/* ============================================================
   V41 · 数字课件平台入口（首页横幅 + 课程页专区）
   设计语言延续 v40：竹青绿 · 直角 · 衬线标题 · 细线网格
   ============================================================ */

/* ── 首页：桥接横幅（场景区之后） ── */
.v41-platform-bridge{display:grid;grid-template-columns:170px 1fr auto 24px;align-items:center;gap:22px;margin-top:22px;padding:22px 26px;border:1px solid rgba(22,184,134,.28);background:linear-gradient(90deg,rgba(22,184,134,.09),rgba(22,184,134,.02));color:var(--wl-ink);text-decoration:none}
.v41-platform-bridge>span{color:#087A5A;font-size:11px;font-weight:800;letter-spacing:.1em}
.v41-platform-bridge strong{font-family:var(--wl-display);font-size:20px;letter-spacing:-.03em}
.v41-platform-bridge em{color:var(--wl-muted);font-size:12px;font-style:normal}
.v41-platform-bridge>b{color:var(--wl-bamboo);font-size:20px;font-weight:500}
.v41-platform-bridge:hover,.v41-platform-bridge:focus-visible{border-color:var(--wl-bamboo);background:rgba(22,184,134,.14);outline:none}

/* ── 课程页：平台专区（深墨绿底） ── */
.v41-platform{padding:105px 0;background:#063B33;color:#fff}
.v41-platform .v40-kicker{color:var(--wl-bamboo-light)}
.v41-platform h2{margin:0;color:#fff;font-family:var(--wl-display);font-size:clamp(32px,3.8vw,52px);font-weight:700;letter-spacing:-.055em;line-height:1.2}
.v41-platform .v41-lead{max-width:640px;margin:20px 0 0;color:rgba(255,255,255,.72);font-size:15px;line-height:1.95}
.v41-course-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:26px;margin-top:56px}
.v41-course-card{position:relative;display:flex;flex-direction:column;padding:34px 32px 30px;background:rgba(255,255,255,.045);border:1px solid rgba(167,243,208,.20);color:#fff;text-decoration:none;transition:border-color .2s,background .2s,transform .2s}
.v41-course-card:hover,.v41-course-card:focus-visible{border-color:rgba(167,243,208,.55);background:rgba(255,255,255,.07);transform:translateY(-4px);outline:none}
.v41-course-mark{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:24px}
.v41-course-mark span{padding:7px 11px;border:1px solid rgba(22,184,134,.5);color:var(--wl-bamboo-light);font-size:10px;font-weight:800;letter-spacing:.14em}
.v41-course-mark b{color:var(--wl-bamboo-light);font-family:var(--wl-display);font-size:38px;font-weight:700;line-height:1}
.v41-course-mark b i{margin-left:3px;color:rgba(255,255,255,.55);font-family:var(--wl-sans);font-size:12px;font-style:normal;font-weight:500}
.v41-course-card h3{margin:0 0 14px;font-family:var(--wl-display);font-size:26px;font-weight:700;letter-spacing:-.04em;line-height:1.3}
.v41-course-card>p{margin:0;color:rgba(255,255,255,.7);font-size:13.5px;line-height:1.9}
.v41-course-feats{display:grid;gap:0;margin:26px 0 0;border-top:1px solid rgba(167,243,208,.16)}
.v41-course-feats li{display:flex;align-items:baseline;gap:12px;padding:12px 0;border-bottom:1px solid rgba(167,243,208,.16);color:rgba(255,255,255,.82);font-size:12.5px;line-height:1.7;list-style:none}
.v41-course-feats li::before{content:"";flex:none;width:5px;height:5px;background:var(--wl-bamboo);transform:translateY(-3px)}
.v41-course-cta{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:30px;color:var(--wl-bamboo-light);font-size:13px;font-weight:700}
.v41-course-card:hover .v41-course-cta b{transform:translateX(5px)}
.v41-course-cta b{font-size:18px;font-weight:500;transition:transform .2s}
.v41-platform-note{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;margin-top:30px;padding:19px 24px;border:1px solid rgba(167,243,208,.18);background:rgba(4,37,31,.5)}
.v41-platform-note p{margin:0;color:rgba(255,255,255,.62);font-size:12px;line-height:1.8}
.v41-platform-note a{flex:none;padding:12px 17px;background:var(--wl-bamboo);color:#032820;font-size:12.5px;font-weight:800;text-decoration:none}
.v41-platform-note a:hover,.v41-platform-note a:focus-visible{background:var(--wl-bamboo-light);outline:none}

