/* SGEO.pro - 黑金色尊贵风格样式 */
:root {
    --gold-primary: #D4AF37;
    --gold-light: #F4E4BA;
    --gold-dark: #B8960C;
    --black-primary: #0A0A0A;
    --black-secondary: #1A1A1A;
    --black-tertiary: #2D2D2D;
    --white: #FFFFFF;
    --gray-light: #F5F5F5;
    --gray: #888888;
    --success: #4CAF50;
    --danger: #F44336;
}

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

body {
    font-family: 'PingFang SC', 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--black-primary);
    color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

/* 背景效果 */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(ellipse at 20% 20%, rgba(212, 175, 55, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(212, 175, 55, 0.05) 0%, transparent 50%),
        linear-gradient(180deg, var(--black-primary) 0%, var(--black-secondary) 100%);
    z-index: -1;
}

/* 科技线条背景 */
.tech-lines {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
}

.tech-line {
    position: absolute;
    background: linear-gradient(90deg, transparent, rgba(212, 175, 55, 0.1), transparent);
    height: 1px;
    animation: scanLine 8s linear infinite;
}

.tech-line:nth-child(1) { top: 20%; width: 100%; animation-delay: 0s; }
.tech-line:nth-child(2) { top: 40%; width: 80%; animation-delay: 2s; }
.tech-line:nth-child(3) { top: 60%; width: 90%; animation-delay: 4s; }
.tech-line:nth-child(4) { top: 80%; width: 70%; animation-delay: 6s; }

@keyframes scanLine {
    0% { transform: translateX(-100%); opacity: 0; }
    50% { opacity: 1; }
    100% { transform: translateX(100%); opacity: 0; }
}

/* 导航栏 */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(212, 175, 55, 0.2);
    z-index: 1000;
    padding: 0 5%;
}

.navbar-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
    max-width: 1400px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--gold-primary), var(--gold-dark));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    font-weight: bold;
    color: var(--black-primary);
    box-shadow: 0 4px 20px rgba(212, 175, 55, 0.3);
}

.logo-text {
    font-size: 24px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--gold-primary), var(--gold-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.logo-sub {
    font-size: 10px;
    color: var(--gray);
    letter-spacing: 2px;
    text-transform: uppercase;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 40px;
    list-style: none;
}

.nav-links a {
    color: var(--white);
    text-decoration: none;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.3s ease;
    position: relative;
    padding: 8px 0;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--gold-primary), var(--gold-light));
    transition: width 0.3s ease;
}

.nav-links a:hover {
    color: var(--gold-primary);
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.lang-switch {
    display: flex;
    gap: 8px;
}

.lang-btn {
    padding: 6px 12px;
    border: 1px solid rgba(212, 175, 55, 0.3);
    background: transparent;
    color: var(--gray);
    font-size: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    border-radius: 4px;
}

.lang-btn.active {
    background: var(--gold-primary);
    color: var(--black-primary);
    border-color: var(--gold-primary);
}

.btn-gold {
    padding: 12px 28px;
    background: linear-gradient(135deg, var(--gold-primary), var(--gold-dark));
    color: var(--black-primary);
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    box-shadow: 0 4px 20px rgba(212, 175, 55, 0.3);
}

.btn-gold:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(212, 175, 55, 0.4);
}

.btn-outline {
    padding: 12px 28px;
    background: transparent;
    color: var(--gold-primary);
    border: 1px solid var(--gold-primary);
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
}

.btn-outline:hover {
    background: var(--gold-primary);
    color: var(--black-primary);
}

/* 主内容区域 */
main {
    padding-top: 80px;
}

/* 英雄区域 */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 100px 5%;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, rgba(212, 175, 55, 0.1) 0%, transparent 70%);
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); opacity: 0.5; }
    50% { transform: translate(-50%, -50%) scale(1.2); opacity: 0.8; }
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(212, 175, 55, 0.1);
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: 30px;
    margin-bottom: 30px;
}

.hero-badge-dot {
    width: 8px;
    height: 8px;
    background: var(--gold-primary);
    border-radius: 50%;
    animation: blink 1.5s infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.3; }
}

.hero-badge-text {
    font-size: 13px;
    color: var(--gold-primary);
    letter-spacing: 1px;
}

.hero-title {
    font-size: 72px;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
    background: linear-gradient(135deg, var(--white) 0%, var(--gold-light) 50%, var(--gold-primary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 24px;
    color: var(--gray);
    margin-bottom: 40px;
    font-weight: 400;
}

.hero-desc {
    font-size: 18px;
    color: var(--gray);
    margin-bottom: 50px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-actions {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-top: 80px;
    padding-top: 60px;
    border-top: 1px solid rgba(212, 175, 55, 0.2);
}

