/* ========================================
   科达环保设备厂 - 自定义样式 v2.1
   现代环保主题 · 玻璃态 · 渐变 · 多层阴影
   ======================================== */

@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+SC:wght@300;400;500;600;700;800;900&display=swap');

:root {
    --kd-primary: #16a34a;
    --kd-primary-dark: #15803d;
    --kd-primary-darker: #14532d;
    --kd-primary-light: #22c55e;
    --kd-primary-lighter: #4ade80;
    --kd-secondary: #0d5a2e;
    --kd-accent: #f59e0b;
    --kd-accent-dark: #d97706;
    --kd-accent-light: #fbbf24;
    --kd-sky: #0ea5e9;
    --kd-bg-light: #f0fdf4;
    --kd-bg-gray: #f8fafb;
    --kd-bg-cream: #fefce8;
    --kd-text: #1e293b;
    --kd-text-light: #64748b;
    --kd-text-lighter: #94a3b8;
    --kd-border: #e2e8f0;
    --kd-shadow: 0 2px 8px rgba(0,0,0,0.06), 0 4px 16px rgba(0,0,0,0.08);
    --kd-shadow-md: 0 4px 12px rgba(0,0,0,0.08), 0 8px 28px rgba(0,0,0,0.10);
    --kd-shadow-lg: 0 8px 20px rgba(0,0,0,0.10), 0 16px 48px rgba(0,0,0,0.12);
    --kd-shadow-hover: 0 12px 32px rgba(22, 163, 74, 0.15), 0 20px 60px rgba(22, 163, 74, 0.12);
    --kd-shadow-green: 0 10px 30px rgba(22, 163, 74, 0.25), 0 20px 60px rgba(22, 163, 74, 0.15);
    --kd-radius: 16px;
    --kd-radius-sm: 10px;
    --kd-radius-lg: 24px;
    --kd-transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    --kd-gradient-green: linear-gradient(135deg, #16a34a 0%, #15803d 100%);
    --kd-gradient-green-light: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
    --kd-gradient-accent: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    --kd-gradient-sky: linear-gradient(135deg, #0ea5e9 0%, #0284c7 100%);
    --kd-gradient-mesh: radial-gradient(at 0% 0%, rgba(22,163,74,0.08) 0px, transparent 50%),
                        radial-gradient(at 100% 0%, rgba(14,165,233,0.06) 0px, transparent 50%),
                        radial-gradient(at 50% 100%, rgba(245,158,11,0.05) 0px, transparent 50%);
}

/* ==================== 基础重置 ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: 'Noto Sans SC', 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    color: var(--kd-text);
    line-height: 1.75;
    overflow-x: hidden;
    background: #f1f5f9;
    background-image:
        radial-gradient(at 0% 0%, rgba(22,163,74,0.04) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(14,165,233,0.03) 0px, transparent 50%);
    background-attachment: fixed;
}

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

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

::selection {
    background: var(--kd-primary);
    color: #fff;
}

/* 自定义滚动条 */
::-webkit-scrollbar {
    width: 10px;
}
::-webkit-scrollbar-track {
    background: #f1f5f9;
}
::-webkit-scrollbar-thumb {
    background: var(--kd-primary);
    border-radius: 5px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--kd-primary-dark);
}

/* ==================== 顶部信息栏 ==================== */
.top-bar {
    background: var(--kd-primary-darker);
    color: #bbf7d0;
    font-size: 0.85rem;
    padding: 8px 0;
    position: relative;
    z-index: 1001;
}

.top-bar a {
    color: #bbf7d0;
}

.top-bar a:hover {
    color: #fff;
}

.top-bar-divider {
    display: inline-block;
    width: 1px;
    height: 12px;
    background: rgba(255,255,255,0.2);
    margin: 0 12px;
    vertical-align: middle;
}

.top-bar-social a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    margin-left: 6px;
    font-size: 0.8rem;
    transition: var(--kd-transition);
}

.top-bar-social a:hover {
    background: var(--kd-accent);
    color: #fff;
    transform: translateY(-2px);
}

/* ==================== 导航栏 ==================== */
.main-nav {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 1px 3px rgba(0,0,0,0.08), 0 4px 24px rgba(0,0,0,0.06);
    padding: 8px 0;
    border-bottom: 1px solid rgba(22, 163, 74, 0.1);
    transition: var(--kd-transition);
}

.main-nav.scrolled {
    padding: 4px 0;
    box-shadow: 0 4px 12px rgba(0,0,0,0.08), 0 8px 32px rgba(0,0,0,0.10);
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.brand-logo {
    width: 50px;
    height: 50px;
    background: var(--kd-gradient-green);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    color: #fff;
    box-shadow: 0 8px 20px -6px rgba(22, 163, 74, 0.4);
    position: relative;
    overflow: hidden;
    transition: var(--kd-transition);
}

.brand-logo::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.3) 0%, transparent 50%);
}

.brand-logo::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent 30%, rgba(255,255,255,0.2) 50%, transparent 70%);
    transform: rotate(45deg) translateX(-100%);
    transition: transform 0.6s ease;
}

