/* ============================================================
   入口：一眼看到四张“有问题”的海报
   ============================================================ */
.page-entry {
  min-height: 100vh; min-height: 100dvh;
  display: flex; flex-direction: column;
  background:
    radial-gradient(90% 70% at 82% 0%, rgba(255, 226, 176, .75) 0%, rgba(255, 226, 176, 0) 58%),
    radial-gradient(80% 60% at 0% 100%, rgba(201, 120, 78, .12) 0%, rgba(201, 120, 78, 0) 55%),
    #f6ecda;
  overflow-x: hidden;
}
.page-entry::before {
  content: ""; position: fixed; left: 0; right: 0; top: 0; height: 5px; z-index: 50;
  background: #1d3f5e;
  background-image: repeating-linear-gradient(90deg, rgba(255, 250, 240, .35) 0 1px, transparent 1px 8px);
}
.sun-glow {
  position: fixed; right: 6%; top: 7%; width: 170px; height: 170px; border-radius: 50%;
  background: radial-gradient(circle at 50% 50%, rgba(233, 166, 92, .35), rgba(233, 166, 92, 0) 68%);
  pointer-events: none; z-index: 0;
}

/* 顶部 */
.top {
  position: relative; z-index: 2;
  width: 100%; max-width: 1280px; margin: 0 auto;
  padding: 20px 32px 6px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark {
  width: 38px; height: 38px; border-radius: 10px; flex: none;
  background-color: #1d3f5e;
  background-image:
    repeating-linear-gradient(90deg, rgba(255, 250, 240, .5) 0 1px, transparent 1px 6px),
    repeating-linear-gradient(180deg, rgba(255, 250, 240, .28) 0 1px, transparent 1px 6px);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .12);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.25; }
.brand-text b { font-family: var(--serif); font-size: 18px; letter-spacing: .12em; color: var(--ink); }
.brand-text i { font-style: normal; font-size: 10px; letter-spacing: .18em; color: var(--ui-muted); }
.teacher-link {
  border: 1px solid rgba(80, 55, 35, .18); background: rgba(255, 250, 240, .6);
  color: var(--ui-muted); border-radius: 999px; padding: 8px 14px;
  font-size: 12px; letter-spacing: .06em;
}
.teacher-link::before { content: "◌ "; color: var(--accent); }
.teacher-link:hover { background: #fffaf0; color: var(--ink); }

/* 头部文案 */
.pick {
  position: relative; z-index: 1;
  width: 100%; max-width: 1280px; margin: 0 auto;
  padding: 4px 32px 18px;
  flex: 1; min-height: 0;
  display: flex; flex-direction: column;
}
.pick-head { flex: none; padding: 12px 0 6px; }
.eyebrow {
  font-size: 11.5px; letter-spacing: .24em; color: var(--accent);
  text-transform: uppercase; display: flex; align-items: center; gap: 10px;
}
.eyebrow::before { content: ""; width: 26px; height: 1px; background: var(--accent); opacity: .55; }
.pick-head h1 {
  font-family: var(--serif); font-weight: 700;
  font-size: clamp(34px, 4.1vw, 54px); line-height: 1.24; letter-spacing: .01em;
  color: var(--ink); margin-top: 10px;
}
.hl { position: relative; z-index: 0; white-space: nowrap; }
.hl::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: .1em; height: .32em;
  background: rgba(201, 120, 78, .22); border-radius: 3px; z-index: -1;
}
.task-line {
  margin-top: 12px; max-width: 760px;
  font-size: 15px; line-height: 1.85; color: #655748;
  display: flex; align-items: flex-start; gap: 9px;
}
.task-line b { color: var(--ink); font-weight: 600; }
.task-text { display: block; min-width: 0; }
.bang {
  flex: none; width: 22px; height: 22px; margin-top: 3px; border-radius: 50%;
  background: #b23b2e; color: #fff; font-size: 14px; font-weight: 700;
  display: inline-flex; align-items: center; justify-content: center;
}

/* 四张卡片 */
.group-grid {
  flex: 1; min-height: 0;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px;
  margin-top: 14px;
}
.pick-card {
  min-height: 0; display: flex; flex-direction: column;
  background: #fffaf0; border: 1px solid rgba(120, 85, 55, .16);
  border-radius: 20px; padding: 10px;
  box-shadow: 0 16px 34px -26px rgba(80, 55, 35, .55);
  transition: transform .18s ease, box-shadow .18s ease, border-color .18s;
  animation: rise .55s cubic-bezier(.2, .8, .2, 1) both;
}
.pick-card:nth-child(2) { animation-delay: .05s; }
.pick-card:nth-child(3) { animation-delay: .1s; }
.pick-card:nth-child(4) { animation-delay: .15s; }
.pick-card:hover, .pick-card:focus-visible {
  transform: translateY(-4px); border-color: rgba(201, 120, 78, .55);
  box-shadow: 0 24px 44px -26px rgba(80, 55, 35, .6);
  outline: none;
}
.card-poster {
  position: relative; flex: 1; min-height: 0;
  border-radius: 13px; overflow: hidden;
  background:
    repeating-linear-gradient(90deg, rgba(29, 63, 94, .045) 0 1px, transparent 1px 9px),
    linear-gradient(180deg, #f3e7d2, #f8efdf);
  display: flex; align-items: center; justify-content: center;
}
.card-poster .mini { position: relative; overflow: hidden; background: var(--paper); }
.card-poster .mini .poster { box-shadow: 0 14px 30px -18px rgba(52, 38, 26, .55); }
.card-flag {
  position: absolute; top: 9px; right: 9px; z-index: 2;
  font-size: 10.5px; letter-spacing: .03em; padding: 5px 9px; border-radius: 999px;
  background: rgba(255, 250, 240, .95); border: 1px solid rgba(178, 59, 46, .3);
  color: #a33a2c;
}
.card-flag.done { background: #4f7a62; border-color: #4f7a62; color: #fffaf0; }
.card-flag.partial { background: #fff3df; border-color: rgba(201, 120, 78, .45); color: #9b5e33; }
.card-foot {
  flex: none; display: flex; align-items: flex-end; justify-content: space-between; gap: 8px;
  padding: 11px 4px 3px;
}
.card-title { display: flex; align-items: baseline; gap: 7px; flex-wrap: wrap; min-width: 0; }
.card-num { font-family: var(--serif); font-size: 13px; color: var(--accent); letter-spacing: .06em; }
.card-title b { font-family: var(--serif); font-size: 18px; color: var(--ink); letter-spacing: .03em; white-space: nowrap; }
.card-title em { font-style: normal; font-size: 11px; color: var(--ui-muted); white-space: nowrap; }
.go { font-size: 12px; color: var(--accent); white-space: nowrap; font-weight: 600; }
.go::after { content: " →"; transition: transform .2s; display: inline-block; }
.pick-card:hover .go::after { transform: translateX(3px); }