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

.stat-number {
    font-size: 48px;
    font-weight: 700;
    color: var(--gold-primary);
    line-height: 1;
}

.stat-label {
    font-size: 14px;
    color: var(--gray);
    margin-top: 8px;
}

/* 页面标题区域 */
.page-header {
    padding: 160px 5% 80px;
    text-align: center;
    position: relative;
    background: linear-gradient(180deg, var(--black-secondary) 0%, var(--black-primary) 100%);
}

.page-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 400px;
    background: radial-gradient(ellipse, rgba(212, 175, 55, 0.1) 0%, transparent 70%);
}

.page-title {
    font-size: 56px;
    font-weight: 700;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--white), var(--gold-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    position: relative;
}

.page-subtitle {
    font-size: 20px;
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto;
}

/* 内容区块 */
.section {
    padding: 100px 5%;
    max-width: 1400px;
    margin: 0 auto;
}

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

.section-tag {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(212, 175, 55, 0.1);
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: 30px;
    font-size: 13px;
    color: var(--gold-primary);
    letter-spacing: 2px;
    text-transform: uppercase;
    margin-bottom: 20px;
}

.section-title {
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 16px;
}

.section-desc {
    font-size: 18px;
    color: var(--gray);
    max-width: 700px;
    margin: 0 auto;
}

/* 卡片网格 */
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.card {
    background: var(--black-secondary);
    border: 1px solid rgba(212, 175, 55, 0.1);
    border-radius: 16px;
    padding: 40px;
    transition: all 0.4s ease;
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, var(--gold-primary), var(--gold-light));
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.card:hover {
    transform: translateY(-8px);
    border-color: rgba(212, 175, 55, 0.3);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

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

.card-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, rgba(212, 175, 55, 0.2), rgba(212, 175, 55, 0.05));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
    margin-bottom: 24px;
}

.card-title {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 12px;
}

.card-text {
    font-size: 15px;
    color: var(--gray);
    line-height: 1.7;
}

/* GEO 定义区块 */
.geo-definition {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    padding: 100px 5%;
    max-width: 1400px;
    margin: 0 auto;
}

.geo-definition-content {
    position: relative;
}

.geo-definition-label {
    font-size: 14px;
    color: var(--gold-primary);
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-bottom: 20px;
}

.geo-definition-title {
    font-size: 48px;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 30px;
}

.geo-definition-title span {
    background: linear-gradient(135deg, var(--gold-primary), var(--gold-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.geo-definition-text {
    font-size: 17px;
    color: var(--gray);
    line-height: 1.8;
    margin-bottom: 40px;
}

.geo-definition-visual {
    position: relative;
    height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.geo-circle {
    position: absolute;
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 50%;
    animation: rotate 20s linear infinite;
}

.geo-circle:nth-child(1) {
    width: 400px;
    height: 400px;
}

.geo-circle:nth-child(2) {
    width: 300px;
    height: 300px;
    animation-direction: reverse;
    animation-duration: 15s;
}

.geo-circle:nth-child(3) {
    width: 200px;
    height: 200px;
    animation-duration: 10s;
}

.geo-core {
    width: 120px;
    height: 120px;
    background: linear-gradient(135deg, var(--gold-primary), var(--gold-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
    font-weight: bold;
    color: var(--black-primary);
    box-shadow: 0 0 60px rgba(212, 175, 55, 0.5);
    position: relative;
    z-index: 1;
}

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

/* 对比表格 */
.comparison {
    padding: 100px 5%;
    background: var(--black-secondary);
}

.comparison-table {
    max-width: 1000px;
    margin: 0 auto;
    border-collapse: collapse;
    width: 100%;
}

.comparison-table th,
.comparison-table td {
    padding: 24px;
    text-align: left;
    border-bottom: 1px solid rgba(212, 175, 55, 0.1);
}

.comparison-table th {
    font-size: 14px;
    color: var(--gray);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.comparison-table .pro-col {
    background: rgba(212, 175, 55, 0.05);
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: 12px;
}

.comparison-table .pro-badge {
    display: inline-block;
    padding: 4px 12px;
    background: var(--gold-primary);
    color: var(--black-primary);
    font-size: 11px;
    font-weight: 600;
    border-radius: 20px;
    margin-left: 10px;
}

/* 公司信息区块 */
.company-info {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
    padding: 80px 5%;
    max-width: 1400px;
    margin: 0 auto;
}

.company-card {
    background: var(--black-secondary);
    border: 1px solid rgba(212, 175, 55, 0.1);
    border-radius: 16px;
    padding: 40px;
    text-align: center;
}

.company-logo {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--gold-primary), var(--gold-dark));
    border-radius: 20px;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    font-weight: bold;
    color: var(--black-primary);
}

