/* ========== Hero 全屏 ========== */
.hero {
    position: relative;
    height: 100vh;
    min-height: 600px;
    max-height: 900px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    overflow: hidden;
}

.hero-bg,
.hero-bg img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    pointer-events: none;
}

.hero-mask {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(10, 14, 8, 0.45) 0%, rgba(10, 14, 8, 0.25) 45%, rgba(10, 14, 8, 0.55) 100%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    padding: 0 24px;
    animation: heroFade 1s ease both;
}

@keyframes heroFade {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}

.hero-title {
    font-family: 'Ma Shan Zheng', 'Noto Sans SC', serif;
    font-size: clamp(48px, 8vw, 104px);
    color: #fff;
    line-height: 1.2;
    letter-spacing: 6px;
    text-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
    margin-bottom: 20px;
    font-weight: 400;
}

.hero-sub {
    font-size: clamp(14px, 1.6vw, 19px);
    color: rgba(255, 255, 255, 0.9);
    letter-spacing: 3px;
    margin-bottom: 40px;
}

.hero-scroll {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 10px;
    letter-spacing: 3px;
}

.hero-scroll-mouse {
    width: 20px;
    height: 32px;
    border: 1.5px solid rgba(255, 255, 255, 0.7);
    border-radius: 12px;
    position: relative;
}

.hero-scroll-mouse::after {
    content: '';
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    width: 3px;
    height: 6px;
    border-radius: 2px;
    background: #fff;
    animation: wheel 1.6s ease infinite;
}

@keyframes wheel {
    0% { opacity: 1; top: 6px; }
    100% { opacity: 0; top: 16px; }
}

/* ========== 关于哲击 ========== */
.about {
    background: var(--bg);
    padding: 110px 0;
}

.about-inner {
    display: grid;
    grid-template-columns: 0.85fr 1.15fr;
    gap: 80px;
    align-items: center;
}

.about-desc {
    margin: 24px 0 36px;
    font-size: 15px;
    line-height: 2.1;
    color: var(--text-secondary);
}

/* 拼贴画 */
.about-collage {
    position: relative;
    height: 460px;
}

.col-photo {
    position: absolute;
    overflow: hidden;
    border-radius: 4px;
    box-shadow: 0 20px 50px rgba(20, 24, 15, 0.15);
}

.col-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s;
}

.col-photo:hover img {
    transform: scale(1.06);
}

.col-photo-1 {
    width: 52%;
    height: 78%;
    left: 0;
    top: 8%;
    transform: rotate(-3deg);
    z-index: 1;
}

.col-photo-2 {
    width: 44%;
    height: 46%;
    right: 0;
    top: 0;
    transform: rotate(3deg);
    z-index: 2;
}

.col-photo-3 {
    width: 48%;
    height: 42%;
    right: 2%;
    bottom: 0;
    transform: rotate(4deg);
    z-index: 2;
}

.col-handwrite {
    position: absolute;
    left: 8%;
    bottom: 10%;
    font-family: 'Caveat', cursive;
    font-size: clamp(32px, 4vw, 52px);
    font-weight: 700;
    color: rgba(224, 235, 180, 0.85);
    line-height: 1.05;
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.35);
    pointer-events: none;
}

/* ========== 空间与业态 ========== */
.space {
    background: var(--bg-soft);
    padding: 110px 0;
}

.space-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
}

.space-card {
    position: relative;
    display: block;
    border-radius: 6px;
    overflow: hidden;
    aspect-ratio: 16 / 8;
}

.space-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.7s;
}

.space-card:hover img {
    transform: scale(1.06);
}

.space-card-mask {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, rgba(12, 16, 9, 0.78) 0%, rgba(12, 16, 9, 0.25) 60%, rgba(12, 16, 9, 0.05) 100%);
    pointer-events: none;
}

.space-card-text {
    position: absolute;
    left: 32px;
    bottom: 28px;
    color: #fff;
}

