/* 首页特定样式 */

/* ===== 英雄区 - 科技AI未来感升级版 ===== */
.hero {
    background: linear-gradient(135deg, #0052A3 0%, #0066CC 50%, #00B4D8 100%);
    color: var(--color-white);
    padding: 120px var(--spacing-lg) 100px;
    position: relative;
    overflow: hidden;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* 科技网格背景层 */
.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 600"><defs><pattern id="techGrid" x="0" y="0" width="60" height="60" patternUnits="userSpaceOnUse"><rect x="0" y="0" width="60" height="60" fill="none" stroke="rgba(255,255,255,0.08)" stroke-width="1"/><circle cx="0" cy="0" r="2" fill="rgba(255,255,255,0.15)"/></pattern></defs><rect width="1200" height="600" fill="url(%23techGrid)"/></svg>');
    opacity: 0.6;
    animation: gridFloat 8s ease-in-out infinite;
}

/* 光线扫描效果 */
.hero::after {
    content: '';
    position: absolute;
    top: -100%;
    left: -100%;
    right: -100%;
    bottom: -100%;
    background: linear-gradient(45deg, transparent 30%, rgba(255, 255, 255, 0.05) 50%, transparent 70%);
    animation: scanLine 3s linear infinite;
    z-index: 1;
}

/* 浮动的几何装饰元素 */
.hero-decoration {
    position: absolute;
    z-index: 1;
    border: 2px solid rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.hero-decoration-1 {
    width: 200px;
    height: 200px;
    top: 5%;
    right: 5%;
    border-radius: 30% 70% 70% 30% / 30% 30% 70% 70%;
    animation-duration: 8s;
    animation-delay: 0s;
}

.hero-decoration-2 {
    width: 150px;
    height: 150px;
    bottom: 10%;
    left: 3%;
    border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
    animation-duration: 10s;
    animation-delay: 1s;
}

.hero-decoration-3 {
    width: 100px;
    height: 100px;
    top: 50%;
    left: 8%;
    border: 2px solid rgba(255, 255, 255, 0.2);
    animation-duration: 7s;
    animation-delay: 2s;
}

.hero-decoration-4 {
    width: 120px;
    height: 120px;
    top: 15%;
    right: 15%;
    border: 2px solid rgba(255, 255, 255, 0.12);
    animation-duration: 9s;
    animation-delay: 0.5s;
}

/* 光点脉动效果 */
.hero-glow {
    position: absolute;
    background: radial-gradient(circle, rgba(255, 255, 255, 0.4) 0%, transparent 70%);
    border-radius: 50%;
    z-index: 1;
    animation: pulse-glow 4s ease-in-out infinite;
}

.hero-glow-1 {
    width: 300px;
    height: 300px;
    top: 10%;
    right: 20%;
    animation-delay: 0s;
}

.hero-glow-2 {
    width: 250px;
    height: 250px;
    bottom: 20%;
    left: 15%;
    animation-delay: 1.5s;
}

.hero-content {
    position: relative;
    z-index: 3;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    backdrop-filter: blur(0px);
}

.hero-title {
    font-size: 64px;
    font-weight: 900;
    margin-bottom: var(--spacing-base);
    line-height: 1.15;
    animation: fadeInDown 0.8s ease-out;
    background: linear-gradient(135deg, #ffffff 0%, #e6f2ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 2px 10px rgba(255, 255, 255, 0.2);
    letter-spacing: -1px;
}

.hero-subtitle {
    font-size: 22px;
    margin-bottom: var(--spacing-lg);
    opacity: 0.98;
    animation: fadeInUp 0.8s ease-out 0.2s both;
    font-weight: 600;
    letter-spacing: 0.5px;
    color: rgba(255, 255, 255, 0.95);
}

.hero-description {
    font-size: 17px;
    margin-bottom: var(--spacing-3xl);
    opacity: 0.88;
    line-height: 1.8;
    animation: fadeInUp 0.8s ease-out 0.4s both;
    color: rgba(255, 255, 255, 0.85);
    font-weight: 500;
}

.hero .btn-primary {
    background: linear-gradient(135deg, #ffffff 0%, #f0f8ff 100%);
    color: var(--color-primary);
    animation: fadeInUp 0.8s ease-out 0.6s both;
    font-weight: 700;
    box-shadow: 0 8px 32px rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
    overflow: hidden;
}

.hero .btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: rgba(0, 180, 216, 0.1);
    transition: left 0.4s ease;
    z-index: -1;
}