.navbar-brand:hover .brand-logo {
    transform: scale(1.05) rotate(-5deg);
    box-shadow: 0 12px 28px -6px rgba(22, 163, 74, 0.5);
}

.navbar-brand:hover .brand-logo::after {
    transform: rotate(45deg) translateX(100%);
}

.brand-name {
    font-size: 1.35rem;
    font-weight: 800;
    line-height: 1.2;
    color: var(--kd-primary-darker);
    letter-spacing: 0.5px;
}

.brand-sub {
    font-size: 0.7rem;
    color: var(--kd-text-light);
    letter-spacing: 2px;
    font-weight: 500;
    text-transform: uppercase;
}

.main-nav .nav-link {
    color: var(--kd-text) !important;
    font-size: 0.98rem;
    font-weight: 600;
    padding: 10px 20px !important;
    border-radius: 10px;
    position: relative;
    transition: var(--kd-transition);
}

.main-nav .nav-link::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    width: 0;
    height: 3px;
    background: var(--kd-gradient-green);
    border-radius: 3px;
    transform: translateX(-50%);
    transition: width 0.3s ease;
}

.main-nav .nav-link:hover,
.main-nav .nav-link.active {
    color: var(--kd-primary) !important;
    background: var(--kd-bg-light);
}

.main-nav .nav-link:hover::after,
.main-nav .nav-link.active::after {
    width: 24px;
}

.btn-call {
    background: var(--kd-gradient-green);
    color: #fff;
    font-weight: 700;
    padding: 10px 24px;
    border-radius: 50px;
    border: none;
    transition: var(--kd-transition);
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    box-shadow: 0 6px 20px -4px rgba(22, 163, 74, 0.4);
    position: relative;
    overflow: hidden;
}

.btn-call::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.2) 0%, transparent 50%);
}

.btn-call:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px -4px rgba(22, 163, 74, 0.5);
    color: #fff;
}

.btn-call i {
    animation: phoneRing 2s ease-in-out infinite;
}

@keyframes phoneRing {
    0%, 100% { transform: rotate(0); }
    10%, 30% { transform: rotate(-12deg); }
    20%, 40% { transform: rotate(12deg); }
    50% { transform: rotate(0); }
}

/* ==================== Hero 轮播 ==================== */
.hero-carousel {
    margin-top: 0;
}

.hero-carousel .carousel-item {
    height: 560px;
    position: relative;
    overflow: hidden;
}

.hero-slide-1 {
    background: linear-gradient(135deg, #14532d 0%, #16a34a 40%, #22c55e 100%);
}

.hero-slide-2 {
    background: linear-gradient(135deg, #0c4a6e 0%, #0ea5e9 40%, #38bdf8 100%);
}

.hero-slide-3 {
    background: linear-gradient(135deg, #14532d 0%, #15803d 40%, #4ade80 100%);
}

/* 装饰性背景图案 */
.hero-carousel .carousel-item::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(255,255,255,0.08) 0%, transparent 40%),
        radial-gradient(circle at 80% 20%, rgba(255,255,255,0.06) 0%, transparent 40%),
        radial-gradient(circle at 50% 50%, rgba(255,255,255,0.04) 0%, transparent 30%);
}

.hero-carousel .carousel-item::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='80' height='80' viewBox='0 0 80 80'%3E%3Ccircle cx='40' cy='40' r='1.5' fill='rgba(255,255,255,0.08)'/%3E%3C/svg%3E");
    opacity: 0.5;
}

/* 浮动装饰圆 */
.hero-decoration {
    position: absolute;
    border-radius: 50%;
    background: rgba(255,255,255,0.06);
    backdrop-filter: blur(4px);
    animation: floatDecor 8s ease-in-out infinite;
}

.hero-decoration:nth-child(1) {
    width: 300px; height: 300px;
    top: -100px; right: -80px;
    animation-delay: 0s;
}

.hero-decoration:nth-child(2) {
    width: 200px; height: 200px;
    bottom: -50px; left: 10%;
    animation-delay: 2s;
}

.hero-decoration:nth-child(3) {
    width: 120px; height: 120px;
    top: 40%; right: 30%;
    animation-delay: 4s;
}

@keyframes floatDecor {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-30px) scale(1.05); }
}

.hero-content {
    position: relative;
    z-index: 2;
    color: #fff;
    padding: 60px 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
    height: 100%;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.25);
    padding: 8px 20px;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    width: fit-content;
    animation: fadeInUp 0.8s ease;
}

.hero-badge .dot {
    width: 8px;
    height: 8px;
    background: #4ade80;
    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(1.3); }
}

.hero-title {
    font-size: 3.2rem;
    font-weight: 900;
    margin-bottom: 1rem;
    text-shadow: 0 4px 20px rgba(0,0,0,0.2);
    animation: fadeInUp 0.8s ease;
    line-height: 1.2;
    letter-spacing: -0.5px;
}

.hero-title .highlight {
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    max-width: 620px;
    animation: fadeInUp 1s ease 0.2s both;
    line-height: 1.7;
}

.hero-buttons {
    animation: fadeInUp 1s ease 0.4s both;
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.hero-buttons .btn {
    padding: 14px 36px;
    font-size: 1.05rem;
    font-weight: 700;
    border-radius: 50px;
    transition: var(--kd-transition);
}

