/* ==========================================
   cases.css - 案例庫專用樣式（最終整合版）
   目標：
   - 列表：不滿版大卡，清單感（左小圖右內容）
   - single：柔和敘事、看得下去（章節標題更美、間距更舒服）
   ========================================== */

.cases-list,
.cases-single {
  --cs-surface: #ffffff;
  --cs-border: #edf2f7;
  --cs-border-strong: #e2e8f0;
  --cs-text-primary: #0f172a;
  --cs-text-secondary: #1f2937;
  --cs-text-tertiary: #475569;
  --cs-text-muted: #64748b;
  --cs-accent: #0a66c2;
  --cs-accent-light: rgba(10, 102, 194, 0.06);
  --cs-accent-border: rgba(10, 102, 194, 0.18);
  --cs-shadow-sm: 0 6px 14px rgba(0, 0, 0, 0.03);
  --cs-shadow-md: 0 10px 28px rgba(0, 0, 0, 0.05);
  --cs-shadow-hover: 0 22px 36px -10px rgba(0, 0, 0, 0.10);
  --cs-radius-md: 16px;
  --cs-radius-lg: 24px;
}

/* ✅ 與邊界保留距離（安全留白） */
.cases-list .contact-wrap,
.cases-single .contact-wrap {
  padding-left: clamp(14px, 3vw, 28px);
  padding-right: clamp(14px, 3vw, 28px);
  max-width: 1080px;
  margin-left: auto;
  margin-right: auto;
}

/* Breadcrumb */
.cases-single .cs-breadcrumb,
.cases-list .cs-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 1.4rem;
  font-size: 0.92rem;
  color: var(--cs-text-muted);
}
.cases-single .cs-breadcrumb a,
.cases-list .cs-breadcrumb a {
  color: var(--cs-text-tertiary);
  text-decoration: none;
  font-weight: 500;
}
.cases-single .cs-breadcrumb a:hover,
.cases-list .cs-breadcrumb a:hover {
  color: var(--cs-accent);
}

/* ==========================================
   ✅ List（清單感卡片）
========================================== */
/* ============================
   CASES LIST - 底色列版本
   (對應：cs-list / cs-list-item...)
============================ */

/* 你原本有 filter-bar 就沿用（若已存在可略過） */
.cases-list .cs-filter-bar{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin: 1.2rem 0 1.6rem;
  padding-bottom: .8rem;
  border-bottom: 1px solid var(--cs-border, #e2e8f0);
}
.cases-list .cs-filter-item{
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid transparent;
  color: var(--cs-text-tertiary, #475569);
  font-size: .92rem;
  user-select:none;
}
.cases-list .cs-filter-item.active{
  background: rgba(10,102,194,.10);
  border-color: rgba(10,102,194,.18);
  color: #0a66c2;
  font-weight: 800;
}

/* 清單容器 */
.cases-list .cs-list{
  display:flex;
  flex-direction:column;
  gap: 14px;
  margin: 1.2rem 0 2rem;
}

/* 一列（有底色，但不是卡片浮起） */
.cases-list .cs-list-item{
  text-decoration:none;
  color: inherit;

  display:grid;
  grid-template-columns: 160px 1fr 280px;
  gap: 18px;
  align-items: center;

  padding: 16px;
  border-radius: 18px;
  background: var(--cs-soft, #f8fafc);
  border: 1px solid var(--cs-border, #e2e8f0);

  transition: transform .2s ease, border-color .2s ease, background .2s ease;
}

.cases-list .cs-list-item:hover{
  transform: translateY(-2px);
  border-color: rgba(10,102,194,.22);
  background: #f9fbff;
}

/* 左：縮圖（不必裁切可接受；這裡列表縮圖用 cover 比較整齊） */
.cases-list .cs-list-thumb{
  width: 100%;
  border-radius: 14px;
  overflow: hidden;
  background: #eef2f7;
  aspect-ratio: 4/3;
  display:flex;
  align-items:center;
  justify-content:center;
}
.cases-list .cs-list-thumb img{
  width:100%;
  height:100%;
  object-fit: cover;
  display:block;
}
.cases-list .cs-list-thumb-placeholder{
  font-size: 1.8rem;
  color: #94a3b8;
}