.space-num {
    font-size: 14px;
    letter-spacing: 3px;
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 8px;
}

.space-card-text h3 {
    font-size: 24px;
    font-weight: 700;
    letter-spacing: 2px;
    margin-bottom: 6px;
}

.space-card-text p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 14px;
}

.space-arrow {
    font-size: 18px;
    color: #fff;
    display: inline-block;
    transition: transform 0.3s, color 0.3s;
}

.space-card:hover .space-arrow {
    transform: translateX(6px);
    color: var(--lime);
}

/* ========== 活动预告 ========== */
.events {
    background: var(--bg);
    padding: 110px 0;
}

.events-grid {
    display: grid;
    grid-template-columns: 1.35fr 1fr;
    gap: 24px;
}

.event-featured {
    position: relative;
    border-radius: 6px;
    overflow: hidden;
    min-height: 460px;
    display: block;
}

.event-featured img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.7s;
}

.event-featured:hover img {
    transform: scale(1.05);
}

.event-featured-mask {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(12, 16, 9, 0.15) 0%, rgba(12, 16, 9, 0.75) 100%);
    pointer-events: none;
}

.event-featured-text {
    position: absolute;
    left: 36px;
    bottom: 36px;
    color: #fff;
}

.event-date-lg {
    font-size: 30px;
    font-weight: 800;
    letter-spacing: 3px;
    margin-bottom: 10px;
}

.event-date-lg span {
    font-size: 18px;
    font-weight: 400;
    color: rgba(255, 255, 255, 0.6);
}

.event-featured-text h3 {
    font-size: 26px;
    font-weight: 700;
    letter-spacing: 2px;
    margin-bottom: 8px;
}

.event-featured-text p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: 22px;
}

.event-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.event-item {
    flex: 1;
    display: flex;
    align-items: center;
    background: var(--bg-card);
    border-radius: 6px;
    overflow: hidden;
    min-height: 140px;
    transition: transform 0.3s;
}

.event-item:hover {
    transform: translateX(6px);
}

.event-item-img {
    width: 42%;
    height: 100%;
    min-height: 140px;
    flex-shrink: 0;
    overflow: hidden;
}

.event-item-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.event-item-info {
    flex: 1;
    padding: 0 20px;
    color: #fff;
}

.event-item-info h4 {
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 1px;
}

.event-item-date {
    padding-right: 22px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.55);
    letter-spacing: 1px;
    white-space: nowrap;
}

/* ========== 人与人 社群 ========== */
.community {
    background: var(--bg-soft);
    padding: 110px 0;
}

.community-inner {
    display: grid;
    grid-template-columns: 0.6fr 1.4fr;
    gap: 60px;
    align-items: center;
}

.community-poem {
    margin: 24px 0 36px;
    font-size: 15px;
    line-height: 2.2;
    color: var(--text-secondary);
}

.community-collage {
    position: relative;
    height: 420px;
}

.cm-photo {
    position: absolute;
    overflow: hidden;
    box-shadow: 0 18px 44px rgba(20, 24, 15, 0.14);
    transition: transform 0.4s;
}

.cm-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s;
}

.cm-photo:hover img {
    transform: scale(1.06);
}

/* 斜切拼贴：左边缘右倾、右边缘左倾 */
.cm-photo-1 {
    width: 40%;
    height: 100%;
    left: 0;
    top: 0;
    clip-path: polygon(8% 0, 100% 0, 92% 100%, 0 100%);
    z-index: 2;
}

.cm-photo-2 {
    width: 34%;
    height: 84%;
    left: 35%;
    top: 8%;
    clip-path: polygon(8% 0, 100% 0, 92% 100%, 0 100%);
    z-index: 3;
}

.cm-photo-3 {
    width: 34%;
    height: 70%;
    right: 0;
    top: 15%;
    clip-path: polygon(8% 0, 100% 0, 92% 100%, 0 100%);
    z-index: 2;
}

