:root {
  /* 2026-08-17: 对齐 insight 分享卡 v2 青金纸面 token */
  --share-paper: #F4ECD8;
  --share-ink: #241C12;
  --share-teal: #0c665d;
  --share-teal-deep: #08403A;
  --share-teal-bright: #13776B;
  --share-gold: #D4B25A;
  --share-gold-deep: #B4842B;
  --share-cream: #FBF6EA;
}

body.share-open { overflow: hidden; }

.share-sheet {
  width: 100%;
  max-width: none;
  height: 100%;
  max-height: none;
  padding: 0;
  border: 0;
  background: transparent;
}

.share-sheet::backdrop { background: rgb(8 20 16 / 72%); backdrop-filter: blur(10px); }

.share-sheet__panel {
  position: fixed;
  inset: 0 0 0 auto;
  display: grid;
  width: min(100%, 620px);
  grid-template-rows: auto minmax(0, 1fr) auto auto;
  gap: 18px;
  padding: 30px clamp(20px, 4vw, 38px) max(24px, env(safe-area-inset-bottom));
  overflow: auto;
  color: var(--share-ink);
  background: #fbfaf6;
  box-shadow: -24px 0 70px rgb(4 20 15 / 22%);
}

.share-sheet__close { position: absolute; top: 20px; right: 20px; z-index: 2; }
.share-sheet__head { padding-right: 54px; }
.share-sheet__head h2 { margin: 8px 0 5px; font: 720 clamp(28px, 5vw, 42px)/1.08 var(--font-display); letter-spacing: -.035em; }
.share-sheet__head p { margin: 0; color: var(--ink-2); line-height: 1.65; }

.share-poster-frame {
  display: grid;
  min-height: 0;
  place-items: center;
  padding: 4px;
}

.share-poster {
  position: relative;
  display: grid;
  width: min(100%, 400px);
  aspect-ratio: 2 / 3;
  /* 2026-08-18: 各行高度全部确定（atlas 固定 118px，foot 由内容决定），
     不再用 1fr 弹性行——避免屏幕预览(高由 aspect-ratio 算)与导出(固定 600px)
     对弹性空间分配不同而导致的内容与背景错位。body 行用 1fr 吸收剩余空间。 */
  grid-template-rows: auto minmax(0, 1fr) auto auto;
  overflow: hidden;
  border: 1px solid rgb(12 102 93 / 30%);
  border-radius: 22px;
  color: var(--share-ink);
  background: var(--share-paper);
  box-shadow: 0 20px 55px rgb(27 43 34 / 18%);
}

.share-poster::after {
  content: none; /* 2026-08-17: 去掉大水印 glyph，对齐 insight v2 干净纸面 */
}

/* 2026-08-18: 导出态切 flex column（html2canvas 对 grid 混合行高支持差会错位）。
   视觉与屏幕 grid 等价：body 弹性吸收剩余空间并垂直居中，atlas/foot 固定。 */
.share-poster.is-exporting { display: flex; flex-direction: column; aspect-ratio: auto; }
.share-poster.is-exporting .share-poster__body { flex: 1 1 auto; min-height: 0; }
.share-poster.is-exporting .share-poster__atlas { flex: 0 0 118px; }
.share-poster.is-exporting .share-poster__foot { flex: 0 0 auto; }

/* 深绿渐变品牌头 + 金色描边（对齐 insight v2） */
.share-poster__brand {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 22px;
  border-bottom: 1.5px solid rgb(212 178 90 / 60%);
  background: linear-gradient(118deg, var(--share-teal-deep) 0%, var(--share-teal) 55%, var(--share-teal-bright) 100%);
}
.share-poster__wordmark {
  display: block;
  width: 138px;
  height: 36px;
  padding: 4px 8px;
  object-fit: contain;
  object-position: left center;
  background: var(--share-cream);
}
.share-poster__brand small { color: rgb(251 244 230 / 76%); font-size: 10px; letter-spacing: 1.2px; white-space: nowrap; }
.share-poster__body { position: relative; z-index: 1; display: grid; align-content: center; gap: 12px; padding: 20px 22px 8px; }
.share-poster__body time { color: var(--share-teal); font: 760 14px/1 var(--font-mono); }
.share-poster__body h3 { margin: 0; color: var(--share-ink); font: 800 clamp(24px, 6vw, 34px)/1.2 var(--font-display); letter-spacing: -.02em; }
.share-poster__rule { width: 54px; height: 4px; background: linear-gradient(90deg, var(--share-teal), var(--share-gold)); }
.share-poster__body p { margin: 0; color: #4a3d2c; font-size: 14px; line-height: 1.55; }

