/* ============================================================
   智营GEO 首页样式
   ============================================================ */

/* ============================================================
   1. 全局重置 — 干净明亮背景
   ============================================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-size: 16px;
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background: url('/assets/img/geo_index_bg.png') no-repeat center center / cover;
    color: #1a1a2e;
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
}

/* ============================================================
   2. 科技感网格线
   ============================================================ */
.grid-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(255, 150, 50, 0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 150, 50, 0.06) 1px, transparent 1px),
        linear-gradient(rgba(30, 128, 255, 0.04) 2px, transparent 2px),
        linear-gradient(90deg, rgba(30, 128, 255, 0.04) 2px, transparent 2px);
    background-size: 80px 80px, 80px 80px, 160px 160px, 160px 160px;
    animation: gridMove 30s linear infinite;
}

@keyframes gridMove {
    0% { background-position: 0 0, 0 0, 0 0, 0 0; }
    100% { background-position: 80px 80px, 80px 80px, 160px 160px, 160px 160px; }
}

/* ============================================================
   3. Canvas 粒子背景
   ============================================================ */
#particleCanvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 0;
    pointer-events: none;
}

/* ============================================================
   4. 主容器
   ============================================================ */
.container {
    position: relative;
    z-index: 1;
    max-width: 1280px;
    margin: 0 auto;
    padding: 2rem 2rem 1rem;
}

/* ============================================================
   5. 头部
   ============================================================ */
.hero {
    text-align: center;
    margin-bottom: 0;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 250px;
    background: radial-gradient(ellipse, rgba(255, 150, 50, 0.10) 0%, rgba(30, 128, 255, 0.04) 60%, transparent 70%);
    pointer-events: none;
    z-index: -1;
}

.logo {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.8rem;
    flex-wrap: wrap;
    margin-bottom: 0.4rem;
}

.logo h1 {
    font-size: 5rem;
    font-weight: 900;
    letter-spacing: -2px;
    background: linear-gradient(135deg, #f97316 0%, #fb923c 30%, #2563eb 70%, #1a1a2e 100%);
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: shimmerText 6s ease-in-out infinite alternate;
    line-height: 1.1;
}

@keyframes shimmerText {
    0% { background-position: 0% 50%; }
    100% { background-position: 100% 50%; }
}

.version {
    font-size: 1.3rem;
    font-weight: 700;
    color: #f97316;
    background: rgba(249, 115, 22, 0.08);
    padding: 0.15rem 1.1rem;
    border-radius: 60px;
    border: 1px solid rgba(249, 115, 22, 0.15);
    letter-spacing: 1px;
}

.event-theme {
    margin-top: 1.6rem;
    display: inline-block;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(249, 115, 22, 0.08);
    border-radius: 16px;
    padding: 0.7rem 2.5rem;
    box-shadow: 0 4px 30px rgba(249, 115, 22, 0.04);
}

.event-theme .main-slogan {
    font-size: 1.6rem;
    font-weight: 700;
    color: #1a1a2e;
    letter-spacing: 2px;
}
.event-theme .sub-slogan {
    font-size: 0.85rem;
    color: #6b7a99;
    letter-spacing: 4px;
    margin-top: 0.2rem;
}

.dual-badge {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(249, 115, 22, 0.12);
    border-radius: 80px;
    padding: 0.35rem 1.6rem;
    margin-top: 1rem;
    font-weight: 500;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
    color: #1a1a2e;
    transition: all 0.3s ease;
    cursor: default;
    box-shadow: 0 2px 20px rgba(249, 115, 22, 0.03);
}
.dual-badge:hover {
    border-color: rgba(249, 115, 22, 0.25);
    box-shadow: 0 4px 30px rgba(249, 115, 22, 0.08);
    transform: translateY(-2px);
}
.dual-badge .badge-icon { font-size: 1rem; }
.dual-badge .badge-divider {
    width: 1px;
    height: 14px;
    background: linear-gradient(to bottom, transparent, rgba(249, 115, 22, 0.2), transparent);
}

/* ============================================================
   6. 卡片网格
   ============================================================ */
.card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 0;
}

/* ============================================================
   7. 动态边框 (炫酷但不刺眼)
   ============================================================ */
.card-glow {
    padding: 6px;
    border-radius: 2rem;
    box-shadow: inset 5px 5px 10px #ffffff;
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.4s ease;
    display: flex;
    cursor: pointer;
    background: conic-gradient(from var(--a, 0deg),
            rgba(255, 255, 255, 0.4));
    backdrop-filter: blur(6px);
    opacity: 0;
    transform: translateY(-6px);
    animation: cardglowAni 5s linear forwards;
}

