/* ============================================================
   案例展示页 - 砖砌网格 + 行业筛选
   风格：布艺配饰风 · 自由聚散错落
   ============================================================ */

/* ---------- Banner 定制 ---------- */
.cases-banner {
    background: linear-gradient(135deg, var(--cream-2) 0%, var(--lotus-soft) 100%);
}
.cases-banner h1 em {
    font-style: normal; color: var(--lotus-deep); position: relative;
}
.cases-banner h1 em::after {
    content: ""; position: absolute; left: 0; right: 0; bottom: 2px; height: 10px;
    background: var(--sage-soft); z-index: -1; border-radius: 6px;
}
.cases-banner .pb-visual { height: 420px; }
.cases-banner .pb-visual img { transform: rotate(-1.5deg); }
.banner-meta {
    display: flex; gap: 36px; margin-top: 32px; flex-wrap: wrap;
}
.banner-meta span {
    font-size: .9rem; color: var(--ink-soft); line-height: 1.4;
}
.banner-meta strong {
    font-family: var(--f-serif); font-size: 1.7rem; color: var(--lotus-deep);
    font-weight: 600; display: block; line-height: 1.1; margin-bottom: 2px;
}

/* ---------- 行业筛选 ---------- */
.filter-section {
    padding: 40px 0 8px;
}
.filter-bar {
    display: flex; align-items: center; gap: 22px; flex-wrap: wrap;
    padding: 18px 26px; background: var(--white); border-radius: var(--radius);
    border: 1px solid var(--line); box-shadow: var(--shadow-sm);
    /* 缝线点缀 */
    position: relative;
}
.filter-bar::before {
    content: ""; position: absolute; top: 8px; bottom: 8px; left: 0; width: 3px;
    background: repeating-linear-gradient(180deg, var(--lotus) 0 6px, transparent 6px 12px);
    border-radius: 2px;
}
.filter-label {
    font-size: .78rem; letter-spacing: 3px; color: var(--ink-mute);
    text-transform: uppercase; padding-left: 8px; font-weight: 500;
}
.filter-tags {
    display: flex; gap: 10px; flex-wrap: wrap; flex: 1;
}
.ftag {
    display: inline-block; padding: 8px 22px; border-radius: 30px;
    font-size: .9rem; color: var(--ink-soft); background: var(--cream-2);
    border: 1.5px solid transparent; transition: all .3s;
    position: relative; cursor: pointer;
}
.ftag:hover {
    background: var(--lotus-soft); color: var(--lotus-deep);
    border-color: var(--lotus); transform: translateY(-2px);
}
.ftag.active {
    background: var(--lotus-deep); color: var(--white);
    border-color: var(--lotus-deep); box-shadow: var(--shadow-sm);
}
.filter-hint {
    font-size: .82rem; color: var(--ink-mute); letter-spacing: 1px;
    padding-left: 12px; border-left: 1px dashed var(--line);
}

/* ---------- 砖砌案例网格（CSS columns 实现真 masonry） ---------- */
.cases-section {
    padding-top: 40px;
}
.masonry {
    column-count: 3; column-gap: 28px;
}
.case-tile {
    break-inside: avoid;
    margin-bottom: 32px;
    display: inline-block;
    width: 100%;
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--line);
    box-shadow: var(--shadow-sm);
    transition: transform .4s ease, box-shadow .4s ease;
    position: relative;
}
.case-tile:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow);
}
/* 卡片右上角缝线角标 */
.case-tile::after {
    content: ""; position: absolute; top: 14px; right: 14px;
    width: 22px; height: 22px; z-index: 3; pointer-events: none;
    border-top: 2px dashed rgba(255,255,255,.7);
    border-right: 2px dashed rgba(255,255,255,.7);
    border-radius: 0 8px 0 0;
    opacity: 0; transition: opacity .3s;
}
.case-tile:hover::after { opacity: 1; }

.tile-pic {
    position: relative; overflow: hidden;
}
.tile-pic.tall img { height: 380px; }
.tile-pic.medium img { height: 290px; }
.tile-pic.short img { height: 230px; }
.tile-pic img {
    width: 100%; object-fit: cover;
    transition: transform .6s ease;
}
.case-tile:hover .tile-pic img { transform: scale(1.06); }

.tile-ind {
    position: absolute; top: 16px; left: 16px; z-index: 2;
    background: rgba(255,255,255,.92); color: var(--lotus-deep);
    padding: 5px 14px; border-radius: 20px; font-size: .76rem;
    letter-spacing: 1px; font-weight: 500;
    backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
}

.tile-body {
    padding: 22px 24px 26px;
}
.tile-body h3 {
    font-size: 1.18rem; margin-bottom: 8px;
    transition: color .3s;
}
.case-tile:hover .tile-body h3 { color: var(--lotus-deep); }
.tile-body p {
    font-size: .9rem; margin-bottom: 16px; line-height: 1.7;
}
.tile-go {
    font-size: .84rem; color: var(--lotus-deep); letter-spacing: 1px;
    display: inline-flex; align-items: center; gap: 6px; font-weight: 500;
}
.tg-arrow {
    font-style: normal; transition: transform .3s;
}
.case-tile:hover .tg-arrow { transform: translateX(6px); }

/* ---------- 数据成果条 ---------- */
.cases-stats {
    background: var(--sage-soft);
    padding: 70px 0;
    position: relative;
}
/* 上下缝线（布艺卷边） */
.cases-stats::before, .cases-stats::after {
    content: ""; position: absolute; left: 0; right: 0; height: 2px;
    background: repeating-linear-gradient(90deg, var(--sage-deep) 0 10px, transparent 10px 20px);
}
.cases-stats::before { top: 0; }
.cases-stats::after { bottom: 0; }
.cases-stats .cs-head {
    margin-bottom: 44px;
}
.cases-stats .cs-head .tag-label { margin-bottom: 16px; }
.cases-stats .cs-head .sec-title { color: var(--sage-deep); }
.cs-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px;
}
.cstat {
    text-align: center; padding: 20px 10px;
    background: rgba(255,255,255,.5); border-radius: var(--radius);
    backdrop-filter: blur(4px);
}
.cstat .num {
    font-family: var(--f-serif); font-size: 2.8rem; color: var(--sage-deep);
    font-weight: 600; line-height: 1;
}
.cstat .lbl {
    font-size: .92rem; color: var(--ink-soft); margin-top: 12px;
}

/* ---------- 响应式 ---------- */
@media (max-width: 980px) {
    .masonry { column-count: 2; }
    .cs-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
    .cases-banner .pb-visual { height: 320px; }
}
@media (max-width: 560px) {
    .masonry { column-count: 1; }
    .tile-pic.tall img { height: 280px; }
    .tile-pic.medium img { height: 240px; }
    .tile-pic.short img { height: 200px; }
    .filter-bar { flex-direction: column; align-items: flex-start; gap: 14px; }
    .filter-bar::before { display: none; }
    .filter-label { padding-left: 0; }
    .filter-hint { border-left: none; padding-left: 0; }
    .banner-meta { gap: 22px; }
    .banner-meta strong { font-size: 1.4rem; }
    .cstat .num { font-size: 2.2rem; }
}