/* 中：內容 */
.cases-list .cs-list-tags{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-bottom: 10px;
}
.cases-list .cs-list-tag{
  font-size: .78rem;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(10,102,194,.08);
  border: 1px solid rgba(10,102,194,.16);
  color: #0a66c2;
  font-weight: 800;
}

.cases-list .cs-list-title{
  margin: 0 0 8px;
  font-size: 1.15rem;
  font-weight: 900;
  line-height: 1.35;
  color: var(--cs-text-primary, #0f172a);
}
.cases-list .cs-list-summary{
  margin: 0;
  font-size: .98rem;
  line-height: 1.85;
  color: var(--cs-text-tertiary, #475569);
  max-width: 56ch;
}

/* 右：meta（對齊更像文件） */
.cases-list .cs-list-meta{
  display:flex;
  flex-direction: column;
  gap: 10px;
  align-items: flex-end;
  text-align: right;
  color: var(--cs-text-muted, #64748b);
  font-size: .88rem;
  line-height: 1.6;
}
.cases-list .cs-list-meta-item{
  white-space: nowrap;
}

/* Empty */
.cases-list .cs-empty{
  text-align:center;
  padding: 4rem 2rem;
  border: 1px dashed var(--cs-border, #e2e8f0);
  border-radius: 18px;
  background: var(--cs-soft, #f8fafc);
}
.cases-list .cs-muted{ color: var(--cs-text-muted, #64748b); }

/* RWD：手機改直排 */
@media (max-width: 900px){
  .cases-list .cs-list-item{
    grid-template-columns: 1fr;
    gap: 14px;
  }
  .cases-list .cs-list-meta{
    align-items: flex-start;
    text-align: left;
  }
  .cases-list .cs-list-thumb{
    aspect-ratio: 16/9;
  }
}


/* ==========================================
   ✅ Single
========================================== */
.cases-single p { line-height: 1.95; color: var(--cs-text-secondary); }
.cases-single .cs-header { max-width: 860px; margin-bottom: 2.2rem; }

.cases-single .cs-header h1 {
  font-size: clamp(2.0rem, 6vw, 2.7rem);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.15;
  margin: .3rem 0 .8rem;
  color: var(--cs-text-primary);
}
.cases-single .cs-summary {
  font-size: 1.08rem;
  line-height: 1.85;
  color: var(--cs-text-tertiary);
  margin: 0 0 1rem;
}

/* （meta / tags） */
.cases-single .cs-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: .8rem 0 0;
}
.cases-single .cs-tag {
  background: var(--cs-accent-light);
  border: 1px solid var(--cs-accent-border);
  color: var(--cs-accent);
  border-radius: 999px;
  padding: 6px 14px;
  font-size: .9rem;
  font-weight: 650;
}

/* ✅ 章節標題：小引導線 + 柔和字級 */
.cases-single .cs-section-title{
  margin: 2.6rem 0 1rem;
  font-size: 1.45rem;
  font-weight: 900;
  letter-spacing: -0.01em;
  line-height: 1.25;
  color: var(--cs-text-primary);
  position: relative;
  padding-left: 14px;
}
.cases-single .cs-section-title::before{
  content: "";
  position: absolute;
  left: 0;
  top: .2em;
  width: 4px;
  height: 1.05em;
  border-radius: 99px;
  background: rgba(10, 102, 194, 0.65);
}

/* ✅ 內容卡：更像文章段落，不像報告 */
.cases-single .cs-card-simple {
  background: var(--cs-surface);
  border: 1px solid var(--cs-border);
  border-radius: var(--cs-radius-md);
  box-shadow: var(--cs-shadow-sm);
  padding: 1.45rem 1.55rem;
  margin: 1.1rem 0;
}

