:root {
    --primary: #09101f;
    --primary-light: #0f1b33;
    --accent: #e07b39;
    --accent-light: #f08c4a;
    --accent-glow: #ffb27d;
    --steel-blue: #2c5282;
    --steel-light: #4a6a8a;
    --steel: #4a5568;
    --steel-text: #6b7d8e;
    --dark: #040a14;
    --white: #ffffff;
    --gray-bg: #f0f2f5;
    --gray-card: #e3e7eb;
    --text: #1a1a1a;
    --text-light: #4a525a;
    --border: #d4d8df;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.13);
    --radius: 10px;
    --radius-sm: 6px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
    font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', 'Segoe UI', sans-serif;
    background: var(--gray-bg);
    color: var(--text);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============ 导航栏 ============ */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(9, 16, 31, 0.97);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
    transition: var(--transition);
    box-shadow: 0 2px 24px rgba(0, 0, 0, 0.3);
}
.header.scrolled {
    background: rgba(4, 10, 20, 0.98);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
}
.header-inner {
    max-width: 1300px;
    margin: 0 auto;
    padding: 0 28px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
    gap: 24px;
}
.logo {
    flex-shrink: 0;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--white);
    letter-spacing: 1px;
    white-space: nowrap;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}
.logo:hover {
    color: var(--accent-glow);
}
.logo-icon {
    width: 42px;
    height: 42px;
    background: linear-gradient(145deg, #e07b39, #b85e26);
    border: 1.5px solid rgba(255, 178, 125, 0.5);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
    color: #fff;
    flex-shrink: 0;
    font-weight: 900;
    letter-spacing: 0;
    box-shadow: 0 2px 10px rgba(224, 123, 57, 0.35);
    position: relative;
    overflow: hidden;
}
.logo-icon::after {
    content: '';
    position: absolute;
    top: -30%;
    left: -30%;
    width: 60%;
    height: 160%;
    background: rgba(255, 178, 125, 0.15);
    transform: rotate(25deg);
    animation: logoShine 3s ease-in-out infinite;
}
@keyframes logoShine {
    0%,
    100% {
        left: -30%;
    }
    50% {
        left: 110%;
    }
}
.logo-text {
    display: flex;
    align-items: baseline;
    gap: 2px;
}
.logo-text .dot {
    color: var(--accent-light);
    margin: 0 2px;
    font-weight: 400;
}
.logo-text .sub {
    font-size: 0.7rem;
    font-weight: 400;
    color: #bcc5d0;
    letter-spacing: 0.5px;
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
    list-style: none;
    flex-wrap: wrap;
}
.nav-links li a {
    display: block;
    padding: 8px 16px;
    color: #c5cdd8;
    text-decoration: none;
    font-size: 0.93rem;
    font-weight: 500;
    border-radius: 20px;
    transition: var(--transition);
    white-space: nowrap;
    position: relative;
}
.nav-links li a:hover,
.nav-links li a.active {
    color: #fff;
    background: rgba(255, 255, 255, 0.05);
}
.nav-links li a::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%) scaleX(0);
    width: 18px;
    height: 2px;
    background: var(--accent-light);
    border-radius: 1px;
    transition: transform 0.3s ease;
}
.nav-links li a:hover::after,
.nav-links li a.active::after {
    transform: translateX(-50%) scaleX(1);
}
.header-phone {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--accent-glow);
    font-weight: 700;
    font-size: 1.05rem;
    letter-spacing: 0.5px;
    white-space: nowrap;
    text-decoration: none;
    padding: 8px 18px;
    border: 1.5px solid rgba(224, 123, 57, 0.5);
    border-radius: 25px;
    transition: var(--transition);
    background: rgba(224, 123, 57, 0.06);
}
.header-phone:hover {
    border-color: var(--accent-glow);
    background: rgba(224, 123, 57, 0.14);
    box-shadow: 0 0 22px rgba(224, 123, 57, 0.3);
    color: #fff;
}
.header-phone .phone-icon {
    width: 17px;
    height: 17px;
    flex-shrink: 0;
}

