/* ========== 全局变量 ========== */
:root {
    --primary: #F59A23;
    --primary-dark: #EE7800;
    --primary-light: #FEF5E8;
    --primary-gold: #F9C683;
    --secondary: #05766F;
    --bg-gray: #F5F5F5;
    --text-dark: #333333;
    --text-medium: #666666;
    --text-light: #999999;
    --footer-dark: #222429;
    --footer-darker: #15161A;
    --white: #FFFFFF;
    --shadow: 0px 14px 38px 1px rgba(0,0,0,0.1);
    --shadow-sm: 0px 7px 20px 1px rgba(0,0,0,0.1);
    --radius: 10px;
    --radius-sm: 6px;
}

/* ========== Reset ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Microsoft YaHei UI', 'Microsoft YaHei', 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
}

html { scroll-behavior: smooth; }

body {
    color: var(--text-dark);
    background: var(--white);
    overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
button { cursor: pointer; border: none; font-family: inherit; }
img { max-width: 100%; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ========== 按钮 ========== */
.btn {
    height: 42px;
    padding: 0 28px;
    border-radius: var(--radius);
    font-size: 15px;
    font-weight: 500;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
}
.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(245, 154, 35, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--primary);
    border: 1px solid var(--primary);
}
.btn-outline:hover {
    background: var(--primary);
    color: var(--white);
}

.btn-ghost {
    background: transparent;
    color: var(--white);
    border: 1px solid rgba(255,255,255,0.5);
}
.btn-ghost:hover {
    background: rgba(255,255,255,0.15);
    border-color: var(--white);
}

.btn-login {
    background: var(--secondary);
    color: var(--white);
    border: 1px solid var(--secondary);
}

.btn-login:hover {
    background: #045a55;
    border-color: #045a55;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(5, 118, 111, 0.35);
}

/* ========== 导航栏 ========== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0,0,0,0.06);
    transition: all 0.3s ease;
}

.header.scrolled {
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    height: 70px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all 0.3s ease;
}

.header.scrolled .nav-container {
    height: 60px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-logo-img {
    height: 48px;
    width: auto;
    display: block;
    transition: height 0.3s ease;
}

.header.scrolled .nav-logo-img {
    height: 40px;
}

.nav-menu {
    display: flex;
    gap: 28px;
}

.nav-link {
    font-size: 15px;
    color: var(--text-medium);
    position: relative;
    transition: color 0.3s;
    padding: 4px 0;
}

.nav-link:hover, .nav-link.active {
    color: var(--primary);
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--primary);
    border-radius: 2px;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.mini-program-dropdown {
    position: relative;
    display: inline-flex;
}

.mini-program-popup {
    position: absolute;
    top: calc(100% + 10px);
    right: 0;
    width: 160px;
    padding: 12px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: 0 8px 30px rgba(0,0,0,0.15);
    border: 1px solid #f0f0f0;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: all 0.25s ease;
    z-index: 1000;
    pointer-events: none;
}

.mini-program-popup::before {
    content: '';
    position: absolute;
    bottom: 100%;
    right: 24px;
    border: 6px solid transparent;
    border-bottom-color: var(--white);
    filter: drop-shadow(0 -1px 0 #f0f0f0);
}

.mini-program-dropdown:hover .mini-program-popup {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
}

.mini-program-popup img {
    width: 120px;
    height: 120px;
    border-radius: 8px;
    display: block;
}

.mini-program-popup span {
    font-size: 12px;
    color: var(--text-medium);
    white-space: nowrap;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: transparent;
    padding: 6px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--text-dark);
    transition: all 0.3s;
}

.mobile-menu {
    display: none;
    flex-direction: column;
    background: var(--white);
    padding: 16px 20px;
    gap: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
}

.mobile-menu a {
    font-size: 15px;
    color: var(--text-medium);
    padding: 8px 0;
    border-bottom: 1px solid #f0f0f0;
}

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

.mobile-menu .mobile-login {
    background: var(--secondary);
    color: var(--white);
    text-align: center;
    border-radius: var(--radius-sm);
    margin-top: 8px;
}

.mobile-menu .mobile-login:hover {
    background: #045a55;
    color: var(--white);
}

/* ========== Hero Banner ========== */
.banner {
    position: relative;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    margin-top: 70px;
}