.hero-buttons .btn-primary {
    background: var(--kd-gradient-accent);
    border: none;
    box-shadow: 0 8px 25px -5px rgba(245, 158, 11, 0.5);
}

.hero-buttons .btn-primary:hover {
    transform: translateY(-3px) scale(1.03);
    box-shadow: 0 12px 35px -5px rgba(245, 158, 11, 0.6);
}

.hero-buttons .btn-outline-light {
    border: 2px solid rgba(255,255,255,0.4);
    background: rgba(255,255,255,0.08);
    backdrop-filter: blur(10px);
}

.hero-buttons .btn-outline-light:hover {
    background: rgba(255,255,255,0.2);
    border-color: rgba(255,255,255,0.6);
    transform: translateY(-3px);
}

.hero-stats {
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.15);
    border-radius: var(--kd-radius-lg);
    padding: 24px 30px;
    margin-top: 2.5rem;
    animation: fadeInUp 1s ease 0.6s both;
}

.hero-stat-item {
    text-align: center;
    position: relative;
}

.hero-stat-item:not(:last-child)::after {
    content: '';
    position: absolute;
    right: 0;
    top: 15%;
    height: 70%;
    width: 1px;
    background: rgba(255,255,255,0.2);
}

.hero-stat-num {
    font-size: 2.4rem;
    font-weight: 900;
    background: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.1;
}

.hero-stat-label {
    font-size: 0.85rem;
    opacity: 0.9;
    font-weight: 500;
}

/* 轮播控制 */
.hero-carousel .carousel-control-prev,
.hero-carousel .carousel-control-next {
    width: 60px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.hero-carousel:hover .carousel-control-prev,
.hero-carousel:hover .carousel-control-next {
    opacity: 0.8;
}

.hero-carousel .carousel-indicators {
    bottom: 20px;
}

.hero-carousel .carousel-indicators button {
    width: 30px;
    height: 4px;
    border-radius: 4px;
    background: rgba(255,255,255,0.4);
    border: none;
    transition: var(--kd-transition);
}

.hero-carousel .carousel-indicators .active {
    background: #fff;
    width: 50px;
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(40px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ==================== 波浪分割线 ==================== */
.wave-divider {
    position: relative;
    width: 100%;
    overflow: hidden;
    line-height: 0;
}

.wave-divider svg {
    display: block;
    width: 100%;
    height: 60px;
}

.wave-divider.flip {
    transform: rotate(180deg);
}

/* ==================== 通用区块 ==================== */
.section {
    padding: 80px 0;
    position: relative;
}

.section-white {
    background: #ffffff;
}

.section-light {
    background: #ecfdf5;
    background-image: linear-gradient(180deg, #ecfdf5 0%, #f0fdf4 100%);
}

.section-gray {
    background: #ffffff;
}

.section-gradient {
    background: #f8fafc;
    background-image:
        radial-gradient(at 0% 0%, rgba(22,163,74,0.06) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(14,165,233,0.05) 0px, transparent 50%),
        radial-gradient(at 50% 100%, rgba(245,158,11,0.04) 0px, transparent 50%);
}

.section-title {
    text-align: center;
    margin-bottom: 56px;
}

.section-title .badge-text {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--kd-primary);
    text-transform: uppercase;
    letter-spacing: 3px;
    margin-bottom: 12px;
    padding: 4px 16px;
    background: var(--kd-bg-light);
    border-radius: 50px;
}

.section-title h2 {
    font-size: 2.2rem;
    font-weight: 800;
    color: var(--kd-text);
    margin-bottom: 0.5rem;
    position: relative;
    display: inline-block;
    letter-spacing: -0.5px;
}

.section-title h2::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background: var(--kd-gradient-green);
    border-radius: 4px;
    margin: 12px auto 0;
}

.section-title p {
    color: var(--kd-text-light);
    font-size: 1.05rem;
    margin-top: 8px;
}

/* ==================== 关于我们简介 ==================== */
.about-intro {
    display: flex;
    align-items: center;
}

.about-intro-text .badge-text {
    display: inline-block;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--kd-primary);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 12px;
}

.about-intro-text h2 {
    font-size: 2rem;
    font-weight: 800;
    color: var(--kd-primary-darker);
    margin-bottom: 1rem;
    line-height: 1.3;
}

.about-intro-text p {
    color: var(--kd-text-light);
    margin-bottom: 1rem;
    line-height: 1.9;
    font-size: 0.98rem;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-top: 1.5rem;
}

.about-feature-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    background: #fff;
    border-radius: var(--kd-radius-sm);
    border: 1px solid var(--kd-border);
    transition: var(--kd-transition);
    box-shadow: 0 1px 4px rgba(0,0,0,0.04);
}

.about-feature-item:hover {
    border-color: var(--kd-primary-light);
    transform: translateX(6px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.08), 0 8px 24px rgba(22,163,74,0.08);
}

.about-feature-item i {
    width: 40px;
    height: 40px;
    background: var(--kd-gradient-green-light);
    color: #fff;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: 1.1rem;
}

