@charset "utf-8";


/* 品牌色 */
:root {
    --saiyin-red: #B81C2B;
    --saiyin-red-dark: #9A1824;
    --saiyin-gray: #717171;
    --saiyin-black: #3E3A39;
    --saiyin-light: #EFEFEF;
}

/* Hero区域 */
.hero {
    min-height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
}

.hero-bg {
    position: absolute;
    inset: 0;
    background:
            radial-gradient(ellipse at 20% 30%, rgba(184, 28, 43, 0.3) 0%, transparent 50%),
            radial-gradient(ellipse at 80% 70%, rgba(184, 28, 43, 0.2) 0%, transparent 40%),
            radial-gradient(ellipse at 50% 50%, rgba(255, 100, 100, 0.1) 0%, transparent 60%);
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(0,0,0,0.4), rgba(0,0,0,0.5));
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    padding: 120px 20px 80px;
    max-width: 1000px;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 50px;
    color: rgba(255,255,255,0.8);
    font-size: 14px;
    margin-bottom: 32px;
}

.badge svg {
    width: 16px;
    height: 16px;
    color: var(--saiyin-red);
}

.hero-title {
    font-size: clamp(32px, 6vw, 64px);
    font-weight: 800;
    color: white;
    margin-bottom: 24px;
    line-height: 1.2;
}

.hero-tagline {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 24px;
}

.tagline-line {
    width: 60px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--saiyin-red));
}

.tagline-line:last-child {
    background: linear-gradient(90deg, var(--saiyin-red), transparent);
}

.hero-tagline span {
    font-size: clamp(20px, 3vw, 32px);
    font-weight: 600;
    color: var(--saiyin-red);
}

.hero-desc {
    font-size: 18px;
    color: rgba(255,255,255,0.7);
    max-width: 600px;
    margin: 0 auto 40px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 60px;
    flex-wrap: wrap;
}

.btn-primary {
    padding: 14px 32px;
    background: var(--saiyin-red);
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(184, 28, 43, 0.4);
}

.btn-secondary {
    padding: 14px 32px;
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    color: white;
    border: 1px solid rgba(255,255,255,0.3);
    border-radius: 4px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s;
}

.btn-secondary:hover {
    background: rgba(255,255,255,0.2);
}

.value-cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    max-width: 800px;
    margin: 0 auto;
}

.value-card {
    padding: 24px 16px;
    background: rgba(255,255,255,0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 12px;
    transition: all 0.3s;
}

.value-card:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.2);
    transform: translateY(-8px);
}

.value-icon {
    width: 48px;
    height: 48px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 12px;
}

.value-icon.red { background: var(--saiyin-red); }
.value-icon.gray { background: var(--saiyin-gray); }
.value-icon.dark { background: var(--saiyin-black); }

.value-icon svg {
    width: 24px;
    height: 24px;
    color: white;
}

.value-card h3 {
    color: white;
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 4px;
}

.value-card p {
    color: rgba(255,255,255,0.6);
    font-size: 13px;
}

.hero-fade {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 120px;
    background: linear-gradient(to top, white, transparent);
}

/* 产品区域 */
.products {
    padding: 100px 0;
    background: var(--saiyin-light);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: white;
    border-radius: 50px;
    font-size: 14px;
    color: var(--saiyin-red);
    margin-bottom: 20px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.section-title {
    font-size: clamp(28px, 4vw, 40px);
    font-weight: 700;
    color: var(--saiyin-black);
    margin-bottom: 16px;
}

.section-desc {
    font-size: 18px;
    color: var(--saiyin-gray);
    max-width: 600px;
    margin: 0 auto;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
    margin-bottom: 60px;
}

.product-card {
    background: white;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
    transition: all 0.3s;
}

.product-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.12);
}

.product-header {
    padding: 32px;
    background: linear-gradient(135deg, var(--saiyin-black), #4a4645);
    position: relative;
    overflow: hidden;
}

.product-header::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 150px;
    height: 150px;
    background: rgba(184, 28, 43, 0.2);
    border-radius: 50%;
    filter: blur(40px);
}

