/* The Epub AI Assistant — 深青色品牌主题。
   与插件统一：#0F766E、独立书本图标、无衬线品牌与标题。
   正文保留书籍阅读字体；深色模式使用同族青色。 */

:root {
  color-scheme: light;

  /* ---- 纸面 ---- */
  --bg: #f3f7f6;
  --bg-2: #fbfdfc;
  --surface: #ffffff;
  --surface-2: #f6faf8;
  --surface-3: #eef8f5;
  --inset: rgba(15, 118, 110, .04);
  --scrim: rgba(243, 247, 246, .9);
  --code-bg: #f3f7f6;

  /* ---- 线 ---- */
  --line: #e5e7eb;
  --line-soft: #f3f4f6;
  --line-strong: #d1d5db;
  --hairline: rgba(0, 0, 0, .05);

  /* ---- 字 ---- */
  --text: #163b37;
  --text-2: #173d38;
  --text-3: #4b5563;
  --muted: #6b7280;
  --muted-2: #9ca3af;

  /* ---- 深青色：品牌主色 ---- */
  --brand: #0f766e;            /* 主按钮、浅底上的品牌字 */
  --brand-band: #0f766e;       /* 页头带、小按钮 */
  --brand-ink: #ffffff;
  --accent: #0f766e;         /* 组件里统一用 --accent，等价于插件主色 */
  --accent-ink: #ffffff;
  --accent-soft: rgba(15, 118, 110, .06);
  --accent-soft-2: rgba(15, 118, 110, .11);
  --accent-line: rgba(15, 118, 110, .15);
  --accent-glow: rgba(15, 118, 110, .22);

  /* ---- 标记色（划线/高亮）---- */
  --mark: rgba(15, 118, 110, .12);
  --mark-line: rgba(15, 118, 110, .28);
  --warm: #0f766e;

  --shadow-1: 0 1px 2px rgba(22, 59, 55, .06), 0 12px 28px -20px rgba(22, 59, 55, .38);
  --shadow-2: 0 1px 2px rgba(22, 59, 55, .05), 0 26px 60px -30px rgba(22, 59, 55, .45);
  --shadow-band: 0 1px 3px rgba(15, 118, 110, .28);
  --traffic: rgba(255, 255, 255, .45);

  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --serif: ui-serif, "Iowan Old Style", "Charter", Georgia, "Songti SC", "Noto Serif SC", "Source Han Serif SC", "Times New Roman", serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

  --wrap: 1120px;
  --radius: 16px;
  --radius-btn: 12px;
  --radius-field: 8px;
  --radius-card: 16px;
  --radius-big: 24px;
}

[data-theme="dark"] {
  color-scheme: dark;

  /* 深色版采用青黑底色，强调色提亮以便阅读 */
  --bg: #101e1c;
  --bg-2: #152824;
  --surface: #19302b;
  --surface-2: #1c352f;
  --surface-3: #214038;
  --inset: rgba(255, 255, 255, .045);
  --scrim: rgba(16, 30, 28, .88);
  --code-bg: #142620;

  --line: rgba(255, 255, 255, .1);
  --line-soft: rgba(255, 255, 255, .06);
  --line-strong: rgba(255, 255, 255, .2);
  --hairline: rgba(255, 255, 255, .07);

  --text: #edf7f2;
  --text-2: #d5e9df;
  --text-3: #b3ccc1;
  --muted: #9fbcb0;
  --muted-2: #7d9a8e;

  --brand: #0f766e;
  --brand-band: #115e59;
  --brand-ink: #ffffff;
  --accent: #72d4be;
  --accent-ink: #102a24;
  --accent-soft: rgba(15, 118, 110, .14);
  --accent-soft-2: rgba(15, 118, 110, .22);
  --accent-line: rgba(15, 118, 110, .32);
  --accent-glow: rgba(15, 118, 110, .28);

  --mark: rgba(15, 118, 110, .2);
  --mark-line: rgba(15, 118, 110, .4);
  --warm: #99e0ce;

  --shadow-1: 0 1px 2px rgba(0, 0, 0, .5), 0 16px 40px -24px rgba(0, 0, 0, .9);
  --shadow-2: 0 1px 2px rgba(0, 0, 0, .55), 0 28px 70px -32px rgba(0, 0, 0, .95);
  --shadow-band: 0 1px 3px rgba(0, 0, 0, .5);
  --traffic: rgba(255, 255, 255, .3);
}

/* ------------------------------------------------------------
   base
   ------------------------------------------------------------ */

* { box-sizing: border-box; }

/* the hidden attribute must win over the display values below */
[hidden] { display: none !important; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 16px/1.65 var(--sans);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3 { margin: 0; font-weight: 600; line-height: 1.22; letter-spacing: -.015em; }
h1, h2 { font-family: var(--sans); font-weight: 600; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
summary { cursor: pointer; }
img { border: 0; }
code, pre, .mono { font-family: var(--mono); font-size: .93em; }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 6px;
}

.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 24px;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 100;
  padding: 10px 16px;
  background: var(--accent);
  color: var(--accent-ink);
  border-radius: 0 0 10px 0;
}
.skip:focus { left: 0; }

/* full-page texture: one warm wash, one faint rule grid */
.bg { position: fixed; inset: 0; pointer-events: none; z-index: 0; }
.bg-wash {
  position: absolute; inset: -20% -10% auto -10%; height: 70vh;
  background:
    radial-gradient(60% 60% at 18% 12%, rgba(15, 118, 110, .06), transparent 70%),
    radial-gradient(50% 50% at 84% 6%, rgba(15, 118, 110, .05), transparent 72%);
  opacity: 1;
  filter: blur(14px);
}
.bg-rules {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(255, 250, 245, .9), rgba(243, 247, 246, 0) 60%);
  opacity: .7;
}
[data-theme="dark"] .bg-wash { opacity: .55; }

main, header.nav, footer.foot { position: relative; z-index: 1; }

/* ------------------------------------------------------------
   nav
   ------------------------------------------------------------ */

