/* index.css - 首页专属样式 */

/* ---- Hero ---- */
.hero {
    position: relative;
    min-height: 580px;
    display: flex;
    align-items: center;
    overflow: hidden;
    color: #fff;
    padding: 60px 0 80px;
}
.hero-bg {
    position: absolute;
    inset: 0;
    background-size: cover;
    background-position: center top;
    filter: brightness(0.45) saturate(1.2);
}
.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(16,152,173,0.7) 0%, rgba(31,78,61,0.5) 60%, rgba(0,0,0,0.3) 100%);
}
.hero-content {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    gap: 50px;
}
.hero-text { flex: 1; }
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(229,57,53,0.85);
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    padding: 6px 14px;
    border-radius: 20px;
    margin-bottom: 16px;
    letter-spacing: .5px;
}
.hero-title {
    font-size: 64px;
    font-weight: 900;
    letter-spacing: 4px;
    text-shadow: 0 4px 20px rgba(0,0,0,0.5);
    line-height: 1.1;
    background: linear-gradient(135deg, #fff 30%, #ffd700 70%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}
.hero-slogan {
    font-size: 22px;
    margin: 12px 0 16px;
    font-weight: 600;
    text-shadow: 0 2px 8px rgba(0,0,0,0.5);
    letter-spacing: 2px;
}
.hero-desc {
    font-size: 15px;
    opacity: 0.88;
    max-width: 500px;
    line-height: 1.8;
    margin-bottom: 28px;
}
.hero-btns { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 30px; }
.hero-stats { display: flex; gap: 30px; }
.stat-item { text-align: center; }
.stat-num { display: block; font-size: 28px; font-weight: 900; color: #ffd700; text-shadow: 0 2px 8px rgba(0,0,0,0.5); }
.stat-label { font-size: 12px; opacity: 0.75; letter-spacing: 1px; }
.hero-img { flex: 0 0 380px; position: relative; }
.hero-img img {
    width: 100%;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.6);
    transform: rotate(-2deg);
    transition: transform .4s ease;
    border: 3px solid rgba(255,255,255,0.15);
}
.hero-img:hover img { transform: rotate(0deg) scale(1.03); }
.hero-wave {
    position: absolute;
    bottom: -2px; left: 0; right: 0;
    height: 60px;
    background: var(--color-bg);
    clip-path: ellipse(55% 100% at 50% 100%);
}

/* ---- Features ---- */
.features { background: var(--color-bg); }
.features-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 20px;
}
.feature-card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 28px 22px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border);
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}
.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary);
}
.feature-card::before {
    content: "";
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    transform: scaleX(0);
    transition: transform .3s ease;
}
.feature-card:hover::before { transform: scaleX(1); }
.feature-icon {
    width: 56px; height: 56px;
    border-radius: 14px;
    background: rgba(16,152,173,.1);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 16px;
}
.feature-card h3 { font-size: 16px; color: var(--color-text); margin-bottom: 10px; }
.feature-card p { font-size: 13px; color: var(--color-text-light); line-height: 1.7; }
.feature-tag {
    display: inline-block;
    margin-top: 12px;
    font-size: 11px;
    background: rgba(16,152,173,.1);
    color: var(--color-primary);
    padding: 3px 10px;
    border-radius: 10px;
    font-weight: 600;
}

/* ---- Screenshots Carousel ---- */
.screenshots { background: #fff; }
.carousel-wrap { max-width: 900px; margin: 0 auto; }
.carousel {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}
.carousel-track { position: relative; }
.carousel-slide { display: none; }
.carousel-slide.active { display: block; }
.carousel-slide img { width: 100%; border-radius: var(--radius-lg); }
.slide-caption {
    position: absolute;
    bottom: 0; left: 0; right: 0;
    background: linear-gradient(transparent, rgba(0,0,0,0.75));
    color: #fff;
    padding: 30px 20px 18px;
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 1px;
}
.carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255,255,255,0.2);
    backdrop-filter: blur(4px);
    color: #fff;
    width: 44px; height: 44px;
    border-radius: 50%;
    font-size: 18px;
    transition: var(--transition);
    cursor: pointer;
    border: 1px solid rgba(255,255,255,0.3);
}
.carousel-btn:hover { background: var(--color-primary); }
.carousel-prev { left: 12px; }
.carousel-next { right: 12px; }
.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 16px;
}
.dot {
    width: 10px; height: 10px;
    border-radius: 50%;
    background: var(--color-border);
    cursor: pointer;
    transition: var(--transition);
}
.dot.active { background: var(--color-primary); width: 28px; border-radius: 5px; }