/* 清北校园·星座网络横幅（对齐 insight v2） */
.share-poster__atlas {
  position: relative;
  z-index: 1;
  height: 118px;
  margin: 10px 0 0;
  border-top: 1.5px solid rgb(212 178 90 / 55%);
  border-bottom: 1.5px solid rgb(212 178 90 / 55%);
  background: #EDE4D0 url("/assets/locus-atlas.jpg") center 46% / cover no-repeat;
}
.share-poster__atlas span {
  position: absolute;
  left: 14px;
  bottom: 10px;
  padding: 4px 9px 4px 8px;
  border-left: 3px solid var(--share-teal);
  color: var(--share-teal);
  background: rgb(251 246 234 / 95%);
  font: 700 9px/1 var(--font-mono);
  letter-spacing: 1px;
}

.share-poster__foot { position: relative; z-index: 1; display: grid; grid-template-columns: 1fr 92px; align-items: end; gap: 18px; padding: 14px 22px 16px; border-top: 1.5px solid rgb(212 178 90 / 45%); }
.share-poster__foot strong, .share-poster__foot span, .share-poster__foot small { display: block; }
.share-poster__foot strong { margin-bottom: 7px; color: var(--share-teal); font-size: 13px; }
.share-poster__foot span { color: #4a3d2c; font-size: 11.5px; line-height: 1.5; }
.share-poster__foot small { margin-top: 10px; color: var(--share-gold-deep); font-weight: 600; }
.share-poster__qr { display: grid; width: 92px; place-items: center; padding: 7px 7px 5px; border: 1px solid rgb(212 178 90 / 50%); border-radius: 9px; background: var(--share-cream); }
/* 2026-08-18: 单个 <img> 二维码，固定 78px，屏幕与导出一致不溢出 */
.share-poster__qr-img { display: block; width: 78px; height: 78px; }
.share-poster__qr-url { margin-top: 4px; color: rgb(36 28 18 / 45%); font: 400 8px/1 monospace; letter-spacing: .2px; }

.share-sheet__actions { display: grid; grid-template-columns: 1fr 1fr auto; gap: 10px; }
.share-sheet__status { min-height: 22px; margin: 0; color: var(--ink-2); font-size: 12px; text-align: center; }

.draft-import {
  display: grid;
  gap: 14px;
  margin-bottom: 22px;
  padding: 20px;
  border: 1px solid color-mix(in srgb, var(--place) 35%, var(--line));
  border-radius: 18px;
  background: color-mix(in srgb, var(--place) 5%, var(--surface));
}
.draft-import__head { display: flex; align-items: end; justify-content: space-between; gap: 18px; }
.draft-import__head h3 { margin: 5px 0 0; color: var(--ink); font-size: 22px; }
.draft-import__head > span { color: var(--ink-2); font-size: 11px; white-space: nowrap; }
.draft-import__tabs { display: grid; grid-template-columns: repeat(3, 1fr); padding: 4px; border-radius: 13px; background: rgb(17 53 42 / 7%); }
.draft-import__tabs button { min-height: 42px; border: 0; border-radius: 10px; color: var(--ink-2); background: transparent; font: 730 13px/1 var(--font-ui); }
.draft-import__tabs button[aria-selected="true"] { color: var(--place); background: var(--surface); box-shadow: 0 1px 5px rgb(21 49 39 / 13%); }
.draft-import__drop { display: grid; min-height: 116px; place-items: center; border: 1px dashed color-mix(in srgb, var(--place) 45%, var(--line)); border-radius: 14px; cursor: pointer; }
.draft-import__drop input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.draft-import__drop span, .draft-import__drop small { display: block; text-align: center; }
.draft-import__drop small { margin-top: 6px; color: var(--ink-2); }
.draft-import__preview { position: relative; min-height: 160px; overflow: hidden; border-radius: 14px; background: #e8e8e1; }
.draft-import__preview img { display: block; width: 100%; max-height: 280px; object-fit: contain; }
.draft-import__preview button { position: absolute; top: 10px; right: 10px; min-height: 40px; padding: 0 14px; border: 0; border-radius: 999px; background: rgb(255 255 255 / 90%); }
.draft-import__actions { display: grid; grid-template-columns: auto 1fr; align-items: center; gap: 14px; }
.draft-import__actions p { margin: 0; color: var(--ink-2); font-size: 11px; line-height: 1.5; }

.plan-export-actions { display: flex; flex-wrap: wrap; align-items: center; justify-content: flex-end; gap: 10px; }
.plan-export-actions .button { white-space: nowrap; }

@media (max-width: 640px) {
  .share-sheet__panel { width: 100%; padding-top: 24px; }
  .share-sheet__actions { grid-template-columns: 1fr 1fr; }
  .share-sheet__actions .text-button { grid-column: 1 / -1; }
  .draft-import__head { align-items: start; flex-direction: column; gap: 6px; }
  .draft-import__actions { grid-template-columns: 1fr; }
  .plan-export-actions { width: 100%; justify-content: stretch; }
  .plan-export-actions .button { flex: 1; }
}