.nav {
  position: sticky;
  top: 0;
  z-index: 30;
  background: var(--brand-band);
  box-shadow: var(--shadow-band);
  transition: box-shadow .2s ease;
}
.nav.is-stuck {
  box-shadow: 0 2px 14px rgba(15, 118, 110, .34);
}
.nav-inner {
  display: flex;
  align-items: center;
  gap: 18px;
  min-height: 68px;
}

.brand { display: inline-flex; align-items: center; gap: 10px; min-width: 0; }
.brand-mark {
  display: grid; place-items: center;
  width: 34px; height: 34px;
}
.brand-mark img { display: block; border-radius: 8px; box-shadow: 0 1px 2px rgba(0, 0, 0, .18); }
.brand-name {
  font-family: var(--sans);
  font-size: 17px;
  font-weight: 700;
  color: #fff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.brand-tag {
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, .28);
  background: rgba(255, 255, 255, .14);
  color: rgba(255, 255, 255, .92);
  font: 500 11px/1.5 var(--mono);
}

.nav-links {
  display: flex;
  gap: 4px;
  margin-left: auto;
}
.nav-links a {
  padding: 8px 12px;
  border-radius: 8px;
  color: rgba(255, 255, 255, .84);
  font-size: 14px;
  white-space: nowrap;
  transition: color .16s ease, background .16s ease;
}
.nav-links a:hover { color: #fff; background: rgba(255, 255, 255, .16); }
.nav-actions { display: flex; align-items: center; gap: 8px; }
.nav:not(.is-stuck) .nav-links { color: rgba(255, 255, 255, .84); }

/* theme switch */
.theme-switch { padding: 0; border-radius: 999px; }
.ts-track {
  position: relative;
  display: flex; align-items: center;
  width: 54px; height: 30px;
  padding: 3px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .18);
  border: 1px solid rgba(255, 255, 255, .28);
  transition: background .2s ease, border-color .2s ease;
}
.ts-knob {
  position: relative;
  display: grid; place-items: center;
  width: 24px; height: 24px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 3px rgba(0, 0, 0, .25);
  transform: translateX(0);
  transition: transform .26s cubic-bezier(.4, 1.3, .5, 1);
}
[data-theme="dark"] .ts-knob { transform: translateX(24px); }
.ts-icon { width: 14px; height: 14px; }
.ts-icon path { fill: var(--brand-band); }
.ts-moon { display: none; }
[data-theme="dark"] .ts-icon path { fill: var(--brand-band); }
[data-theme="dark"] .ts-sun { display: none; }
[data-theme="dark"] .ts-moon { display: block; }
.ts-marks { display: flex; gap: 3px; margin-left: auto; padding-right: 4px; }
.ts-marks i {
  width: 2px; height: 2px; border-radius: 50%;
  background: rgba(255, 255, 255, .6);
}
[data-theme="dark"] .ts-marks { margin: 0 auto 0 0; padding: 0 0 0 5px; }

.lang-btn, .ghost-btn {
  display: inline-flex; align-items: center; gap: 7px;
  height: 36px;
  padding: 0 14px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, .28);
  background: transparent;
  color: #fff;
  font-size: 14px;
  font-weight: 500;
  white-space: nowrap;
  transition: background .16s ease, border-color .16s ease;
}
.lang-btn:hover, .ghost-btn:hover { background: rgba(255, 255, 255, .16); border-color: rgba(255, 255, 255, .45); }
.lang-btn.switching { animation: pop .32s ease; }
@keyframes pop { 0% { transform: scale(1); } 45% { transform: scale(.92); } 100% { transform: scale(1); } }

.solid-btn {
  display: inline-flex; align-items: center; gap: 9px;
  height: 48px;
  padding: 0 24px;
  border-radius: var(--radius-btn);
  background: var(--brand);
  color: var(--brand-ink);
  font-size: 16px;
  font-weight: 600;
  white-space: nowrap;
  transition: filter .18s ease, transform .16s ease, box-shadow .2s ease;
}
.solid-btn:hover { filter: brightness(1.12); transform: translateY(-1px); box-shadow: 0 10px 24px -14px rgba(15, 118, 110, .8); }
.solid-btn svg { transition: transform .18s ease; }
.solid-btn:hover svg { transform: translateX(3px); }
.solid-btn.sm { height: 36px; padding: 0 16px; font-size: 14px; border-radius: 8px; background: #fff; color: var(--brand); }

.line-btn {
  display: inline-flex; align-items: center;
  height: 48px;
  padding: 0 24px;
  border-radius: var(--radius-btn);
  border: 1px solid var(--line-strong);
  background: var(--surface);
  color: var(--text);
  font-size: 16px;
  font-weight: 600;
  white-space: nowrap;
  transition: background .16s ease, border-color .16s ease, transform .16s ease;
}
.line-btn:hover { background: var(--surface-2); border-color: var(--muted-2); transform: translateY(-1px); }

/* ------------------------------------------------------------
   hero
   ------------------------------------------------------------ */

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(0, .85fr);
  gap: 54px;
  align-items: center;
  padding: 74px 24px 30px;
}

.pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--accent-line);
  background: transparent;
  color: var(--accent);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: .01em;
}
.pill .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--brand-band);
  animation: breathe 2.6s ease-in-out infinite;
}
@keyframes breathe { 0%, 100% { opacity: 1; } 50% { opacity: .45; } }

.hero h1 {
  margin: 20px 0 0;
  font-size: clamp(34px, 5.2vw, 58px);
  line-height: 1.14;
}
.hero .mark {
  position: relative;
  white-space: nowrap;
  color: var(--text);
}
/* 荧光笔：把强调色压在文字背后，而不是画一条下划线 */
.hero .mark::after {
  content: "";
  position: absolute;
  left: -.08em; right: -.08em; top: .1em; bottom: .06em;
  background: var(--mark);
  border-radius: 5px;
  z-index: -1;
}
.lede {
  max-width: 34em;
  margin-top: 22px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.75;
}
.lede strong { color: var(--text); font-weight: 600; }

.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.cta-row.center { justify-content: center; }

.hero-facts {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin-top: 34px;
  border-top: 0;
}
.hero-facts li {
  padding: 16px 18px;
  display: flex;
  flex-direction: column-reverse;
  gap: 4px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-card);
  background: var(--surface);
  box-shadow: var(--shadow-1);
}
.hero-facts b {
  font-family: var(--sans);
  font-size: 24px;
  font-weight: 700;
  color: var(--text-2);
  letter-spacing: -.01em;
}
.hero-facts span { color: var(--muted); font-size: 14px; line-height: 1.45; }

.hero-side { position: relative; }
.hero-card {
  border-radius: var(--radius-card);
  border: 1px solid var(--hairline);
  background: var(--surface);
  box-shadow: var(--shadow-2);
  overflow: hidden;
}
.hc-head {
  display: flex; align-items: center; gap: 9px;
  padding: 16px 18px 14px;
  border-bottom: 1px solid var(--line-soft);
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
}
.hc-badge {
  margin-left: auto;
  color: var(--muted-2);
  font: 400 13px/1.6 var(--sans);
  font-weight: 400;
}
.hc-body { padding: 14px 18px 4px; }
.hc-row {
  display: flex; flex-direction: column; gap: 6px;
  padding: 0 0 12px;
  border-bottom: 0;
  font-size: 14px;
}
.hc-row:last-of-type { border-bottom: 0; }
.hc-key { flex: none; color: var(--muted); font-size: 14px; }
.hc-val {
  display: block;
  min-width: 0;
  padding: 8px 12px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-field);
  background: var(--surface);
  color: var(--text);
  word-break: break-all;
}
.hc-val.mono { font-size: 12.5px; }
.hc-split {
  display: flex; align-items: center; gap: 10px;
  margin-top: 2px;
  padding: 14px 0 16px;
  border-top: 1px solid var(--line-soft);
}
.hc-note { color: var(--muted); font-size: 12px; }
.hc-ok {
  margin-left: auto;
  display: inline-flex; align-items: center; gap: 5px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(16, 122, 62, .08);
  color: #107a3e;
  font-size: 12px;
}
.hc-ok::before {
  content: "";
  width: 5px; height: 5px; border-radius: 50%;
  background: #107a3e;
}
.hero-side-note {
  margin-top: 14px;
  color: var(--muted-2);
  font-size: 12.5px;
  line-height: 1.6;
}

/* ------------------------------------------------------------
   section shells
   ------------------------------------------------------------ */

.section { padding: 76px 24px; }
.section-head { max-width: 46em; margin-bottom: 40px; }
.kicker {
  display: inline-flex; align-items: center; gap: 8px;
  margin-bottom: 14px;
  color: var(--brand);
  font: 600 13px/1 var(--sans);
  letter-spacing: .16em;
  text-transform: uppercase;
}
.kicker::before {
  content: "";
  width: 20px; height: 2px;
  background: var(--brand-band);
}
.section-head h2 { font-size: clamp(26px, 3.4vw, 38px); }
.section-head .sub {
  margin-top: 16px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.75;
}

/* ------------------------------------------------------------
   demo stage
   ------------------------------------------------------------ */

.stage-section { padding: 60px 0 20px; }
.stage-section .section-head { padding: 0 24px; }

.stage { position: relative; }
.stage-glow {
  pointer-events: none;
  position: absolute;
  inset: 8% 4% -6% 4%;
  background: radial-gradient(50% 50% at 50% 40%, var(--accent-glow), transparent 70%);
  filter: blur(46px);
  opacity: .5;
  z-index: 0;
}

.window {
  position: relative;
  z-index: 1;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: var(--surface-2);
  box-shadow: var(--shadow-2);
  overflow: hidden;
}

.chrome {
  display: flex; align-items: center; gap: 14px;
  padding: 10px 14px;
  border-bottom: 0;
  background: var(--brand-band);
}
.lights { display: flex; gap: 6px; }
.lights i {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--traffic);
}
.omnibox {
  display: flex; align-items: center; gap: 8px;
  flex: 1;
  min-width: 0;
  height: 30px;
  padding: 0 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .16);
  border: 1px solid rgba(255, 255, 255, .22);
  color: rgba(255, 255, 255, .92);
  font-size: 12.5px;
}
.omnibox .lock { display: inline-flex; color: rgba(255, 255, 255, .85); }
.omni-url {
  font-family: var(--mono);
  font-size: 12px;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.chrome-actions { display: flex; align-items: center; gap: 8px; }
.ext-chip {
  position: relative;
  display: grid; place-items: center;
  width: 30px; height: 30px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, .3);
  background: rgba(255, 255, 255, .16);
}
.ext-dot {
  position: absolute; right: -2px; top: -2px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--surface);
}