.banner-bg {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #1a3a1a 0%, #2d5a27 30%, #F59A23 70%, #F9C683 100%);
}

.banner-bg::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(circle at 80% 20%, rgba(255,255,255,0.15) 0%, transparent 50%),
        radial-gradient(circle at 20% 80%, rgba(245,154,35,0.3) 0%, transparent 50%);
}

.banner-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
    background-size: 50px 50px;
}

.banner-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--white);
    padding: 80px 20px;
}

.banner-title {
    font-size: 42px;
    font-weight: bold;
    margin-bottom: 16px;
    text-shadow: 0 2px 20px rgba(0,0,0,0.2);
}

.banner-subtitle {
    font-size: 28px;
    margin-bottom: 36px;
    opacity: 0.9;
}

.banner-btns {
    display: flex;
    gap: 16px;
    justify-content: center;
}

.banner-scroll {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    text-align: center;
}

.banner-scroll span {
    font-size: 12px;
    color: rgba(255,255,255,0.7);
    letter-spacing: 2px;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, rgba(255,255,255,0.7), transparent);
    margin: 8px auto 0;
    animation: scrollPulse 2s infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: 0.3; height: 40px; }
    50% { opacity: 1; height: 50px; }
}

/* ========== 统计数据 ========== */
.stats-bar {
    background: var(--white);
    padding: 30px 0;
    margin-top: -50px;
    position: relative;
    z-index: 10;
}

.stats-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
    align-items: center;
    box-shadow: var(--shadow);
    border-radius: var(--radius);
    padding: 30px 20px;
}

.stat-item {
    text-align: center;
    padding: 10px;
}

.stat-icon {
    margin-bottom: 12px;
    display: flex;
    justify-content: center;
}

.stat-num {
    font-size: 28px;
    font-weight: bold;
    color: var(--text-dark);
}

.stat-label {
    font-size: 14px;
    color: var(--text-medium);
    margin-top: 4px;
}

.stat-divider {
    width: 1px;
    height: 60px;
    background: #e0e0e0;
}

/* ========== Section Header ========== */
.section-header {
    margin-bottom: 50px;
}

.section-header.center {
    text-align: center;
}

.section-title {
    font-size: 30px;
    font-weight: bold;
    color: var(--text-dark);
    display: inline-block;
    padding-bottom: 16px;
    border-bottom: 6px solid var(--primary);
    line-height: 1.2;
}

.section-header.center .section-title {
    border-bottom: 6px solid var(--primary);
}

.section-subtitle {
    font-size: 16px;
    color: var(--text-medium);
    margin-top: 20px;
    margin-left: 20px;
    display: inline-block;
}

.section-header.center .section-subtitle {
    margin-left: 0;
    display: block;
}

/* ========== 光伏新能源 ========== */
.energy-section {
    padding: 80px 0;
}

.energy-content {
    display: flex;
    gap: 30px;
    padding: 0 30px;
}

.energy-tabs {
    flex-shrink: 0;
}

.energy-tab {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 16px 20px;
    width: 380px;
    cursor: pointer;
    border-radius: var(--radius);
    margin-bottom: 16px;
    border-left: 4px solid transparent;
    transition: all 0.3s ease;
}

.energy-tab:hover {
    background: rgba(245, 154, 35, 0.05);
}

.energy-tab.active {
    background: linear-gradient(-110deg, transparent 40px, var(--white) 0);
    border-left: 4px solid var(--primary);
    box-shadow: var(--shadow);
    filter: drop-shadow(0px 14px 38px rgba(0,0,0,0.1));
}

.energy-tab.active .tab-icon svg rect,
.energy-tab.active .tab-icon svg path {
    stroke: var(--primary);
}

.energy-tab.active .tab-title {
    color: var(--text-dark);
}

.tab-text {
    flex: 1;
}

.tab-title {
    font-size: 20px;
    color: var(--text-dark);
    font-weight: 500;
}

.tab-desc {
    font-size: 14px;
    color: var(--text-medium);
    margin-top: 5px;
}

.energy-display {
    flex: 1;
    max-width: 600px;
}

.energy-image {
    border-radius: 16px;
    overflow: hidden;
    height: 267px;
    margin-bottom: 8px;
}

.energy-img-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: flex-end;
    transition: all 0.5s ease;
}

.energy-img-1 {
    background-image: url('../images/photovoltaic-storage-charging.png');
    background-size: cover;
    background-position: center;
}