.about-feature-item span {
    font-weight: 600;
    color: var(--kd-text);
    font-size: 0.95rem;
}

.about-visual {
    background: var(--kd-gradient-green);
    border-radius: var(--kd-radius-lg);
    padding: 48px 40px;
    color: #fff;
    position: relative;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(22, 163, 74, 0.25), 0 20px 60px rgba(22, 163, 74, 0.15);
}

.about-visual::before {
    content: '';
    position: absolute;
    top: -60%;
    right: -60%;
    width: 250%;
    height: 250%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 60%);
    animation: rotateBg 20s linear infinite;
}

.about-visual::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -30%;
    width: 150%;
    height: 150%;
    background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 50%);
}

@keyframes rotateBg {
    from { transform: rotate(0); }
    to { transform: rotate(360deg); }
}

.about-visual > * {
    position: relative;
    z-index: 1;
}

.about-visual-icon {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    opacity: 0.95;
    display: inline-flex;
    width: 80px;
    height: 80px;
    align-items: center;
    justify-content: center;
    background: rgba(255,255,255,0.15);
    border-radius: 20px;
    backdrop-filter: blur(10px);
}

.about-visual h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.about-visual p {
    opacity: 0.9;
    font-size: 0.98rem;
    line-height: 1.8;
}

.about-visual .btn-outline-light {
    border: 2px solid rgba(255,255,255,0.3);
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    border-radius: 50px;
    padding: 8px 24px;
    font-weight: 600;
}

.about-visual .btn-outline-light:hover {
    background: rgba(255,255,255,0.25);
    border-color: rgba(255,255,255,0.5);
    transform: translateY(-2px);
}

/* ==================== 产品卡片 ==================== */
.product-card {
    background: #fff;
    border-radius: var(--kd-radius);
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06), 0 4px 20px rgba(0,0,0,0.08);
    transition: var(--kd-transition);
    height: 100%;
    border: 1px solid rgba(226, 232, 240, 0.6);
    position: relative;
}

.product-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--kd-gradient-green);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.4s ease;
    z-index: 2;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 12px 32px rgba(22, 163, 74, 0.15), 0 20px 60px rgba(22, 163, 74, 0.12);
    border-color: transparent;
}

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

.product-img {
    height: 210px;
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 50%, #bbf7d0 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.product-img::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='40' height='40' viewBox='0 0 40 40'%3E%3Ccircle cx='20' cy='20' r='1' fill='%2316a34a' fill-opacity='0.08'/%3E%3C/svg%3E");
}

.product-img i {
    font-size: 4.5rem;
    background: var(--kd-gradient-green);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: var(--kd-transition);
    position: relative;
    z-index: 1;
}

.product-card:hover .product-img i {
    transform: scale(1.2) rotate(5deg);
}

.product-category-tag {
    position: absolute;
    top: 12px;
    left: 12px;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    color: var(--kd-primary);
    font-size: 0.72rem;
    padding: 4px 14px;
    border-radius: 50px;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    z-index: 2;
}

.product-body {
    padding: 22px;
}

.product-body h5 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--kd-text);
}

.product-body h5 a {
    color: inherit;
}

.product-body h5 a:hover {
    color: var(--kd-primary);
}

.product-body p {
    font-size: 0.88rem;
    color: var(--kd-text-light);
    line-height: 1.65;
    margin-bottom: 1rem;
}

.product-link {
    color: var(--kd-primary);
    font-weight: 600;
    font-size: 0.88rem;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: var(--kd-transition);
}

.product-link:hover {
    color: var(--kd-primary-dark);
    gap: 8px;
}

/* ==================== 分类筛选 ==================== */
.category-filter {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-bottom: 44px;
}

.category-filter a {
    padding: 10px 26px;
    border-radius: 50px;
    background: #fff;
    border: 2px solid var(--kd-border);
    color: var(--kd-text);
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--kd-transition);
}

.category-filter a:hover,
.category-filter a.active {
    background: var(--kd-gradient-green);
    border-color: transparent;
    color: #fff;
    box-shadow: 0 6px 18px -4px rgba(22,163,74,0.35);
    transform: translateY(-2px);
}

/* ==================== 新闻卡片 ==================== */
.news-card {
    background: #fff;
    border-radius: var(--kd-radius);
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06), 0 4px 20px rgba(0,0,0,0.08);
    transition: var(--kd-transition);
    height: 100%;
    border: 1px solid rgba(226, 232, 240, 0.6);
    position: relative;
}

.news-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 32px rgba(22, 163, 74, 0.12), 0 20px 60px rgba(0, 0, 0, 0.10);
}

.news-img {
    height: 180px;
    background: linear-gradient(135deg, #e0f2fe 0%, #bae6fd 50%, #7dd3fc 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.news-img::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='40' height='40' viewBox='0 0 40 40'%3E%3Ccircle cx='20' cy='20' r='1' fill='%230ea5e9' fill-opacity='0.08'/%3E%3C/svg%3E");
}

.news-img i {
    font-size: 3rem;
    background: var(--kd-gradient-sky);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    transition: var(--kd-transition);
    position: relative;
    z-index: 1;
}