.hero .btn-primary:hover {
    background: linear-gradient(135deg, #f0f8ff 0%, #ffffff 100%);
    color: #0052A3;
    box-shadow: 0 12px 48px rgba(255, 255, 255, 0.3);
    transform: translateY(-4px);
    border-color: rgba(255, 255, 255, 0.5);
}

.hero .btn-primary:hover::before {
    left: 0;
}

/* 波浪过渡 */
.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 60px;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1200 60" preserveAspectRatio="none"><path d="M0,30 Q300,0 600,30 T1200,30 L1200,60 L0,60 Z" fill="%23ffffff"/></svg>');
    background-size: 600px 60px;
    background-repeat: repeat-x;
    background-position: 0 0;
    animation: wave 15s linear infinite;
}

@keyframes wave {
    0% {
        background-position: 0 0;
    }
    100% {
        background-position: 600px 0;
    }
}

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

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

/* 科技网格浮动动画 */
@keyframes gridFloat {
    0%, 100% {
        opacity: 0.6;
        transform: translateY(0px) rotate(0deg);
    }
    50% {
        opacity: 0.8;
        transform: translateY(-10px) rotate(1deg);
    }
}

/* 光线扫描动画 */
@keyframes scanLine {
    0% {
        transform: translateX(-100%) translateY(-100%);
    }
    100% {
        transform: translateX(100%) translateY(100%);
    }
}

/* 光点脉动动画 */
@keyframes pulse-glow {
    0%, 100% {
        opacity: 0.3;
        transform: scale(1);
    }
    50% {
        opacity: 0.6;
        transform: scale(1.1);
    }
}

/* 浮动动画（用于几何装饰） */
@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
    }
    25% {
        transform: translateY(-20px) rotate(5deg);
    }
    50% {
        transform: translateY(0px) rotate(0deg);
    }
    75% {
        transform: translateY(-15px) rotate(-3deg);
    }
}

/* ===== 优势区 ===== */
.advantages {
    padding: var(--spacing-5xl) var(--spacing-lg);
    background: var(--color-white);
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-2xl);
}

/* ===== 产品展示 ===== */
.products-preview {
    padding: var(--spacing-5xl) var(--spacing-lg);
    background: var(--color-light);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-2xl);
}

/* ===== 服务亮点 ===== */
.services-highlight {
    padding: var(--spacing-5xl) var(--spacing-lg);
    background: var(--color-white);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-2xl);
}

/* ===== 案例展示 ===== */
.cases-preview {
    padding: var(--spacing-5xl) var(--spacing-lg);
    background: var(--color-light);
}

.cases-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-2xl);
}

/* ===== 团队展示 ===== */
.team-preview {
    padding: var(--spacing-5xl) var(--spacing-lg);
    background: var(--color-white);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-2xl);
}

/* ===== 合作伙伴 ===== */
.partners {
    padding: var(--spacing-5xl) var(--spacing-lg);
    background: var(--color-light);
}

.partners-grid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: var(--spacing-lg);
}

/* ===== 新闻展示 ===== */
.news-preview {
    padding: var(--spacing-5xl) var(--spacing-lg);
    background: var(--color-white);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-2xl);
}

/* ===== CTA 区 ===== */
.cta-section {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
    color: var(--color-white);
    padding: var(--spacing-5xl) var(--spacing-lg);
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -200px;
    right: -100px;
    width: 600px;
    height: 600px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.cta-section::after {
    content: '';
    position: absolute;
    bottom: -150px;
    left: -100px;
    width: 500px;
    height: 500px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: 50%;
    animation: float 8s ease-in-out infinite 1s;
}

.cta-decoration {
    position: absolute;
    border-radius: 50%;
    opacity: 0.05;
    animation: pulse 4s ease-in-out infinite;
}

.cta-deco-1 {
    width: 300px;
    height: 300px;
    top: 10%;
    left: 5%;
    border: 2px solid var(--color-white);
    animation-delay: 0s;
}

.cta-deco-2 {
    width: 200px;
    height: 200px;
    bottom: 15%;
    right: 10%;
    border: 2px solid var(--color-white);
    animation-delay: 1s;
}

.cta-deco-3 {
    width: 150px;
    height: 150px;
    top: 50%;
    right: 5%;
    border: 2px solid var(--color-white);
    animation-delay: 2s;
}

.cta-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-4xl);
    align-items: center;
    position: relative;
    z-index: 1;
}

