/**
 * 最新动态「大画幅」样式
 * 让动态轮播更加大气舒展，卡片更大更有冲击力
 */

/* ==================== 最新动态区域 ==================== */
.latest-activities {
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.95), rgba(250, 248, 245, 0.9));
    border-radius: 24px;
    padding: 2.5rem;
    margin-bottom: 3rem;
    position: relative;
    overflow: hidden;
    box-shadow:
        0 10px 40px rgba(0, 0, 0, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

/* 装饰顶边 */
.latest-activities::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg,
        var(--secondary) 0%,
        var(--accent) 50%,
        var(--secondary) 100%
    );
    background-size: 200% 100%;
    animation: gradient-flow 3s linear infinite;
}

@keyframes gradient-flow {
    0% { background-position: 0% 50%; }
    100% { background-position: 200% 50%; }
}

/* 角落装饰 */
.latest-activities::after {
    content: '✦';
    position: absolute;
    top: 20px;
    right: 25px;
    font-size: 1.5rem;
    color: var(--secondary);
    opacity: 0.15;
}

/* ==================== 轮播容器 ==================== */
.activity-carousel {
    position: relative;
}

.carousel-viewport {
    display: flex;
    overflow-x: auto;
    scroll-behavior: smooth;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    gap: 1.25rem;
    padding: 1rem 0.5rem 1.5rem 0.5rem;
}

.carousel-viewport::-webkit-scrollbar {
    height: 4px;
}

.carousel-viewport::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.05);
    border-radius: 2px;
}

.carousel-viewport::-webkit-scrollbar-thumb {
    background: linear-gradient(90deg, var(--secondary), var(--accent));
    border-radius: 2px;
}

/* ==================== 动态卡片 - 大画幅 ==================== */
.carousel-item {
    flex: 0 0 calc(50% - 0.625rem);
    min-width: 320px;
    max-width: 550px;
    scroll-snap-align: start;
    box-sizing: border-box;
    animation: fade-in-up 0.6s ease-out backwards;
}

.carousel-item:nth-child(1) { animation-delay: 0.1s; }
.carousel-item:nth-child(2) { animation-delay: 0.2s; }
.carousel-item:nth-child(3) { animation-delay: 0.3s; }
.carousel-item:nth-child(4) { animation-delay: 0.4s; }
.carousel-item:nth-child(5) { animation-delay: 0.5s; }
.carousel-item:nth-child(6) { animation-delay: 0.6s; }

.carousel-item {
    position: relative;
    perspective: 1000px;
}

/* 卡片主体 */
.carousel-item-inner {
    background: linear-gradient(145deg, #fff, #faf8f5);
    border-radius: 20px;
    padding: 1.75rem;
    min-height: 180px;
    box-shadow:
        0 8px 30px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
    transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

/* 顶部装饰条 */
.carousel-item-inner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--secondary), var(--accent));
    opacity: 0.8;
}

.carousel-item:hover .carousel-item-inner {
    transform: translateY(-5px);
    box-shadow:
        0 15px 45px rgba(0, 0, 0, 0.15),
        inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

/* 类型标签 */
.type-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 1rem;
    align-self: flex-start;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.type-tag[data-type="profile_update"] {
    background: linear-gradient(135deg, #3498db, #2980b9);
    color: #fff;
}

.type-tag[data-type="message"] {
    background: linear-gradient(135deg, #2ecc71, #27ae60);
    color: #fff;
}

.type-tag[data-type="photo"] {
    background: linear-gradient(135deg, #e67e22, #d35400);
    color: #fff;
}

.type-tag[data-type="video"] {
    background: linear-gradient(135deg, #9b59b6, #8e44ad);
    color: #fff;
}

.type-tag[data-type="voice_shout"] {
    background: linear-gradient(135deg, #e74c3c, #c0392b);
    color: #fff;
}

/* 人物名称 */
.carousel-actor {
    font-family: 'ZCOOL XiaoWei', serif;
    font-size: 1.35rem;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

/* 内容 */
.carousel-content {
    font-size: 1rem;
    color: var(--text);
    line-height: 1.7;
    flex: 1;
    overflow: hidden;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
}

/* 时间 */
.carousel-time {
    font-size: 0.8rem;
    color: var(--text-light);
    margin-top: auto;
    padding-top: 0.75rem;
    opacity: 0.7;
}

/* ==================== 导航 ==================== */
.carousel-nav {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    margin-top: 1rem;
}

.carousel-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--secondary), var(--accent));
    border: none;
    color: #fff;
    font-size: 1rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 15px rgba(231, 76, 60, 0.3);
    transition: all 0.3s ease;
}

.carousel-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(231, 76, 60, 0.4);
}

.carousel-btn:active {
    transform: scale(0.95);
}

.carousel-dots {
    display: flex;
    gap: 8px;
}

.carousel-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.15);
    cursor: pointer;
    transition: all 0.3s ease;
}

.carousel-dot.active {
    background: linear-gradient(135deg, var(--secondary), var(--accent));
    width: 24px;
    border-radius: 4px;
}

/* ==================== 入场动画 ==================== */
@keyframes fade-in-up {
    from {
        opacity: 0;
        transform: translateY(30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* ==================== 夜间模式 ==================== */
body.night-mode .latest-activities {
    background: linear-gradient(145deg, rgba(26, 26, 46, 0.95), rgba(22, 33, 62, 0.9)) !important;
}

body.night-mode .carousel-item-inner {
    background: linear-gradient(145deg, #1a1a2e, #16213e) !important;
}

body.night-mode .carousel-actor {
    color: var(--accent) !important;
}

body.night-mode .carousel-content {
    color: var(--text) !important;
}

body.night-mode .carousel-time {
    color: var(--text-light) !important;
}

body.night-mode .carousel-viewport::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
}

body.night-mode .carousel-dot {
    background: rgba(255, 255, 255, 0.2);
}

body.night-mode .carousel-dot.active {
    background: linear-gradient(135deg, var(--secondary), var(--accent));
}

/* ==================== 响应式 ==================== */
@media (max-width: 1024px) {
    .carousel-item {
        flex: 0 0 calc(60% - 0.625rem);
        min-width: 280px;
    }
}

@media (max-width: 768px) {
    .latest-activities {
        padding: 1.75rem;
        border-radius: 20px;
    }

    .carousel-item {
        flex: 0 0 calc(85% - 0.625rem);
        min-width: 260px;
    }

    .carousel-item-inner {
        padding: 1.25rem;
        min-height: 160px;
    }

    .carousel-actor {
        font-size: 1.15rem;
    }

    .carousel-content {
        font-size: 0.9rem;
        -webkit-line-clamp: 2;
    }

    .type-tag {
        font-size: 0.75rem;
        padding: 5px 12px;
    }

    .carousel-btn {
        width: 36px;
        height: 36px;
    }
}

@media (max-width: 480px) {
    .latest-activities {
        padding: 1.25rem;
        border-radius: 16px;
        margin-bottom: 2rem;
    }

    .carousel-viewport {
        gap: 1rem;
        padding: 0.75rem 0.25rem 1.25rem 0.25rem;
    }

    .carousel-item {
        flex: 0 0 90%;
        min-width: 240px;
    }

    .carousel-item-inner {
        padding: 1rem;
        min-height: 140px;
    }

    .carousel-actor {
        font-size: 1.05rem;
    }

    .carousel-content {
        font-size: 0.85rem;
    }

    .section-title {
        font-size: 1.4rem;
    }
}