.company-name {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

.company-desc {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.7;
}

/* 服务流程 */
.process-steps {
    display: flex;
    justify-content: space-between;
    gap: 30px;
    flex-wrap: wrap;
    max-width: 1200px;
    margin: 0 auto;
}

.process-step {
    flex: 1;
    min-width: 200px;
    text-align: center;
    position: relative;
}

.process-step:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 40px;
    right: -15px;
    width: 30px;
    height: 2px;
    background: linear-gradient(90deg, var(--gold-primary), transparent);
}

.step-number {
    width: 80px;
    height: 80px;
    background: var(--black-secondary);
    border: 2px solid var(--gold-primary);
    border-radius: 50%;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    font-weight: 700;
    color: var(--gold-primary);
}

.step-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
}

.step-desc {
    font-size: 14px;
    color: var(--gray);
}

/* 案例展示 */
.case-card {
    background: var(--black-secondary);
    border: 1px solid rgba(212, 175, 55, 0.1);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.4s ease;
}

.case-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4);
}

.case-image {
    height: 240px;
    background: linear-gradient(135deg, var(--black-tertiary), var(--black-secondary));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 64px;
    position: relative;
    overflow: hidden;
}

.case-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, transparent 60%, rgba(0, 0, 0, 0.8) 100%);
}

.case-content {
    padding: 30px;
}

.case-tag {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(212, 175, 55, 0.1);
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: 20px;
    font-size: 12px;
    color: var(--gold-primary);
    margin-bottom: 16px;
}

.case-title {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 12px;
}

.case-result {
    display: flex;
    gap: 30px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.case-stat {
    text-align: center;
}

.case-stat-value {
    font-size: 28px;
    font-weight: 700;
    color: var(--gold-primary);
}

.case-stat-label {
    font-size: 12px;
    color: var(--gray);
}

/* 新闻列表 */
.news-list {
    max-width: 900px;
    margin: 0 auto;
}

.news-item {
    display: grid;
    grid-template-columns: 200px 1fr;
    gap: 30px;
    padding: 30px;
    background: var(--black-secondary);
    border: 1px solid rgba(212, 175, 55, 0.1);
    border-radius: 12px;
    margin-bottom: 20px;
    transition: all 0.3s ease;
    cursor: pointer;
}

.news-item:hover {
    border-color: rgba(212, 175, 55, 0.3);
    transform: translateX(10px);
}

.news-date {
    font-size: 14px;
    color: var(--gold-primary);
    font-weight: 500;
}

.news-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 10px;
    transition: color 0.3s ease;
}

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

.news-excerpt {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.6;
}

/* 联系表单 */
.contact-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    padding: 100px 5%;
    max-width: 1400px;
    margin: 0 auto;
}

.contact-info h3 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 20px;
}

.contact-info p {
    font-size: 17px;
    color: var(--gray);
    margin-bottom: 40px;
    line-height: 1.8;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
}

.contact-icon {
    width: 48px;
    height: 48px;
    background: rgba(212, 175, 55, 0.1);
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.contact-text {
    font-size: 15px;
    color: var(--gray);
}

.contact-form {
    background: var(--black-secondary);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 20px;
    padding: 50px;
}

.form-title {
    font-size: 28px;
    font-weight: 600;
    margin-bottom: 30px;
    text-align: center;
}

.form-group {
    margin-bottom: 24px;
}

.form-label {
    display: block;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 10px;
    color: var(--white);
}

.form-label .required {
    color: var(--gold-primary);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 14px 18px;
    background: var(--black-primary);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 10px;
    color: var(--white);
    font-size: 15px;
    transition: all 0.3s ease;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--gold-primary);
    box-shadow: 0 0 20px rgba(212, 175, 55, 0.1);
}

.form-select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23D4AF37' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 18px center;
}

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

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-submit {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, var(--gold-primary), var(--gold-dark));
    border: none;
    border-radius: 10px;
    color: var(--black-primary);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 10px;
}

.form-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(212, 175, 55, 0.3);
}

.form-note {
    text-align: center;
    font-size: 13px;
    color: var(--gray);
    margin-top: 16px;
}

/* 页脚 */
.footer {
    background: var(--black-secondary);
    border-top: 1px solid rgba(212, 175, 55, 0.1);
    padding: 60px 5% 30px;
    margin-top: 100px;
}

.footer-content {
    max-width: 1400px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 60px;
}

.footer-brand .logo {
    margin-bottom: 20px;
}

.footer-brand p {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.7;
}

.footer-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--white);
}

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

.footer-links li {
    margin-bottom: 14px;
}

.footer-links a {
    color: var(--gray);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    max-width: 1400px;
    margin: 50px auto 0;
    padding-top: 30px;
    border-top: 1px solid rgba(212, 175, 55, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-copyright {
    font-size: 13px;
    color: var(--gray);
}

