:root {
  --sp-ink: #17231d;
  --sp-muted: #6b746e;
  --sp-paper: #f5f3ed;
  --sp-card: #fffefb;
  --sp-line: #dfdfd7;
  --sp-green: #245c45;
  --sp-green-dark: #173f2f;
  --sp-green-soft: #e5eee8;
  --sp-orange: #c96b37;
  --sp-orange-soft: #faeee5;
  --sp-blue: #48677c;
  --sp-blue-soft: #e9eff2;
  --sp-red: #a33e38;
  --sp-red-soft: #f8e9e7;
  --sp-shadow: 0 8px 26px rgba(23, 35, 29, .07);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--sp-ink);
  background:
    radial-gradient(1100px 520px at 12% -12%, #ffffff 0%, rgba(255, 255, 255, 0) 62%),
    radial-gradient(900px 480px at 100% 0%, #eef4ef 0%, rgba(238, 244, 239, 0) 60%),
    var(--sp-paper);
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.65;
  -webkit-text-size-adjust: 100%;
}

h1, h2, h3, h4 { margin: 0; line-height: 1.35; }
p { margin: 0; }
button { font: inherit; }

.sp-sr {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.sp-topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: rgba(245, 243, 237, .92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--sp-line);
}

.sp-brand {
  display: inline-flex;
  gap: 10px;
  align-items: center;
  min-width: 0;
  color: var(--sp-ink);
  text-decoration: none;
}

.sp-mark {
  width: 38px; height: 38px;
  flex: 0 0 38px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  color: #fff;
  background: var(--sp-green);
  font-weight: 800;
  transform: rotate(-3deg);
}

.sp-brand-text { min-width: 0; }
.sp-brand-text strong { display: block; font-size: 16px; }
.sp-brand-text small { display: block; color: var(--sp-muted); font-size: 11px; overflow-wrap: anywhere; }

.sp-top-actions { display: flex; gap: 8px; align-items: center; flex: 0 0 auto; }
.sp-user { color: var(--sp-muted); font-size: 12px; font-weight: 700; }

.sp-main { max-width: 1440px; margin: 0 auto; padding: 14px 16px 60px; }

.sp-message { min-height: 22px; color: var(--sp-red); font-size: 13px; font-weight: 700; }
.sp-message:empty { min-height: 0; }

.sp-btn {
  min-height: 38px;
  padding: 8px 14px;
  border: 1px solid transparent;
  border-radius: 11px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 800;
  color: var(--sp-ink);
  background: #fff;
  transition: background .15s, border-color .15s, opacity .15s;
}

.sp-btn-small { min-height: 32px; padding: 5px 10px; font-size: 12px; border-radius: 9px; }
.sp-btn-wide { width: 100%; }
.sp-btn-primary { color: #fff; background: var(--sp-green); }
.sp-btn-primary:hover { background: var(--sp-green-dark); }
.sp-btn-secondary { color: var(--sp-green-dark); background: var(--sp-green-soft); }
.sp-btn-ghost { background: #fff; border-color: var(--sp-line); color: var(--sp-muted); }
.sp-btn-ghost:hover { color: var(--sp-green-dark); border-color: var(--sp-green-soft); background: var(--sp-green-soft); }
.sp-btn-danger { color: #fff; background: var(--sp-red); }
.sp-btn:disabled { opacity: .5; cursor: not-allowed; }

.hidden { display: none !important; }
.sp-muted { color: var(--sp-muted); font-size: 13px; }
.sp-note { margin-top: 10px; color: var(--sp-muted); font-size: 12px; }
.sp-eyebrow { color: var(--sp-orange); font-size: 10px; font-weight: 900; letter-spacing: .14em; }
.sp-prewrap { white-space: pre-wrap; overflow-wrap: anywhere; }

/* login */
.sp-login { max-width: 460px; margin: 6vh auto 0; }
.sp-login h1 { margin: 6px 0 8px; font-size: 26px; }
.sp-card {
  margin-top: 16px;
  padding: 18px;
  border: 1px solid rgba(56, 68, 60, .12);
  border-radius: 18px;
  background: var(--sp-card);
  box-shadow: var(--sp-shadow);
}
.sp-field { display: grid; gap: 6px; margin-bottom: 12px; }
.sp-field > span { font-size: 12px; font-weight: 800; color: var(--sp-muted); }
input, textarea, select {
  width: 100%;
  max-width: 100%;
  color: var(--sp-ink);
  background: #fff;
  border: 1px solid #d7d9d3;
  border-radius: 10px;
  outline: none;
  padding: 10px 12px;
  font: inherit;
  font-size: 14px;
}
textarea { resize: vertical; line-height: 1.7; }
input:focus, textarea:focus, select:focus { border-color: var(--sp-green); box-shadow: 0 0 0 3px rgba(36, 92, 69, .1); }
.sp-error { min-height: 20px; color: var(--sp-red); font-size: 13px; font-weight: 700; }