.news-card:hover .news-img i {
    transform: scale(1.15);
}

.news-category-tag {
    position: absolute;
    top: 12px;
    right: 12px;
    background: var(--kd-gradient-accent);
    color: #fff;
    font-size: 0.72rem;
    padding: 4px 14px;
    border-radius: 50px;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(245,158,11,0.3);
    z-index: 2;
}

.news-body {
    padding: 22px;
}

.news-body h5 {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    line-height: 1.4;
}

.news-body h5 a {
    color: var(--kd-text);
}

.news-body h5 a:hover {
    color: var(--kd-primary);
}

.news-body p {
    font-size: 0.88rem;
    color: var(--kd-text-light);
    line-height: 1.65;
}

.news-meta {
    font-size: 0.8rem;
    color: var(--kd-text-lighter);
    margin-top: 0.85rem;
    border-top: 1px solid var(--kd-border);
    padding-top: 0.85rem;
    display: flex;
    align-items: center;
    gap: 16px;
}

.news-meta i {
    margin-right: 4px;
}

/* ==================== 联系页面 ==================== */
.contact-info-card {
    background: #fff;
    border-radius: var(--kd-radius);
    padding: 36px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06), 0 8px 32px rgba(0,0,0,0.08);
    border: 1px solid rgba(226, 232, 240, 0.6);
}

.contact-info-item {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    margin-bottom: 28px;
    transition: var(--kd-transition);
}

.contact-info-item:last-child {
    margin-bottom: 0;
}

.contact-info-item:hover {
    transform: translateX(6px);
}

.contact-info-icon {
    width: 52px;
    height: 52px;
    background: var(--kd-gradient-green-light);
    color: #fff;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.35rem;
    flex-shrink: 0;
    box-shadow: 0 6px 16px -4px rgba(22,163,74,0.35);
}

.contact-info-item h6 {
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: var(--kd-text);
}

.contact-info-item p {
    color: var(--kd-text-light);
    margin-bottom: 0;
    font-size: 0.95rem;
}

.contact-form-card {
    background: #fff;
    border-radius: var(--kd-radius);
    padding: 40px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06), 0 8px 32px rgba(0,0,0,0.08);
    border: 1px solid rgba(226, 232, 240, 0.6);
}

.contact-form-card .form-control {
    border-radius: var(--kd-radius-sm);
    padding: 14px 18px;
    border: 2px solid var(--kd-border);
    transition: var(--kd-transition);
    font-size: 0.95rem;
}

.contact-form-card .form-control:focus {
    border-color: var(--kd-primary);
    box-shadow: 0 0 0 4px rgba(22, 163, 74, 0.08);
}

.contact-form-card .form-label {
    font-weight: 600;
    color: var(--kd-text);
    margin-bottom: 6px;
}

.contact-form-card .btn-primary {
    background: var(--kd-gradient-green);
    border: none;
    padding: 14px 44px;
    font-weight: 700;
    border-radius: 50px;
    box-shadow: 0 8px 25px -5px rgba(22,163,74,0.35);
}

.contact-form-card .btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px -5px rgba(22,163,74,0.45);
}

/* ==================== 页面横幅 ==================== */
.page-banner {
    height: 280px;
    position: relative;
    overflow: hidden;
    display: flex;
    align-items: center;
    background: var(--kd-gradient-green);
}

.page-banner::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(255,255,255,0.08) 0%, transparent 40%),
        radial-gradient(circle at 80% 20%, rgba(255,255,255,0.06) 0%, transparent 40%);
}

.page-banner::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='80' height='80' viewBox='0 0 80 80'%3E%3Ccircle cx='40' cy='40' r='1.5' fill='rgba(255,255,255,0.08)'/%3E%3C/svg%3E");
    opacity: 0.4;
}

.page-banner .container {
    position: relative;
    z-index: 2;
}

.page-banner h1 {
    font-size: 2.5rem;
    font-weight: 900;
    color: #fff;
    text-shadow: 0 4px 20px rgba(0,0,0,0.2);
    margin-bottom: 0.5rem;
}

.page-banner p {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.9);
}

/* ==================== 产品详情页 ==================== */
.product-detail-img {
    background: linear-gradient(135deg, #f0fdf4 0%, #dcfce7 50%, #bbf7d0 100%);
    border-radius: var(--kd-radius);
    height: 400px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    position: relative;
    overflow: hidden;
}

.product-detail-img::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60' viewBox='0 0 60 60'%3E%3Ccircle cx='30' cy='30' r='1.5' fill='%2316a34a' fill-opacity='0.08'/%3E%3C/svg%3E");
}

.product-detail-img i {
    font-size: 7rem;
    background: var(--kd-gradient-green);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
    z-index: 1;
}

.feature-list {
    list-style: none;
    padding: 0;
}

.feature-list li {
    padding: 10px 0;
    border-bottom: 1px dashed var(--kd-border);
    display: flex;
    align-items: flex-start;
    gap: 10px;
    transition: var(--kd-transition);
}

.feature-list li:hover {
    padding-left: 6px;
    color: var(--kd-primary);
}

.feature-list li:last-child {
    border-bottom: none;
}

.feature-list li::before {
    content: '\f058';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    color: var(--kd-primary);
    margin-top: 3px;
    font-size: 1.05rem;
}

