:root {
    --color-primary: #2ecc71;
    --color-primary-dark: #27ae60;
    --color-primary-darker: #1e8449;
    --color-primary-light: #a9dfbf;
    --color-primary-bg: #e8f8f0;
    --color-secondary: #3498db;
    --color-secondary-dark: #2980b9;
    --color-accent-yellow: #f1c40f;
    --color-accent-yellow-dark: #d3b700;
    --color-accent-yellow-darker: #b29800;
    --color-accent-orange: #e67e22;
    --color-accent-red: #e74c3c;
    --color-accent-purple: #9b59b6;
    --color-text: #2c3e50;
    --color-text-light: #555;
    --color-text-lighter: #bdc3c7;
    --color-bg: #ffffff;
    --color-bg-alt: #f7fdf9;
    --color-bg-dark: #1a2a1e;
    --color-border: #e0ece4;
    --font-family: 'Microsoft YaHei UI', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --header-height: 80px;
    --container-max: 1200px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-full: 9999px;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.06);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.12);
    --shadow-primary: 0 4px 20px rgba(46, 204, 113, 0.3);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--header-height);
}

body {
    font-family: var(--font-family);
    color: var(--color-text);
    background-color: var(--color-bg);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

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

ul {
    list-style: none;
}

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

.container {
    width: 100%;
     min-width: var(--container-max);
    margin: 0 auto;
    padding: 0 300px;
}

.section {
    padding: 100px 0;
}

.section--alt {
    background-color: var(--color-bg-alt);
}

.section__header {
    text-align: center;
    max-width: 680px;
    margin: 0 auto 60px;
}

.section__badge {
    display: inline-block;
    padding: 6px 20px;
    background: var(--color-primary-bg);
    color: var(--color-primary-dark);
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--radius-full);
    margin-bottom: 16px;
    letter-spacing: 0.5px;
}

.section__title {
    font-size: 36px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 16px;
    line-height: 1.3;
}

.section__desc {
    font-size: 16px;
    color: var(--color-text-light);
    line-height: 1.8;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 8px 20px;
    border-radius: var(--radius-full);
    font-size: 15px;
    font-weight: 500;
    font-family: var(--font-family);
    cursor: pointer;
    border: 2px solid transparent;
    transition: all var(--transition);
    white-space: nowrap;
}

.btn--primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: white;
    border-color: transparent;
}

.btn--primary:hover {
    background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary-darker));
    transform: translateY(-2px);
    box-shadow: var(--shadow-primary);
}


.btn--warning {
    background: linear-gradient(135deg, var(--color-accent-yellow), var(--color-accent-yellow-dark));
    color: white;
    border-color: transparent;
}

.btn--warning:hover {
    background: linear-gradient(135deg, var(--color-accent-yellow-dark), var(--color-accent-yellow-darker));
    transform: translateY(-2px);
    box-shadow: var(--shadow-primary);
}

.btn--outline {
    background: transparent;
    color: white;
    border-color: rgba(255, 255, 255, 0.4);
}

.btn--outline:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.7);
    transform: translateY(-2px);
}

.btn--white {
    background: white;
    color: var(--color-primary-dark);
    border-color: white;
}

.btn--white:hover {
    background: var(--color-primary-bg);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn--outline-white {
    background: transparent;
    color: white;
    border-color: rgba(255, 255, 255, 0.5);
}

.btn--outline-white:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: white;
    transform: translateY(-2px);
}

.btn--lg {
    padding: 16px 36px;
    font-size: 16px;
}

.lang-switch {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-right: 16px;
}

.lang-switch__label {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
    user-select: none;
}

.lang-switch__toggle {
    position: relative;
    width: 48px;
    height: 26px;
    cursor: pointer;
}

.lang-switch__input {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
    pointer-events: none;
}

.lang-switch__toggle {
    position: relative;
    width: 48px;
    height: 26px;
    cursor: pointer;
    display: inline-block;
}

.lang-switch__slider {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-border);
    border-radius: 13px;
    transition: background var(--transition);
    pointer-events: none;
}

.lang-switch__slider::before {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    width: 20px;
    height: 20px;
    background: white;
    border-radius: 50%;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition);
}

.lang-switch__input:checked + .lang-switch__slider {
    background: var(--color-primary);
}

.lang-switch__input:checked + .lang-switch__slider::before {
    transform: translateX(22px);
}

.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    transition: all var(--transition);
    border-bottom: 1px solid transparent;
}

.header.scrolled {
    box-shadow: var(--shadow-sm);
    border-bottom-color: var(--color-border);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-height);
}

.nav__logo {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.nav__logo-text {
    font-size: 22px;
    font-weight: 700;
    color: var(--color-primary-dark);
    letter-spacing: 1px;
}