.energy-img-2 {
    background-image: url('../images/photovoltaic-commercial.jpg');
    background-size: cover;
    background-position: center;
}

.energy-img-3 {
    background-image: url('../images/photovoltaic-residential.jpg');
    background-size: cover;
    background-position: center;
}

.energy-img-overlay {
    background: linear-gradient(to top, rgba(0,0,0,0.5), transparent);
    width: 100%;
    padding: 20px;
}

.energy-img-title {
    color: var(--white);
    font-size: 18px;
    font-weight: bold;
}

.energy-desc {
    font-size: 14px;
    color: var(--text-dark);
    line-height: 30px;
}

/* ========== 数字化服务 ========== */
.digital-section {
    background: var(--bg-gray);
    padding: 50px 0 80px;
}

/* ========== 产品平台 ========== */
.product-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
    padding: 0 10px;
}

.product-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 36px 32px;
    box-shadow: var(--shadow-sm);
    transition: transform 0.35s ease, box-shadow 0.35s ease;
    display: flex;
    flex-direction: column;
    position: relative;
    border-top: 4px solid var(--primary);
}

.product-card:nth-child(even) {
    border-top-color: var(--secondary);
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(0,0,0,0.12);
}

.product-icon {
    width: 72px;
    height: 72px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 22px;
    transition: transform 0.35s ease;
}

.product-icon-primary {
    background: var(--primary-light);
}

.product-icon-secondary {
    background: rgba(5, 118, 111, 0.08);
}

.product-card:hover .product-icon {
    transform: scale(1.08);
}

.product-name {
    font-size: 20px;
    font-weight: bold;
    color: var(--text-dark);
    margin-bottom: 10px;
    line-height: 1.4;
}

.product-desc {
    font-size: 14px;
    color: var(--text-medium);
    line-height: 1.6;
    margin-bottom: 22px;
    text-indent: 2em;
}

.product-features {
    list-style: none;
    margin: 0 0 24px 0;
    padding: 0;
    flex: 1;
}

.product-feature {
    font-size: 13px;
    color: var(--text-dark);
    line-height: 1.6;
    padding-left: 22px;
    position: relative;
    margin-bottom: 10px;
}

.product-feature::before {
    content: '';
    position: absolute;
    left: 0;
    top: 7px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--primary);
}

.product-card:nth-child(even) .product-feature::before {
    background: var(--secondary);
}

.product-badge {
    display: inline-block;
    font-size: 13px;
    font-weight: 500;
    color: var(--primary-dark);
    background: linear-gradient(135deg, var(--primary-light), #FFF8E8);
    padding: 10px 18px;
    border-radius: 20px;
    border: 1px solid rgba(245, 154, 35, 0.2);
    align-self: flex-start;
}

.product-card:nth-child(even) .product-badge {
    color: var(--secondary);
    background: linear-gradient(135deg, rgba(5, 118, 111, 0.08), rgba(5, 118, 111, 0.03));
    border-color: rgba(5, 118, 111, 0.2);
}

/* ========== 服务内容 ========== */
.service-section {
    padding: 60px 0 80px;
}

.pricing-grid {
    display: flex;
    justify-content: space-around;
    gap: 30px;
    margin-top: 50px;
}

.pricing-card {
    width: 300px;
    background: var(--white);
    box-shadow: var(--shadow-sm);
    border-radius: var(--radius);
    overflow: hidden;
    transition: all 0.3s ease;
    position: relative;
    display: flex;
    flex-direction: column;
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 50px rgba(0,0,0,0.15);
}

.pricing-card.featured {
    border: 2px solid var(--primary);
}

.pricing-badge {
    position: absolute;
    top: 0;
    right: 0;
    background: var(--primary);
    color: var(--white);
    font-size: 12px;
    padding: 4px 14px;
    border-radius: 0 var(--radius) 0 var(--radius-sm);
}

.pricing-header {
    padding: 24px 20px;
    background: var(--primary-light);
    border-bottom: 1px solid var(--primary);
}

.pricing-card.featured .pricing-header {
    background: linear-gradient(135deg, var(--primary-light), #FFF8E8);
}

.pricing-name {
    font-size: 24px;
    color: var(--primary-dark);
    text-align: center;
}

.pricing-target {
    font-size: 12px;
    color: var(--text-medium);
    line-height: 20px;
    text-indent: 2em;
    margin-top: 12px;
}