.product-icon {
    width: 64px;
    height: 64px;
    background: var(--saiyin-red);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}

.product-icon svg {
    width: 32px;
    height: 32px;
    color: white;
}

.product-header h3 {
    color: white;
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 4px;
    position: relative;
    z-index: 1;
}

.product-header .subtitle {
    color: rgba(255,255,255,0.6);
    font-size: 12px;
    letter-spacing: 1px;
    position: relative;
    z-index: 1;
}

.product-body {
    padding: 24px;
}

.product-desc {
    color: var(--saiyin-gray);
    margin-bottom: 20px;
    line-height: 1.6;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-bottom: 20px;
}

.feature-item {
    padding: 16px;
    background: var(--saiyin-light);
    border-radius: 10px;
}

.feature-icon {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 8px;
}

.feature-icon.red { background: var(--saiyin-red); }
.feature-icon.gray { background: var(--saiyin-gray); }
.feature-icon.dark { background: var(--saiyin-black); }
.feature-icon.red-light { background: rgba(184, 28, 43, 0.8); }

.feature-icon svg {
    width: 20px;
    height: 20px;
    color: white;
}

.feature-item .label {
    font-size: 12px;
    color: var(--saiyin-gray);
    margin-bottom: 4px;
}

.feature-item .value {
    font-size: 18px;
    font-weight: 700;
    color: var(--saiyin-black);
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.tag {
    padding: 6px 12px;
    background: var(--saiyin-light);
    border-radius: 50px;
    font-size: 13px;
    color: var(--saiyin-gray);
    display: flex;
    align-items: center;
    gap: 4px;
}

.tag::before {
    content: '';
    width: 6px;
    height: 6px;
    background: var(--saiyin-red);
    border-radius: 50%;
}

.btn-full {
    width: 100%;
    padding: 14px;
    background: var(--saiyin-black);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.3s;
}

.btn-full:hover {
    background: var(--saiyin-red);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.stat-card {
    text-align: center;
    padding: 24px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.05);
}

.stat-card .number {
    font-size: 36px;
    font-weight: 700;
    color: var(--saiyin-red);
    margin-bottom: 4px;
}

.stat-card .label {
    font-size: 14px;
    color: var(--saiyin-gray);
}

/* 技术区域 */
.technology {
    padding: 100px 0;
    background: white;
    position: relative;
}

.tech-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 60px;
}

.tech-card {
    padding: 32px;
    background: white;
    border: 1px solid var(--saiyin-light);
    border-radius: 16px;
    transition: all 0.3s;
    cursor: pointer;
}

.tech-card:hover {
    border-color: rgba(184, 28, 43, 0.2);
    box-shadow: 0 8px 30px rgba(0,0,0,0.1);
    transform: translateY(-4px);
}

.tech-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
}

.tech-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.tech-icon.red { background: var(--saiyin-red); }
.tech-icon.gray { background: var(--saiyin-gray); }
.tech-icon.dark { background: var(--saiyin-black); }
.tech-icon.red-light { background: rgba(184, 28, 43, 0.8); }
.tech-icon.gray-light { background: rgba(113, 113, 113, 0.8); }
.tech-icon.dark-light { background: rgba(62, 58, 57, 0.8); }

.tech-icon svg {
    width: 28px;
    height: 28px;
    color: white;
}

.tech-arrow {
    width: 40px;
    height: 40px;
    background: var(--saiyin-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: all 0.3s;
}

.tech-card:hover .tech-arrow {
    opacity: 1;
}

.tech-arrow svg {
    width: 20px;
    height: 20px;
    color: var(--saiyin-red);
}

.tech-value {
    font-size: 42px;
    font-weight: 700;
    color: var(--saiyin-black);
    margin-bottom: 8px;
}

.tech-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--saiyin-black);
    margin-bottom: 8px;
}

.tech-desc {
    font-size: 14px;
    color: var(--saiyin-gray);
    line-height: 1.6;
}