.window-body { display: flex; align-items: stretch; min-height: 520px; }

/* ---------------- reading pane ---------------- */

.page {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  background:
    linear-gradient(var(--surface-2), var(--surface-2));
}
.page-bar {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 18px;
  border-bottom: 1px solid var(--line-soft);
}
.page-tool, .page-tool-static {
  display: inline-flex; align-items: center; gap: 6px;
  height: 26px;
  padding: 0 10px;
  border-radius: 7px;
  border: 1px solid var(--line-soft);
  color: var(--muted);
  font-size: 12px;
}
.page-tool-static { font-family: var(--mono); padding: 0 8px; }
.page-spacer { flex: 1; }
.dual-pill {
  display: inline-flex; align-items: center; gap: 7px;
  height: 26px;
  padding: 0 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--muted-2);
  font-size: 12px;
  transition: color .2s ease, border-color .2s ease, background .2s ease;
}
.dp-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--muted-2);
  transition: background .2s ease, box-shadow .2s ease;
}
.dual-pill.is-on {
  color: var(--accent);
  border-color: var(--accent-line);
  background: var(--accent-soft);
}
.dual-pill.is-on .dp-dot { background: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }

.page-scroll { flex: 1; overflow: hidden auto; }
.page-scroll::-webkit-scrollbar { width: 8px; }
.page-scroll::-webkit-scrollbar-thumb { background: var(--line); border-radius: 8px; }

.page-content {
  max-width: 640px;
  margin: 0 auto;
  padding: 34px 34px 30px;
  font-family: var(--serif);
}
.chapter-kicker {
  color: var(--accent);
  font: 600 11.5px/1 var(--sans);
  letter-spacing: .18em;
  text-transform: uppercase;
}
.chapter-title {
  margin: 12px 0 0;
  font-family: var(--sans);
  font-size: clamp(23px, 2.4vw, 31px);
  font-weight: 600;
  letter-spacing: -.01em;
}
.chapter-meta {
  margin-top: 10px;
  color: var(--muted-2);
  font-family: var(--sans);
  font-size: 12px;
}

.para {
  position: relative;
  margin-top: 24px;
  color: var(--text-2);
  font-size: 16.5px;
  line-height: 1.85;
  text-wrap: pretty;
}
.trans {
  display: block;
  margin-top: 10px;
  padding-left: 12px;
  border-left: 3px solid var(--accent);
  color: var(--text-3);
  font-size: 15px;
  line-height: 1.8;
  opacity: 0;
  transform: translateY(-3px);
  transition: opacity .3s ease, transform .3s ease;
}
.trans.is-shown { opacity: 1; transform: none; }
/* blinking caret while a stream is still writing */
.is-typing::after {
  content: "";
  display: inline-block;
  width: 2px; height: 1em;
  margin-left: 2px;
  vertical-align: -2px;
  background: var(--accent);
  animation: blink .9s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.sel { transition: background .25s ease, box-shadow .25s ease; }
.sel.is-active {
  background: var(--mark);
  border-radius: 3px;
  box-shadow: 0 2px 0 var(--brand-band);
}

.word-pop {
  position: absolute;
  left: 13%;
  bottom: -12px;
  z-index: 3;
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 210px;
  max-width: 260px;
  padding: 12px 14px;
  border-radius: var(--radius-card);
  border: 1px solid var(--hairline);
  background: var(--surface);
  box-shadow: var(--shadow-2);
  font-family: var(--sans);
  opacity: 0;
  transform: translateY(6px) scale(.97);
  transition: opacity .24s ease, transform .24s cubic-bezier(.3, 1.4, .5, 1);
}
.word-pop.is-shown { opacity: 1; transform: none; }
.word-pop::before {
  content: "";
  position: absolute;
  top: -6px; left: 18px;
  width: 10px; height: 10px;
  background: var(--surface);
  border-left: 1px solid var(--hairline);
  border-top: 1px solid var(--hairline);
  transform: rotate(45deg);
}
.wp-word { font-size: 14.5px; font-weight: 600; color: var(--text); }
.wp-ipa { color: var(--muted-2); font: 400 11.5px/1.4 var(--mono); }
.wp-def { margin-top: 4px; color: var(--text-3); font-size: 13px; line-height: 1.5; }
.wp-src { margin-top: 5px; color: var(--muted-2); font-size: 11px; }

.page-foot {
  margin-top: 30px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--sans);
  font-size: 11.5px;
}

/* ---------------- side panel ---------------- */

.panel {
  flex: 0 0 348px;
  display: flex;
  flex-direction: column;
  border-left: 1px solid var(--line);
  background: var(--bg-2);
}
.panel-head {
  display: flex; align-items: center; gap: 10px;
  padding: 13px 14px;
  border-bottom: 0;
  background: var(--brand-band);
}
.panel-brand {
  display: inline-flex; align-items: center; gap: 8px;
  color: #fff;
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 700;
}
.panel-state {
  margin-left: auto;
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .18);
  color: rgba(255, 255, 255, .95);
  font-size: 11.5px;
  white-space: nowrap;
}
.ps-dot { width: 5px; height: 5px; border-radius: 50%; background: #fff; }
.panel-state.is-busy { color: #fff; background: rgba(255, 255, 255, .26); }
.panel-state.is-busy .ps-dot { animation: breathe 1.1s ease-in-out infinite; }
.panel-state.is-done { color: #fff; background: rgba(255, 255, 255, .26); }