.pricing-features {
    padding: 24px 30px;
    flex: 1;
}

.pricing-feature {
    font-size: 14px;
    color: var(--text-light);
    line-height: 36px;
    border-bottom: 1px solid #f5f5f5;
}

.pricing-feature::before {
    content: '✓';
    color: var(--primary);
    margin-right: 10px;
    font-weight: bold;
}

.pricing-card .btn {
    width: calc(100% - 60px);
    margin: 0 30px 30px;
}

/* ========== 行业资讯 ========== */
.news-section {
    padding: 50px 0 24px;
}

.news-list {
    padding: 0 30px;
}

.news-item {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    cursor: pointer;
    border-radius: var(--radius);
    transition: all 0.3s ease;
    margin-bottom: 4px;
}

.news-item:hover {
    background: var(--white);
    border-left: 4px solid var(--primary);
    box-shadow: var(--shadow);
}

.news-date {
    width: 64px;
    height: 64px;
    background: rgba(245, 154, 35, 0.1);
    color: var(--primary);
    text-align: center;
    border-radius: var(--radius-sm);
    display: flex;
    flex-direction: column;
    justify-content: center;
    flex-shrink: 0;
}

.date-day {
    font-size: 20px;
    font-weight: bold;
}

.date-month {
    font-size: 12px;
    margin-top: 2px;
}

.news-content {
    margin-left: 20px;
    flex: 1;
}

.news-title {
    font-size: 18px;
    color: var(--text-dark);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.news-item:hover .news-title {
    color: var(--primary);
}

.news-desc {
    font-size: 14px;
    color: var(--text-medium);
    margin-top: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.6;
}

.news-divider {
    width: 100%;
    border: 1px dashed #BFBFBF;
    margin: 10px 0;
    opacity: 0.5;
}

/* ========== 合作伙伴 ========== */
.partners-section {
    padding: 60px 0;
}

.partners-marquee {
    overflow: hidden;
    position: relative;
    margin: 0 -20px;
    padding: 0 20px;
    -webkit-mask-image: linear-gradient(90deg, transparent, #000 5%, #000 95%, transparent);
    mask-image: linear-gradient(90deg, transparent, #000 5%, #000 95%, transparent);
}

.partners-track {
    display: flex;
    gap: 24px;
    width: max-content;
    animation: partners-scroll 30s linear infinite;
}

.partners-track:hover {
    animation-play-state: paused;
}

@keyframes partners-scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.partner-logo {
    flex-shrink: 0;
    width: 240px;
    height: 130px;
    background: var(--white);
    border: 1px solid #e8e8e8;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 6px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.partner-logo:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow-sm);
    transform: translateY(-4px);
}

/* ========== 页脚 ========== */
.footer {
    margin-top: 80px;
}

.footer-main {
    background: var(--footer-dark);
    color: var(--white);
    padding: 48px 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 220px 1px 1fr;
    gap: 36px;
    align-items: start;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.footer-brand-top {
    display: none;
}

.footer-qr {
    display: none;
}

.footer-divider {
    width: 1px;
    align-self: stretch;
    background: rgba(255,255,255,0.12);
}

.footer-logo {
    display: flex;
    align-items: center;
}

.footer-logo-img {
    height: 52px;
    width: auto;
    display: block;
}

.footer-contact {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.footer-contact-item {
    font-size: 14px;
    color: rgba(255,255,255,0.7);
    line-height: 1.8;
}

.footer-contact-item .contact-label {
    color: rgba(255,255,255,0.9);
    font-weight: 500;
}

.footer-contact-item a {
    color: rgba(255,255,255,0.7);
    transition: color 0.3s;
}

.footer-contact-item a:hover {
    color: var(--primary);
}

.footer-presales-qr {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 8px;
}

.footer-presales-qr .qr-placeholder {
    width: 72px;
    height: 72px;
    background: var(--white);
    border-radius: var(--radius-sm);
    padding: 3px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.footer-presales-qr .qr-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.footer-presales-qr .qr-label {
    font-size: 12px;
    color: rgba(255,255,255,0.7);
    line-height: 1.5;
}