.nav__logo-img {
    height: 2.5em;
    width: auto;
}

.nav__menu {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav__link {
    padding: 8px 16px;
    font-size: 16px;
    font-weight: 400;
    color: var(--color-text-light);
    border-radius: var(--radius-sm);
    transition: all var(--transition);
    position: relative;
    font-weight: bold;
}

.nav__link:hover,
.nav__link.active {
    color: var(--color-primary-dark);
    background: var(--color-primary-bg);
}

.nav__link.active::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 20px;
    height: 3px;
    background: var(--color-primary);
    border-radius: 2px;
}

.nav__item--dropdown {
    position: relative;
}

.nav__link--dropdown {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav__link--dropdown::after {
    content: '';
    display: inline-block;
    width: 0;
    height: 0;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 5px solid currentColor;
    transition: transform var(--transition);
}

.nav__submenu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(8px);
    background: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    min-width: 160px;
    padding: 8px 0;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
    z-index: 1001;
    list-style: none;
    border: 1px solid var(--color-border);
}

.nav__item--dropdown:hover > .nav__submenu,
.nav__item--dropdown:focus-within > .nav__submenu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

.nav__submenu-item {
    padding: 0;
}

.nav__submenu-link {
    display: block;
    padding: 10px 20px;
    font-size: 15px;
    font-weight: 400;
    color: var(--color-text-light);
    transition: all var(--transition);
    white-space: nowrap;
    border-left: 3px solid transparent;
}

.nav__submenu-link:hover {
    color: var(--color-primary-dark);
    background: var(--color-primary-bg);
    border-left-color: var(--color-primary);
}

.nav__submenu-link--active {
    color: var(--color-primary-dark);
    background: var(--color-primary-bg);
    border-left-color: var(--color-primary);
    font-weight: 500;
}

.nav__cta {
    padding: 8px 20px;
    font-size: 14px;
}

.nav__toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

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

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

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

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

.hero {
    position: relative;
    /min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding-top: var(--header-height);
}

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

.hero__gradient {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, #0a1f0e 0%, #0d2818 25%, #0a2a1a 50%, #0c1f2e 75%, #0a1a2e 100%);
}

.hero__particles {
    position: absolute;
    inset: 0;
    z-index: 1;
}

.hero__content {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    padding: 100px 300px;
}

.hero__text {
    color: white;
}

.hero__badge {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(46, 204, 113, 0.15);
    color: var(--color-primary);
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--radius-full);
    margin-bottom: 24px;
    border: 1px solid rgba(46, 204, 113, 0.3);
    letter-spacing: 1px;
}

.hero__title {
    font-size: 52px;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 24px;
    letter-spacing: -0.5px;
}

.hero__title--highlight {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero__desc {
    font-size: 17px;
    line-height: 1.9;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 36px;
    max-width: 520px;
}

.hero__actions {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.hero__stats {
    display: flex;
    gap: 40px;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.hero__stat {
    text-align: center;
}

.hero__stat-number {
    font-size: 36px;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1;
}

.hero__stat-suffix {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-primary);
}

.hero__stat-label {
    display: block;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
    margin-top: 6px;
}

.hero__visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero__image-wrapper {
    position: relative;
    width: 100%;
  
}

.hero__illustration {
    width: 100%;
    height: auto;
    filter: drop-shadow(0 0 40px rgba(46, 204, 113, 0.2));
}

.hero__ring--outer {
    animation: rotateRing 30s linear infinite;
    transform-origin: 250px 200px;
}

.hero__ring--inner {
    animation: rotateRing 20s linear infinite reverse;
    transform-origin: 250px 200px;
}

.hero__node {
    animation: pulseNode 3s ease-in-out infinite;
}

.hero__node--solar { animation-delay: 0s; }
.hero__node--wind { animation-delay: 0.5s; }
.hero__node--storage { animation-delay: 1s; }
.hero__node--grid { animation-delay: 1.5s; }
.hero__node--load { animation-delay: 2s; }

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

@keyframes pulseNode {
    0%, 100% { opacity: 0.8; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.05); }
}

.hero__scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 3;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.4);
    font-size: 12px;
    animation: bounceDown 2s ease-in-out infinite;
}

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

.technology__content {
    padding-top: 20px;
}

.technology__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.technology__card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 32px;
    border: 1px solid var(--color-border);
    transition: all var(--transition);
}

.technology__card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary-light);
}

.technology__card-icon {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}

.technology__card-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-text);
    text-align: center;
    margin-bottom: 12px;
}

.technology__card-desc {
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.7;
    text-align: center;
    margin-bottom: 16px;
}

.technology__card-features {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

.technology__card-features li {
    font-size: 12px;
    padding: 6px 12px;
    background: var(--color-primary-bg);
    color: var(--color-primary);
    border-radius: var(--radius-sm);
}

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

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

.solution-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition);
}

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

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

.solution-card__icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-bg);
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    transition: all var(--transition);
}

.solution-card:hover .solution-card__icon {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
}