/* 页脚 */
.pick-foot {
  flex: none; display: flex; align-items: center; justify-content: space-between;
  gap: 16px; padding: 10px 2px 0;
}
.warm-quote { font-family: var(--kai); font-size: 14px; color: #8b6a4f; letter-spacing: .06em; }
.tiny-note { font-size: 10.5px; color: var(--ui-muted-2); letter-spacing: .04em; }

@keyframes rise {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: none; }
}

/* 响应式 */
@media (max-width: 980px) {
  .group-grid { grid-template-columns: repeat(2, 1fr); }
  .pick-card { min-height: 320px; }
  .pick { overflow-y: auto; }
  .card-poster { min-height: 260px; }
}
@media (max-width: 760px) {
  .top { padding: 16px 18px 4px; }
  .pick { padding: 2px 18px 14px; overflow: visible; }
  .pick-head h1 { font-size: clamp(30px, 8vw, 38px); }
  .task-line { font-size: 13px; line-height: 1.75; }
  .br-desk { display: none; }
  .group-grid { gap: 10px; margin-top: 12px; }
  .pick-card { min-height: 260px; padding: 7px; border-radius: 16px; }
  .card-poster { min-height: 210px; border-radius: 10px; }
  .card-title b { font-size: 15px; }
  .card-title em { font-size: 10px; }
  .card-num { font-size: 11px; }
  .card-flag { font-size: 9px; padding: 4px 7px; }
  .go { font-size: 11px; }
  .pick-foot { padding-top: 12px; }
  .warm-quote { font-size: 13px; }
  .tiny-note { display: none; }
}
@media (max-width: 430px) {
  .brand-mark { width: 32px; height: 32px; }
  .brand-text b { font-size: 15px; }
  .brand-text i { font-size: 9px; }
  .teacher-link { padding: 7px 10px; font-size: 11px; }
  .pick-card { min-height: 240px; }
  .card-poster { min-height: 190px; }
  .card-foot { padding-top: 8px; }
}
@media (max-height: 620px) and (orientation: landscape) {
  .pick-head h1 { font-size: 30px; }
  .task-line { display: none; }
  .group-grid { grid-template-columns: repeat(4, 1fr); }
  .pick-card { min-height: 0; }
  .pick-foot { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}

/* 老师入口弹层 */
.teacher-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.teacher-action {
  text-align: left; border: 1px solid rgba(120, 85, 55, .18); border-radius: 14px;
  background: #fffaf0; padding: 14px 15px; transition: .15s;
}
.teacher-action:hover { border-color: rgba(201, 120, 78, .55); transform: translateY(-1px); }
.teacher-action b { display: block; font-family: var(--serif); font-size: 15px; color: var(--ink); letter-spacing: .03em; }
.teacher-action span { display: block; margin-top: 4px; font-size: 11px; line-height: 1.6; color: var(--ui-muted); }
@media (max-width: 620px) {
  .teacher-grid { grid-template-columns: 1fr; }
}

.card-flag.free {
  background: #eef4f6; border-color: rgba(29, 63, 94, .3); color: #1d3f5e;
}

.br-mobile { display: none; }
@media (max-width: 560px) { .br-mobile { display: block; } }

/* 平板：iPad / Android 竖屏两列，横屏四列 */
@media (min-width: 761px) and (max-width: 1180px) {
  .top { padding: 18px 24px 4px; }
  .pick { padding: 4px 24px 18px; overflow-y: auto; }
  .pick-head h1 { font-size: 44px; }
  .group-grid { gap: 14px; margin-top: 16px; }
  .pick-card { min-height: 330px; }
  .card-poster { min-height: 270px; }
  .card-title b { font-size: 17px; }
  .card-title em { font-size: 11px; }
  .card-flag { font-size: 10px; }
}
@media (min-width: 761px) and (max-width: 1180px) and (orientation: portrait) {
  .group-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 761px) and (max-width: 1180px) and (orientation: landscape) {
  .group-grid { grid-template-columns: repeat(2, 1fr); }
  .pick-card { min-height: 310px; }
  .card-poster { min-height: 250px; }
  .pick-head h1 { font-size: 38px; }
}