@keyframes cardglowAni {
    0% {
        box-shadow: inset 5px 5px 10px #ffffff;
    }
    50% {
        box-shadow: inset -5px -5px 10px #ffffff;
    }
    100% {
        box-shadow: inset 5px 5px 10px #ffffff;
    }
}

.card-glow:hover {
    animation-duration: 2.5s, 2s;
    background: linear-gradient(180deg,
    #FE96B0, var(--secondary-color), var(--primary-color), #79F6E9);
    box-shadow: 0 10px 20px rgba(38, 89, 255, 0.3);
}

.card-glow:nth-child(1) { animation: cardUp 0.8s ease forwards 0.2s; }
.card-glow:nth-child(2) { animation: cardUp 0.8s ease forwards 0.4s; }
.card-glow:nth-child(3) { animation: cardUp 0.8s ease forwards 0.6s; }
.card-glow:nth-child(4) { animation: cardUp 0.8s ease forwards 0.8s; }
.card-glow:nth-child(5) { animation: cardUp 0.8s ease forwards 1.0s; }
.card-glow:nth-child(6) { animation: cardUp 0.8s ease forwards 1.2s; }

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

@keyframes spinBorder {
    to { --a: 360deg; }
}
@keyframes pulseGlow {
    0%, 100% { box-shadow: 0 4px 20px rgba(249, 115, 22, 0.04); }
    50% { box-shadow: 0 8px 36px rgba(249, 115, 22, 0.10); }
}

/* ============================================================
   8. 卡片内部 — 默认白色，悬停柔和毛玻璃
   ============================================================ */
.card {
    flex: 1;
    border-radius: 1.8rem;
    padding: 1.8rem 1.6rem 1.6rem;
    transition: all 0.4s ease;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
    align-items: center;
    background: linear-gradient(180deg, transparent 0%, transparent 80%);
}
.card-shinny::before {
    content: '';
    transform: rotate(15deg);
    position: absolute;
    top: -60px;
    left: 0;
    width: 10px;
    height: 400px;
    background: linear-gradient(90deg, transparent, rgb(255, 255, 255, .7), transparent);
    opacity: 0;
    pointer-events: none;
    z-index: -1;
    transition: .3s ease-in-out;
}

.card-glow:hover .card {
    background: linear-gradient(180deg, #2659FF 0%, rgba(255, 255, 255, 1) 80%);
}

.card-glow:hover .card::before {
    opacity: 1;
}
.card-glow:hover .card-shinny::before {
    width: 180px;
    left: 80px;
    opacity: 1;
    z-index: 0;
}
.card-glow:hover .card-shinny {
    transform: translateY(-6px) scale(1.01);
}

/* ===== 图标 — 温和动效 ===== */
.card-icon {
    font-size: 2.2rem;
    margin-bottom: 0.6rem;
    display: inline-block;
    transition: transform 0.4s ease;
}
.card-glow:hover .card-icon {
    transform: scale(1.06) rotate(-2deg);
}

/* ===== 标题 — 保持深色 ===== */
.card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 0.2rem;
    color: #1a1a2e;
    letter-spacing: -0.3px;
    transition: color 0.4s ease;
}
.card-glow:hover .card h3 {
    color: #1a1a2e;
}

/* ===== 英文副标题 ===== */
.card .en {
    font-size: 0.6rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: #8a9bb5;
    padding-top: 0.5rem;
    margin-top: 0.3rem;
    font-weight: 400;
    transition: color 0.4s ease, border-color 0.4s ease;
}
.card-glow:hover .card .en {
    color: #6b7a99;
    border-top-color: rgba(249, 115, 22, 0.12);
}

/* ===== 描述 ===== */
.card .small-note {
    font-size: 0.8rem;
    color: #6b7a99;
    margin-top: 0.4rem;
    letter-spacing: 0.2px;
    transition: color 0.4s ease;
}
.card-glow:hover .card .small-note {
    color: #5a6a8a;
}

/* ===== 装饰线 — 温和延伸 ===== */
.card .glow-line {
    width: 28px;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-color), transparent);
    margin-top: 0.6rem;
    border-radius: 4px;
    transition: width 0.5s ease, background 0.5s ease;
}
.card-glow:hover .card .glow-line {
    width: 56px;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color), transparent);
}