.advantages {
    background: var(--saiyin-black);
    border-radius: 20px;
    padding: 60px;
    position: relative;
    overflow: hidden;
}

.advantages::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 2px 2px, rgba(255,255,255,0.05) 1px, transparent 0);
    background-size: 30px 30px;
}

.advantages-content {
    position: relative;
    z-index: 1;
}

.advantages h3 {
    text-align: center;
    color: white;
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 8px;
}

.advantages > p {
    text-align: center;
    color: var(--saiyin-gray);
    margin-bottom: 40px;
}

.advantage-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

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

.advantage-icon {
    width: 64px;
    height: 64px;
    background: rgba(255,255,255,0.1);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
    transition: all 0.3s;
}

.advantage-item:hover .advantage-icon {
    background: var(--saiyin-red);
}

.advantage-icon svg {
    width: 32px;
    height: 32px;
    color: var(--saiyin-red);
    transition: all 0.3s;
}

.advantage-item:hover .advantage-icon svg {
    color: white;
}

.advantage-item h4 {
    color: white;
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.advantage-item p {
    color: var(--saiyin-gray);
    font-size: 14px;
}

/* 可持续发展 */
.sustainability {
    padding: 100px 0;
    background: var(--saiyin-light);
    position: relative;
}

.sustainability::before,
.sustainability::after {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    background: rgba(184, 28, 43, 0.05);
    border-radius: 50%;
    filter: blur(60px);
}

.sustainability::before {
    top: 50px;
    left: 50px;
}

.sustainability::after {
    bottom: 50px;
    right: 50px;
}

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

.vision-card {
    background: white;
    border-radius: 16px;
    padding: 40px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.vision-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}

.vision-icon {
    width: 64px;
    height: 64px;
    background: var(--saiyin-red);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.vision-icon svg {
    width: 32px;
    height: 32px;
    color: white;
}

.vision-header h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--saiyin-black);
}

.vision-header p {
    color: var(--saiyin-red);
    font-size: 14px;
}

.vision-desc {
    color: var(--saiyin-gray);
    line-height: 1.8;
    margin-bottom: 24px;
}

.vision-desc span {
    color: var(--saiyin-red);
    font-weight: 600;
}

.check-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.check-item {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--saiyin-black);
}

.check-item::before {
    content: '';
    width: 20px;
    height: 20px;
    background: var(--saiyin-red);
    border-radius: 50%;
    flex-shrink: 0;
}

.feature-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.feature-card {
    background: white;
    border-radius: 12px;
    padding: 24px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
    transition: all 0.3s;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.1);
}

.feature-card-icon {
    width: 48px;
    height: 48px;
    background: var(--saiyin-light);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 12px;
    transition: all 0.3s;
}

.feature-card:hover .feature-card-icon {
    background: var(--saiyin-red);
}

.feature-card-icon svg {
    width: 24px;
    height: 24px;
    color: var(--saiyin-red);
    transition: all 0.3s;
}

.feature-card:hover .feature-card-icon svg {
    color: white;
}

.feature-card-stat {
    margin-bottom: 8px;
}

.feature-card-stat .num {
    font-size: 28px;
    font-weight: 700;
    color: var(--saiyin-red);
}

.feature-card-stat .unit {
    font-size: 13px;
    color: var(--saiyin-gray);
    margin-left: 4px;
}

.feature-card h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--saiyin-black);
    margin-bottom: 4px;
}

.feature-card p {
    font-size: 13px;
    color: var(--saiyin-gray);
    line-height: 1.5;
}

/* 关于我们 */
.about {
    padding: 100px 0;
    background: white;
    position: relative;
}

.about::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(to bottom, var(--saiyin-light), white);
}

.about-content {
    position: relative;
    z-index: 1;
}

.synergy {
    background: var(--saiyin-black);
    border-radius: 20px;
    padding: 60px;
    margin-bottom: 60px;
    position: relative;
    overflow: hidden;
}

.synergy::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 2px 2px, rgba(255,255,255,0.05) 1px, transparent 0);
    background-size: 30px 30px;
}