.solution-card:hover .solution-card__icon svg path,
.solution-card:hover .solution-card__icon svg rect,
.solution-card:hover .solution-card__icon svg circle,
.solution-card:hover .solution-card__icon svg line {
    stroke: white;
}

.solution-card__title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--color-text);
}

.solution-card__desc {
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 20px;
}

.solution-card__link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-primary-dark);
    transition: all var(--transition);
}

.solution-card__link:hover {
    gap: 12px;
    color: var(--color-primary-darker);
}

.advantages__comparison {
    margin-bottom: 60px;
}

.advantages__table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
}

.advantages__table {
    width: 100%;
    border-collapse: collapse;
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.advantages__th {
    padding: 20px 24px;
    text-align: left;
    font-size: 16px;
    font-weight: 600;
    background: var(--color-bg-alt);
    border-bottom: 2px solid var(--color-border);
}

.advantages__th--feature {
    width: 25%;
    color: var(--color-text);
}

.advantages__th--us {
    width: 37.5%;
    color: var(--color-primary-dark);
    position: relative;
}

.advantages__th--other {
    width: 37.5%;
    color: var(--color-text-light);
}

.advantages__th-badge {
    display: inline-block;
    padding: 2px 10px;
    background: var(--color-primary);
    color: white;
    font-size: 11px;
    font-weight: 500;
    border-radius: var(--radius-full);
    margin-right: 8px;
    vertical-align: middle;
}

.advantages__table td {
    padding: 18px 24px;
    border-bottom: 1px solid var(--color-border);
    font-size: 14px;
    vertical-align: middle;
}

.advantages__table tbody tr:last-child td {
    border-bottom: none;
}

.advantages__table tbody tr:hover {
    background: var(--color-primary-bg);
}

.advantages__td--highlight {
    background: rgba(46, 204, 113, 0.03);
}

.advantages__value {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
}

.advantages__value--high {
    color: var(--color-primary-dark);
}

.advantages__value--low {
    color: var(--color-text-light);
}

.advantages__bar {
    height: 6px;
    background: var(--color-bg-alt);
    border-radius: 3px;
    overflow: hidden;
}

.advantages__bar-fill {
    height: 100%;
    border-radius: 3px;
    transition: width 1.5s cubic-bezier(0.4, 0, 0.2, 1);
    width: 0;
}

.advantages__bar-fill--high {
    background: linear-gradient(90deg, var(--color-primary), var(--color-primary-dark));
}

.advantages__bar-fill--low {
    background: var(--color-text-lighter);
}

.advantages__bar-fill.animated {
    width: var(--target-width);
}

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

.advantage-feature {
    text-align: center;
    padding: 32px 20px;
    border-radius: var(--radius-lg);
    background: white;
    border: 1px solid var(--color-border);
    transition: all var(--transition);
}

.advantage-feature:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary-light);
}

.advantage-feature__icon {
    display: flex;
    justify-content: center;
    margin-bottom: 16px;
}

.advantage-feature h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--color-text);
}

.advantage-feature p {
    font-size: 13px;
    color: var(--color-text-light);
    line-height: 1.7;
}

.about-us-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 28px;
}

.about-us-left {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.about-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 28px;
    border: 1px solid var(--color-border);
    transition: all var(--transition);
}

.about-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary-light);
}

.about-card__header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--color-border);
}

.about-card__header h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text);
    margin: 0;
}

.about-card__content p {
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 12px;
}

.about-card__content p:last-child {
    margin-bottom: 0;
}

.about-card__stats {
    display: flex;
    gap: 24px;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--color-border);
}

.about-stat {
    text-align: center;
    flex: 1;
}

.about-stat__value {
    display: block;
    font-size: 28px;
    font-weight: 700;
    color: var(--color-primary-dark);
    line-height: 1.2;
}

.about-stat__label {
    display: block;
    font-size: 12px;
    color: var(--color-text-light);
    margin-top: 4px;
}

.about-card--contact .about-card__content {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.contact-item {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.contact-item__label {
    flex-shrink: 0;
    width: 75px;
    font-size: 13px;
    font-weight: 500;
    color: var(--color-text-light);
}

.contact-item__value {
    font-size: 13px;
    color: var(--color-text);
}

.news-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 28px;
    border: 1px solid var(--color-border);
    height: 100%;
    transition: all var(--transition);
}

.news-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary-light);
}

.news-card__header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--color-border);
}

.news-card__header h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text);
    margin: 0;
}



.news-card__list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.news-item {
    padding-bottom: 16px;
    border-bottom: 1px solid var(--color-border);
}

.news-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.news-item__date {
    display: inline-block;
    font-size: 12px;
    color: var(--color-text-light);
    margin-bottom: 6px;
}

.news-item__title {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: 6px;
    line-height: 1.5;
}

.news-item__desc {
    font-size: 13px;
    color: var(--color-text-light);
    line-height: 1.6;
}

