/* 编码收发室 — cobalt signal desk. Shared shell: base.css */
:root {
  --accent: #1f4ed8;
  --accent-dark: #112f7a;
  --accent-soft: #dce8ff;
  --encode-ink: #0d1533;
  --encode-ink-soft: #162148;
  --encode-blue: #2449b8;
  --encode-cyan: #1cb7b0;
  --encode-lime: #d8f36f;
  --encode-line: #c4d1e9;
  --encode-cream: #f7f5ed;
  --encode-mist: #eef3fb;
}

body {
  background-color: #f1efe6;
  background-image:
    radial-gradient(circle at 91% 2%, rgba(31, 78, 216, .17), transparent 29rem),
    radial-gradient(circle at 1% 57%, rgba(28, 183, 176, .11), transparent 25rem),
    linear-gradient(rgba(16, 23, 53, .042) 1px, transparent 1px),
    linear-gradient(90deg, rgba(16, 23, 53, .042) 1px, transparent 1px);
  background-size: auto, auto, 32px 32px, 32px 32px;
}

::selection { color: var(--encode-ink); background: var(--encode-lime); }
.brand-mark {
  color: var(--encode-ink);
  background: var(--encode-lime);
  border-radius: 10px;
  font-family: var(--font-mono);
  font-size: 21px;
  letter-spacing: 0;
}
.brand-copy strong { color: var(--encode-ink); }
.eyebrow span { color: var(--encode-lime); background: var(--encode-ink); }
.top-nav a::after { background: var(--accent); }

/* Hero */
.encode-hero {
  grid-template-columns: minmax(0, 1.06fr) minmax(340px, .94fr);
  gap: clamp(38px, 7vw, 88px);
  align-items: center;
  padding-block: clamp(54px, 7.5vw, 100px) 72px;
}
.encode-hero .hero-lead { max-width: 610px; }
.encode-hero .hero h1 em { color: var(--accent); }
.encode-hero .hero h1 em::after { background: var(--encode-lime); opacity: .8; }
.encode-hero .hero-facts span {
  border-color: var(--encode-line);
  background: rgba(255, 253, 247, .7);
}

.signal-card {
  position: relative;
  width: min(100%, 448px);
  justify-self: end;
  padding: 19px;
  color: #f1f5ff;
  background: var(--encode-ink);
  border: 2px solid var(--ink);
  border-radius: 22px;
  box-shadow: 12px 12px 0 var(--accent);
  transform: rotate(-1.2deg);
}
.signal-card::before {
  content: "";
  position: absolute;
  inset: 7px;
  border: 1px solid rgba(216, 243, 111, .13);
  border-radius: 16px;
  pointer-events: none;
}
.signal-top,
.signal-foot {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: #8da2d6;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: .1em;
}
.signal-top { padding: 2px 4px 14px; border-bottom: 1px dashed rgba(196, 209, 233, .2); }
.signal-live { display: inline-flex; align-items: center; gap: 8px; color: #dce6ff; }
.signal-live i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--encode-cyan);
  box-shadow: 0 0 0 4px rgba(28, 183, 176, .17);
}
.signal-top b {
  padding: 4px 7px;
  color: var(--encode-ink);
  background: var(--encode-lime);
  border-radius: 3px;
  font-size: 8px;
  letter-spacing: .09em;
}
.signal-body { position: relative; z-index: 1; padding: 18px 3px 20px; }
.signal-label {
  margin: 0 0 9px;
  color: #869bce;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: .13em;
}
.signal-source {
  margin: 0;
  color: #ffffff;
  font-family: var(--font-display);
  font-size: clamp(22px, 2.8vw, 29px);
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1.3;
}
.signal-source span { font-family: var(--font-sans); font-size: .85em; }
.signal-arrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 13px 0 12px;
  color: var(--encode-cyan);
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: .08em;
}
.signal-arrow span {
  position: relative;
  flex: 0 1 116px;
  height: 1px;
  background: linear-gradient(90deg, rgba(28, 183, 176, .18), var(--encode-cyan));
}
.signal-arrow span::after {
  content: "";
  position: absolute;
  top: -3px;
  right: 0;
  width: 6px;
  height: 6px;
  border-top: 1px solid var(--encode-cyan);
  border-right: 1px solid var(--encode-cyan);
  transform: rotate(45deg);
}
.signal-arrow small { font-size: 8px; }
.signal-code {
  margin: 0;
  padding: 12px 13px;
  color: var(--encode-lime);
  background: rgba(255, 255, 255, .055);
  border: 1px solid rgba(196, 209, 233, .14);
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: clamp(12px, 1.5vw, 15px);
  letter-spacing: .015em;
  line-height: 1.65;
  overflow-wrap: anywhere;
}
.signal-rule { margin: 17px 0 7px; border-top: 1px dashed rgba(196, 209, 233, .18); }
.signal-row {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr) 25px;
  gap: 9px;
  align-items: center;
  min-height: 31px;
  font-family: var(--font-mono);
  font-size: 9px;
}
.signal-row > span { color: #7e92c4; letter-spacing: .05em; }
.signal-row code { color: #b9caf3; font-size: 10px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.signal-row b { color: var(--encode-cyan); font-size: 8px; font-weight: 600; }
.signal-foot { padding: 13px 4px 2px; border-top: 1px dashed rgba(196, 209, 233, .2); font-size: 8px; }
.signal-stamp {
  position: absolute;
  z-index: 2;
  right: -25px;
  bottom: 47px;
  display: grid;
  place-items: center;
  width: 73px;
  height: 73px;
  color: var(--encode-ink);
  background: var(--encode-lime);
  border: 2px solid var(--ink);
  border-radius: 50%;
  box-shadow: 4px 4px 0 var(--ink);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  line-height: 1.3;
  text-align: center;
  transform: rotate(8deg);
}

