--font-size-3xl);
    }

    .hero-actions {
        flex-direction: column;
    }

    .btn {
        justify-content: center;
        width: 100%;
    }

    .section-title {
        font-size: var(--font-size-3xl);
    }

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

    .product-visual {
        min-height: 260px;
    }

    .product-cover-image {
        width: min(280px, 76%);
        max-height: 280px;
    }

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

    .public-cards {
        grid-template-columns: 1fr;
        padding: 0 var(--space-6);
    }

    .review-card {
        flex: 0 0 calc(100% - var(--space-4));
    }

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

    .news-card-featured {
        grid-row: span 1;
    }

    .news-card-img {
        aspect-ratio: 16 / 9;
    }

    .news-card-featured .news-card-img {
        aspect-ratio: 16 / 9;
    }

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

    .footer-grid {
        grid-template-columns: 1fr;
        gap: var(--space-8);
    }

    .footer-brand {
        max-width: 100%;
    }

    .footer-bottom-inner {
        flex-direction: column;
        gap: var(--space-3);
        text-align: center;
    }

    .footer-bottom-links {
        flex-wrap: wrap;
        justify-content: center;
    }

    .hero-stat-divider {
        height: 30px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--space-4);
    }

    .section-content {
        padding: 0 var(--space-4);
    }

    .hero-title-product {
        font-size: var(--font-size-3xl);
    }

    .hero-title-sub {
        font-size: var(--font-size-xl);
    }

    .strength-card {
        padding: var(--space-6);
    }

    .product-visual {
        min-height: 230px;
    }

    .product-cover-image {
        width: min(240px, 74%);
        max-height: 240px;
    }

    .honor-card {
        padding: var(--space-6);
    }

    .public-card {
        padding: var(--space-6);
    }

    .review-card {
        padding: var(--space-6);
    }
}