/* 移动端菜单按钮 */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    flex-shrink: 0;
}
.menu-toggle span {
    display: block;
    width: 26px;
    height: 2.5px;
    background: #fff;
    margin: 6px 0;
    border-radius: 2px;
    transition: var(--transition);
}
.menu-toggle.open span:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}
.menu-toggle.open span:nth-child(2) {
    opacity: 0;
}
.menu-toggle.open span:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* ============ Banner ============ */
.banner {
    position: relative;
    background: linear-gradient(165deg, #040a14 0%, #09101f 28%, #0f1b33 50%, #070e1e 75%, #040a14 100%);
    min-height: 540px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
    padding: 60px 28px;
}
.banner::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(ellipse at 32% 18%, rgba(224, 123, 57, 0.06) 0%, transparent 50%),
    radial-gradient(ellipse at 68% 52%, rgba(44, 82, 130, 0.05) 0%, transparent 48%),
    radial-gradient(ellipse at 45% 72%, rgba(240, 140, 74, 0.04) 0%, transparent 42%);
    animation: bannerGlow 10s ease-in-out infinite;
    z-index: 0;
}
@keyframes bannerGlow {
    0%,
    100% {
        transform: translate(0, 0) rotate(0deg);
    }
    33% {
        transform: translate(1.5%, -1%) rotate(1.2deg);
    }
    66% {
        transform: translate(-0.8%, 0.6%) rotate(-0.6deg);
    }
}
.banner-grid {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    opacity: 0.05;
    background-image: linear-gradient(rgba(255, 255, 255, 0.5) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.5) 1px, transparent 1px);
    background-size: 50px 50px;
    mask-image: radial-gradient(ellipse at center, black 35%, transparent 75%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 35%, transparent 75%);
}
.banner-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}
.banner-particle {
    position: absolute;
    width: 3px;
    height: 3px;
    background: rgba(255, 178, 125, 0.5);
    border-radius: 50%;
    animation: floatUp 7s ease-in infinite;
}
.banner-particle:nth-child(1) {
    left: 6%;
    animation-delay: 0s;
    animation-duration: 7.5s;
}
.banner-particle:nth-child(2) {
    left: 20%;
    animation-delay: 1.2s;
    animation-duration: 6s;
}
.banner-particle:nth-child(3) {
    left: 36%;
    animation-delay: 2.6s;
    animation-duration: 8.2s;
}
.banner-particle:nth-child(4) {
    left: 50%;
    animation-delay: 0.7s;
    animation-duration: 6.8s;
}
.banner-particle:nth-child(5) {
    left: 64%;
    animation-delay: 1.9s;
    animation-duration: 7.8s;
}
.banner-particle:nth-child(6) {
    left: 76%;
    animation-delay: 3.2s;
    animation-duration: 6.3s;
}
.banner-particle:nth-child(7) {
    left: 88%;
    animation-delay: 4s;
    animation-duration: 9s;
}
.banner-particle:nth-child(8) {
    left: 12%;
    animation-delay: 5.1s;
    animation-duration: 5.6s;
}
.banner-particle:nth-child(9) {
    left: 44%;
    animation-delay: 1.6s;
    animation-duration: 7.1s;
}
.banner-particle:nth-child(10) {
    left: 68%;
    animation-delay: 2.8s;
    animation-duration: 6.5s;
}
@keyframes floatUp {
    0% {
        transform: translateY(460px) scale(0);
        opacity: 0;
    }
    10% {
        opacity: 1;
    }
    50% {
        transform: translateY(150px) scale(1.5);
        opacity: 0.7;
    }
    100% {
        transform: translateY(-50px) scale(0.2);
        opacity: 0;
    }
}
.banner-energy-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 500px;
    height: 500px;
    border: 1px solid rgba(44, 82, 130, 0.1);
    border-radius: 50%;
    z-index: 0;
    animation: ringPulse 5s ease-in-out infinite;
}
.banner-energy-ring:nth-child(2) {
    width: 340px;
    height: 340px;
    animation-delay: 0.7s;
    border-color: rgba(224, 123, 57, 0.08);
}
.banner-energy-ring:nth-child(3) {
    width: 200px;
    height: 200px;
    animation-delay: 1.4s;
    border-color: rgba(240, 140, 74, 0.06);
}
@keyframes ringPulse {
    0%,
    100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.5;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.1);
        opacity: 0.85;
    }
}
.banner-content {
    position: relative;
    z-index: 2;
    max-width: 760px;
}
.banner-badge {
    display: inline-block;
    background: rgba(224, 123, 57, 0.13);
    color: #ffb27d;
    padding: 7px 24px;
    border-radius: 25px;
    font-size: 0.88rem;
    font-weight: 600;
    letter-spacing: 2px;
    margin-bottom: 20px;
    border: 1px solid rgba(224, 123, 57, 0.3);
    animation: fadeInDown 0.8s ease forwards;
}
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
.banner-title {
    font-size: 2.9rem;
    font-weight: 800;
    color: #ffffff;
    letter-spacing: 2.5px;
    line-height: 1.3;
    margin-bottom: 12px;
    animation: fadeInUp 0.8s ease 0.2s forwards;
    opacity: 0;
}
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(35px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
.banner-title .highlight {
    background: linear-gradient(135deg, #f08c4a, #ffb27d, #e07b39, #f9a561);
    background-size: 300% 100%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: shimmer 4s ease-in-out infinite;
}
@keyframes shimmer {
    0%,
    100% {
        background-position: 0% 50%;
        filter: brightness(1);
    }
    50% {
        background-position: 100% 50%;
        filter: brightness(1.3);
    }
}
.banner-sub {
    font-size: 1.12rem;
    color: #b0c4d8;
    letter-spacing: 1.5px;
    margin-bottom: 28px;
    animation: fadeInUp 0.8s ease 0.4s forwards;
    opacity: 0;
}
.banner-stats {
    display: flex;
    gap: 40px;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 0.8s ease 0.6s forwards;
    opacity: 0;
}
.banner-stat {
    text-align: center;
    padding: 0 20px;
    border-right: 1px solid rgba(255, 255, 255, 0.1);
}
.banner-stat:last-child {
    border-right: none;
}
.banner-stat .num {
    font-size: 2.1rem;
    font-weight: 800;
    color: var(--accent-glow);
    letter-spacing: 1px;
}
.banner-stat .label {
    font-size: 0.82rem;
    color: #8895a6;
    letter-spacing: 1px;
}