.panel-tabs {
  display: flex;
  gap: 6px;
  padding: 0 14px 13px;
  border-bottom: 0;
  background: var(--brand-band);
}
.ptab {
  flex: 1;
  padding: 8px 6px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, .28);
  color: rgba(255, 255, 255, .92);
  font-size: 13px;
  transition: background .16s ease, border-color .16s ease, color .16s ease;
}
.ptab:hover { background: rgba(255, 255, 255, .16); color: #fff; }
.ptab[aria-selected="true"] {
  background: #fff;
  border-color: #fff;
  color: var(--brand);
  font-weight: 600;
}

.panel-body {
  flex: 1;
  padding: 14px;
  overflow: hidden auto;
  min-height: 0;
  background: var(--bg-2);
}
.panel-body::-webkit-scrollbar { width: 8px; }
.panel-body::-webkit-scrollbar-thumb { background: var(--line); border-radius: 8px; }

.scene { display: flex; flex-direction: column; gap: 12px; }
.scene[hidden] { display: none; }

/* scene: library */
.drop {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 22px 14px;
  border-radius: var(--radius-card);
  border: 2px dashed var(--line-strong);
  background: var(--surface);
  color: var(--muted);
  text-align: center;
  transition: border-color .2s ease, background .2s ease;
}
.drop.is-busy { border-color: var(--accent-line); background: var(--accent-soft); }
.drop.is-done { border-style: solid; border-color: var(--accent-line); }
.drop-title { font-size: 14px; color: var(--text); font-weight: 600; }
.drop-sub { font-size: 11.5px; color: var(--muted-2); }
.drop-bar {
  display: block;
  width: 100%;
  height: 3px;
  margin-top: 10px;
  border-radius: 999px;
  background: var(--line);
  overflow: hidden;
}
.drop-bar i {
  display: block;
  width: 0;
  height: 100%;
  border-radius: 999px;
  background: var(--brand-band);
  transition: width .18s linear;
}
.drop-msg { margin-top: 4px; color: var(--brand); font-size: 12px; }
.lib-head {
  display: flex; align-items: center; gap: 8px;
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
}
.lib-count {
  padding: 1px 7px;
  border-radius: 999px;
  background: var(--inset);
  font-family: var(--mono);
  letter-spacing: 0;
}
.shelf { display: flex; flex-direction: column; gap: 8px; }
.book {
  display: flex; align-items: center; gap: 11px;
  padding: 10px;
  border-radius: var(--radius-field);
  border: 1px solid var(--hairline);
  background: var(--surface);
  transition: border-color .2s ease, transform .24s ease, opacity .24s ease;
}
.book.is-new {
  border-color: var(--accent-line);
  animation: slide-in .42s cubic-bezier(.2, 1.3, .5, 1);
}
@keyframes slide-in {
  from { opacity: 0; transform: translateY(-8px) scale(.97); }
  to { opacity: 1; transform: none; }
}
.cover {
  flex: 0 0 30px;
  display: grid; place-items: center;
  width: 30px; height: 40px;
  border-radius: 4px 6px 6px 4px;
  color: #fff;
  font: 600 10px/1 var(--sans);
  letter-spacing: .04em;
  box-shadow: inset -3px 0 0 rgba(0, 0, 0, .18);
}
.cover.c1 { background: linear-gradient(135deg, #0f766e, #115e59); }
.cover.c2 { background: linear-gradient(135deg, #0f766e, #134e4a); }
.cover.c3 { background: linear-gradient(135deg, #6b7280, #4b5563); }
.cover.c4 { background: linear-gradient(135deg, #b45309, #8a3f06); }
.book-meta { min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.book-meta b {
  font-size: 12.5px;
  font-weight: 600;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.book-sub { color: var(--muted-2); font-size: 11px; }
.scene-note {
  padding: 10px 12px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-field);
  background: var(--surface);
  color: var(--text-3);
  font-size: 12.5px;
  line-height: 1.6;
}

/* scene: reader */
.read-actions { display: flex; flex-wrap: wrap; gap: 6px; }
.mini-btn {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 8px 14px;
  border-radius: var(--radius-field);
  border: 0;
  background: var(--brand-band);
  color: #fff;
  font-size: 14px;
  font-weight: 500;
  transition: filter .16s ease, transform .16s ease, background .16s ease, color .16s ease;
}
.mini-btn:hover { filter: brightness(1.1); transform: translateY(-1px); }
.mini-btn.ghost {
  border: 1px solid var(--line-strong);
  background: var(--surface);
  color: var(--text);
}
.mini-btn.is-on { background: var(--brand); color: #fff; border-color: var(--brand); }
.hint {
  padding: 10px 12px;
  border: 1px solid var(--hairline);
  border-radius: var(--radius-field);
  background: var(--surface);
  color: var(--text-3);
  font-size: 12.5px;
  line-height: 1.6;
}

.stream {
  border-radius: var(--radius-card);
  border: 1px solid var(--hairline);
  background: var(--surface);
  overflow: hidden;
  box-shadow: var(--shadow-1);
}
.stream-head {
  display: flex; align-items: center; gap: 8px;
  padding: 9px 12px;
  border-bottom: 1px solid var(--line-soft);
}
.stream-title { font-size: 12.5px; font-weight: 600; }
.stream-badge {
  margin-left: auto;
  padding: 3px 9px;
  border-radius: 999px;
  background: var(--accent-soft-2);
  color: var(--brand);
  font: 500 11px/1.6 var(--mono);
}
.stream-badge.is-done { background: var(--line-soft); color: var(--muted); }
.stream-meta {
  padding: 8px 12px 0;
  color: var(--muted-2);
  font-size: 11px;
}
.stream-body { padding: 8px 12px 12px; }
.s-line {
  display: flex; gap: 8px;
  margin-top: 8px;
  color: var(--text-2);
  font-size: 12.5px;
  line-height: 1.65;
  opacity: 0;
  transform: translateY(-3px);
  transition: opacity .28s ease, transform .28s ease;
}
.s-line.is-shown { opacity: 1; transform: none; }
.s-line .bullet {
  flex: 0 0 4px;
  width: 4px; height: 4px;
  margin-top: 8px;
  border-radius: 50%;
  background: var(--brand-band);
}
.s-line.is-streaming .bullet { animation: breathe 1s ease-in-out infinite; }