/* layout */
.sp-app { display: grid; grid-template-columns: 262px minmax(0, 1fr); gap: 16px; align-items: start; }

.sp-sidebar {
  position: sticky;
  top: 72px;
  max-height: calc(100vh - 92px);
  overflow: auto;
  padding: 12px;
  border: 1px solid rgba(56, 68, 60, .12);
  border-radius: 18px;
  background: rgba(255, 254, 251, .94);
  box-shadow: var(--sp-shadow);
}
.sp-side-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 8px; }
.sp-side-head strong { font-size: 13px; }
.sp-tree { display: grid; gap: 4px; }
.sp-tree details { border-radius: 10px; }
.sp-tree summary {
  list-style: none;
  cursor: pointer;
  padding: 6px 8px;
  border-radius: 9px;
  font-size: 12px;
  font-weight: 800;
  color: var(--sp-muted);
}
.sp-tree summary::-webkit-details-marker { display: none; }
.sp-tree summary::before { content: "› "; color: var(--sp-green); }
.sp-tree details[open] > summary::before { content: "⌄ "; }
.sp-tree summary:hover { background: var(--sp-green-soft); color: var(--sp-green-dark); }
.sp-tree-phase > summary { color: var(--sp-ink); font-size: 13px; }
.sp-tree-dates { display: grid; gap: 2px; padding: 2px 0 4px 10px; }
.sp-tree-titles { display: grid; gap: 2px; padding: 2px 0 4px 12px; }
.sp-tree-item {
  width: 100%;
  min-height: 30px;
  padding: 5px 8px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--sp-muted);
  font-size: 11px;
  font-weight: 700;
  text-align: left;
  cursor: pointer;
  overflow-wrap: anywhere;
}
.sp-tree-item:hover { background: var(--sp-green-soft); color: var(--sp-green-dark); }

.sp-backdrop { display: none; }

.sp-content { min-width: 0; }
.sp-intro h1 { font-size: 24px; }
.sp-intro p { margin-top: 6px; }

.sp-toolbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  margin: 14px 0 10px;
  padding: 10px;
  border: 1px solid var(--sp-line);
  border-radius: 14px;
  background: rgba(255, 254, 251, .9);
}
.sp-search { display: block; min-width: 0; }
.sp-toolbar-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; justify-content: flex-end; }

/* board */
.sp-board { display: grid; gap: 10px; }

details.sp-l1, details.sp-l2, details.sp-l3, details.sp-l4 { min-width: 0; }
details summary { list-style: none; cursor: pointer; }
details summary::-webkit-details-marker { display: none; }

.sp-l1 {
  border: 1px solid rgba(56, 68, 60, .12);
  border-radius: 18px;
  background: rgba(255, 254, 251, .8);
  overflow: hidden;
}
.sp-l1 > summary {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr) auto;
  gap: 10px;
  align-items: center;
  padding: 13px 15px;
  background: linear-gradient(120deg, #f1f6f2, #fffaf3);
}
.sp-caret { color: var(--sp-green); font-weight: 900; font-size: 12px; }
.sp-l1 > summary .sp-caret::after { content: "▸"; }
.sp-l1[open] > summary .sp-caret::after { content: "▾"; }
.sp-l1-title { font-size: 16px; font-weight: 900; }
.sp-l1-sub { color: var(--sp-muted); font-size: 12px; }
.sp-l1-body { padding: 8px 10px 12px; display: grid; gap: 8px; }

.sp-l2 { border: 1px solid var(--sp-line); border-radius: 14px; background: #fff; overflow: hidden; }
.sp-l2 > summary {
  display: flex;
  gap: 10px;
  align-items: center;
  padding: 10px 12px;
  background: #faf9f4;
}
.sp-l2 > summary .sp-caret::after { content: "▸"; }
.sp-l2[open] > summary .sp-caret::after { content: "▾"; }
.sp-l2-date { font-size: 14px; font-weight: 900; }
.sp-l2-sub { margin-left: auto; color: var(--sp-muted); font-size: 11px; }
.sp-l2-body { padding: 8px; display: grid; gap: 8px; }