.cases__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.case-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition);
    border: 1px solid var(--color-border);
}

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

.case-card__image {
    overflow: hidden;
}

.case-card__image svg {
    width: 100%;
    height: auto;
    transition: transform var(--transition-slow);
}

.case-card:hover .case-card__image svg {
    transform: scale(1.05);
}

.case-card__content {
    padding: 24px;
}

.case-card__tag {
    display: inline-block;
    padding: 4px 12px;
    background: var(--color-primary-bg);
    color: var(--color-primary-dark);
    font-size: 12px;
    font-weight: 500;
    border-radius: var(--radius-full);
    margin-bottom: 12px;
}

.case-card__title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--color-text);
}

.case-card__desc {
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 16px;
}

.case-card__metrics {
    display: flex;
    gap: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--color-border);
}

.case-card__metric {
    text-align: center;
    flex: 1;
}

.case-card__metric-value {
    display: block;
    font-size: 18px;
    font-weight: 700;
    color: var(--color-primary-dark);
    line-height: 1.2;
}

.case-card__metric-label {
    font-size: 11px;
    color: var(--color-text-light);
    margin-top: 2px;
}

.testimonials__carousel {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
}

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

.testimonial-card {
    min-width: 100%;
    padding: 40px;
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    text-align: center;
}

.testimonial-card__stars {
    display: flex;
    justify-content: center;
    gap: 4px;
    margin-bottom: 24px;
}

.testimonial-card__text {
    font-size: 17px;
    line-height: 1.9;
    color: var(--color-text);
    margin-bottom: 28px;
    font-style: italic;
}

.testimonial-card__author {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 14px;
}

.testimonial-card__avatar {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: white;
    font-size: 18px;
    font-weight: 600;
    border-radius: 50%;
    flex-shrink: 0;
}

.testimonial-card__info {
    text-align: left;
}

.testimonial-card__name {
    display: block;
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text);
}

.testimonial-card__role {
    display: block;
    font-size: 13px;
    color: var(--color-text-light);
}

.testimonials__controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-top: 28px;
}

.testimonials__btn {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    border: 2px solid var(--color-border);
    background: white;
    cursor: pointer;
    color: var(--color-text-light);
    transition: all var(--transition);
}

.testimonials__btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary-dark);
    background: var(--color-primary-bg);
}

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

.testimonials__dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--color-border);
    cursor: pointer;
    transition: all var(--transition);
    border: none;
}

.testimonials__dot.active {
    background: var(--color-primary);
    width: 28px;
    border-radius: 5px;
}

.news__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.news-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: all var(--transition);
    border: 1px solid var(--color-border);
}

.news-card--featured {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    padding: 0;
    overflow: hidden;
}

.news-card--featured .news-card__image {
    min-height: 250px;
}

.news-card--featured .news-card__content {
    padding: 32px 32px 32px 0;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

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

.news-card__image svg {
    width: 100%;
    height: 100%;
}

.news-card__meta {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.news-card__category {
    display: inline-block;
    padding: 4px 12px;
    background: var(--color-primary-bg);
    color: var(--color-primary-dark);
    font-size: 12px;
    font-weight: 500;
    border-radius: var(--radius-full);
}

.news-card__date {
    font-size: 13px;
    color: var(--color-text-lighter);
}

.news-card__title {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--color-text);
    line-height: 1.5;
    transition: color var(--transition);
}

.news-card:hover .news-card__title {
    color: var(--color-primary-dark);
}

.news-card__desc {
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 16px;
}

.news-card__link {
    font-size: 14px;
    font-weight: 500;
    color: var(--color-primary-dark);
    transition: all var(--transition);
}

.news-card__link:hover {
    color: var(--color-primary-darker);
}

.service-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 28px;
}
.index-news .service-grid {
    grid-template-columns: 2fr 1fr;
}
.service-grid--two-col {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 28px;
}

.service-right {
    display: flex;
    flex-direction: column;

}



.service-right .service-card--download {
    flex: 7;
}

.service-right .service-card--customer {
    flex: 3;
}

.service-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 32px;
    border: 1px solid var(--color-border);
    transition: all var(--transition);
    display: flex;
    flex-direction: column;
}

.service-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary-light);
    transform: translateY(-4px);
}

.service-card__icon {
    width: 72px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    background: var(--color-primary-light);
    color: var(--color-primary);
    margin-bottom: 20px;
}

.service-card--download .service-card__icon {
    background: #e8f5e9;
    color: #2ecc71;
}

.service-card--bg {
    position: relative;
    overflow: hidden;
}

.service-card--bg .service-card__bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.service-card--bg .service-card__content,
.service-card--bg .service-card__icon,
.service-card--bg .service-card__title,
.service-card--bg .service-card__desc,
.service-card--bg .service-card__contact,
.service-card--bg .btn {
    position: relative;
    z-index: 1;
}