.footer-qr-section {
    display: none;
}

.qr-list {
    display: none;
}

.qr-item {
    text-align: center;
}

.qr-placeholder {
    width: 80px;
    height: 80px;
    background: var(--white);
    border-radius: var(--radius-sm);
    padding: 3px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.qr-label {
    display: block;
    font-size: 12px;
    color: rgba(255,255,255,0.7);
    margin-top: 8px;
}

.footer-links-section {
    min-width: 0;
}

.footer-links-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr) auto;
    gap: 24px;
}

.footer-links-col {
    min-width: 0;
}

.footer-title {
    font-size: 15px;
    margin-bottom: 18px;
    color: var(--white);
    font-weight: 600;
}

.footer-links-col a {
    display: block;
    font-size: 13px;
    color: rgba(255,255,255,0.65);
    margin-bottom: 10px;
    transition: color 0.3s;
    line-height: 1.5;
}

.footer-links-col a:hover {
    color: var(--primary);
}

.footer-links-col .footer-contact-item {
    font-size: 13px;
    margin-bottom: 10px;
    line-height: 1.5;
}

.footer-qr-col {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.footer-qr-col .qr-placeholder {
    width: 88px;
    height: 88px;
}

.footer-qr-col .qr-label {
    font-size: 12px;
}

.footer-copyright {
    background: var(--footer-darker);
    text-align: center;
    min-height: 50px;
    padding: 14px 0;
    color: rgba(255,255,255,0.4);
    font-size: 13px;
}

.footer-copyright .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

.back-to-top {
    background: var(--primary);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    flex-shrink: 0;
}

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-4px);
    box-shadow: 0 4px 15px rgba(245,154,35,0.4);
}

/* ========== 联系弹窗 ========== */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

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

.modal-box {
    background: var(--white);
    border-radius: var(--radius);
    width: 580px;
    max-width: 90%;
    overflow: hidden;
    animation: modalIn 0.3s ease;
}

@keyframes modalIn {
    from { transform: translateY(-30px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px;
    border-bottom: 1px solid #f0f0f0;
}

.modal-header h3 {
    font-size: 24px;
    font-weight: bold;
    margin-bottom: 4px;
}

.modal-subtitle {
    font-size: 14px;
    color: var(--text-medium);
}

.form-group label.required::before {
    content: '* ';
    color: #e54545;
}

.checkbox-group {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px 12px;
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 13px;
    color: var(--text-dark);
    cursor: pointer;
    line-height: 1.3;
}

.checkbox-item input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--primary);
    flex-shrink: 0;
}

.modal-qr {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px dashed #e0e0e0;
}

.modal-qr .qr-placeholder {
    width: 100px;
    height: 100px;
    background: var(--white);
    border: 1px solid #eee;
    border-radius: var(--radius-sm);
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-qr .qr-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

.modal-qr .qr-label {
    display: block;
    font-size: 13px;
    color: var(--text-medium);
    margin-top: 8px;
}

.modal-close {
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-body {
    padding: 24px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 16px;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid #ddd;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-family: inherit;
    outline: none;
    transition: border-color 0.3s;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--primary);
}

.form-group textarea {
    resize: vertical;
}

.modal-submit {
    width: 100%;
    height: 42px;
    margin-top: 8px;
}

/* ========== 动画入场 ========== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
    .energy-content {
        flex-direction: column;
    }
    
    .energy-tab {
        width: 100%;
    }
    
    .product-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
    
    .pricing-grid {
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .nav-menu, .nav-actions {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .banner-title {
        font-size: 28px;
    }
    
    .banner-subtitle {
        font-size: 20px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 20px;
    }
    
    .stat-divider {
        display: none;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer-divider {
        display: none;
    }

    .footer-links-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }

    .footer-qr-col {
        grid-column: 1 / -1;
        flex-direction: row;
        justify-content: center;
        gap: 12px;
    }

    .partners-track {
        animation-duration: 20s;
    }

    .section-title {
        font-size: 24px;
    }
    
    .section-subtitle {
        display: block;
        margin-left: 0;
        margin-top: 12px;
    }
    
    .pricing-card {
        width: 100%;
    }
    
    .energy-section,
    .service-section,
    .news-section,
    .partners-section {
        padding: 40px 0;
    }
    
    .digital-section {
        padding: 30px 0 50px;
    }
}

/* ========== 产品平台响应式 ========== */
@media (max-width: 480px) {
    .product-grid {
        grid-template-columns: 1fr;
    }