.cta-main h2 {
    font-size: 48px;
    margin-bottom: var(--spacing-lg);
    line-height: 1.2;
    font-weight: var(--font-weight-bold);
}

.cta-main p {
    font-size: var(--font-size-h3);
    margin-bottom: var(--spacing-2xl);
    opacity: 0.95;
    line-height: 1.6;
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-3xl);
}

.cta-section .btn-primary {
    background-color: var(--color-white);
    color: var(--color-primary);
    border-color: var(--color-white);
    position: relative;
    overflow: hidden;
    font-weight: var(--font-weight-bold);
    letter-spacing: 0.5px;
}

.cta-section .btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--color-accent);
    transition: left var(--transition-base);
    z-index: -1;
}

.cta-section .btn-primary:hover::before {
    left: 0;
}

.cta-section .btn-primary:hover {
    background-color: var(--color-accent);
    color: var(--color-white);
    border-color: var(--color-accent);
    box-shadow: 0 12px 40px rgba(0, 102, 204, 0.3);
    transform: translateY(-3px);
}

.cta-section .btn-secondary {
    border: 2px solid var(--color-white);
    color: var(--color-white);
    background: transparent;
}

.cta-section .btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.2);
    border-color: var(--color-white);
    color: var(--color-white);
}

/* CTA 特性栏 - 2x2四象限布局 */
.cta-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-2xl);
}

.cta-feature-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    gap: var(--spacing-base);
    padding: var(--spacing-2xl) var(--spacing-lg);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.12) 0%, rgba(255, 255, 255, 0.06) 100%);
    border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.25);
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
    position: relative;
    overflow: hidden;
    min-height: 120px;
}

/* 四象限位置特殊效果 */
.cta-feature-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at center, rgba(255, 255, 255, 0.1) 0%, transparent 70%);
    pointer-events: none;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.cta-feature-item:nth-child(1) {
    /* 左上象限 */
    border-top: 2px solid rgba(255, 255, 255, 0.4);
    border-left: 2px solid rgba(255, 255, 255, 0.4);
}

.cta-feature-item:nth-child(2) {
    /* 右上象限 */
    border-top: 2px solid rgba(255, 255, 255, 0.4);
    border-right: 2px solid rgba(255, 255, 255, 0.4);
}

.cta-feature-item:nth-child(3) {
    /* 左下象限 */
    border-bottom: 2px solid rgba(255, 255, 255, 0.4);
    border-left: 2px solid rgba(255, 255, 255, 0.4);
}

.cta-feature-item:nth-child(4) {
    /* 右下象限 */
    border-bottom: 2px solid rgba(255, 255, 255, 0.4);
    border-right: 2px solid rgba(255, 255, 255, 0.4);
}

.cta-feature-item:hover {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.18) 0%, rgba(255, 255, 255, 0.12) 100%);
    border-color: rgba(255, 255, 255, 0.5);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    transform: translateY(-8px);
}

.cta-feature-item:nth-child(1):hover {
    /* 左上：向左上浮起 */
    transform: translateY(-8px) translateX(-4px);
}

.cta-feature-item:nth-child(2):hover {
    /* 右上：向右上浮起 */
    transform: translateY(-8px) translateX(4px);
}

.cta-feature-item:nth-child(3):hover {
    /* 左下：向左下浮起 */
    transform: translateY(-8px) translateX(-4px);
}

.cta-feature-item:nth-child(4):hover {
    /* 右下：向右下浮起 */
    transform: translateY(-8px) translateX(4px);
}

.cta-feature-item:hover::before {
    opacity: 1;
}

.cta-feature-icon {
    width: 0;
    height: 0;
    display: none;
    flex-shrink: 0;
    transition: all 0.3s ease;
}

.cta-feature-item:hover .cta-feature-icon {
    display: none;
}

.cta-feature-text h4 {
    font-size: 28px;
    margin-bottom: 6px;
    color: var(--color-white);
    font-weight: var(--font-weight-bold);
    letter-spacing: 0.5px;
}

.cta-feature-text span {
    font-size: var(--font-size-small);
    color: rgba(255, 255, 255, 0.85);
    font-weight: var(--font-weight-semibold);
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 0.05;
    }
    50% {
        transform: scale(1.1);
        opacity: 0.1;
    }
}

/* ===== 全局样式 ===== */
body {
    background-color: var(--color-white);
}

section {
    scroll-behavior: smooth;
}

/* ===== 动画效果 ===== */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* 页面加载动画 */
body {
    animation: fadeIn 0.5s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}