.specs-table {
    width: 100%;
    border-collapse: collapse;
    border-radius: var(--kd-radius-sm);
    overflow: hidden;
}

.specs-table th,
.specs-table td {
    padding: 12px 18px;
    border: 1px solid var(--kd-border);
    font-size: 0.9rem;
}

.specs-table th {
    background: var(--kd-bg-light);
    font-weight: 600;
    color: var(--kd-text);
    white-space: nowrap;
    width: 40%;
}

/* ==================== 新闻详情页 ==================== */
.news-detail-header {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 24px;
    border-bottom: 2px solid var(--kd-border);
}

.news-detail-header h1 {
    font-size: 1.9rem;
    font-weight: 800;
    margin-bottom: 1rem;
    line-height: 1.4;
}

.news-detail-meta {
    font-size: 0.85rem;
    color: var(--kd-text-light);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
}

.news-detail-content {
    font-size: 1rem;
    line-height: 2;
    color: var(--kd-text);
}

.news-detail-content p {
    margin-bottom: 1.2rem;
}

.news-detail-content h3,
.news-detail-content strong {
    color: var(--kd-primary-darker);
}

/* ==================== 优势区域 ==================== */
.advantage-section {
    background: linear-gradient(135deg, #14532d 0%, #16a34a 50%, #15803d 100%);
    color: #fff;
    position: relative;
    overflow: hidden;
}

.advantage-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 10% 90%, rgba(255,255,255,0.05) 0%, transparent 30%),
        radial-gradient(circle at 90% 10%, rgba(255,255,255,0.05) 0%, transparent 30%);
}

.advantage-section > .container {
    position: relative;
    z-index: 1;
}

.advantage-card {
    text-align: center;
    padding: 36px 24px;
    transition: var(--kd-transition);
    border-radius: var(--kd-radius);
}

.advantage-card:hover {
    transform: translateY(-10px);
    background: rgba(255,255,255,0.05);
    backdrop-filter: blur(10px);
}

.advantage-icon {
    width: 84px;
    height: 84px;
    background: rgba(255,255,255,0.12);
    border: 2px solid rgba(255,255,255,0.15);
    border-radius: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 2.2rem;
    transition: var(--kd-transition);
}

.advantage-card:hover .advantage-icon {
    background: rgba(255,255,255,0.2);
    border-color: rgba(255,255,255,0.3);
    transform: scale(1.1) rotate(-5deg);
}

.advantage-card h5 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.advantage-card p {
    font-size: 0.9rem;
    opacity: 0.85;
    margin-bottom: 0;
    line-height: 1.7;
}

/* ==================== CTA区域 ==================== */
.cta-section {
    background: var(--kd-gradient-accent);
    color: #fff;
    padding: 60px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='60' viewBox='0 0 60 60'%3E%3Ccircle cx='30' cy='30' r='1.5' fill='rgba(255,255,255,0.1)'/%3E%3C/svg%3E");
    opacity: 0.5;
}

.cta-section .container {
    position: relative;
    z-index: 1;
}

.cta-section h2 {
    font-size: 2.1rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.cta-section p {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 1.5rem;
}

.cta-section .btn {
    background: #fff;
    color: var(--kd-accent-dark);
    font-weight: 800;
    padding: 14px 44px;
    border-radius: 50px;
    font-size: 1.15rem;
    box-shadow: 0 10px 30px -5px rgba(0,0,0,0.2);
    transition: var(--kd-transition);
}

.cta-section .btn:hover {
    transform: scale(1.05) translateY(-3px);
    box-shadow: 0 15px 40px -5px rgba(0,0,0,0.25);
}

/* ==================== 面包屑导航 ==================== */
.breadcrumb-section {
    background: var(--kd-bg-gray);
    padding: 16px 0;
    border-bottom: 1px solid var(--kd-border);
}

.breadcrumb-section .breadcrumb {
    margin-bottom: 0;
    font-size: 0.9rem;
}

.breadcrumb-section .breadcrumb a {
    color: var(--kd-primary);
}

/* ==================== 页脚 ==================== */
.footer {
    background: linear-gradient(180deg, #1a2e22 0%, #0f1f17 100%);
    color: #a8c4b5;
    padding-top: 60px;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--kd-primary), transparent);
}

.footer-brand {
    font-size: 1.4rem;
    font-weight: 800;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-brand i {
    color: var(--kd-primary-light);
}

.footer-desc {
    font-size: 0.9rem;
    line-height: 1.8;
    margin-top: 1rem;
    color: #8fae9f;
}

.footer-title {
    color: #fff;
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1.2rem;
    position: relative;
    padding-bottom: 12px;
}

.footer-title::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 40px;
    height: 3px;
    background: var(--kd-gradient-green);
    border-radius: 3px;
}

.footer-links {
    list-style: none;
    padding: 0;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: #8fae9f;
    font-size: 0.9rem;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: var(--kd-transition);
}

.footer-links a::before {
    content: '\f105';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    color: var(--kd-primary-light);
    font-size: 0.8rem;
}