.service-card__content {
    margin-bottom: 20px;
}

.service-card--faq .service-card__icon {
    background: #fff3e0;
    color: #f39c12;
}

.service-card--customer .service-card__icon {
    background: #e3f2fd;
    color: #3498db;
}

.service-card__title {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 8px;
}

.service-card__desc {
    font-size: 14px;
    color: var(--color-text-light);
    margin-bottom: 20px;
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.service-card__desc .desc-line {
    display: block;
}

.service-card__contact {
    margin-bottom: 20px;
}

.service-card__hotline {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-primary-dark);
}

.faq-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.faq-item {
    padding: 14px 0;
    border-bottom: 1px solid var(--color-border);
}

.faq-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.faq-icon {
    display: inline-block;
    margin-right: 8px;
    vertical-align: middle;
}

.faq-item__question {
    display: block;
    font-size: 14px;
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: 6px;
}

.faq-item__answer {
    display: block;
    font-size: 13px;
    color: var(--color-text-light);
    line-height: 1.6;
}

.cta {
    background: linear-gradient(135deg, #0a1f0e 0%, #0d2818 50%, #0c1f2e 100%);
    padding: 80px 0;
}

.cta__content {
    text-align: center;
    color: white;
}

.cta__title {
    font-size: 40px;
    font-weight: 700;
    margin-bottom: 16px;
}

.cta__desc {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.7);
    max-width: 600px;
    margin: 0 auto 36px;
    line-height: 1.8;
}

.cta__actions {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.footer {
    background: var(--color-bg-dark);
    color: rgba(255, 255, 255, 0.7);
    padding: 60px 0 0;
}

.footer__grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr 0.8fr 1fr;
    gap: 50px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer__logo {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 16px;
}

.footer__logo span {
    font-size: 20px;
    font-weight: 700;
    color: white;
}

.footer__logo-img {
    height: 3em;
    width: auto;
    opacity: 0.2;
}

.footer__brand-desc {
    font-size: 14px;
    line-height: 1.8;
    margin-bottom: 20px;
}

.footer__social {
    display: flex;
    gap: 12px;
}

.footer__social-link {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.6);
    transition: all var(--transition);
}

.footer__social-link:hover {
    background: var(--color-primary);
    color: white;
    transform: translateY(-2px);
}


.footer__links-title {
    font-size: 16px;
    font-weight: 600;
    color: white;
    margin-bottom: 20px;
}

.footer__links-list li {
    margin-bottom: 10px;
}

.footer__links--app .footer__links-list {
    display: flex;
    flex-wrap: wrap;
    gap: 55px;
    align-items: center;height: 70%;
}

.footer__links--app .footer__links-list li {
    margin-bottom: 0;
}

.footer__links-img {
    width: 140px;
    height: 140px;
    object-fit: cover;
    border-radius: 8px;
}

.footer__links-list a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    transition: all var(--transition);
}

.footer__links-list a:hover {
    color: var(--color-primary);
    padding-left: 4px;
}

.footer__contact-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 14px;
    font-size: 14px;
}

.footer__contact-list svg {
    flex-shrink: 0;
    margin-top: 2px;
    color: var(--color-primary);
}

.footer__bottom {
    padding: 20px 0;
    text-align: center;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
}

.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--color-primary);
    color: white;
    border: none;
    cursor: pointer;
    box-shadow: var(--shadow-primary);
    transition: all var(--transition);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    z-index: 999;
}

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

.back-to-top:hover {
    background: var(--color-primary-dark);
    transform: translateY(-4px);
}

.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1),
                transform 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

.animate-on-scroll:nth-child(2) { transition-delay: 0.1s; }
.animate-on-scroll:nth-child(3) { transition-delay: 0.2s; }
.animate-on-scroll:nth-child(4) { transition-delay: 0.3s; }
.animate-on-scroll:nth-child(5) { transition-delay: 0.4s; }

@media (max-width: 1024px) {
    .hero__content {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero__desc {
        margin-left: auto;
        margin-right: auto;
    }

    .hero__actions {
        justify-content: center;
    }

    .hero__stats {
        justify-content: center;
    }

    .hero__visual {
        display: none;
    }

    .hero__title {
        font-size: 42px;
    }

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

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

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

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

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

@media (max-width: 768px) {
    :root {
        --header-height: 64px;
    }

    .section {
        padding: 60px 0;
    }

    .section__title {
        font-size: 28px;
    }

    .nav__menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: white;
        flex-direction: column;
        align-items: flex-start;
        padding: 80px 24px 24px;
        gap: 4px;
        box-shadow: var(--shadow-lg);
        transition: right var(--transition);
        z-index: 1000;
    }

    .nav__menu.open {
        right: 0;
    }

    .nav__link {
        width: 100%;
        padding: 12px 16px;
        font-size: 16px;
    }