.sp-l3 { border: 1px solid var(--sp-line); border-radius: 12px; background: var(--sp-card); overflow: hidden; }
.sp-l3 > summary {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 8px 10px;
  align-items: start;
  padding: 10px 12px;
}
.sp-l3 > summary:hover { background: #f7f9f7; }
.sp-num {
  padding: 3px 0;
  border-radius: 8px;
  text-align: center;
  color: var(--sp-green-dark);
  background: var(--sp-green-soft);
  font-size: 12px;
  font-weight: 900;
}
.sp-v-title { font-size: 14px; font-weight: 800; overflow-wrap: anywhere; }
.sp-v-meta { grid-column: 2; display: flex; flex-wrap: wrap; gap: 5px; }
.sp-chip {
  padding: 2px 8px;
  border-radius: 999px;
  background: var(--sp-green-soft);
  color: var(--sp-green-dark);
  font-size: 11px;
  font-weight: 800;
  overflow-wrap: anywhere;
}
.sp-chip-date { background: #f2f1ea; color: var(--sp-muted); }
.sp-chip-fw { background: var(--sp-blue-soft); color: var(--sp-blue); }
.sp-chip-series { background: var(--sp-orange-soft); color: var(--sp-orange); }
.sp-chip-status-todo { background: #f2f1ea; color: var(--sp-muted); }
.sp-chip-status-shot { background: var(--sp-orange-soft); color: var(--sp-orange); }
.sp-chip-status-done { background: var(--sp-green-soft); color: var(--sp-green-dark); }
.sp-l3-body { padding: 4px 12px 14px; display: grid; gap: 8px; }

.sp-l4 { border: 1px solid var(--sp-line); border-radius: 11px; background: #fff; }
.sp-l4 > summary {
  display: flex;
  gap: 8px;
  align-items: center;
  padding: 8px 11px;
  font-size: 13px;
  font-weight: 800;
  color: var(--sp-green-dark);
  background: #f8f9f6;
}
.sp-l4 > summary .sp-caret::after { content: "▸"; color: var(--sp-green); }
.sp-l4[open] > summary .sp-caret::after { content: "▾"; }
.sp-l4 > summary .sp-count { margin-left: auto; color: var(--sp-muted); font-size: 11px; font-weight: 700; }
.sp-l4-body { padding: 10px 12px; display: grid; gap: 10px; }

.sp-block { display: grid; gap: 4px; min-width: 0; }
.sp-label { color: var(--sp-muted); font-size: 11px; font-weight: 900; letter-spacing: .04em; }
.sp-text { margin: 0; padding: 9px 11px; border-radius: 10px; background: #f8f8f4; font-size: 13.5px; white-space: pre-wrap; overflow-wrap: anywhere; }
.sp-text-lead { background: var(--sp-green-soft); font-size: 14px; }
.sp-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 6px;
  padding: 9px 11px;
  border: 1px solid var(--sp-line);
  border-radius: 10px;
  background: #fcfcf9;
}
.sp-row-head { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.sp-step-name { font-size: 13px; font-weight: 900; }
.sp-step-position { padding: 1px 7px; border-radius: 999px; background: var(--sp-orange-soft); color: var(--sp-orange); font-size: 11px; font-weight: 800; }
.sp-inline-head { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.sp-inline-head .sp-label { margin: 0; }
.sp-copy {
  padding: 2px 8px;
  border: 1px solid var(--sp-line);
  border-radius: 8px;
  background: #fff;
  color: var(--sp-green-dark);
  font-size: 11px;
  font-weight: 800;
  cursor: pointer;
}
.sp-copy:hover { background: var(--sp-green-soft); }

.sp-media-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(168px, 1fr)); gap: 10px; }
.sp-media-item { border: 1px solid var(--sp-line); border-radius: 11px; padding: 8px; background: #fcfcf9; min-width: 0; }
.sp-media-item img, .sp-media-item video { width: 100%; border-radius: 9px; background: #eceae4; display: block; }
.sp-media-item video { max-height: 220px; }
.sp-media-name { margin-top: 6px; font-size: 11.5px; font-weight: 700; overflow-wrap: anywhere; }
.sp-media-sub { color: var(--sp-muted); font-size: 11px; }
.sp-media-actions { margin-top: 6px; display: flex; gap: 6px; flex-wrap: wrap; }

.sp-drop {
  display: grid;
  gap: 8px;
  padding: 12px;
  border: 1px dashed #bcc6be;
  border-radius: 12px;
  background: #fbfbf7;
  cursor: pointer;
}
.sp-drop.is-over { border-color: var(--sp-green); background: var(--sp-green-soft); }
.sp-drop-head { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.sp-pending-list { display: grid; gap: 6px; }
.sp-pending-item {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  align-items: center;
  padding: 6px 9px;
  border-radius: 9px;
  background: #f2f4f0;
  font-size: 12px;
}
.sp-pending-name { overflow-wrap: anywhere; font-weight: 700; }
.sp-pending-sub { color: var(--sp-muted); font-size: 11px; }
.sp-progress { height: 7px; border-radius: 999px; background: #dfe3dd; overflow: hidden; }
.sp-progress > span { display: block; width: 0; height: 100%; background: var(--sp-green); transition: width .2s; }
.sp-hint { color: var(--sp-muted); font-size: 11.5px; line-height: 1.6; }
.sp-error-list { margin: 0; padding-left: 18px; color: var(--sp-red); font-size: 12px; overflow-wrap: anywhere; }