/* bullets 更乾淨 */
.cases-single .cs-bullets { list-style: none; margin: 0; padding: 0; }
.cases-single .cs-bullets li {
  position: relative;
  padding-left: 1.25rem;
  margin-bottom: .65rem;
  color: #334155;
}
.cases-single .cs-bullets li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: rgba(10, 102, 194, 0.85);
}

/* 步驟號 */
.cases-single .cs-step-number {
  width: 36px;
  height: 36px;
  background: var(--cs-accent-light);
  border: 1px solid var(--cs-accent-border);
  border-radius: 999px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  color: var(--cs-accent);
  flex-shrink: 0;
}

/* Screens */
.cases-single .cs-grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin: 1.2rem 0 0;
}
@media (max-width: 640px) {
  .cases-single .cs-grid-2 { grid-template-columns: 1fr; }
}
.cases-single .cs-grid-item {
  background: var(--cs-surface);
  border-radius: var(--cs-radius-md);
  overflow: hidden;
  border: 1px solid var(--cs-border);
  box-shadow: var(--cs-shadow-sm);
  transition: .25s ease;
}
.cases-single .cs-grid-item:hover { transform: translateY(-3px); box-shadow: var(--cs-shadow-hover); }
.cases-single .cs-grid-image {
  aspect-ratio: 4/3;
  background: #f1f5f9;
  overflow: hidden;
}
.cases-single .cs-grid-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .35s ease;
}
.cases-single .cs-grid-item:hover .cs-grid-image img { transform: scale(1.02); }
.cases-single .cs-grid-caption { padding: 1rem 1.15rem 1.15rem; }
.cases-single .cs-grid-caption p { margin: 0; font-size: .92rem; color: var(--cs-text-muted); }

/* Banner（<=2） */
.cases-single .cs-banner {
  background: var(--cs-surface);
  border-radius: var(--cs-radius-lg);
  overflow: hidden;
  border: 1px solid var(--cs-border);
  margin: 1.2rem 0 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  box-shadow: var(--cs-shadow-md);
}
@media (max-width: 768px) {
  .cases-single .cs-banner { grid-template-columns: 1fr; }
}
.cases-single .cs-banner-image {
  aspect-ratio: 1/1;
  background: #f1f5f9;
  overflow: hidden;
}
.cases-single .cs-banner-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform .35s ease;
}
.cases-single .cs-banner:hover .cs-banner-image img { transform: scale(1.02); }
.cases-single .cs-banner-content {
  padding: 1.7rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.cases-single .cs-banner-content h3 {
  margin: 0 0 .5rem;
  font-size: 1.05rem;
  font-weight: 900;
  color: var(--cs-text-primary);
}
.cases-single .cs-banner-content p { margin: 0; color: var(--cs-text-tertiary); }

/* Lightbox */
.cases-single .cs-lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.85);
  z-index: 9999;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(6px);
}
.cases-single .cs-lightbox.active { display: flex; }
.cases-single .cs-lightbox-content {
  max-width: min(92vw, 1080px);
  max-height: 92vh;
  position: relative;
  background: #fff;
  border-radius: 20px;
  padding: 18px;
  box-shadow: 0 30px 60px rgba(0,0,0,0.5);
}
.cases-single .cs-lightbox-image {
  max-width: 100%;
  max-height: 74vh;
  display: block;
  margin: 0 auto;
  border-radius: 12px;
}
.cases-single .cs-lightbox-caption {
  margin-top: 12px;
  text-align: center;
  color: #1e293b;
  font-size: 1rem;
}
.cases-single .cs-lightbox-close {
  position: absolute;
  top: 10px;
  right: 10px;
  background: rgba(0,0,0,0.35);
  border: none;
  color: white;
  font-size: 2rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.cases-single .cs-lightbox-close:hover { background: rgba(0,0,0,0.65); }