.footer-links a:hover {
    color: var(--kd-primary-lighter);
    padding-left: 6px;
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.9rem;
}

.contact-item i {
    color: var(--kd-primary-light);
    width: 20px;
    text-align: center;
    font-size: 1rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding: 22px 0;
    text-align: center;
    font-size: 0.82rem;
    margin-top: 30px;
    color: #7a9888;
}

.footer-link {
    color: #8fae9f;
}

.footer-link:hover {
    color: var(--kd-primary-lighter);
}

/* ==================== 返回顶部 ==================== */
.back-to-top {
    position: fixed;
    bottom: 80px;
    right: 25px;
    width: 48px;
    height: 48px;
    background: var(--kd-gradient-green);
    color: #fff;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--kd-transition);
    z-index: 999;
    box-shadow: 0 8px 25px -5px rgba(22,138,76,0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-4px) scale(1.1);
    box-shadow: 0 12px 35px -5px rgba(22,138,76,0.5);
}

/* ==================== 移动端底部电话按钮 ==================== */
.mobile-call-btn {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--kd-gradient-green);
    color: #fff;
    text-align: center;
    padding: 14px;
    font-weight: 700;
    font-size: 1rem;
    z-index: 999;
    display: none;
    align-items: center;
    justify-content: center;
    gap: 8px;
    box-shadow: 0 -4px 20px rgba(0,0,0,0.1);
}

.mobile-call-btn:hover {
    color: #fff;
    background: var(--kd-primary-dark);
}

.mobile-call-btn i {
    animation: phoneRing 2s ease-in-out infinite;
}

/* ==================== 分页 ==================== */
.pagination {
    justify-content: center;
    margin-top: 44px;
    gap: 6px;
}

.pagination .page-link {
    color: var(--kd-primary);
    border: 2px solid var(--kd-border);
    padding: 8px 18px;
    border-radius: 10px;
    font-weight: 600;
    transition: var(--kd-transition);
}

.pagination .page-link:hover {
    background: var(--kd-gradient-green);
    color: #fff;
    border-color: transparent;
    transform: translateY(-2px);
}

.pagination .active .page-link {
    background: var(--kd-gradient-green);
    border-color: transparent;
}

/* ==================== 后台管理样式 ==================== */
.admin-header {
    background: var(--kd-primary-darker);
    color: #fff;
    padding: 12px 0;
}

.admin-header a {
    color: rgba(255,255,255,0.85);
}

.admin-header a:hover {
    color: #fff;
}

.admin-sidebar {
    background: #fff;
    min-height: calc(100vh - 60px);
    border-right: 1px solid var(--kd-border);
    padding-top: 20px;
}

.admin-sidebar .nav-link {
    color: var(--kd-text);
    padding: 12px 20px;
    border-radius: 0;
    font-weight: 500;
    border-left: 4px solid transparent;
}

.admin-sidebar .nav-link:hover,
.admin-sidebar .nav-link.active {
    color: var(--kd-primary);
    background: var(--kd-bg-light);
    border-left-color: var(--kd-primary);
}

.admin-sidebar .nav-link i {
    width: 24px;
    text-align: center;
    margin-right: 8px;
}

.admin-content {
    padding: 25px;
    background: var(--kd-bg-gray);
    min-height: calc(100vh - 60px);
}

.admin-card {
    background: #fff;
    border-radius: var(--kd-radius);
    box-shadow: 0 2px 8px rgba(0,0,0,0.06), 0 4px 20px rgba(0,0,0,0.08);
    padding: 25px;
    margin-bottom: 20px;
}

.stat-card {
    background: #fff;
    border-radius: var(--kd-radius);
    padding: 28px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.06), 0 4px 20px rgba(0,0,0,0.08);
    text-align: center;
    transition: var(--kd-transition);
    border: 1px solid rgba(226, 232, 240, 0.6);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.10), 0 16px 48px rgba(0,0,0,0.12);
    border-color: var(--kd-primary-light);
}

.stat-icon {
    width: 64px;
    height: 64px;
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1rem;
    font-size: 1.6rem;
}

.stat-number {
    font-size: 2.2rem;
    font-weight: 900;
    color: var(--kd-text);
}

.stat-label {
    color: var(--kd-text-light);
    font-size: 0.9rem;
    font-weight: 500;
}

.admin-table {
    width: 100%;
}

.admin-table th {
    background: var(--kd-bg-light);
    color: var(--kd-text);
    font-weight: 600;
}

.admin-table td {
    vertical-align: middle;
}

.admin-login {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #14532d 0%, #16a34a 100%);
    position: relative;
    overflow: hidden;
}

.admin-login::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 20% 80%, rgba(255,255,255,0.08) 0%, transparent 40%),
        radial-gradient(circle at 80% 20%, rgba(255,255,255,0.06) 0%, transparent 40%);
}

.admin-login-card {
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(20px);
    border-radius: var(--kd-radius-lg);
    padding: 44px;
    box-shadow: 0 25px 70px rgba(0,0,0,0.25);
    width: 100%;
    max-width: 420px;
    position: relative;
    z-index: 1;
    border: 1px solid rgba(255,255,255,0.3);
}