/* ============ 通用区块 ============ */
.section {
    padding: 70px 28px;
}
.section-inner {
    max-width: 1300px;
    margin: 0 auto;
}
.section-title {
    text-align: center;
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 10px;
    letter-spacing: 1px;
}
.section-subtitle {
    text-align: center;
    color: var(--steel-text);
    font-size: 1rem;
    letter-spacing: 1px;
    margin-bottom: 48px;
    position: relative;
}
.section-subtitle::after {
    content: '';
    display: block;
    width: 50px;
    height: 3px;
    background: var(--accent);
    margin: 14px auto 0;
    border-radius: 2px;
}

/* ============ 公司介绍 ============ */
.about-section {
    background: #fff;
}
.about-grid {
    display: grid;
    grid-template-columns: 1fr 600px;
    gap: 48px;
    align-items: start;
}
.about-text h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 18px;
    letter-spacing: 1px;
}
.about-text h2 span {
    color: var(--accent);
}
.about-text p {
    color: var(--text-light);
    margin-bottom: 14px;
    line-height: 1.85;
    font-size: 0.98rem;
}
.about-text .highlight-box {
    background: linear-gradient(135deg, #fdf3ea, #fef7f2);
    border-left: 4px solid var(--accent);
    padding: 16px 20px;
    border-radius: 0 8px 8px 0;
    margin: 18px 0;
    font-weight: 600;
    color: #7a4420;
    letter-spacing: 0.5px;
    font-size: 1rem;
}
.about-text .highlight-box a {
    color: #b85e26;
    text-decoration: none;
    font-weight: 700;
    transition: var(--transition);
}
.about-text .highlight-box a:hover {
    color: #8a4218;
    text-decoration: underline;
}
.about-image-wrapper {
    flex-shrink: 0;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    position: relative;
    transition: var(--transition);
}
.about-image-wrapper:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.22);
}
.about-image-wrapper img {
    width: 600px;
    height: auto;
    max-height: 380px;
    object-fit: cover;
    display: block;
    border-radius: var(--radius);
    transition: transform 0.5s ease;
}
.about-image-wrapper:hover img {
    transform: scale(1.03);
}
.about-image-wrapper::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: linear-gradient(to top, rgba(0, 0, 0, 0.3), transparent);
    pointer-events: none;
    border-radius: 0 0 var(--radius) var(--radius);
}

/* ============ 产品展示 ============ */
.products-section {
    background: var(--gray-bg);
}
.product-category {
    margin-bottom: 52px;
}
.product-category:last-child {
    margin-bottom: 0;
}
.product-category-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 6px;
    letter-spacing: 1px;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--border);
    position: relative;
    display: inline-block;
}
.product-category-title::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--accent);
    border-radius: 1px;
}
.product-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
    margin-top: 20px;
}
.product-card {
    background: #fff;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    border: 1px solid transparent;
}
.product-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(224, 123, 57, 0.35);
}
.product-card .img-wrap {
    width: 100%;
    aspect-ratio: 1 / 1;
    overflow: hidden;
    background: #f5f6f8;
    position: relative;
}
.product-card .img-wrap img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.5s ease;
}
.product-card:hover .img-wrap img {
    transform: scale(1.08);
}
.product-card .img-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(9, 16, 31, 0);
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
    pointer-events: none;
}
.product-card:hover .img-overlay {
    background: rgba(9, 16, 31, 0.22);
}
.product-card .img-overlay .zoom-icon {
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transform: scale(0.6);
    transition: var(--transition);
    font-size: 1.2rem;
    color: var(--primary);
}
.product-card:hover .img-overlay .zoom-icon {
    opacity: 1;
    transform: scale(1);
}
.product-card .card-info {
    padding: 14px 16px;
    text-align: center;
}
.product-card .card-info .product-name {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--primary);
    letter-spacing: 0.5px;
    transition: var(--transition);
}
.product-card:hover .card-info .product-name {
    color: #b85e26;
}
.product-card .card-info .product-tag {
    display: inline-block;
    font-size: 0.75rem;
    color: #e07b39;
    background: rgba(224, 123, 57, 0.08);
    padding: 3px 10px;
    border-radius: 12px;
    margin-top: 6px;
    letter-spacing: 0.5px;
}