.word-card {
  border-radius: var(--radius-card);
  border: 1px solid var(--hairline);
  background: var(--surface);
  padding: 14px;
  box-shadow: var(--shadow-1);
}
.wc-head { display: flex; align-items: baseline; gap: 8px; flex-wrap: wrap; }
.wc-head b { font-family: var(--sans); font-size: 16px; }
.wc-head span { color: var(--muted-2); font: 400 11.5px/1.4 var(--mono); }
.wc-def { margin-top: 7px; color: var(--text-2); font-size: 12.5px; }
.wc-ex {
  margin-top: 9px;
  padding-left: 9px;
  border-left: 2px solid var(--line);
  color: var(--muted);
  font-family: var(--sans);
  font-size: 12.5px;
  line-height: 1.6;
}
.wc-ex-tr { margin-top: 4px; padding-left: 11px; color: var(--brand); font-size: 12.5px; }
.word-card .mini-btn { margin-top: 11px; }

.panel-foot-inline {
  display: flex; gap: 10px;
  margin-top: 2px;
  padding-top: 11px;
  border-top: 1px dashed var(--line);
}
.tok {
  display: inline-flex; align-items: baseline; gap: 5px;
  color: var(--muted-2);
  font-size: 11px;
}
.tok b { color: var(--text-2); font: 600 12px/1 var(--mono); }

/* scene: settings */
.field { display: flex; flex-direction: column; gap: 5px; }
.f-label { color: var(--muted); font-size: 13px; }
.f-input, .f-area {
  display: flex; align-items: center; gap: 6px;
  padding: 8px 12px;
  border-radius: var(--radius-field);
  border: 1px solid var(--line-strong);
  background: var(--surface);
  color: var(--text);
  font-size: 14px;
  word-break: break-all;
  min-height: 38px;
}
.f-input.mono { font-family: var(--mono); font-size: 11.5px; }
.f-select { justify-content: space-between; color: var(--text); font-weight: 500; }
.f-area {
  display: block;
  line-height: 1.6;
  color: var(--text-3);
  font-size: 13px;
}
.f-input.is-fill, .f-area.is-fill { border-color: var(--brand-band); box-shadow: 0 0 0 3px var(--accent-soft-2); }
.set-actions { display: flex; gap: 6px; margin-top: 2px; }

.panel-input {
  display: flex; align-items: center; gap: 10px;
  padding: 11px 14px;
  border-top: 1px solid var(--line);
  background: var(--surface);
}
.pi-text { flex: 1; color: var(--muted-2); font-size: 12.5px; }
.pi-send {
  display: grid; place-items: center;
  width: 28px; height: 28px;
  border-radius: var(--radius-field);
  background: var(--brand-band);
  color: #fff;
}

/* stage bar */
.stage-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 20px;
}
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  padding: 9px 16px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  color: var(--text-3);
  font-size: 14px;
  white-space: nowrap;
  transition: color .16s ease, border-color .16s ease, background .16s ease, transform .16s ease;
}
.chip:hover { color: var(--text); border-color: var(--muted-2); transform: translateY(-1px); }
.chip[aria-selected="true"] {
  background: var(--brand-band);
  border-color: var(--brand-band);
  color: #fff;
  font-weight: 600;
}
.stage-note {
  margin-left: auto;
  color: var(--muted-2);
  font-size: 12px;
}

/* ------------------------------------------------------------
   feature cards
   ------------------------------------------------------------ */

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(268px, 1fr));
  gap: 16px;
}
.card {
  padding: 24px 22px;
  border-radius: var(--radius-card);
  border: 1px solid var(--hairline);
  background: var(--surface);
  box-shadow: var(--shadow-1);
  transition: transform .2s ease, border-color .2s ease, box-shadow .24s ease;
}
.card:hover {
  transform: translateY(-3px);
  border-color: var(--accent-line);
  box-shadow: var(--shadow-2);
}
.card-ico {
  display: grid; place-items: center;
  width: 40px; height: 40px;
  margin-bottom: 14px;
  border-radius: var(--radius-field);
  background: var(--accent-soft-2);
  color: var(--brand);
  border: 1px solid var(--accent-line);
}
.card h3 { font-size: 17px; }
.card p { margin-top: 9px; color: var(--muted); font-size: 14.5px; line-height: 1.7; }

/* ------------------------------------------------------------
   how it works
   ------------------------------------------------------------ */

