/* assets/css/style.css */

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

body {
    font-family: Arial, Helvetica, sans-serif;
    line-height: 1.6;
    color: #111;
    background: #fff;
}

/* Header */
header {
    background: #111;
    color: #fff;
    position: sticky;
    top: 0;
    z-index: 999;
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: auto;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    font-size: 22px;
    font-weight: bold;
    color: #FF6B4A;
}

.nav-links {
    display: flex;
    gap: 20px;
}

.nav-links a {
    color: #fff;
    text-decoration: none;
    font-size: 14px;
    position: relative;
}

.nav-links a.active,
.nav-links a:hover {
    color: #00FFC6;
}

/* Mobile */
.menu-toggle {
    display: none;
    font-size: 24px;
    cursor: pointer;
}

/* Hero */
.hero {
    background: linear-gradient(135deg, #7B3FE4, #FF6B4A);
    color: #fff;
    padding: 80px 0;
}

.hero h1 {
    font-size: 48px;
    line-height: 1.2;
    margin-bottom: 20px;
}

.hero p {
    max-width: 500px;
}

.hero-grid {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.hero img {
    width: 100%;
    max-width: 400px;
}

/* Sections */
.section {
    padding: 60px 0;
}

.section.dark {
    background: #111;
    color: #fff;
}

.section.gradient {
    background: linear-gradient(135deg, #111, #7B3FE4, #00FFC6);
    color: #fff;
}

.section h2 {
    margin-bottom: 20px;
    font-size: 32px;
}

/* Cards */
.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.card {
    background: #fff;
    padding: 20px;
    border-radius: 8px;
    transition: 0.3s;
    border: 1px solid #eee;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.1);
}

.dark .card {
    background: #222;
    border: none;
}

/* Split layout */
.split {
    display: flex;
    gap: 40px;
    align-items: center;
}

.split img {
    width: 100%;
    max-width: 500px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 10px 20px;
    background: #FF6B4A;
    color: #fff;
    text-decoration: none;
    margin-top: 15px;
}

.btn:hover {
    background: #7B3FE4;
}

/* Footer */
footer {
    background: #111;
    color: #ccc;
    padding: 40px 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
}

footer h4 {
    margin-bottom: 10px;
    color: #fff;
}

footer a {
    color: #ccc;
    text-decoration: none;
    display: block;
    margin-bottom: 5px;
}

footer a:hover {
    color: #FF6B4A;
}

.footer-bottom {
    text-align: center;
    margin-top: 20px;
    font-size: 13px;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
        flex-direction: column;
        background: #111;
        position: absolute;
        top: 60px;
        right: 0;
        width: 100%;
        padding: 20px;
    }

    .nav-links.active {
        display: flex;
    }

    .menu-toggle {
        display: block;
    }

    .hero-grid {
        flex-direction: column;
    }

    .split {
        flex-direction: column;
    }
}
img {
max-width: 100%;
height: auto;
display: block;
}
/* ===== Cooperation Process Upgrade ===== */

.cards .card h3 {
    font-size: 28px;
    color: #FF6B4A;
    margin-bottom: 10px;
}

.cards .card h4 {
    font-size: 18px;
    margin-bottom: 10px;
}

.cards .card {
    position: relative;
    overflow: hidden;
}

/* 渐变边框效果 */
.cards .card::before {
    content: "";
    position: absolute;
    inset: 0;
    padding: 1px;
    background: linear-gradient(135deg, #7B3FE4, #FF6B4A, #00FFC6);
    -webkit-mask:
        linear-gradient(#fff 0 0) content-box,
        linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
}

/* hover动效 */
.cards .card:hover {
    transform: translateY(-10px) scale(1.02);
}

/* 数字样式增强 */
.cards .card h3 {
    font-weight: bold;
    letter-spacing: 2px;
}

/* 可选：加连接线效果（桌面端） */
@media (min-width: 768px) {
    .cards {
        position: relative;
    }

    .cards::after {
        content: "";
        position: absolute;
        top: 50%;
        left: 5%;
        right: 5%;
        height: 2px;
        background: linear-gradient(90deg, #7B3FE4, #00FFC6);
        z-index: 0;
    }

    .card {
        z-index: 1;
    }
}
/* ===== Process Advanced Design ===== */

.process .card {
    background: rgba(255,255,255,0.08);
    border-radius: 12px;
    padding: 30px 20px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
    position: relative;
    transition: 0.3s;
    color: #fff;
}

.process .card:hover {
    transform: translateY(-12px) scale(1.03);
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

/* 数字圆圈 */
.process .step {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, #FF6B4A, #7B3FE4);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    margin-bottom: 15px;
    font-size: 16px;
}

/* 标题 */
.process h4 {
    margin-bottom: 10px;
    font-size: 18px;
}

/* 文本 */
.process p {
    font-size: 14px;
    color: rgba(255,255,255,0.8);
}

/* 横向连接线（高级感关键） */
@media (min-width: 768px) {
    .process {
        position: relative;
    }

    .process::before {
        content: "";
        position: absolute;
        top: 60px;
        left: 5%;
        right: 5%;
        height: 2px;
        background: linear-gradient(90deg, #FF6B4A, #00FFC6);
        z-index: 0;
    }

    .process .card {
        z-index: 1;
    }
}
/* ===== Mission Vision Upgrade ===== */

.mission .card {
    background: rgba(255,255,255,0.08);
    border-radius: 12px;
    padding: 30px 20px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
    color: #fff;
    transition: 0.3s;
}

.mission .card:hover {
    transform: translateY(-10px) scale(1.03);
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

/* 圆形图标 */
.mission .icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: linear-gradient(135deg, #FF6B4A, #7B3FE4);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    margin-bottom: 15px;
}

/* 标题 */
.mission h4 {
    font-size: 18px;
    margin-bottom: 10px;
}

/* 文本 */
.mission p {
    font-size: 14px;
    color: rgba(255,255,255,0.85);
}