/* Workbench */
.encode-tool {
  grid-template-columns: minmax(0, 1.1fr) minmax(350px, .9fr);
  gap: 28px;
  align-items: start;
  scroll-margin-top: 26px;
}
.encode-card {
  background: rgba(255, 253, 247, .97);
  border-radius: 20px;
}
.encode-card .status-pill { background: #edf3ff; border-color: var(--encode-line); }
.encode-card .status-pill.is-ok { color: #fff; background: var(--green); border-color: var(--green); }
.encode-card .status-pill.is-error { color: #fff; background: #b43825; border-color: #b43825; }

.encode-tabs {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 4px;
  width: 100%;
  margin: 25px 0 20px;
  padding: 5px;
  background: #e9eef8;
  border-color: var(--encode-line);
  border-radius: 12px;
}
.encode-tabs .mode-tab {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 3px;
  min-height: 58px;
  padding: 10px 12px;
  color: #43506c;
  border-radius: 8px;
  text-align: left;
}
.encode-tabs .mode-tab > span { font-size: 13px; font-weight: 750; line-height: 1.2; }
.encode-tabs .mode-tab small { color: #7b87a0; font-size: 9.5px; line-height: 1.3; }
.encode-tabs .mode-tab.is-active {
  color: #fff;
  background: var(--encode-ink);
  box-shadow: 2px 2px 0 var(--accent);
}
.encode-tabs .mode-tab.is-active small { color: #adc0eb; }
.encode-tabs .lock-dot {
  position: absolute;
  top: 8px;
  right: 8px;
  padding: 1px 4px;
  color: var(--encode-ink);
  background: var(--encode-lime);
  font-size: 8px;
}
body.is-premium .encode-tabs .lock-dot { display: none; }

.action-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 16px;
}
.action-switch {
  display: inline-flex;
  gap: 3px;
  padding: 4px;
  background: var(--encode-mist);
  border: 1px solid var(--encode-line);
  border-radius: 9px;
}
.action-option {
  min-height: 40px;
  padding: 7px 20px;
  color: #53617c;
  background: transparent;
  border: 0;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 650;
  cursor: pointer;
}
.action-option.is-active {
  color: #fff;
  background: var(--encode-blue);
  box-shadow: 2px 2px 0 var(--encode-ink);
}
.mode-option {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0;
  color: var(--muted);
  font-size: 11.5px;
}
.mode-option > label { white-space: nowrap; }
.mode-option select {
  width: auto;
  min-width: 190px;
  min-height: 40px;
  padding: 7px 34px 7px 11px;
  font-size: 11.5px;
}
.mode-option.check-row { min-height: 40px; padding: 0 2px; }