.pipeline {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 4px 32px;
  padding: 28px 30px;
  border-radius: var(--radius-big);
  background: #163b37;
  color: #fff;
}
.pipeline li {
  position: relative;
  padding: 20px 0 22px;
  border-radius: 0;
  border: 0;
  border-top: 1px solid rgba(255, 255, 255, .12);
  background: transparent;
}
.step-no {
  display: block;
  margin-bottom: 12px;
  color: rgba(255, 255, 255, .5);
  font: 600 13px/1 var(--mono);
  letter-spacing: .12em;
}
.pipeline h3 { font-size: 18px; color: #fff; }
.pipeline p { margin-top: 9px; color: rgba(255, 255, 255, .72); font-size: 14.5px; line-height: 1.7; }
.step-tag {
  display: inline-block;
  margin-top: 14px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .12);
  color: rgba(255, 255, 255, .82);
  font-size: 11.5px;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
  gap: 16px;
  margin-top: 16px;
}
.split-main, .split-side {
  padding: 26px 24px;
  border-radius: var(--radius-card);
  border: 1px solid var(--hairline);
  background: var(--surface);
  box-shadow: var(--shadow-1);
}
.split-main h3, .split-side h3 { font-size: 17px; }
.split-main > p { margin-top: 10px; color: var(--muted); font-size: 14px; line-height: 1.75; }
.layers { margin-top: 18px; display: flex; flex-direction: column; }
.layers li {
  display: flex; align-items: baseline; gap: 12px;
  padding: 12px 0;
  border-top: 1px solid var(--line-soft);
  font-size: 13.5px;
}
.layers .mono {
  flex: 0 0 84px;
  color: var(--brand);
  font-size: 12.5px;
}
.layers b { font-weight: 400; color: var(--muted); }

.stack { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.stack li {
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface-2);
  color: var(--text-3);
  font: 500 12.5px/1.5 var(--sans);
}

/* ------------------------------------------------------------
   models
   ------------------------------------------------------------ */

.providers {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 16px;
}
.provider {
  padding: 22px 20px;
  border-radius: var(--radius-card);
  border: 1px solid var(--hairline);
  background: var(--surface);
  box-shadow: var(--shadow-1);
  transition: border-color .2s ease, transform .2s ease, box-shadow .2s ease;
}
.provider:hover { border-color: var(--accent-line); transform: translateY(-3px); box-shadow: var(--shadow-2); }
.p-name {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  border: 1px solid var(--accent-line);
  background: transparent;
  color: var(--brand);
  font: 600 13px/1.6 var(--mono);
}
.p-url {
  margin-top: 12px;
  color: var(--text-3);
  font-size: 12px;
  word-break: break-all;
}
.provider p:last-child { margin-top: 10px; color: var(--muted); font-size: 13.5px; line-height: 1.7; }

.prompt-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 16px;
  margin-top: 16px;
}
.prompt-card {
  padding: 20px;
  border-radius: var(--radius-card);
  border: 1px solid var(--hairline);
  background: var(--surface);
  box-shadow: var(--shadow-1);
}
.pc-label {
  display: block;
  margin-bottom: 11px;
  color: var(--muted);
  font-size: 13px;
}
.prompt-card pre {
  margin: 0;
  color: var(--text-3);
  font-size: 12.5px;
  line-height: 1.75;
  white-space: pre-wrap;
}
.prompt-note {
  display: flex;
  align-items: center;
  padding: 20px;
  border-radius: var(--radius-card);
  border: 1px solid var(--accent-line);
  background: var(--accent-soft);
}
.prompt-note p { color: var(--muted); font-size: 13.5px; line-height: 1.75; }

/* ------------------------------------------------------------
   install
   ------------------------------------------------------------ */

.install-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr);
  gap: 20px;
  align-items: start;
}
.install-steps { display: flex; flex-direction: column; gap: 18px; }
.install-steps li { display: flex; gap: 14px; }
.install-steps .step-no {
  flex: 0 0 30px;
  display: grid; place-items: center;
  width: 30px; height: 30px;
  margin: 0;
  border-radius: 50%;
  background: var(--brand-band);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0;
}
.install-steps h3 { font-size: 16px; }
.step-note { margin-top: 9px; color: var(--muted); font-size: 13.5px; line-height: 1.7; }
.step-note .mono {
  padding: 2px 7px;
  border-radius: 6px;
  background: var(--accent-soft-2);
  color: var(--brand);
  font-size: 12.5px;
}
.code {
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-top: 11px;
  padding: 14px;
  border-radius: var(--radius-card);
  border: 1px solid var(--hairline);
  background: var(--code-bg);
}
.code code {
  flex: 1;
  min-width: 0;
  color: var(--text-2);
  font-size: 12.5px;
  line-height: 1.8;
  white-space: pre-wrap;
  word-break: break-all;
}
.copy {
  flex: 0 0 auto;
  padding: 5px 12px;
  border-radius: var(--radius-field);
  border: 1px solid var(--line-strong);
  background: var(--surface);
  color: var(--text-3);
  font-size: 12.5px;
  transition: color .16s ease, border-color .16s ease;
}
.copy:hover { color: var(--text); border-color: var(--muted-2); }
.copy.done { color: var(--brand); border-color: var(--accent-line); background: var(--accent-soft); }

.install-side { display: flex; flex-direction: column; gap: 14px; }
.perm-card {
  padding: 24px 22px;
  border-radius: var(--radius-card);
  border: 1px solid var(--hairline);
  background: var(--surface);
  box-shadow: var(--shadow-1);
}
.perm-card h3 { font-size: 16px; }
.perm-list { margin-top: 16px; display: flex; flex-direction: column; }
.perm-list li {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 12px 0;
  border-top: 1px dashed var(--line-soft);
}
.perm-list .mono { color: var(--brand); font-size: 12.5px; }
.perm-list b { font-weight: 400; color: var(--muted); font-size: 13px; line-height: 1.6; }
.perm-note { margin-top: 14px; color: var(--muted-2); font-size: 12px; }

