/* style.css */
/* 基础重置与字体 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: #0b0b0f;
    color: #eaeaf0;
    line-height: 1.5;
    scroll-behavior: smooth;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 32px;
}

/* 渐变与高亮类 */
.accent-glow {
    background: linear-gradient(135deg, #f43f5e, #c026d3, #7c3aed);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    font-weight: 700;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
    line-height: 1.2;
}

.section-sub {
    font-size: 1.125rem;
    color: #a0a0b0;
    max-width: 720px;
    margin-bottom: 3rem;
}

.logo {
    display: flex;
    align-items: center;
}

.logo img {
    height: 38px;
    width: auto;
    display: block;
    filter: brightness(0) invert(1);
}

.logo:hover img {
    opacity: 0.8;
}

@media (max-width: 600px) {
    .logo img {
        height: 32px;
    }
}

/* 按钮 */
.btn {
    display: inline-block;
    padding: 12px 32px;
    border-radius: 40px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s ease;
    border: 1px solid transparent;
}

.btn-primary {
    background: linear-gradient(135deg, #f43f5e, #c026d3);
    color: white;
    box-shadow: 0 10px 20px -8px rgba(244, 63, 94, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    filter: brightness(1.1);
    box-shadow: 0 20px 25px -8px rgba(192, 38, 211, 0.5);
}

.btn-outline {
    border-color: #3f3f5e;
    color: #eaeaf0;
}

.btn-outline:hover {
    border-color: #f43f5e;
    background: rgba(244, 63, 94, 0.1);
}

/* 导航栏 */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 0;
    flex-wrap: wrap;
    border-bottom: 1px solid #1f1f2e;
}

.logo {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    background: linear-gradient(145deg, #ffffff, #c0c0ff);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.nav-links {
    display: flex;
    gap: 40px;
    font-weight: 500;
}

.nav-links a {
    color: #b0b0c0;
    text-decoration: none;
    transition: color 0.2s;
}

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

/* 卡片通用 */
.card-dark {
    background: #14141f;
    border-radius: 32px;
    padding: 32px;
    border: 1px solid #2a2a3a;
    backdrop-filter: blur(4px);
    transition: all 0.3s;
}

.card-dark:hover {
    border-color: #7c3aed;
    box-shadow: 0 20px 30px -20px #a855f7;
}

/* 首页首屏 */
.hero {
    padding: 60px 0 80px 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: center;
}

.hero h1 {
    font-size: 3.8rem;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
}

.hero-desc {
    font-size: 1.25rem;
    color: #b0b0c0;
    margin: 24px 0 32px;
    max-width: 500px;
}

.hero-btns {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

/* Right visual block */
.hero-visual {
    background: radial-gradient(circle at 30% 50%, #2d2d5e, #0b0b0f);
    border-radius: 48px;
    padding: 20px;
    min-height: 320px;
    display: flex;
    align-items: stretch;
    justify-content: stretch;
    border: 1px solid #3f3f5e;
    position: relative;
    overflow: hidden;
}

/* Hero image wrapper */
.hero-image-link {
    display: block;
    width: 100%;
    height: 100%;
    text-decoration: none;
}

/* Hero image itself */
.hero-image-link img {
    width: 100%;
    height: 100%;
    min-height: 280px;
    display: block;
    object-fit: cover;
    object-position: center;
    border-radius: 30px;
    filter: none;
}


/* 全球实体条 */
.global-strip {
    background: #1a1a28;
    border-radius: 60px;
    padding: 24px 40px;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    margin: 40px 0 60px;
    border: 1px solid #33334e;
}

.global-item {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
}

.global-item span {
    font-size: 1.8rem;
}

/* 双轮驱动网格 */
.dual-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin: 40px 0;
}

.dual-card {
    background: linear-gradient(145deg, #161622, #0e0e16);
    border-radius: 36px;
    padding: 40px 32px;
    border: 1px solid #2c2c44;
}

.tag {
    background: #2a2a44;
    color: #b3b3ff;
    padding: 6px 14px;
    border-radius: 40px;
    font-size: 0.85rem;
    font-weight: 600;
    display: inline-block;
    margin-bottom: 20px;
    letter-spacing: 0.5px;
}

/* ip云墙 */
.ip-wall {
    display: flex;
    flex-wrap: wrap;
    gap: 16px 24px;
    justify-content: center;
    margin: 40px 0;
    background: #0f0f18;
    padding: 40px;
    border-radius: 48px;
    border: 1px solid #2c2c44;
}

.ip-item {
    background: #202033;
    padding: 12px 24px;
    border-radius: 40px;
    font-weight: 500;
    color: #d0d0ff;
    border: 1px solid #3a3a60;
    transition: 0.2s;
    font-size: 1.1rem;
    cursor: default;
}

.ip-item:hover {
    border-color: #f43f5e;
    background: #2e2e4a;
    transform: scale(1.05);
}

/* 案例卡片 */
.case-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin: 40px 0;
}

.case-card {
    background: #14141f;
    border-radius: 28px;
    overflow: hidden;
    border: 1px solid #2f2f4a;
}