.editor-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 7px 11px;
  color: #5d6b88;
  background: #edf2fb;
  border: 1.5px solid var(--encode-line);
  border-bottom: 0;
  border-radius: 9px 9px 0 0;
  font-family: var(--font-mono);
  font-size: 9px;
  letter-spacing: .04em;
}
.editor-lang { color: var(--accent-dark); font-weight: 700; }
.encode-editor {
  min-height: 238px;
  height: 238px;
  padding: 16px;
  background: #fffefb;
  border-color: var(--encode-line);
  border-radius: 0 0 10px 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.72;
  resize: vertical;
}
.editor-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 11px;
}
.toolbar-group { display: flex; flex-wrap: wrap; gap: 7px; }
.editor-hint { color: var(--muted); font-size: 10.5px; text-align: right; }

.run-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}
.run-main {
  flex: 1 1 230px;
  min-height: 50px;
  padding-inline: 22px;
  color: #fff;
  background: var(--accent);
  border-color: var(--ink);
  box-shadow: 4px 4px 0 var(--encode-ink);
  font-size: 14px;
}
.run-main:hover:not(:disabled) { background: var(--encode-blue); box-shadow: 5px 5px 0 var(--encode-ink); }
.encode-card .run-icon { font-size: 19px; line-height: 1; }
.encode-card .run-label { font-size: 14px; line-height: 1.2; }
.run-secondary { flex: 0 1 auto; background: #fff; }
.run-row .button:disabled { opacity: .45; }

.field-help code { padding: 1px 4px; background: #edf2fb; border-radius: 3px; }
.form-error.is-success { color: var(--green); }
kbd {
  padding: 1px 5px;
  background: #fff;
  border: 1px solid var(--encode-line);
  border-bottom-width: 2px;
  border-radius: 4px;
  font-size: 10px;
}

/* Image mode */
.image-drop {
  position: relative;
  display: grid;
  justify-items: center;
  align-content: center;
  gap: 5px;
  min-height: 190px;
  margin-top: 3px;
  padding: 22px;
  overflow: hidden;
  text-align: center;
  background:
    linear-gradient(135deg, rgba(31, 78, 216, .045) 25%, transparent 25%) 0 0 / 20px 20px,
    #fbfcff;
  border: 2px dashed #9eb1d7;
  border-radius: 13px;
  cursor: pointer;
  transition: border-color .15s, background-color .15s, transform .15s;
}
.image-drop:hover,
.image-drop:focus-within,
.image-drop.is-dragover {
  background-color: #f3f7ff;
  border-color: var(--accent);
}
.image-drop.is-dragover { transform: scale(.995); }
.image-input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  min-height: 0;
  padding: 0;
  opacity: 0;
  cursor: pointer;
}
.image-drop strong { color: var(--encode-ink); font-size: 15px; }
.image-drop > span:not(.drop-icon):not(.drop-tag) { color: var(--muted); font-size: 11.5px; }
.drop-icon {
  display: grid;
  place-items: center;
  width: 47px;
  height: 47px;
  margin-bottom: 3px;
  color: var(--encode-ink);
  background: var(--encode-lime);
  border: 1.5px solid var(--ink);
  border-radius: 50%;
  box-shadow: 3px 3px 0 var(--ink);
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
}
.drop-tag {
  margin-top: 5px;
  padding: 3px 8px;
  color: var(--accent-dark);
  background: var(--accent-soft);
  border-radius: 100px;
  font-size: 9.5px;
}
.image-preview {
  display: grid;
  grid-template-columns: 76px minmax(0, 1fr) auto;
  gap: 13px;
  align-items: center;
  margin-top: 12px;
  padding: 11px;
  background: #f5f8ff;
  border: 1px solid var(--encode-line);
  border-radius: 11px;
}
.image-preview img {
  width: 76px;
  height: 76px;
  object-fit: cover;
  background: #fff;
  border: 1.5px solid var(--ink);
  border-radius: 8px;
}
.image-file { min-width: 0; }
.image-file strong {
  display: block;
  overflow: hidden;
  color: var(--encode-ink);
  font-size: 12.5px;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.image-file span { display: block; margin-top: 3px; color: var(--muted); font-family: var(--font-mono); font-size: 9.5px; }

/* Free strip */
.free-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 8px;
  margin-top: 18px;
}
.free-strip > div {
  padding: 12px 12px 11px;
  background: rgba(255, 253, 247, .7);
  border: 1px solid var(--encode-line);
  border-radius: 9px;
}
.free-strip span { display: block; color: var(--accent); font-family: var(--font-mono); font-size: 8.5px; }
.free-strip strong { display: block; margin-top: 3px; font-size: 12.5px; }
.free-strip small { display: block; margin-top: 1px; color: var(--muted); font-size: 9.5px; line-height: 1.45; }