/* ============ 优势区域 ============ */
.advantages-section {
    background: linear-gradient(180deg, #09101f 0%, #0f1b33 50%, #09101f 100%);
    color: #fff;
    position: relative;
    overflow: hidden;
}
.advantages-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(90deg, transparent, transparent 40px, rgba(255, 255, 255, 0.005) 40px, rgba(255, 255, 255, 0.005) 41px);
    pointer-events: none;
    z-index: 0;
}
.advantages-section .section-inner {
    position: relative;
    z-index: 1;
}
.advantages-section .section-title {
    color: #fff;
}
.advantages-section .section-subtitle {
    color: #bcc5d0;
}
.advantages-section .section-subtitle::after {
    background: var(--accent-glow);
}
.adv-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.adv-card {
    background: rgba(255, 255, 255, 0.025);
    border: 1px solid rgba(255, 255, 255, 0.07);
    border-radius: var(--radius);
    padding: 32px 24px;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}
.adv-card:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(224, 123, 57, 0.45);
    transform: translateY(-5px);
    box-shadow: 0 12px 36px rgba(0, 0, 0, 0.35);
}
.adv-card .adv-icon {
    font-size: 2.5rem;
    margin-bottom: 14px;
    display: block;
}
.adv-card h4 {
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 8px;
    color: #ffb27d;
}
.adv-card p {
    color: #bcc5d0;
    font-size: 0.9rem;
    line-height: 1.6;
}

/* ============ 数据条 ============ */
.data-strip {
    background: #fff;
    padding: 40px 28px;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.data-strip-inner {
    max-width: 1100px;
    margin: 0 auto;
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 24px;
    text-align: center;
}
.data-item .data-num {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: 2px;
    transition: var(--transition);
}
.data-item:hover .data-num {
    color: #e07b39;
    transform: scale(1.05);
}
.data-item .data-label {
    font-size: 0.9rem;
    color: var(--steel-text);
    letter-spacing: 1px;
    margin-top: 2px;
}

.data-empty{
    padding:42px;
    border:1px dashed #d5e1ee;
    border-radius:14px;
    text-align:center;
    color:var(--geo-muted);
    background:#fff
}

/* ============ 底部 ============ */
.footer {
    background: #040a14;
    color: #bcc5d0;
    padding: 48px 28px 28px;
}
.footer > .container {
    max-width: 1300px;
    margin: 0 auto;
    display: grid;
}
.footer-inner {
    max-width: 1300px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 36px;
}
.footer h4 {
    color: #fff;
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 14px;
    position: relative;
    padding-bottom: 10px;
}
.footer h4::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--accent);
    border-radius: 1px;
}
.footer p,
.footer a {
    color: #8895a6;
    font-size: 0.9rem;
    line-height: 1.8;
    text-decoration: none;
    transition: var(--transition);
}
.footer a:hover {
    color: var(--accent-glow);
}
.footer .friend-links {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 4px;
}
.footer .friend-links a {
    display: inline-block;
    padding: 6px 14px;
    background: rgba(255, 255, 255, 0.035);
    border: 1px solid rgba(255, 255, 255, 0.09);
    border-radius: 20px;
    color: #8895a6;
    font-size: 0.82rem;
    transition: var(--transition);
    text-decoration: none;
    letter-spacing: 0.5px;
}
.footer .friend-links a:hover {
    background: rgba(224, 123, 57, 0.12);
    border-color: rgba(224, 123, 57, 0.4);
    color: #ffb27d;
    transform: translateY(-2px);
}
.footer-bottom {
    max-width: 1300px;
    margin: 28px auto 0;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.07);
    text-align: center;
    font-size: 0.82rem;
    color: #667080;
    letter-spacing: 0.5px;
}