.cm-tag {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    bottom: 22px;
    font-family: 'Ma Shan Zheng', 'Noto Sans SC', serif;
    font-size: 28px;
    color: #fff;
    letter-spacing: 4px;
    text-shadow: 0 2px 12px rgba(0, 0, 0, 0.6);
    pointer-events: none;
    white-space: nowrap;
}

/* ========== 活动与社群 增强模块 ========== */
.ev-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 0 0 36px;
    margin-bottom: 28px;
    border-bottom: 1px solid var(--border);
}

.ev-filter-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 22px;
    border: 1px solid var(--border);
    border-radius: 999px;
    font-size: 13px;
    color: var(--text-secondary);
    background: #fff;
    cursor: pointer;
    transition: all 0.3s;
    font-family: inherit;
    letter-spacing: 1px;
}

.ev-filter-btn .ev-filter-count {
    font-size: 11px;
    color: var(--text-muted);
    background: var(--bg-soft);
    padding: 1px 7px;
    border-radius: 999px;
    transition: all 0.3s;
}

.ev-filter-btn:hover {
    border-color: var(--lime-deep);
    color: var(--ink);
}

.ev-filter-btn.active {
    background: var(--ink);
    border-color: var(--ink);
    color: #fff;
}

.ev-filter-btn.active .ev-filter-count {
    background: var(--lime);
    color: var(--ink);
}

/* 子标题 */
.ev-sub-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    margin: 56px 0 24px;
}

.ev-sub-head:first-of-type {
    margin-top: 0;
}

.ev-sub-title {
    font-size: 22px;
    font-weight: 800;
    color: var(--text);
    letter-spacing: 1px;
}

.ev-sub-title::before {
    content: '';
    display: inline-block;
    width: 4px;
    height: 18px;
    background: var(--lime-deep);
    margin-right: 12px;
    vertical-align: -2px;
    border-radius: 2px;
}

.ev-sub-note {
    font-size: 12px;
    color: var(--text-muted);
    letter-spacing: 1px;
}

/* 近期活动 卡片网格 */
.ev-recent-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
}

.ev-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 10px;
    overflow: hidden;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
    display: flex;
    flex-direction: column;
}

.ev-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 18px 40px rgba(20, 24, 15, 0.12);
    border-color: transparent;
}

.ev-card-img {
    aspect-ratio: 4 / 3;
    overflow: hidden;
}

.ev-card-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s;
}

.ev-card:hover .ev-card-img img {
    transform: scale(1.06);
}

.ev-card-body {
    padding: 18px 18px 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    flex: 1;
}

.ev-type {
    align-self: flex-start;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 1px;
    padding: 3px 10px;
    border-radius: 999px;
    background: var(--bg-soft);
    color: var(--text-secondary);
}

.ev-type-sport { background: rgba(200, 245, 66, 0.22); color: #6f8a1a; }
.ev-type-social { background: rgba(90, 150, 255, 0.14); color: #3a6bd6; }
.ev-type-family { background: rgba(255, 170, 90, 0.18); color: #b06a1e; }
.ev-type-corp { background: rgba(120, 90, 200, 0.16); color: #6a4bb8; }

.ev-card-body h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
    letter-spacing: 0.5px;
    line-height: 1.4;
}

.ev-meta {
    display: flex;
    flex-direction: column;
    gap: 6px;
    font-size: 12px;
    color: var(--text-muted);
    margin-top: auto;
}

.ev-meta-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.ev-meta-item svg {
    width: 13px;
    height: 13px;
    flex-shrink: 0;
    color: var(--lime-deep);
}

.ev-card-cta {
    margin-top: 8px;
    font-size: 12px;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: 1px;
    transition: color 0.25s, transform 0.25s;
}

.ev-card:hover .ev-card-cta {
    color: var(--lime-deep);
    transform: translateX(4px);
}

/* 社团风采 */
.ev-club-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
}

.ev-club {
    background: var(--bg-soft);
    border-radius: 10px;
    overflow: hidden;
    transition: transform 0.3s, box-shadow 0.3s;
}