/* ============================================================
   9. 底部
   ============================================================ */
.footer-note {
    text-align: center;
    margin-top: 4.5rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(249, 115, 22, 0.05);
    position: relative;
}

.footer-note .footer-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    font-size: 0.75rem;
    color: #4a5a7a;
    letter-spacing: 0.5px;
    background: rgba(255, 255, 255, 0.6);
    padding: 0.35rem 1.6rem;
    border-radius: 60px;
    backdrop-filter: blur(4px);
    border: 1px solid rgba(249, 115, 22, 0.04);
}
.footer-note .footer-tag i {
    color: #f97316;
    font-size: 0.9rem;
}
.footer-note .footer-tag .dot {
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: #f97316;
    display: inline-block;
    animation: dotPulse 1.8s ease-in-out infinite;
}
@keyframes dotPulse {
    0%, 100% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 1; transform: scale(1.6); }
}

.footer-note .footer-tags {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.4rem 1.2rem;
    margin-top: 0.8rem;
    font-size: 0.6rem;
    color: #8a9bb5;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}
.footer-note .footer-tags span {
    opacity: 0.6;
    transition: opacity 0.3s;
    cursor: default;
}
.footer-note .footer-tags span:hover {
    opacity: 1;
    color: #f97316;
}
.footer-decoration {
    transform: translate(0, 0);
    animation: footerDecoration 10s linear infinite;
}
@keyframes footerDecoration {
    0%, 100% { transform: translate(0, 0); }
    50% { transform: translate(-5%, 10px); }
}
.head-image{
    opacity: 0;
    transform: translateY(-20px);
    animation: logoFade 1s ease forwards;
}
@keyframes logoFade {
    to { opacity: 1; transform: translateY(0); }
}

.titglow {
    opacity: 1;
    transform: scale(1);
    animation: titglowFade 6s ease-in-out infinite; 
}

@keyframes titglowFade {
    0% {
        opacity: 1;
        transform: scale(1) translateX(0);
    }
    25% {
        opacity: 0.7;
        transform: scale(1) translateX(50px);
    }
    50% {
        opacity: 1;
        transform: scale(1.3) translateX(-20px);
    }
    75% {
        opacity: 0.7;
        transform: scale(1) translateX(-50px);
    }
    100% {
        opacity: 1;
        transform: scale(1) translateX(0);
    }
}

/* ============================================================
   10. 响应式
   ============================================================ */
@media (max-width: 1024px) {
    .card-grid { grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
}
@media (max-width: 768px) {
    .container { padding: 1.5rem 1.2rem 2.5rem; }
    .logo h1 { font-size: 3rem; }
    .version { font-size: 0.95rem; padding: 0.1rem 0.8rem; }
    .event-theme { padding: 0.5rem 1.2rem; }
    .event-theme .main-slogan { font-size: 1.1rem; }
    .event-theme .sub-slogan { font-size: 0.65rem; letter-spacing: 2px; }
    .dual-badge { font-size: 0.7rem; padding: 0.25rem 1rem; gap: 6px; flex-wrap: wrap; justify-content: center; }
    .dual-badge .badge-divider { display: none; }
    .card-grid { grid-template-columns: 1fr 1fr; gap: 1.2rem; }
    .card { padding: 1.2rem 1rem; }
    .card h3 { font-size: 1.05rem; }
    .card-icon { font-size: 1.7rem; }
    .card .en { font-size: 0.5rem; }
    .footer-note .footer-tag { font-size: 0.65rem; padding: 0.25rem 0.9rem; }
}
@media (max-width: 480px) {
    .container { padding: 1rem 0.8rem 2rem; }
    .logo h1 { font-size: 2rem; }
    .version { font-size: 0.75rem; }
    .event-theme .main-slogan { font-size: 0.95rem; }
    .event-theme .sub-slogan { font-size: 0.55rem; letter-spacing: 1px; }
    .card-grid { grid-template-columns: 1fr; gap: 1rem; }
    .card { padding: 1rem 0.8rem; }
    .card h3 { font-size: 0.95rem; }
    .card .en { font-size: 0.45rem; letter-spacing: 1px; }
    .card-icon { font-size: 1.4rem; margin-bottom: 0.2rem; }
    .card .small-note { font-size: 0.55rem; }
    .card .glow-line { width: 18px; }
    .card-glow:hover .card .glow-line { width: 36px; }
    .footer-note .footer-tags { font-size: 0.45rem; gap: 0.2rem 0.6rem; }
    .dual-badge { font-size: 0.6rem; padding: 0.2rem 0.7rem; gap: 4px; }
}