.synergy-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 40px;
    align-items: center;
    position: relative;
    z-index: 1;
}

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

.synergy-icon {
    width: 96px;
    height: 96px;
    background: var(--saiyin-red);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    box-shadow: 0 8px 30px rgba(184, 28, 43, 0.3);
}

.synergy-icon svg {
    width: 48px;
    height: 48px;
    color: white;
}

.synergy-icon.graphene {
    background: rgba(184, 28, 43, 0.8);
}

.graphene-icon {
    width: 48px;
    height: 48px;
    position: relative;
}

.graphene-icon::before,
.graphene-icon::after {
    content: '';
    position: absolute;
    inset: 0;
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 8px;
}

.graphene-icon::before {
    transform: rotate(45deg);
}

.graphene-icon::after {
    transform: rotate(-12deg);
    border-color: rgba(255,255,255,0.5);
}

.graphene-inner {
    position: absolute;
    inset: 8px;
    background: rgba(255,255,255,0.2);
    border-radius: 4px;
}

.synergy-item h3 {
    color: white;
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
}

.synergy-item p {
    color: var(--saiyin-gray);
    font-size: 14px;
    line-height: 1.6;
}

.synergy-connector {
    text-align: center;
}

.connector-line {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.connector-line span {
    flex: 1;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--saiyin-red), transparent);
}

.connector-line svg {
    width: 32px;
    height: 32px;
    color: var(--saiyin-red);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.connector-box {
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    padding: 16px;
}

.connector-box p {
    color: white;
    font-weight: 600;
    margin-bottom: 4px;
}

.connector-box span {
    color: var(--saiyin-gray);
    font-size: 13px;
}

.synergy-benefits {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-top: 40px;
    position: relative;
    z-index: 1;
}

.benefit-item {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 12px;
    padding: 16px;
    text-align: center;
}

.benefit-item h4 {
    color: white;
    font-weight: 600;
    margin-bottom: 4px;
}

.benefit-item p {
    color: var(--saiyin-gray);
    font-size: 13px;
}

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

.company-intro h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--saiyin-black);
    margin-bottom: 24px;
}

.company-intro p {
    color: var(--saiyin-gray);
    line-height: 1.8;
    margin-bottom: 16px;
}

.company-intro p span {
    color: var(--saiyin-red);
    font-weight: 600;
}

.vision-mission {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-top: 32px;
}

.vm-card {
    background: var(--saiyin-light);
    border-radius: 12px;
    padding: 24px;
}

.vm-card svg {
    width: 32px;
    height: 32px;
    color: var(--saiyin-red);
    margin-bottom: 12px;
}

.vm-card h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--saiyin-black);
    margin-bottom: 8px;
}

.vm-card p {
    font-size: 14px;
    color: var(--saiyin-gray);
    margin: 0;
}

.stats-timeline {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.stat-item {
    background: var(--saiyin-light);
    border-radius: 12px;
    padding: 24px;
    text-align: center;
    transition: all 0.3s;
}

.stat-item:hover {
    background: rgba(184, 28, 43, 0.05);
}

.stat-item svg {
    width: 32px;
    height: 32px;
    color: var(--saiyin-red);
    margin: 0 auto 12px;
}

.stat-item .value {
    font-size: 24px;
    font-weight: 700;
    color: var(--saiyin-black);
}

.stat-item .label {
    font-size: 13px;
    color: var(--saiyin-gray);
}

.timeline h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--saiyin-black);
    margin-bottom: 16px;
}

.timeline-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.timeline-item {
    display: flex;
    gap: 16px;
    padding: 16px;
    background: white;
    border: 1px solid var(--saiyin-light);
    border-radius: 12px;
    transition: all 0.3s;
}

.timeline-item:hover {
    border-color: rgba(184, 28, 43, 0.2);
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}

.timeline-year {
    width: 64px;
    height: 64px;
    background: var(--saiyin-red);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    flex-shrink: 0;
}

.timeline-content h5 {
    font-size: 16px;
    font-weight: 600;
    color: var(--saiyin-black);
    margin-bottom: 4px;
}