.ev-club:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 36px rgba(20, 24, 15, 0.1);
}

.ev-club-img {
    aspect-ratio: 4 / 3;
    overflow: hidden;
}

.ev-club-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s;
}

.ev-club:hover .ev-club-img img {
    transform: scale(1.06);
}

.ev-club-info {
    padding: 18px 18px 22px;
}

.ev-club-info h4 {
    font-size: 17px;
    font-weight: 800;
    color: var(--text);
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.ev-club-info p {
    font-size: 13px;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: 14px;
}

.ev-club-time {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    font-weight: 600;
    color: var(--lime-deep);
    background: rgba(200, 245, 66, 0.16);
    padding: 6px 12px;
    border-radius: 999px;
    letter-spacing: 0.5px;
}

.ev-club-time svg {
    width: 13px;
    height: 13px;
}

/* 活动回顾 */
.ev-review-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 22px;
}

.ev-review {
    position: relative;
    aspect-ratio: 4 / 3;
    border-radius: 10px;
    overflow: hidden;
    cursor: pointer;
}

.ev-review img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s;
}

.ev-review:hover img {
    transform: scale(1.06);
}

.ev-review-mask {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(12, 16, 9, 0.1) 0%, rgba(12, 16, 9, 0.75) 100%);
    pointer-events: none;
}

.ev-review-text {
    position: absolute;
    left: 18px;
    bottom: 18px;
    color: #fff;
    z-index: 2;
}

.ev-review-date {
    display: block;
    font-size: 11px;
    letter-spacing: 2px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 4px;
}

.ev-review-text h4 {
    font-size: 17px;
    font-weight: 700;
    letter-spacing: 1px;
}

.ev-review-play {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 2;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.92);
    color: var(--ink);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    padding-left: 3px;
    transition: transform 0.3s, background 0.3s;
}

.ev-review:hover .ev-review-play {
    transform: translate(-50%, -50%) scale(1.1);
    background: var(--lime);
}

/* ========== 响应式 ========== */
@media (max-width: 1024px) {
    .about,
    .space,
    .events,
    .community {
        padding: 80px 0;
    }

    .about-inner,
    .community-inner {
        grid-template-columns: 1fr;
        gap: 56px;
    }

    .about-collage,
    .community-collage {
        height: 400px;
    }

    .space-grid {
        grid-template-columns: 1fr;
    }

    .events-grid {
        grid-template-columns: 1fr;
    }

    .event-featured {
        min-height: 380px;
    }

    .ev-recent-grid,
    .ev-club-grid,
    .ev-review-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .about,
    .space,
    .events,
    .community {
        padding: 60px 0;
    }

    .hero-title {
        letter-spacing: 3px;
    }

    .about-collage,
    .community-collage {
        height: 300px;
    }

    .col-handwrite {
        font-size: 28px;
    }

    .space-card {
        aspect-ratio: 16 / 10;
    }

    .space-card-text {
        left: 22px;
        bottom: 20px;
    }

    .space-card-text h3 {
        font-size: 20px;
    }

    .event-item {
        min-height: 110px;
    }

    .event-item-img {
        min-height: 110px;
    }

    .event-featured {
        min-height: 320px;
    }

    .event-featured-text {
        left: 24px;
        bottom: 24px;
    }

    .cm-tag {
        font-size: 20px;
    }

    .community-collage {
        height: 340px;
    }

    .ev-recent-grid,
    .ev-club-grid {
        grid-template-columns: 1fr;
    }

    .ev-review-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 14px;
    }

    .ev-sub-head {
        margin: 40px 0 18px;
    }

    .ev-sub-title {
        font-size: 19px;
    }
}

@media (max-width: 560px) {
    .community-collage {
        height: 280px;
    }

    .cm-tag {
        font-size: 16px;
        bottom: 12px;
    }

    .ev-review-grid {
        grid-template-columns: 1fr;
    }
}