.sp-highlight > summary { box-shadow: inset 0 0 0 2px var(--sp-green); border-radius: 12px; }
.sp-tree-item.sp-highlight { background: var(--sp-green-soft); color: var(--sp-green-dark); }
.sp-dim { opacity: .35; }

/* dialogs */
.sp-dialog {
  width: min(860px, calc(100vw - 20px));
  max-height: min(88vh, calc(100vh - 24px));
  padding: 0;
  border: 0;
  border-radius: 18px;
  color: var(--sp-ink);
  background: var(--sp-card);
  box-shadow: 0 30px 90px rgba(19, 28, 23, .3);
  overflow: hidden;
}
.sp-dialog-small { width: min(460px, calc(100vw - 20px)); }
.sp-dialog::backdrop { background: rgba(19, 28, 23, .42); }
.sp-dialog-head {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--sp-line);
  background: linear-gradient(120deg, #f1f6f2, #fffaf3);
}
.sp-dialog-head h2 { font-size: 17px; }
.sp-dialog-body { padding: 12px 16px; overflow: auto; max-height: calc(88vh - 130px); -webkit-overflow-scrolling: touch; }
.sp-dialog-foot {
  display: flex;
  gap: 10px;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  border-top: 1px solid var(--sp-line);
  background: #faf9f4;
}
.sp-dialog-buttons { display: flex; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
.sp-editor-status { min-height: 18px; color: var(--sp-red); font-size: 12px; font-weight: 700; overflow-wrap: anywhere; }
.sp-editor-status.is-ok { color: var(--sp-green); }
.sp-icon-button {
  width: 34px; height: 34px;
  flex: 0 0 34px;
  border: 0;
  border-radius: 50%;
  background: #f0f0eb;
  cursor: pointer;
  font-size: 20px;
  line-height: 1;
}

.sp-editor-group { margin-bottom: 10px; border: 1px solid var(--sp-line); border-radius: 12px; background: #fff; overflow: hidden; }
.sp-editor-group > summary { padding: 9px 12px; font-size: 13px; font-weight: 900; color: var(--sp-green-dark); background: #f7f9f6; }
.sp-editor-group > summary .sp-caret::after { content: "▸"; color: var(--sp-green); }
.sp-editor-group[open] > summary .sp-caret::after { content: "▾"; }
.sp-editor-grid { padding: 10px 12px; display: grid; gap: 10px; }
.sp-step-edit { padding: 10px; border: 1px dashed #c9cec7; border-radius: 10px; display: grid; gap: 8px; background: #fcfcf9; }
.sp-step-edit-head { display: flex; gap: 8px; align-items: center; justify-content: space-between; }
.sp-step-edit-title { font-size: 12px; font-weight: 900; }
.sp-textarea-tall textarea { min-height: 190px; }

.sp-toast {
  position: fixed;
  z-index: 60;
  left: 50%;
  bottom: 22px;
  transform: translate(-50%, 16px);
  opacity: 0;
  pointer-events: none;
  max-width: calc(100vw - 28px);
  padding: 11px 16px;
  border-radius: 11px;
  color: #fff;
  background: #17231d;
  font-size: 13px;
  transition: opacity .2s, transform .2s;
}
.sp-toast.is-visible { opacity: 1; transform: translate(-50%, 0); }

.sp-empty { padding: 24px; text-align: center; color: var(--sp-muted); }

@media (max-width: 900px) {
  .sp-app { grid-template-columns: minmax(0, 1fr); }
  .sp-sidebar {
    position: fixed;
    z-index: 50;
    top: 0;
    left: 0;
    width: min(320px, 86vw);
    height: 100vh;
    max-height: 100vh;
    border-radius: 0;
    transform: translateX(-102%);
    transition: transform .22s ease;
    padding-bottom: 40px;
  }
  .sp-sidebar.is-open { transform: translateX(0); box-shadow: 0 0 40px rgba(19, 28, 23, .28); }
  .sp-backdrop { display: block; position: fixed; z-index: 45; inset: 0; background: rgba(19, 28, 23, .38); }
  .sp-backdrop.hidden { display: none; }
  .sp-toolbar { grid-template-columns: minmax(0, 1fr); }
  .sp-toolbar-actions { justify-content: flex-start; }
  .sp-main { padding: 12px 12px 48px; }
  .sp-dialog { max-height: calc(100vh - 16px); }
  .sp-dialog-body { max-height: calc(100vh - 150px); }
  .sp-media-grid { grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); }
}

@media (max-width: 420px) {
  body { font-size: 14.5px; }
  .sp-brand-text small { display: none; }
  .sp-l1-title { font-size: 15px; }
  .sp-l3 > summary { grid-template-columns: 40px minmax(0, 1fr); }
  .sp-dialog-small { width: calc(100vw - 16px); }
}