/* Dark output console */
.encode-result-card {
  position: sticky;
  top: 22px;
  color: #edf3ff;
  background: var(--encode-ink);
  border: 1.5px solid var(--ink);
  border-radius: 20px;
  box-shadow: 7px 7px 0 var(--accent);
}
.encode-result-card .card-heading h2 { color: #f7f9ff; }
.encode-result-card .card-heading p:not(.section-index) { color: #9bacd2; }
.encode-result-card .section-index { color: #8da6df; }
.encode-result-card .status-pill {
  color: #cad7f4;
  background: #1a2752;
  border-color: #364a7d;
}
.encode-result-card .status-pill.is-ok { color: var(--encode-ink); background: var(--encode-lime); border-color: var(--encode-lime); }
.encode-result-card .status-pill.is-error { color: #fff; background: #c44732; border-color: #c44732; }

.result-stage {
  margin-top: 20px;
  padding: 10px;
  background: rgba(255, 255, 255, .035);
  border: 1px solid #2f4172;
  border-radius: 12px;
}
.result-topline {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 1px 3px 9px;
  color: #8fa5d8;
  font-family: var(--font-mono);
  font-size: 8.5px;
  letter-spacing: .08em;
}
.result-live { display: inline-flex; align-items: center; gap: 7px; color: #b7c7ea; }
.result-live i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--encode-lime);
  box-shadow: 0 0 0 3px rgba(216, 243, 111, .13);
}
#outputKind {
  max-width: 55%;
  overflow: hidden;
  color: var(--encode-cyan);
  text-overflow: ellipsis;
  white-space: nowrap;
}

#result.encode-output {
  min-height: 230px;
  max-height: 390px;
  margin-top: 0;
  padding: 15px;
  overflow: auto;
  color: #eaf0ff;
  background: #080e24;
  border: 1px dashed #3b4f83;
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.75;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  word-break: break-word;
}
#result.encode-output:empty::before {
  content: "等待生成结果…";
  color: #7287b9;
  font-size: 12px;
}
#result.encode-output.is-stale { opacity: .68; }
#result.encode-output::-webkit-scrollbar { width: 10px; height: 10px; }
#result.encode-output::-webkit-scrollbar-thumb { background: #31446f; border-radius: 10px; }
#result.encode-output::-webkit-scrollbar-track { background: transparent; }

.result-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
}
.encode-result-card .copy-button {
  min-height: 44px;
  padding: 9px 16px;
  color: var(--encode-ink);
  background: var(--encode-lime);
  border: 1px solid var(--ink);
  border-radius: 8px;
  font-size: 12px;
  font-weight: 750;
}
.encode-result-card .copy-button:hover:not(:disabled) {
  transform: translate(-1px, -1px);
  box-shadow: 3px 3px 0 #526398;
}
.encode-result-card .copy-button:disabled { opacity: .35; cursor: not-allowed; }
.encode-result-card .copy-button.is-copied { color: var(--encode-ink); background: #a8e6c0; border-color: #a8e6c0; }
.encode-result-card .text-button { color: #aabbdf; }
.encode-result-card .text-button:disabled { opacity: .38; cursor: not-allowed; }

.result-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 7px;
  margin-top: 16px;
}
.result-metrics > div {
  min-width: 0;
  padding: 9px 10px;
  background: rgba(255, 255, 255, .04);
  border: 1px solid #2b3c69;
  border-radius: 8px;
}
.result-metrics small {
  display: block;
  color: #7f94c3;
  font-family: var(--font-mono);
  font-size: 8px;
  letter-spacing: .08em;
}
.result-metrics strong {
  display: block;
  margin-top: 2px;
  overflow: hidden;
  color: #dfe8ff;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 600;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.result-meta { color: #92a4cd; font-size: 10.5px; }
.encode-result-card .lock-note {
  margin: 16px 0 0;
  padding: 10px 12px;
  color: #ffd4c8;
  background: rgba(196, 71, 50, .16);
  border-left: 3px solid #ff7a5e;
  border-radius: 0 7px 7px 0;
  font-size: 10.5px;
}
.privacy-note {
  display: flex;
  align-items: center;
  gap: 7px;
  margin: 15px 0 0;
  color: #7c90bd;
  font-size: 9.5px;
}
.privacy-note span { color: var(--encode-cyan); font-size: 7px; }