/* ── 课程页：课程安排速览（研学营三天课表 + 示范校阶段图） ── */
.v41-sched{margin-top:64px}
.v41-sched-head{display:flex;align-items:baseline;gap:16px;flex-wrap:wrap}
.v41-sched-head .v40-kicker{margin:0}
.v41-sched-head h3{margin:0;font-family:var(--wl-display);font-size:24px;font-weight:700;letter-spacing:-.04em;color:#fff}
.v41-sched-head>span{color:rgba(255,255,255,.5);font-size:12px;letter-spacing:.02em}
.v41-sched-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:28px}
.v41-sched-col{border:1px solid rgba(167,243,208,.18);background:rgba(255,255,255,.03)}
.v41-sched-day{display:flex;align-items:baseline;gap:12px;padding:15px 20px;border-bottom:1px solid rgba(167,243,208,.18);background:rgba(22,184,134,.10)}
.v41-sched-day span{font-family:var(--wl-display);font-size:11px;font-weight:800;letter-spacing:.16em;color:var(--wl-bamboo-light)}
.v41-sched-day b{font-size:14.5px;font-weight:700;color:#fff;letter-spacing:-.02em}
.v41-sched-col ul{margin:0;padding:6px 0;list-style:none}
.v41-sched-col li{display:flex;gap:13px;padding:7.5px 20px;font-size:12.5px;line-height:1.65}
.v41-sched-col li i{flex:none;width:42px;color:var(--wl-bamboo-light);font-family:var(--wl-display);font-style:normal;font-size:11.5px;font-weight:700;letter-spacing:.02em}
.v41-sched-col li span{color:rgba(255,255,255,.62)}
.v41-sched-col li.hl span{color:rgba(255,255,255,.92)}
.v41-stage-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:28px}
.v41-stage-card{display:grid;grid-template-columns:auto 1fr;gap:5px 16px;padding:22px 24px;border:1px solid rgba(167,243,208,.18);background:rgba(255,255,255,.03);transition:border-color .2s,background .2s}
.v41-stage-card:hover{border-color:rgba(167,243,208,.45);background:rgba(255,255,255,.055)}
.v41-stage-card .v41-stage-no{grid-row:1/3;align-self:start;font-family:var(--wl-display);font-size:30px;font-weight:700;color:rgba(22,184,134,.55);line-height:1}
.v41-stage-card b{font-size:15px;font-weight:700;color:#fff;letter-spacing:-.02em}
.v41-stage-card p{margin:0;color:rgba(255,255,255,.66);font-size:12.5px;line-height:1.8}

@media(max-width:840px){
  .v41-platform{padding:72px 0}
  .v41-course-grid{grid-template-columns:1fr;gap:18px}
  .v41-sched-grid{grid-template-columns:1fr}
  .v41-stage-grid{grid-template-columns:1fr 1fr}
  .v41-platform-bridge{grid-template-columns:1fr auto;gap:8px;padding:18px}
  .v41-platform-bridge>span,.v41-platform-bridge strong{grid-column:1}
  .v41-platform-bridge em{grid-column:1}
  .v41-platform-bridge>b{grid-column:2;grid-row:1/4;align-self:center}
}
@media(max-width:560px){
  .v41-course-card{padding:26px 22px 24px}
  .v41-course-card h3{font-size:22px}
  .v41-course-mark b{font-size:32px}
  .v41-stage-grid{grid-template-columns:1fr}
  .v41-platform-note{align-items:flex-start;flex-direction:column}
  .v41-platform-note a{width:100%;text-align:center}
}