.footer-social {
    display: flex;
    gap: 16px;
}

.social-link {
    width: 40px;
    height: 40px;
    background: rgba(212, 175, 55, 0.1);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gold-primary);
    text-decoration: none;
    transition: all 0.3s ease;
}

.social-link:hover {
    background: var(--gold-primary);
    color: var(--black-primary);
}

/* 响应式设计 */
@media (max-width: 1024px) {
    .geo-definition {
        grid-template-columns: 1fr;
    }
    
    .contact-section {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .hero-title {
        font-size: 42px;
    }
    
    .hero-subtitle {
        font-size: 18px;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 30px;
    }
    
    .section-title {
        font-size: 32px;
    }
    
    .company-info {
        grid-template-columns: 1fr;
    }
    
    .process-steps {
        flex-direction: column;
    }
    
    .process-step::after {
        display: none;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .news-item {
        grid-template-columns: 1fr;
    }
}

/* 动画效果 */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeIn 0.8s ease forwards;
}

@keyframes fadeIn {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-delay-1 { animation-delay: 0.2s; }
.fade-in-delay-2 { animation-delay: 0.4s; }
.fade-in-delay-3 { animation-delay: 0.6s; }
.fade-in-delay-4 { animation-delay: 0.8s; }

/* 语言切换 */
[lang="en"] { display: none; }
.lang-active { display: block !important; }
.lang-active-en { display: none !important; }
body.lang-en [lang="zh"] { display: none; }
body.lang-en [lang="en"] { display: block !important; }
body.lang-en .lang-active { display: none !important; }
body.lang-en .lang-active-en { display: block !important; }

/* 表单成功消息 */
.form-success {
    display: none;
    text-align: center;
    padding: 40px;
}

.form-success.show {
    display: block;
}

.success-icon {
    width: 80px;
    height: 80px;
    background: rgba(76, 175, 80, 0.1);
    border: 2px solid var(--success);
    border-radius: 50%;
    margin: 0 auto 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 40px;
    color: var(--success);
}

.success-title {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 12px;
}

.success-text {
    color: var(--gray);
}

/* 后台样式 */
.admin-sidebar {
    position: fixed;
    left: 0;
    top: 0;
    width: 260px;
    height: 100vh;
    background: var(--black-secondary);
    border-right: 1px solid rgba(212, 175, 55, 0.1);
    padding: 30px 0;
    z-index: 100;
}

.admin-logo {
    padding: 0 30px;
    margin-bottom: 40px;
}

.admin-menu {
    list-style: none;
}

.admin-menu-item {
    margin-bottom: 8px;
}

.admin-menu-link {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 30px;
    color: var(--gray);
    text-decoration: none;
    font-size: 15px;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.admin-menu-link:hover,
.admin-menu-link.active {
    background: rgba(212, 175, 55, 0.05);
    color: var(--gold-primary);
    border-left-color: var(--gold-primary);
}

.admin-menu-icon {
    font-size: 18px;
    width: 24px;
    text-align: center;
}

.admin-main {
    margin-left: 260px;
    padding: 30px;
    min-height: 100vh;
    background: var(--black-primary);
}

.admin-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(212, 175, 55, 0.1);
}

.admin-title {
    font-size: 28px;
    font-weight: 600;
}

.admin-table {
    width: 100%;
    background: var(--black-secondary);
    border-radius: 12px;
    overflow: hidden;
}

.admin-table th,
.admin-table td {
    padding: 16px 20px;
    text-align: left;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.admin-table th {
    background: rgba(212, 175, 55, 0.05);
    font-size: 13px;
    font-weight: 600;
    color: var(--gold-primary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.admin-table tr:hover {
    background: rgba(212, 175, 55, 0.02);
}

.admin-badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.admin-badge-pending { background: rgba(255, 193, 7, 0.2); color: #FFC107; }
.admin-badge-progress { background: rgba(33, 150, 243, 0.2); color: #2196F3; }
.admin-badge-signed { background: rgba(76, 175, 80, 0.2); color: #4CAF50; }

.admin-btn {
    padding: 8px 16px;
    border: none;
    border-radius: 6px;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.admin-btn-primary {
    background: var(--gold-primary);
    color: var(--black-primary);
}

.admin-btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
}

.admin-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

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

.modal-content {
    background: var(--black-secondary);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 16px;
    padding: 40px;
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
}

.modal-title {
    font-size: 22px;
    font-weight: 600;
}

.modal-close {
    background: none;
    border: none;
    color: var(--gray);
    font-size: 24px;
    cursor: pointer;
}