    .nav__submenu {
        position: static;
        transform: none;
        box-shadow: none;
        border: none;
        border-radius: 0;
        max-height: 0;
        overflow: hidden;
        opacity: 1;
        visibility: visible;
        padding: 0;
        margin-left: 16px;
        transition: max-height var(--transition), padding var(--transition);
    }

    .nav__item--dropdown:hover > .nav__submenu,
    .nav__item--dropdown:focus-within > .nav__submenu {
        max-height: 200px;
        padding: 4px 0;
        transform: none;
    }

    .nav__submenu-link {
        padding: 8px 16px;
        font-size: 14px;
        border-left: none;
    }

    .nav__link--dropdown::after {
        margin-left: auto;
    }

    .nav__cta {
        display: none;
    }

    .nav__toggle {
        display: flex;
    }

    .hero__title {
        font-size: 32px;
    }

    .hero__desc {
        font-size: 15px;
    }

    .hero__stats {
        gap: 24px;
    }

    .hero__stat-number {
        font-size: 28px;
    }

    .hero__scroll-indicator {
        display: none;
    }

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

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

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

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

    .about-us-grid {
        grid-template-columns: 1fr;
    }

    .about-us-left {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .about-card {
        flex: 1;
        min-width: 280px;
    }

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

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

    .service-grid--two-col {
        grid-template-columns: 1fr;
    }

    .service-row {
        grid-template-columns: 1fr;
    }

    .service-right {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .service-card--faq .faq-list {
        max-height: 300px;
        overflow-y: auto;
    }

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

    .news-card--featured .news-card__content {
        padding: 24px;
    }

    .footer__grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .footer__links {
        width: auto;
    }

    .cta__title {
        font-size: 28px;
    }

    .testimonial-card {
        padding: 24px;
    }

    .testimonial-card__text {
        font-size: 15px;
    }
}

/* ===== 公司简介页面样式 ===== */

.about-content {
    padding: 80px 0;
}

.about-content__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    align-items: start;
}

.about-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    transition: all var(--transition);
}

.about-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary-light);
}

.about-card__header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 20px;
}

.about-card__header h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-text);
    margin: 0;
}

.about-card__content {
    margin-bottom: 20px;
}

.about-card__content p {
    font-size: 15px;
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 12px;
}

.about-card__content p:last-child {
    margin-bottom: 0;
}

.about-card__stats {
    display: flex;
    gap: 24px;
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--color-border);
}

.about-stat {
    text-align: center;
    flex: 1;
}

.about-stat__value {
    display: block;
    font-size: 28px;
    font-weight: 700;
    color: var(--color-primary-dark);
    line-height: 1.2;
}

.about-stat__label {
    display: block;
    font-size: 12px;
    color: var(--color-text-light);
    margin-top: 4px;
}

.about-image {
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--color-bg-alt);
    padding: 24px;
}

.about-values {
    padding: 80px 0;
    background: var(--color-bg-alt);
}

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

.value-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    transition: all var(--transition);
}

.value-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary-light);
}

.value-card__icon {
    margin-bottom: 20px;
    display: flex;
    justify-content: center;
}

.value-card__title {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 12px;
}

.value-card__desc {
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.6;
}

.about-team {
    padding: 80px 0;
}

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

.team-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 24px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    transition: all var(--transition);
}

.team-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.team-card__avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary-bg), var(--color-secondary));
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.team-card__avatar svg {
    width: 40px;
    height: 40px;
    fill: var(--color-primary-dark);
}

.team-card__name {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 4px;
}

.team-card__role {
    font-size: 13px;
    color: var(--color-text-light);
}

/* ===== 新闻资讯页面样式 ===== */

.news-content {
    padding: 80px 0;
}

.news-tabs {
    margin: 0 auto;
}

.news-tabs__nav {
    display: flex;
    gap: 12px;
    margin-bottom: 40px;
    justify-content: center;
    flex-wrap: wrap;
}

.news-tabs__tab {
    padding: 12px 32px;
    background: white;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: 15px;
    font-weight: 500;
    color: var(--color-text-light);
    cursor: pointer;
    transition: all var(--transition);
}

.news-tabs__tab:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.news-tabs__tab--active {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    border-color: var(--color-primary);
    color: white;
}

.news-tab__panel {
    display: none;
}

.news-tab__panel--active {
    display: block;
}

.news-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.news-article {
    background: white;
    border-radius: var(--radius-lg);
    padding: 28px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    transition: all var(--transition);
}

.news-article:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary-light);
    transform: translateX(4px);
}

.news-article__date {
    display: inline-block;
    font-size: 13px;
    color: var(--color-text-lighter);
    margin-bottom: 12px;
}

.news-article__title {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 12px;
    line-height: 1.5;
}

.news-article__desc {
    font-size: 15px;
    color: var(--color-text-light);
    line-height: 1.8;
    margin-bottom: 16px;
}