/* ============ 移动端拨号按钮 ============ */
.mobile-call-btn {
    display: none;
    position: fixed;
    bottom: 28px;
    right: 24px;
    z-index: 9999;
    width: 56px;
    height: 56px;
    background: #e07b39;
    border-radius: 50%;
    box-shadow: 0 6px 22px rgba(224, 123, 57, 0.55);
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: var(--transition);
    animation: pulseBtn 2s ease-in-out infinite;
}
@keyframes pulseBtn {
    0%,
    100% {
        box-shadow: 0 6px 22px rgba(224, 123, 57, 0.55);
    }
    50% {
        box-shadow: 0 6px 38px rgba(224, 123, 57, 0.8), 0 0 0 18px rgba(224, 123, 57, 0.08);
    }
}
.mobile-call-btn:hover {
    background: #c96e2d;
    transform: scale(1.08);
}
.mobile-call-btn svg {
    width: 24px;
    height: 24px;
    fill: #fff;
}

/* ============ 响应式 ============ */
@media (max-width: 1100px) {
    .about-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    .about-image-wrapper {
        max-width: 600px;
        margin: 0 auto;
        width: 100%;
    }
    .about-image-wrapper img {
        width: 100%;
        height: auto;
        max-height: 350px;
    }
    .product-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 14px;
    }
    .adv-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    .footer-inner {
        grid-template-columns: 1fr 1fr;
        gap: 28px;
    }
}
@media (max-width: 768px) {
    .header-inner {
        height: 58px;
        padding: 0 16px;
        gap: 10px;
    }
    .logo {
        font-size: 1rem;
    }
    .logo-icon {
        width: 32px;
        height: 32px;
        font-size: 0.8rem;
        border-radius: 6px;
    }
    .logo-text .sub {
        font-size: 0.6rem;
    }
    .nav-links {
        display: none;
        position: absolute;
        top: 58px;
        left: 0;
        right: 0;
        background: rgba(9, 16, 31, 0.98);
        flex-direction: column;
        padding: 12px 16px;
        gap: 2px;
        border-bottom: 2px solid rgba(224, 123, 57, 0.4);
        box-shadow: 0 10px 28px rgba(0, 0, 0, 0.5);
    }
    .nav-links.open {
        display: flex;
    }
    .nav-links li a {
        padding: 10px 14px;
        border-radius: 6px;
        font-size: 0.9rem;
    }
    .header-phone {
        font-size: 0.78rem;
        padding: 6px 12px;
        gap: 4px;
        letter-spacing: 0;
    }
    .header-phone .phone-icon {
        width: 13px;
        height: 13px;
    }
    .menu-toggle {
        display: block;
    }
    .banner {
        min-height: 380px;
        padding: 40px 16px;
    }
    .banner-title {
        font-size: 1.7rem;
        letter-spacing: 1.2px;
    }
    .banner-sub {
        font-size: 0.88rem;
        letter-spacing: 0.8px;
    }
    .banner-stats {
        gap: 14px;
    }
    .banner-stat {
        padding: 0 10px;
        border-right: none;
    }
    .banner-stat .num {
        font-size: 1.4rem;
    }
    .banner-stat .label {
        font-size: 0.68rem;
    }
    .banner-energy-ring {
        width: 260px;
        height: 260px;
    }
    .banner-energy-ring:nth-child(2) {
        width: 180px;
        height: 180px;
    }
    .banner-energy-ring:nth-child(3) {
        width: 110px;
        height: 110px;
    }
    .section {
        padding: 44px 16px;
    }
    .section-title {
        font-size: 1.5rem;
    }
    .section-subtitle {
        font-size: 0.85rem;
        margin-bottom: 32px;
    }
    .about-text h2 {
        font-size: 1.4rem;
    }
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 10px;
    }
    .product-card .card-info {
        padding: 10px 8px;
    }
    .product-card .card-info .product-name {
        font-size: 0.8rem;
    }
    .product-category-title {
        font-size: 1.2rem;
    }
    .adv-grid {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    .data-strip-inner {
        gap: 14px;
    }
    .data-item .data-num {
        font-size: 1.8rem;
    }
    .data-item .data-label {
        font-size: 0.72rem;
    }
    .footer-inner {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    .mobile-call-btn {
        display: flex;
    }
}
@media (max-width: 420px) {
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 8px;
    }
    .product-card .card-info .product-name {
        font-size: 0.74rem;
    }
    .banner-title {
        font-size: 1.35rem;
    }
    .header-phone {
        font-size: 0.68rem;
        padding: 5px 8px;
    }
    .logo {
        font-size: 0.85rem;
    }
    .logo-text .sub {
        font-size: 0.55rem;
    }
}