    .product-card {
        padding: 28px 22px;
    }

    .product-name {
        font-size: 18px;
    }
}

/* ========== 新增：Banner 信任标签 ========== */
.banner-tags {
    display: flex;
    gap: 12px;
    justify-content: center;
    margin-top: 24px;
    flex-wrap: wrap;
}

.banner-tag {
    background: rgba(255,255,255,0.15);
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: 20px;
    padding: 6px 16px;
    font-size: 13px;
    color: var(--white);
}

/* ========== 新增：金昇平台区块 ========== */
.jinsheng-section {
    background: linear-gradient(180deg, #FFF8F0 0%, #FFFFFF 100%);
    padding: 80px 0;
}

.jinsheng-content {
    display: flex;
    gap: 40px;
    align-items: center;
}

.jinsheng-visual {
    flex: 0 0 45%;
    display: flex;
    justify-content: center;
}

.jinsheng-visual svg {
    width: 100%;
    max-width: 400px;
    height: auto;
}

.jinsheng-info {
    flex: 1;
}

.jinsheng-positioning {
    margin-bottom: 18px;
}

.jinsheng-modules {
    margin-bottom: 22px;
}

.jinsheng-audience {
    margin-bottom: 24px;
}

.jinsheng-cta {
    display: flex;
    gap: 12px;
}

.jinsheng-label {
    font-size: 14px;
    color: var(--secondary);
    margin-bottom: 8px;
    font-weight: bold;
}

.jinsheng-text {
    font-size: 15px;
    color: var(--text-medium);
    line-height: 1.8;
    text-indent: 2em;
    padding-right: 2em;
}

.jinsheng-module-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px 12px;
}

.jinsheng-module {
    font-size: 13px;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.module-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--primary);
    flex-shrink: 0;
}

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

.audience-tag {
    background: var(--white);
    color: var(--primary-dark);
    border: 1px solid rgba(245, 154, 35, 0.25);
    border-radius: 20px;
    padding: 5px 14px;
    font-size: 13px;
    font-weight: 500;
    white-space: nowrap;
    transition: all 0.3s ease;
    box-shadow: 0 2px 6px rgba(245, 154, 35, 0.06);
}

.audience-tag:hover {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(245, 154, 35, 0.2);
}

.jinsheng-cta {
    display: flex;
    gap: 12px;
    flex-shrink: 0;
}

.jinsheng-advantages {
    display: flex;
    gap: 20px;
    margin-top: 48px;
}

.jinsheng-advantage {
    flex: 1;
    text-align: center;
    padding: 24px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
}

.jinsheng-advantage .advantage-icon {
    display: flex;
    justify-content: center;
    align-items: center;
}

.jinsheng-advantage .advantage-icon svg {
    width: 32px;
    height: 32px;
}

.jinsheng-advantage h4 {
    font-size: 16px;
    margin: 12px 0 8px;
    color: var(--text-dark);
}

.jinsheng-advantage p {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.6;
}

.jinsheng-relation {
    margin-top: 32px;
    text-align: justify;
    font-size: 14px;
    color: var(--text-medium);
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
    text-indent: 2em;
}

.jinsheng-section .section-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: 40px;
}

.jinsheng-section .section-subtitle {
    line-height: 1.8;
    color: var(--text-medium);
    text-align: left;
    text-indent: 2em;
    max-width: 680px;
    margin-top: 20px;
}
.jinsheng-positioning-bar {
    background: linear-gradient(135deg, var(--primary-light) 0%, #FFF8E8 100%);
    border: 1px solid rgba(245, 154, 35, 0.18);
    border-radius: var(--radius);
    padding: 28px 36px;
    margin-bottom: 48px;
    text-align: center;
    box-shadow: var(--shadow-sm);
}

.positioning-core {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
    margin-bottom: 16px;
}

.positioning-tag {
    display: inline-flex;
    align-items: center;
    height: 38px;
    padding: 0 20px;
    border-radius: 20px;
    font-size: 14px;
    font-weight: 600;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.positioning-tag:hover {
    transform: translateY(-2px);
}

.positioning-tag.primary {
    background: var(--primary);
    color: var(--white);
    box-shadow: 0 4px 14px rgba(245, 154, 35, 0.35);
}

.positioning-tag.primary:hover {
    box-shadow: 0 6px 20px rgba(245, 154, 35, 0.45);
}

