/* =========================================================
   团建页 · 省广 + 朗标 融合视觉
   原则：大气自信 · 创意活力 · B端商务质感
   - 橙(#EF8200)仅作点缀，不大面积铺满
   - 去厚重阴影、大量留白、克制高级
   - 图片为视觉主角、电影质感
   - hover 极简、无弹跳；移动端单列
   ========================================================= */

/* ---------- 满屏大图 HERO ---------- */
.tb-hero{position:relative;min-height:74vh;display:flex;align-items:flex-end;
  overflow:hidden;color:#fff;background:var(--dark)}
.tb-hero>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.tb-hero::after{content:'';position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,rgba(12,16,24,.34) 0%,rgba(12,16,24,.10) 38%,rgba(12,16,24,.76) 100%)}
.tb-hero .wrap{position:relative;z-index:2;max-width:var(--max);margin:0 auto;
  padding:130px 24px 76px}

.tb-kicker{display:inline-block;position:relative;padding-left:16px;margin-bottom:20px;
  font-size:12.5px;font-weight:600;letter-spacing:2.5px;text-transform:uppercase;color:#fff}
.tb-kicker::before{content:'';position:absolute;left:0;top:50%;width:7px;height:7px;
  background:var(--primary);transform:translateY(-50%) rotate(45deg)}
.tb-kicker.dark{color:var(--primary)}

.tb-hero h1{font-size:clamp(28px,4.6vw,54px);line-height:1.14;font-weight:800;
  letter-spacing:.5px;max-width:16em;margin:0 0 20px}
.tb-hero p.lead{font-size:clamp(15px,1.4vw,19px);line-height:1.78;max-width:34em;
  color:rgba(255,255,255,.88)}

/* ---------- 通用 section ---------- */
.tb-sec{padding:96px 0}
.tb-sec.bg{background:var(--soft)}
.tb-head{max-width:760px;margin-bottom:54px}
.tb-head.center{margin-left:auto;margin-right:auto;text-align:center}
.tb-head h2{font-size:clamp(24px,3vw,38px);font-weight:800;line-height:1.25;
  margin:6px 0 16px;letter-spacing:.5px}
.tb-intro{font-size:16px;line-height:1.85;color:var(--gray)}

/* ---------- 策划能力 bento ---------- */
.tb-cap-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.tb-cap{background:#fff;border:1px solid var(--line);border-radius:var(--r);
  padding:38px 34px;transition:transform .25s ease,border-color .25s ease}
.tb-cap:hover{transform:translateY(-4px);border-color:rgba(239,130,0,.45)}
.tb-num{display:block;font-size:14px;font-weight:700;letter-spacing:1px;
  color:var(--primary);margin-bottom:14px}
.tb-cap h3{font-size:20px;font-weight:700;margin-bottom:12px}
.tb-cap p{font-size:15px;line-height:1.8;color:var(--ink2)}

/* 常见形态 chips */
.tb-shapes{margin-top:46px;display:flex;align-items:baseline;gap:18px;flex-wrap:wrap}
.tb-shape-t{font-size:13px;font-weight:600;letter-spacing:1px;color:var(--gray);flex:0 0 auto}
.tb-shapes ul{display:flex;flex-wrap:wrap;gap:12px}
.tb-shapes li{font-size:14px;color:var(--ink2);border:1px solid var(--line);
  border-radius:999px;padding:7px 18px;background:#fff}

/* ---------- 案例 分层错落（省广全景 + 朗标留白） ---------- */
.tb-works{display:grid;grid-template-columns:repeat(12,1fr);gap:60px 40px;align-items:start}
.tb-work{margin:0}
.tb-work-img{position:relative;overflow:hidden;border-radius:var(--r);background:var(--dark)}
.tb-work-img img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .6s ease}
.tb-work:hover .tb-work-img img{transform:scale(1.03)}
.tb-ph{position:absolute;right:12px;bottom:12px;z-index:2;font-size:11px;letter-spacing:.5px;
  color:#fff;background:rgba(18,20,26,.5);padding:4px 10px;border-radius:6px}
/* 朗标：图片与文字之间预留充足空白 */
.tb-work figcaption{margin-top:24px}
.tb-case-tag{display:inline-block;font-size:12.5px;font-weight:600;letter-spacing:1px;
  color:var(--primary);margin-bottom:10px}
.tb-work h3{font-size:19px;font-weight:700;line-height:1.4;margin-bottom:10px}
.tb-work p{font-size:14.5px;line-height:1.75;color:var(--gray);max-width:30em}

/* ① 全景大图：满宽 21:9 */
.tb-work.feat{grid-column:span 12}
.tb-work.feat .tb-work-img{aspect-ratio:21/9}
/* ② 团队特写：竖 3:4 */
.tb-work.tall{grid-column:span 4}
.tb-work.tall .tb-work-img{aspect-ratio:3/4}
/* ③ 细节特写：方 1:1 */
.tb-work.sq{grid-column:span 4}
.tb-work.sq .tb-work-img{aspect-ratio:1/1}
/* ④ 氛围中景：横 4:3 */
.tb-work.mid{grid-column:span 4}
.tb-work.mid .tb-work-img{aspect-ratio:4/3}

/* ---------- 客户 LOGO 背书 ---------- */
.tb-logos{display:grid;grid-template-columns:repeat(5,1fr);gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.tb-logos img{background:#fff;height:96px;width:100%;object-fit:contain;padding:22px;
  filter:grayscale(1);opacity:.7;transition:filter .3s ease,opacity .3s ease}
.tb-logos img:hover{filter:grayscale(0);opacity:1}

/* ---------- CTA ---------- */
.tb-cta{background:var(--dark);color:#fff;padding:84px 0;text-align:center}
.tb-cta h2{font-size:clamp(22px,2.6vw,32px);font-weight:800;margin-bottom:14px}
.tb-cta p{color:rgba(255,255,255,.66);margin-bottom:30px;font-size:16px}
.tb-cta-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ---------- 响应式 ---------- */
@media(max-width:900px){
  .tb-sec{padding:64px 0}
  .tb-head{margin-bottom:36px}
  .tb-cap-grid{grid-template-columns:1fr;gap:16px}
  .tb-works{grid-template-columns:1fr;gap:44px}
  .tb-work.feat,.tb-work.tall,.tb-work.sq,.tb-work.mid{grid-column:span 1}
  .tb-work.feat .tb-work-img{aspect-ratio:16/9}
  .tb-work.tall .tb-work-img{aspect-ratio:4/5}
  .tb-logos{grid-template-columns:repeat(3,1fr)}
  .tb-hero .wrap{padding:110px 24px 56px}
}
@media(max-width:560px){
  .tb-logos{grid-template-columns:repeat(2,1fr)}
  .tb-logos img{height:72px;padding:16px}
  .tb-cap{padding:28px 22px}
  .tb-head{margin-bottom:28px}
  .tb-sec{padding:52px 0}
}