/* Guide, FAQ, unlock */
.how-to-grid li { border-color: var(--encode-ink); }
.how-to-grid li > span { color: var(--encode-ink); background: var(--encode-lime); }
.faq-list summary::after { color: var(--accent); }
.premium-map { box-shadow: 5px 5px 0 var(--accent); }
.premium-map li span { color: var(--accent); }
.guide-heading { border-bottom-color: #c9d2e2; }

.site-footer { background: #0a1028; }
.footer-mark { color: var(--encode-ink); background: var(--encode-lime); }
.footer-links a:hover,
#toolLinks a:hover { color: var(--encode-lime); }

@media (max-width: 980px) {
  .encode-hero { grid-template-columns: 1fr; gap: 40px; }
  .signal-card { justify-self: start; width: min(100%, 520px); transform: rotate(-.6deg); }
}

@media (max-width: 900px) {
  .encode-tool { grid-template-columns: 1fr; }
  .encode-result-card { position: static; }
}

@media (max-width: 700px) {
  .encode-hero { gap: 34px; padding-bottom: 48px; }
  .signal-card { padding: 16px; box-shadow: 8px 8px 0 var(--accent); }
  .signal-stamp { right: -7px; bottom: 38px; width: 59px; height: 59px; font-size: 8.5px; }
  .signal-row { grid-template-columns: 57px minmax(0, 1fr) 23px; }
  .encode-tabs { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .encode-tabs .mode-tab { min-height: 53px; }
  .action-row { align-items: flex-start; }
  .mode-option { width: 100%; justify-content: space-between; }
  .mode-option select { flex: 1 1 auto; min-width: 0; }
  .mode-option.check-row { justify-content: flex-start; }
  .encode-editor { min-height: 260px; height: 260px; }
  .run-main { flex: 1 1 100%; }
  .run-secondary { flex: 1 1 100%; }
  .free-strip { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  #result.encode-output { min-height: 220px; max-height: 340px; }
  .encode-result-card { padding: 20px; box-shadow: 5px 5px 0 var(--accent); }
}

@media (max-width: 400px) {
  .signal-card { width: 100%; padding: 14px; box-shadow: 6px 6px 0 var(--accent); }
  .signal-stamp { display: none; }
  .signal-source { font-size: 21px; }
  .signal-code { font-size: 11.5px; }
  .encode-card, .encode-result-card { padding: 17px; }
  .encode-tabs .mode-tab { padding: 9px 10px; }
  .encode-tabs .mode-tab > span { font-size: 12px; }
  .encode-tabs .mode-tab small { font-size: 8.5px; }
  .action-switch { width: 100%; }
  .action-option { flex: 1; padding-inline: 10px; }
  .encode-editor { min-height: 225px; height: 225px; padding: 13px; font-size: 12px; }
  .editor-hint { text-align: left; }
  .free-strip > div { padding: 10px; }
  .image-drop { min-height: 170px; padding: 17px; }
  .image-preview { grid-template-columns: 62px minmax(0, 1fr); }
  .image-preview img { width: 62px; height: 62px; }
  .image-preview .text-button { grid-column: 1 / -1; justify-self: start; }
  #result.encode-output { min-height: 205px; max-height: 300px; padding: 13px; font-size: 11.5px; }
  .result-metrics { gap: 5px; }
  .result-metrics > div { padding: 8px 7px; }
  .result-metrics strong { font-size: 10.5px; }
  .result-metrics small { font-size: 7.5px; }
}

@media (prefers-reduced-motion: no-preference) {
  .signal-live i { animation: encode-pulse 3.4s ease-in-out infinite; }
  .signal-card { animation: encode-settle 5.6s ease-in-out infinite; }
  @keyframes encode-pulse {
    0%, 100% { box-shadow: 0 0 0 4px rgba(28, 183, 176, .17); }
    50% { box-shadow: 0 0 0 7px rgba(28, 183, 176, .05); }
  }
  @keyframes encode-settle {
    0%, 72%, 100% { transform: rotate(-1.2deg) translateY(0); }
    81% { transform: rotate(-.7deg) translateY(-3px); }
  }
}