.news-article__meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 16px;
    border-top: 1px solid var(--color-border);
}

.news-article__category {
    display: inline-block;
    padding: 4px 14px;
    background: var(--color-primary-bg);
    color: var(--color-primary-dark);
    font-size: 12px;
    font-weight: 500;
    border-radius: var(--radius-full);
}

.news-article__read {
    font-size: 14px;
    color: var(--color-primary);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 6px;
}

.news-article__read::after {
    content: '→';
    transition: transform var(--transition);
}

.news-article:hover .news-article__read::after {
    transform: translateX(4px);
}

/* ===== 联系我们页面样式 ===== */

.contact-content {
    padding: 80px 0;
}

.contact-content__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
}

.contact-content__info {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 28px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    transition: all var(--transition);
}

.contact-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary-light);
}

.contact-card__icon {
    margin-bottom: 16px;
}

.contact-card__title {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 12px;
}

.contact-card__desc {
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.6;
    margin-bottom: 6px;
}

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

.contact-content__form {
    background: white;
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
}

.contact-form__title {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 24px;
}

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

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    color: var(--color-text);
    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 14px;
    font-family: var(--font-family);
    color: var(--color-text);
    background: white;
    transition: all var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-bg);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.contact-map {
    padding: 80px 0;
    background: var(--color-bg-alt);
}

.contact-map__container {
    height: 400px;
    background: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    display: flex;
    align-items: center;
    justify-content: center;
}

.contact-map__placeholder {
    text-align: center;
    color: var(--color-text-lighter);
}

.contact-map__placeholder svg {
    width: 64px;
    height: 64px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.contact-map__placeholder p {
    font-size: 14px;
}

/* ===== 响应式样式 ===== */

@media (max-width: 1024px) {
    .about-content__grid {
        grid-template-columns: 1fr;
    }

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

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

    .contact-content__grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .about-content,
    .about-values,
    .about-team,
    .news-content,
    .contact-content {
        padding: 60px 0;
    }

    .about-card {
        padding: 24px;
    }

    .about-card__stats {
        flex-direction: column;
        gap: 16px;
    }

    .about-stat {
        text-align: left;
    }

    .about-stat__value {
        display: inline-block;
        margin-right: 8px;
    }

    .about-stat__label {
        display: inline;
    }

    .about-values__grid {
        grid-template-columns: 1fr;
    }

    .about-team__grid {
        grid-template-columns: 1fr;
    }

    .news-tabs__nav {
        flex-direction: column;
        align-items: stretch;
    }

    .news-tabs__tab {
        padding: 14px 20px;
    }

    .news-article {
        padding: 20px;
    }

    .news-article__meta {
        flex-direction: column;
        gap: 12px;
        align-items: flex-start;
    }

    .contact-card {
        padding: 20px;
    }

    .contact-content__form {
        padding: 24px;
    }

    .contact-map {
        padding: 60px 0;
    }

    .contact-map__container {
        height: 300px;
    }
}

@media (max-width: 480px) {
    .hero__title {
        font-size: 26px;
    }

    .hero__actions {
        flex-direction: column;
        align-items: center;
    }

    .hero__stats {
        flex-direction: column;
        gap: 16px;
    }

    .btn--lg {
        padding: 14px 28px;
        font-size: 15px;
    }

    .case-card__metrics {
        flex-direction: column;
        gap: 8px;
    }

    .case-card__metric {
        display: flex;
        align-items: center;
        justify-content: space-between;
        text-align: left;
    }

    .case-card__metric-label {
        margin-top: 0;
    }
}

.particle {
    position: absolute;
    border-radius: 50%;
    background: var(--color-primary);
    opacity: 0;
    animation: particleFloat 6s ease-in-out infinite;
}

@keyframes particleFloat {
    0% {
        opacity: 0;
        transform: translateY(0) scale(0);
    }
    20% {
        opacity: 0.6;
        transform: translateY(-20px) scale(1);
    }
    80% {
        opacity: 0.3;
        transform: translateY(-80px) scale(0.8);
    }
    100% {
        opacity: 0;
        transform: translateY(-120px) scale(0);
    }
}

.service-content {
    padding: 80px 0;
}

.service-intro {
    margin-bottom: 60px;
}

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

.service-intro__card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    transition: all var(--transition);
}

.service-intro__card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary-light);
}

.service-intro__icon {
    margin-bottom: 20px;
    display: flex;
    justify-content: center;
}

.service-intro__card h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 12px;
}

.service-intro__card p {
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.6;
}

.service-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 48px;
    align-items: start;
}

.service-chat {
    background: white;
    border-radius: var(--radius-lg);
    padding: 32px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--color-border);
}

.service-chat__title {
    font-size: 20px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--color-border);
}

.service-chat__window {
    background: var(--color-bg-alt);
    border-radius: var(--radius-md);
    padding: 20px;
    margin-bottom: 20px;
    min-height: 300px;
    max-height: 400px;
    overflow-y: auto;
}