.positioning-tag.secondary {
    background: var(--secondary);
    color: var(--white);
}

.positioning-tag.accent {
    background: var(--white);
    color: var(--primary-dark);
    border: 1px solid rgba(245, 154, 35, 0.3);
}

.positioning-desc {
    font-size: 16px;
    color: var(--text-medium);
    font-weight: 500;
    text-indent: 2em;
    line-height: 1.8;
}

/* ========== 金昇平台：全流程管理时间轴 ========== */
.jinsheng-process {
    margin: 56px 0 48px;
    padding: 36px 32px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
}

.process-title {
    font-size: 18px;
    color: var(--text-dark);
    text-align: center;
    margin-bottom: 28px;
    font-weight: 600;
}

.process-timeline {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
}

.process-step {
    flex: 1;
    text-align: center;
    min-width: 80px;
}

.process-icon {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 12px;
    box-shadow: 0 4px 12px rgba(245, 154, 35, 0.12);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.process-step:hover .process-icon {
    transform: scale(1.08);
    box-shadow: 0 6px 18px rgba(245, 154, 35, 0.2);
}

.process-step:nth-child(even) .process-icon {
    background: rgba(5, 118, 111, 0.08);
    box-shadow: 0 4px 12px rgba(5, 118, 111, 0.1);
}

.process-name {
    font-size: 13px;
    color: var(--text-dark);
    font-weight: 500;
    white-space: nowrap;
}

.process-line {
    width: 24px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-gold), var(--primary));
    flex-shrink: 0;
    margin-top: -16px;
}

/* ========== 金昇平台：荣誉展示 ========== */
.jinsheng-awards {
    margin: 48px 0;
    padding: 44px 36px;
    background: linear-gradient(180deg, #FFFFFF 0%, #FFFBF5 100%);
    border-radius: var(--radius);
    border: 1px solid rgba(245, 154, 35, 0.12);
    box-shadow: 0 14px 40px rgba(245, 154, 35, 0.08);
}

.awards-header {
    text-align: center;
    margin-bottom: 32px;
}

.awards-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, var(--primary-light), #FFF8E8);
    color: var(--primary-dark);
    padding: 8px 18px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 16px;
    border: 1px solid rgba(245, 154, 35, 0.2);
    box-shadow: 0 2px 8px rgba(245, 154, 35, 0.08);
}

.awards-title {
    font-size: 24px;
    color: var(--text-dark);
    margin-bottom: 10px;
    font-weight: bold;
}

.awards-subtitle {
    font-size: 14px;
    color: var(--text-medium);
    line-height: 1.7;
    max-width: 720px;
    margin: 0 auto;
    text-indent: 2em;
    text-align: left;
}

.awards-gallery {
    display: flex;
    align-items: stretch;
    justify-content: center;
    gap: 24px;
    max-width: 900px;
    margin: 0 auto;
}

.award-item {
    text-align: center;
    display: flex;
    flex-direction: column;
}

.award-item.certificate {
    flex: 1.6;
    max-width: 560px;
}

.award-item.trophy {
    flex: 0.9;
    max-width: 280px;
}

.award-img-wrap {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    background: var(--white);
    border: 1px solid #f0f0f0;
    transition: transform 0.35s ease, box-shadow 0.35s ease;
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px;
}

.award-item.certificate .award-img-wrap {
    max-height: 340px;
}

.award-item.trophy .award-img-wrap {
    max-height: 340px;
}

.award-img-wrap:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow);
}

.award-img {
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    display: block;
    object-fit: contain;
}

.award-caption {
    display: inline-block;
    margin-top: 14px;
    font-size: 14px;
    color: var(--text-medium);
    font-weight: 500;
}

/* ========== 新增：核心优势区块（深色背景） ========== */
.advantages-section {
    background: #1A1A2E;
    padding: 80px 0;
}

.section-title-light {
    color: var(--white) !important;
    border-color: var(--primary) !important;
}

.section-subtitle-light {
    color: rgba(255,255,255,0.6) !important;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.advantage-card {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 12px;
    padding: 32px 24px;
    text-align: center;
    transition: all 0.3s ease;
}

.advantage-card:hover {
    background: rgba(255,255,255,0.08);
    transform: translateY(-4px);
}

.advantage-card-icon {
    margin-bottom: 16px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.advantage-card-title {
    color: var(--white);
    font-size: 18px;
    margin-bottom: 12px;
}