/* 手機收斂 */
@media (max-width: 640px) {
  .cases-single .cs-card-simple { padding: 1.25rem 1.25rem; }
}
/* ===============================
   Single 標題升級版（更成熟）
================================ */

.cases-single .cs-header{
  max-width: 780px;
  margin: 0 auto 3rem;
}

.cases-single .cs-header::before{
  content: "CASE STUDY";
  display: block;
  font-size: .75rem;
  letter-spacing: .18em;
  font-weight: 700;
  color: #94a3b8;
  margin-bottom: 12px;
}

.cases-single .cs-header h1{
  font-size: clamp(2.2rem, 6vw, 3rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin: 0 0 1rem;
  color: #0f172a;
}

.cases-single .cs-summary{
  font-size: 1.15rem;
  line-height: 1.9;
  color: #475569;
  max-width: 680px;
}

.cases-single .cs-section-title{
  margin-top: 3.2rem;
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: -0.01em;
  position: relative;
  padding-left: 16px;
}

.cases-single .cs-section-title::before{
  content:"";
  position:absolute;
  left:0;
  top:.25em;
  width:5px;
  height:1.1em;
  border-radius:4px;
  background:#0a66c2;
  opacity:.6;
}
/* ==========================================
   Case Images：不裁剪、不固定比例版本
========================================== */

/* 移除任何強制比例 */
.cases-single .cs-grid-image,
.cases-single .cs-banner-image{
  aspect-ratio: auto !important;
  height: auto !important;
  background: transparent;
}

/* 圖片自然比例 */
.cases-single .cs-grid-image img,
.cases-single .cs-banner-image img{
  width: 100%;
  height: auto;
  object-fit: contain !important;
  display: block;
  border-radius: 12px;
  transition: none;
}

/* 外框改成「文件感」 */
.cases-single .cs-grid-item,
.cases-single .cs-banner{
  background: #f8fafc;
  padding: 18px;
  border-radius: 18px;
  border: 1px solid #e2e8f0;
  box-shadow: 0 10px 28px rgba(0,0,0,0.04);
}

/* 移除 hover 放大（太設計展示感） */
.cases-single .cs-grid-item:hover,
.cases-single .cs-banner:hover{
  transform: none;
  box-shadow: 0 10px 28px rgba(0,0,0,0.04);
}

.cases-single .cs-grid-item:hover img,
.cases-single .cs-banner:hover img{
  transform: none;
}

/* caption 更像註解 */
.cases-single .cs-grid-caption{
  padding-top: 12px;
  font-size: .92rem;
  color: #64748b;
  line-height: 1.7;
}
/* ==========================================
   結構型 Screens（左圖右說明）
========================================== */

.cases-single .cs-screens-structured{
  display: flex;
  flex-direction: column;
  gap: 48px;
  margin-top: 1.5rem;
}

/* 每一列 */
.cases-single .cs-screen-row{
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 40px;
  align-items: center;
}

/* 手機改直排 */
@media (max-width: 900px){
  .cases-single .cs-screen-row{
    grid-template-columns: 1fr;
    gap: 24px;
  }
}

/* 左側圖片 */
.cases-single .cs-screen-image{
  background: #f8fafc;
  padding: 18px;
  border-radius: 18px;
  border: 1px solid #e2e8f0;
  box-shadow: 0 10px 28px rgba(0,0,0,0.04);
}

.cases-single .cs-screen-image img{
  width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
}

/* 右側說明 */
.cases-single .cs-screen-explain{
  padding-right: 20px;
}

.cases-single .cs-screen-explain h3{
  font-size: 1.1rem;
  font-weight: 900;
  margin-bottom: 14px;
  color: #0f172a;
}

.cases-single .cs-screen-explain p{
  font-size: 1rem;
  line-height: 1.9;
  color: #475569;
}

/* 註解 */
.cases-single .cs-screen-note{
  margin-top: 32px;
  font-size: .9rem;
  color: #94a3b8;
}