.service-chat__messages {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.service-chat__message {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.service-chat__message--user {
    flex-direction: row-reverse;
}

.service-chat__avatar {
    flex-shrink: 0;
}

.service-chat__bubble {
    max-width: 70%;
    padding: 12px 16px;
    border-radius: var(--radius-md);
    background: white;
    border: 1px solid var(--color-border);
}

.service-chat__bubble--user {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

.service-chat__bubble p {
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 8px;
}

.service-chat__bubble p:last-child {
    margin-bottom: 0;
}

.service-chat__time {
    font-size: 11px;
    color: var(--color-text-lighter);
    display: block;
    text-align: right;
}

.service-chat__bubble--user .service-chat__time {
    color: rgba(255, 255, 255, 0.7);
}

.service-chat__input {
    display: flex;
    gap: 12px;
}

.service-chat__input input {
    flex: 1;
    padding: 12px 16px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 14px;
    transition: border-color var(--transition);
}

.service-chat__input input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.service-chat__send {
    padding: 12px 20px;
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.service-chat__send:hover {
    background: var(--color-primary-dark);
}

.service-chat__quick {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--color-border);
}

.service-chat__quick h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 12px;
}

.service-chat__quick-btns {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.service-quick-btn {
    padding: 8px 16px;
    background: var(--color-primary-bg);
    color: var(--color-primary-dark);
    border: 1px solid var(--color-primary-light);
    border-radius: var(--radius-full);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
}

.service-quick-btn:hover {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

.service-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.service-info--two-col {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.service-info__card {
    background: white;
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    transition: all var(--transition);
}

.service-info__card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary-light);
}

.service-info__card h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 12px;
}

.service-info__content {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.service-info__highlight {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-primary-dark);
}

.service-info__content p:last-child {
    font-size: 13px;
    color: var(--color-text-light);
}

.download-tabs, .faq-tabs {
    margin: 0 auto;
}

.download-tabs__nav, .faq-tabs__nav {
    display: flex;
    gap: 12px;
    margin-bottom: 40px;
    justify-content: center;
    flex-wrap: wrap;
}

.download-tabs__tab, .faq-tabs__tab {
    padding: 12px 24px;
    background: white;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: 15px;
    font-weight: 500;
    color: var(--color-text-light);
    cursor: pointer;
    transition: all var(--transition);
}

.download-tabs__tab:hover, .faq-tabs__tab:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.download-tabs__tab--active, .faq-tabs__tab--active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

.download-tabs__panel, .faq-tabs__panel {
    display: none;
}

.download-tabs__panel--active, .faq-tabs__panel--active {
    display: block;
}

.download-grid, .faq-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.download-card, .faq-item {
    background: white;
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    transition: all var(--transition);
}

.download-card__meta {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-top: 16px;
    align-items: flex-start;
}

.download-card:hover, .faq-item:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary-light);
}

.download-card__header, .faq-item__question {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 12px;
}

.download-card__icon, .faq-item__icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-bg);
    border-radius: var(--radius-md);
    color: var(--color-primary-dark);
}

.download-card__title, .faq-item__question h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--color-text);
    margin: 0;
}

.download-card__desc, .faq-item__answer {
    font-size: 14px;
    color: var(--color-text-light);
    line-height: 1.6;
}

.download-card__files {
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--color-border);
}

.download-file {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--color-border);
}

.download-file:last-child {
    border-bottom: none;
}

.download-file__info {
    display: flex;
    align-items: center;
    gap: 10px;
}

.download-file__name {
    font-size: 13px;
    color: var(--color-text);
}

.download-file__size {
    font-size: 12px;
    color: var(--color-text-lighter);
}

.download-file__btn {
    padding: 6px 12px;
    background: var(--color-primary-bg);
    color: var(--color-primary-dark);
    border: none;
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
}

.download-file__btn:hover {
    background: var(--color-primary);
    color: white;
}

.faq-item {
    cursor: pointer;
}

.faq-item__answer {
    display: block;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--color-border);
}

.faq-item--open .faq-item__answer {
    display: block;
}

.faq-item--open .faq-item__icon {
    transform: rotate(180deg);
}

.faq-item__icon {
    transition: transform var(--transition);
}

.faq-item__icon svg {
    width: 16px;
    height: 16px;
}

@media (max-width: 1024px) {
    .service-intro__grid {
        grid-template-columns: 1fr;
    }

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

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

@media (max-width: 768px) {
    .service-content {
        padding: 60px 0;
    }

    .service-intro__card {
        padding: 24px;
    }

    .download-tabs__nav, .faq-tabs__nav {
        gap: 8px;
    }

    .download-tabs__tab, .faq-tabs__tab {
        padding: 10px 16px;
        font-size: 14px;
    }

    .download-card, .faq-item {
        padding: 20px;
    }

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