.timeline-content p {
    font-size: 14px;
    color: var(--saiyin-gray);
}

/* 页脚 */
.footer {
    background: var(--saiyin-black);
    color: white;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 2px 2px, rgba(255,255,255,0.05) 1px, transparent 0);
    background-size: 40px 40px;
}

.footer-top-line {
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(184, 28, 43, 0.5), transparent);
}

.footer-content {
    padding: 64px 0;
    position: relative;
    z-index: 1;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
}

.footer-brand {
    max-width: 400px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.footer-logo-icon {
    width: 48px;
    height: 48px;
    background: var(--saiyin-red);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.footer-logo-icon svg {
    width: 28px;
    height: 28px;
    color: white;
}

.footer-logo-text .brand {
    font-size: 20px;
    font-weight: 700;
}

.footer-logo-text .en {
    font-size: 12px;
    color: var(--saiyin-gray);
}

.footer-brand p {
    color: var(--saiyin-gray);
    line-height: 1.8;
    margin-bottom: 24px;
}

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

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

.contact-icon {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.05);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.contact-icon svg {
    width: 20px;
    height: 20px;
    color: white;
}

.contact-item .label {
    font-size: 12px;
    color: var(--saiyin-gray);
}

.contact-item .value {
    font-weight: 500;
}

.footer-links h4 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
}

.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: var(--saiyin-gray);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 4px;
    transition: all 0.3s;
}

.footer-links a:hover {
    color: white;
}

.footer-links a::after {
    content: '';
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 4px 0 4px 6px;
    border-color: transparent transparent transparent var(--saiyin-red);
    opacity: 0;
    transition: all 0.3s;
}

.footer-links a:hover::after {
    opacity: 1;
}

.footer-slogan {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding: 32px 0;
    position: relative;
    z-index: 1;
}

.slogan-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
}

.slogan-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.slogan-icon {
    width: 40px;
    height: 40px;
    background: var(--saiyin-red);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slogan-icon svg {
    width: 20px;
    height: 20px;
    color: white;
}

.slogan-text {
    font-size: 18px;
    font-weight: 500;
}

.slogan-right {
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--saiyin-gray);
    font-size: 14px;
}

.footer-copyright {
    border-top: 1px solid rgba(255,255,255,0.05);
    background: rgba(0,0,0,0.2);
    padding: 24px 0;
    position: relative;
    z-index: 1;
}

.copyright-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    color: var(--saiyin-gray);
    font-size: 14px;
}

.copyright-links {
    display: flex;
    gap: 24px;
}

.copyright-links a {
    color: var(--saiyin-gray);
    text-decoration: none;
    transition: color 0.3s;
}

.copyright-links a:hover {
    color: white;
}

/* 响应式 */
@media (max-width: 1024px) {
    .value-cards {
        grid-template-columns: repeat(2, 1fr);
    }

    .product-grid,
    .tech-grid,
    .advantage-grid,
    .synergy-grid,
    .company-grid,
    .footer-grid,
    .sustain-content {
        grid-template-columns: 1fr;
    }

    .synergy-grid {
        gap: 32px;
    }

    .connector-line {
        transform: rotate(90deg);
    }

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

@media (max-width: 768px) {
    .nav-links,
    .nav-cta {
        display: none;
    }

    .hero-title {
        font-size: 28px;
    }

    .value-cards,
    .feature-grid,
    .stats-grid,
    .feature-cards,
    .synergy-benefits,
    .vision-mission,
    .stats-grid {
        grid-template-columns: 1fr;
    }

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

    .btn-primary,
    .btn-secondary {
        width: 100%;
        max-width: 280px;
        justify-content: center;
    }

    .advantages {
        padding: 40px 24px;
    }

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

    .synergy {
        padding: 40px 24px;
    }

    .synergy-benefits {
        grid-template-columns: 1fr;
    }

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

    .slogan-content,
    .copyright-content {
        flex-direction: column;
        text-align: center;
    }
}