.admin-login-card h3 {
    text-align: center;
    color: var(--kd-primary-darker);
    margin-bottom: 1.5rem;
    font-weight: 800;
}

.admin-login-card .form-control {
    padding: 14px 18px;
    border-radius: var(--kd-radius-sm);
    border: 2px solid var(--kd-border);
}

.admin-login-card .btn-primary {
    width: 100%;
    background: var(--kd-gradient-green);
    border: none;
    padding: 14px;
    font-weight: 700;
    border-radius: var(--kd-radius-sm);
    box-shadow: 0 8px 25px -5px rgba(22,163,74,0.35);
}

/* ==================== 提示消息 ==================== */
.alert {
    border-radius: var(--kd-radius);
    border: none;
}

.alert-success {
    background: #d4edda;
    color: #155724;
}

.alert-danger {
    background: #f8d7da;
    color: #721c24;
}

/* ==================== 响应式适配 ==================== */
@media (max-width: 991px) {
    .hero-carousel .carousel-item {
        height: 440px;
    }
    
    .hero-title {
        font-size: 2.4rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .section {
        padding: 56px 0;
    }
    
    .section-title h2 {
        font-size: 1.75rem;
    }
    
    .section-title {
        margin-bottom: 40px;
    }
    
    .mobile-call-btn {
        display: flex;
    }
    
    .back-to-top {
        bottom: 70px;
    }
    
    body {
        padding-bottom: 54px;
    }
    
    .navbar-collapse {
        background: rgba(255,255,255,0.98);
        backdrop-filter: blur(20px);
        border-radius: var(--kd-radius);
        padding: 12px;
        margin-top: 12px;
        box-shadow: var(--kd-shadow-md);
        border: 1px solid var(--kd-border);
    }
    
    .main-nav .nav-link {
        color: var(--kd-text) !important;
    }
    
    .btn-call {
        width: 100%;
        text-align: center;
        justify-content: center;
        margin-top: 10px;
    }
    
    .about-features {
        grid-template-columns: 1fr;
    }
    
    .about-intro {
        flex-direction: column;
    }
    
    .page-banner {
        height: 220px;
    }
    
    .page-banner h1 {
        font-size: 2rem;
    }
    
    .top-bar {
        display: none !important;
    }
}

@media (max-width: 767px) {
    .hero-carousel .carousel-item {
        height: 440px;
    }
    
    .hero-title {
        font-size: 1.9rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .hero-content {
        padding: 30px 0;
    }
    
    .hero-badge {
        font-size: 0.78rem;
        padding: 6px 16px;
    }
    
    .hero-stat-num {
        font-size: 1.7rem;
    }
    
    .hero-stat-label {
        font-size: 0.75rem;
    }
    
    .hero-stats {
        padding: 18px 20px;
    }
    
    .hero-buttons .btn {
        padding: 12px 28px;
        font-size: 0.95rem;
    }
    
    .section {
        padding: 44px 0;
    }
    
    .section-title h2 {
        font-size: 1.5rem;
    }
    
    .section-title p {
        font-size: 0.88rem;
    }
    
    .section-title {
        margin-bottom: 32px;
    }
    
    .brand-name {
        font-size: 1.15rem;
    }
    
    .brand-sub {
        font-size: 0.62rem;
    }
    
    .brand-logo {
        width: 42px;
        height: 42px;
        font-size: 1.3rem;
        border-radius: 12px;
    }
    
    .product-img {
        height: 170px;
    }
    
    .product-img i {
        font-size: 3.5rem;
    }
    
    .contact-info-card,
    .contact-form-card {
        padding: 24px;
    }
    
    .news-detail-header h1 {
        font-size: 1.4rem;
    }
    
    .page-banner {
        height: 180px;
    }
    
    .page-banner h1 {
        font-size: 1.7rem;
    }
    
    .cta-section h2 {
        font-size: 1.5rem;
    }
    
    .cta-section .btn {
        padding: 12px 32px;
        font-size: 1rem;
    }
    
    .advantage-card {
        padding: 24px 16px;
    }
    
    .advantage-icon {
        width: 68px;
        height: 68px;
        font-size: 1.8rem;
    }
    
    .category-filter a {
        padding: 8px 18px;
        font-size: 0.85rem;
    }
    
    .about-visual {
        padding: 36px 28px;
    }
    
    .admin-sidebar {
        min-height: auto;
    }
    
    .admin-content {
        padding: 15px;
    }
    
    .wave-divider svg {
        height: 40px;
    }
}

@media (max-width: 575px) {
    .hero-carousel .carousel-item {
        height: 460px;
    }
    
    .hero-title {
        font-size: 1.6rem;
    }
    
    .hero-buttons .btn {
        padding: 10px 24px;
        font-size: 0.9rem;
        width: 100%;
        text-align: center;
    }
    
    .hero-stats {
        padding: 16px 12px;
        margin-top: 1.5rem;
    }
    
    .hero-stat-num {
        font-size: 1.4rem;
    }
    
    .product-detail-img {
        height: 260px;
    }
    
    .product-detail-img i {
        font-size: 5rem;
    }
    
    .admin-login-card {
        padding: 30px 24px;
        margin: 16px;
    }
}