/* ---- Gameplay ---- */
.gameplay { background: var(--color-bg); }
.gameplay-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.gameplay-item {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    background: #fff;
    padding: 24px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}
.gameplay-item:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-sm);
    transform: translateX(4px);
}
.gameplay-num {
    font-size: 36px;
    font-weight: 900;
    color: var(--color-primary);
    opacity: 0.25;
    line-height: 1;
    flex-shrink: 0;
    width: 60px;
}
.gameplay-content h3 {
    font-size: 16px;
    color: var(--color-text);
    margin-bottom: 8px;
}
.gameplay-content h3 i { color: var(--color-primary); margin-right: 6px; }
.gameplay-content p { font-size: 13px; color: var(--color-text-light); line-height: 1.7; }

/* ---- Activities ---- */
.activities { background: #fff; }
.activities-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}
.activity-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}
.activity-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.activity-img { position: relative; height: 200px; overflow: hidden; }
.activity-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.activity-card:hover .activity-img img { transform: scale(1.06); }
.activity-hot {
    position: absolute;
    top: 10px; right: 10px;
    background: var(--color-orange);
    color: #fff;
    font-size: 12px;
    padding: 4px 10px;
    border-radius: 10px;
    font-weight: 600;
}
.activity-info { padding: 20px; }
.activity-tag {
    display: inline-block;
    font-size: 11px;
    background: rgba(16,152,173,.1);
    color: var(--color-primary);
    padding: 3px 10px;
    border-radius: 10px;
    font-weight: 600;
    margin-bottom: 10px;
}
.activity-info h3 { font-size: 16px; color: var(--color-text); margin-bottom: 8px; }
.activity-info p { font-size: 13px; color: var(--color-text-light); line-height: 1.7; margin-bottom: 14px; }
.activity-footer { display: flex; align-items: center; justify-content: space-between; }
.activity-time { font-size: 12px; color: var(--color-text-light); }
.activity-time i { margin-right: 4px; }

/* ---- CTA ---- */
.cta-section { background: var(--color-bg); }
.cta-box {
    background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-secondary-dark) 100%);
    border-radius: var(--radius-lg);
    padding: 50px 60px;
    display: flex;
    align-items: center;
    gap: 40px;
    color: #fff;
    overflow: hidden;
    position: relative;
}
.cta-box::before {
    content: "";
    position: absolute;
    top: -60px; right: -60px;
    width: 240px; height: 240px;
    background: rgba(16,152,173,.25);
    border-radius: 50%;
}
.cta-box::after {
    content: "";
    position: absolute;
    bottom: -80px; right: 60px;
    width: 160px; height: 160px;
    background: rgba(229,57,53,.15);
    border-radius: 50%;
}
.cta-left { flex: 1; position: relative; z-index: 1; }
.cta-left h2 { font-size: 34px; margin-bottom: 12px; letter-spacing: 2px; }
.cta-left p { font-size: 15px; opacity: 0.8; margin-bottom: 28px; }
.cta-btns { display: flex; gap: 14px; }
.cta-right { flex: 0 0 300px; position: relative; z-index: 1; }
.cta-right img {
    width: 100%;
    border-radius: 14px;
    border: 2px solid rgba(255,255,255,0.2);
    box-shadow: 0 16px 40px rgba(0,0,0,0.4);
}

/* ---- 滚动动画 ---- */
.fade-up { opacity: 0; transform: translateY(24px); transition: all .6s ease; }
.fade-up.in-view { opacity: 1; transform: translateY(0); }

/* ---- 响应式 ---- */
@media (max-width: 1100px) {
    .features-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 900px) {
    .hero-title { font-size: 44px; }
    .hero-content { flex-direction: column; gap: 24px; text-align: center; }
    .hero-btns { justify-content: center; }
    .hero-stats { justify-content: center; }
    .hero-img { flex: unset; width: 80%; }
    .features-grid { grid-template-columns: repeat(2, 1fr); }
    .activities-grid { grid-template-columns: 1fr 1fr; }
    .gameplay-grid { grid-template-columns: 1fr; }
    .cta-box { flex-direction: column; text-align: center; padding: 40px 24px; }
    .cta-btns { justify-content: center; }
}
@media (max-width: 640px) {
    .hero-title { font-size: 36px; }
    .features-grid { grid-template-columns: 1fr; }
    .activities-grid { grid-template-columns: 1fr; }
    .hero-img { width: 100%; }
}