.case-img {
    height: 180px;
    background: linear-gradient(145deg, #2d2d5e, #1a1a32);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #a0a0ff;
    font-weight: 600;
    font-size: 1.2rem;
}

.case-desc {
    padding: 24px;
}

.case-desc h4 {
    font-size: 1.3rem;
    margin-bottom: 8px;
}

.case-desc p {
    color: #a0a0b5;
}

/* 愿景大模块 */
.vision-block {
    background: linear-gradient(135deg, #1b1b2f, #12121e);
    border-radius: 56px;
    padding: 64px 48px;
    margin: 60px 0;
    border: 1px solid #3d3d66;
    text-align: center;
}

.footer {
    border-top: 1px solid #24243a;
    padding: 48px 0 32px;
    margin-top: 60px;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 60px;
    justify-content: space-between;
    align-items: center;
}

.copyright {
    color: #6b6b8b;
    font-size: 0.9rem;
    margin-top: 40px;
    text-align: center;
}

/* 移动端响应式 */
/* 导航栏优化 */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 0;
    flex-wrap: wrap;
    gap: 16px;
    border-bottom: 1px solid #1f1f2e;
}

.nav-links {
    display: flex;
    gap: 28px;
    font-weight: 500;
    flex-wrap: wrap;
    justify-content: center;
    flex: 1;
    min-width: 0;
}

.nav-links a {
    color: #b0b0c0;
    text-decoration: none;
    transition: color 0.2s;
    white-space: nowrap;
}

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

/* 移动端响应式 */
@media (max-width: 900px) {
    .hero { grid-template-columns: 1fr; }
    .dual-grid { grid-template-columns: 1fr; }
    .case-grid { grid-template-columns: 1fr; }
    .section-title { font-size: 2rem; }
    .hero h1 { font-size: 2.8rem; }
    .global-strip { flex-direction: column; align-items: flex-start; gap: 16px; }
    .footer-links { flex-direction: column; align-items: flex-start; gap: 24px; }

    .navbar {
        flex-direction: column;
        align-items: flex-start;
    }

    .nav-links {
        width: 100%;
        justify-content: flex-start;
        gap: 14px 20px;
    }

    .btn.btn-outline {
        align-self: flex-start;
    }
}

@media (max-width: 600px) {
    .container {
        padding: 0 20px;
    }

    .logo {
        font-size: 1.6rem;
    }

    .nav-links {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .nav-links a {
        font-size: 0.95rem;
    }

    .btn.btn-outline {
        padding: 8px 18px !important;
        font-size: 0.95rem;
    }
}

.nav-cta {
    padding: 8px 24px;
}

html {
    scroll-behavior: smooth;
}

.about-section-pro {
    background: linear-gradient(180deg, #050505 0%, #0b0b0f 100%);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 40px;
    padding: 64px;
    margin: 80px 0;
    box-shadow: 0 20px 60px rgba(0,0,0,0.35);
}

.about-header {
    margin-bottom: 36px;
}

.about-label {
    display: inline-block;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: #86efac;
    margin-bottom: 16px;
}

.about-title-pro {
    font-size: clamp(2.8rem, 6vw, 4.5rem);
    line-height: 1.05;
    font-weight: 800;
    color: #ffffff;
    margin: 0;
}

.about-main {
    display: grid;
    grid-template-columns: 1.8fr 0.9fr;
    gap: 40px;
    align-items: start;
}

.about-content {
    max-width: 920px;
}

.about-lead {
    font-size: 1.5rem;
    line-height: 1.65;
    color: #ffffff;
    font-weight: 600;
    margin-bottom: 28px;
}

.about-paragraph {
    font-size: 1.08rem;
    line-height: 1.95;
    color: #cfcfda;
    margin-bottom: 22px;
}

.about-side {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.about-stat-card {
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.07);
    border-radius: 24px;
    padding: 24px;
    backdrop-filter: blur(8px);
}

.about-stat-number {
    font-size: 1.4rem;
    font-weight: 800;
    color: #ffffff;
    margin-bottom: 10px;
}

.about-stat-text {
    color: #b8b8c7;
    line-height: 1.7;
    font-size: 0.98rem;
}

.about-bottom {
    margin-top: 42px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
    flex-wrap: wrap;
}

.about-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.about-tag {
    display: inline-flex;
    align-items: center;
    padding: 10px 18px;
    border-radius: 999px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.08);
    color: #d8d8e8;
    font-size: 0.95rem;
}

.about-cta {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 28px;
    border-radius: 999px;
    background: #84cc16;
    color: #111 !important;
    text-decoration: none;
    font-weight: 800;
    font-size: 1rem;
    transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.about-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 30px rgba(132, 204, 22, 0.28);
}

@media (max-width: 980px) {
    .about-section-pro {
        padding: 40px 28px;
        border-radius: 28px;
    }

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

    .about-lead {
        font-size: 1.2rem;
    }

    .about-bottom {
        flex-direction: column;
        align-items: flex-start;
    }
}