.advantage-card-desc {
    color: rgba(255,255,255,0.6);
    font-size: 14px;
    line-height: 1.7;
}

/* ========== 新增：客户案例区块 ========== */
.cases-section {
    background: var(--bg-gray);
    padding: 80px 0;
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.case-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.case-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(0,0,0,0.12);
}

.case-logo {
    padding: 32px 24px 16px;
    text-align: center;
}

.case-name {
    font-size: 16px;
    font-weight: bold;
    text-align: center;
    margin-bottom: 8px;
    color: var(--text-dark);
}

.case-type {
    display: block;
    text-align: center;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 4px;
    padding: 2px 10px;
    font-size: 12px;
    margin: 0 auto;
    width: fit-content;
}

.case-challenge {
    font-size: 13px;
    color: var(--text-medium);
    line-height: 1.7;
    padding: 16px 24px;
    text-align: center;
}

.case-solution {
    padding: 0 24px 16px;
    text-align: center;
}

.case-product {
    font-size: 12px;
    color: var(--secondary);
    background: #F0FAF9;
    padding: 6px 12px;
    border-radius: 4px;
    display: inline-block;
}

.case-result {
    display: flex;
    border-top: 1px solid #eee;
    padding: 20px 24px;
}

.result-item {
    flex: 1;
    text-align: center;
}

.result-num {
    font-size: 28px;
    font-weight: bold;
    color: var(--primary);
}

.result-label {
    font-size: 12px;
    color: var(--text-light);
    margin-top: 4px;
}

/* ========== 新增：静态统计项 ========== */
.stat-static .stat-num {
    /* 无需动画，直接显示 */
}

/* ========== 新增：响应式 - 金昇平台/核心优势/客户案例 ========== */
@media (max-width: 768px) {
    .jinsheng-content {
        flex-direction: column;
    }

    .jinsheng-visual {
        flex: 0 0 auto;
    }

    .jinsheng-positioning-bar {
        padding: 22px 20px;
    }

    .positioning-core {
        gap: 8px;
    }

    .positioning-tag {
        height: 34px;
        padding: 0 14px;
        font-size: 13px;
    }

    .jinsheng-process {
        padding: 28px 20px;
        overflow-x: auto;
    }

    .process-timeline {
        min-width: 600px;
        justify-content: flex-start;
    }

    .jinsheng-awards {
        padding: 28px 20px;
    }

    .awards-gallery {
        flex-direction: column;
        align-items: center;
        gap: 20px;
    }

    .award-item.certificate,
    .award-item.trophy {
        flex: none;
        max-width: 100%;
        width: 100%;
    }

    .award-item.certificate .award-img-wrap,
    .award-item.trophy .award-img-wrap {
        max-height: 280px;
    }

    .awards-title {
        font-size: 20px;
    }

    .jinsheng-advantages {
        flex-wrap: wrap;
    }

    .jinsheng-advantage {
        flex: 1 1 calc(50% - 10px);
    }

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

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

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

@media (max-width: 480px) {
    .jinsheng-advantages {
        flex-direction: column;
    }

    .jinsheng-advantage {
        flex: 1 1 100%;
    }

    .positioning-core {
        gap: 8px;
    }

    .positioning-tag {
        height: 32px;
        padding: 0 12px;
        font-size: 12px;
    }

    .positioning-desc {
        font-size: 14px;
    }

    .process-timeline {
        min-width: 560px;
    }

    .process-icon {
        width: 44px;
        height: 44px;
    }

    .process-name {
        font-size: 12px;
    }

    .jinsheng-module-list {
        grid-template-columns: 1fr;
    }

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

    .footer-links-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .footer-qr-col {
        flex-direction: column;
    }

    .modal-box {
        width: 100%;
        max-width: calc(100% - 32px);
    }

    .footer-logo-img {
        height: 44px;
    }

    .nav-logo-img {
        height: 44px;
    }

    .partner-logo {
        width: 160px;
        height: 80px;
    }

    .partner-logo-img {
        width: 100%;
        height: 100%;
    }

    .partners-marquee {
        margin: 0 -16px;
        padding: 0 16px;
    }
}

/* ========== 合作伙伴Logo图片 ========== */
.partner-logo-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}

/* 二维码图片 */
.qr-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    display: block;
}