.local-card {
  display: flex;
  gap: 12px;
  padding: 20px;
  border-radius: var(--radius-card);
  border: 1px solid var(--accent-line);
  background: var(--accent-soft);
}
.lc-dot {
  flex: 0 0 8px;
  width: 8px; height: 8px;
  margin-top: 7px;
  border-radius: 50%;
  background: var(--brand-band);
}
.local-card p { color: var(--text-3); font-size: 13.5px; line-height: 1.75; }
.local-card b { color: var(--text); }

/* ------------------------------------------------------------
   faq
   ------------------------------------------------------------ */

.faq {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 12px;
  align-items: start;
}
.faq details {
  border-radius: var(--radius-card);
  border: 1px solid var(--hairline);
  background: var(--surface);
  overflow: hidden;
  box-shadow: var(--shadow-1);
  transition: border-color .2s ease;
}
.faq details[open] { border-color: var(--accent-line); }
.faq summary {
  position: relative;
  padding: 18px 46px 18px 20px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  list-style: none;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "";
  position: absolute;
  right: 18px; top: 50%;
  width: 9px; height: 9px;
  margin-top: -6px;
  border-right: 1.6px solid var(--muted);
  border-bottom: 1.6px solid var(--muted);
  transform: rotate(45deg);
  transition: transform .24s ease, border-color .24s ease;
}
.faq details[open] summary::after {
  transform: rotate(-135deg);
  margin-top: -2px;
  border-color: var(--accent);
}
.faq details p {
  padding: 0 18px 18px;
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.8;
}

/* ------------------------------------------------------------
   final + footer
   ------------------------------------------------------------ */

.final {
  padding: 40px 24px 90px;
  text-align: center;
}
.final h2 { font-size: clamp(28px, 4vw, 44px); }
.final p {
  max-width: 34em;
  margin: 18px auto 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.75;
}

.foot {
  border-top: 1px solid var(--line);
  background: var(--surface);
}
.foot-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 22px;
  padding-top: 26px;
  padding-bottom: 26px;
}
.foot-brand {
  display: inline-flex; align-items: center; gap: 9px;
  color: var(--brand);
  font-family: var(--sans);
  font-size: 15px;
  font-weight: 700;
}
.foot-ver { color: var(--muted-2); font: 400 11.5px/1.5 var(--mono); }
.foot nav { display: flex; flex-wrap: wrap; gap: 14px; margin-left: auto; }
.foot nav a { color: var(--muted); font-size: 13px; }
.foot nav a:hover { color: var(--text); }
.foot-note { flex: 1 0 100%; color: var(--muted-2); font-size: 11.5px; }

/* ------------------------------------------------------------
   reveal on scroll
   ------------------------------------------------------------ */

.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .6s cubic-bezier(.2, .7, .3, 1), transform .6s cubic-bezier(.2, .7, .3, 1);
}
.reveal.is-in { opacity: 1; transform: none; }

/* theme crossfade only while flipping */
.theme-anim, .theme-anim * {
  transition: background-color .3s ease, border-color .3s ease, color .3s ease !important;
}

/* ------------------------------------------------------------
   responsive
   ------------------------------------------------------------ */

@media (max-width: 1300px) {
  /* 导航一行放不下时，先收起次要信息，别让品牌名被截断 */
  .brand-tag { display: none; }
}

@media (max-width: 1180px) {
  .ghost-btn > span[data-i18n] { display: none; }
  .ghost-btn { padding: 0 10px; }
}

@media (max-width: 1040px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 40px;
    padding-top: 56px;
  }
  .hero-side { max-width: 460px; }
  .split, .install-grid { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  .nav-links { display: none; }
  .nav-actions { margin-left: auto; }
  .window-body { flex-direction: column; }
  .panel {
    flex: 0 0 auto;
    border-left: 0;
    border-top: 1px solid var(--line);
  }
  .panel-body { max-height: 420px; }
  .page-content { padding: 26px 22px; }
}

@media (max-width: 720px) {
  .section { padding: 56px 20px; }
  .hero { padding: 40px 20px 20px; }
  .hero-facts { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px 0; }
  .ghost-btn span { display: none; }
  .ghost-btn { padding: 0 10px; }
  .brand-name { font-size: 14px; }
  .stage-note { margin-left: 0; }
  .cta-row .solid-btn, .cta-row .line-btn { flex: 1; justify-content: center; }
  .faq { grid-template-columns: 1fr; }
  .prompt-row { grid-template-columns: 1fr; }
  .foot nav { margin-left: 0; }
}

@media (max-width: 480px) {
  /* 窄屏只留图标，别把品牌名挤成 “T…” */
  .brand-name { display: none; }
}

@media (max-width: 420px) {
  .brand-tag { display: none; }
  .chip { font-size: 12px; padding: 7px 12px; }
}

/* ------------------------------------------------------------
   motion / print
   ------------------------------------------------------------ */

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}

@media print {
  .bg, .nav, .foot, .stage-bar, .stage-glow {
  pointer-events: none; display: none !important; }
  body { background: #fff; }
  .reveal { opacity: 1; transform: none; }
}

/* ------------------------------------------------------------
   对齐插件本体的补充位
   （页头副标题、模型配置弹窗的副标题/×/页脚、演示台里的配置场景）
   ------------------------------------------------------------ */

.brand-line { display: flex; flex-direction: column; gap: 1px; min-width: 0; }
.brand-sub {
  color: rgba(255, 255, 255, .78);
  font-size: 11.5px;
  line-height: 1.35;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.hc-x { margin-left: auto; color: var(--muted-2); font-size: 19px; line-height: 1; }
.hc-sub {
  padding: 12px 18px 0;
  color: var(--muted);
  font-size: 12.5px;
  line-height: 1.65;
}
.hc-body .hc-row:last-of-type { padding-bottom: 0; }
.hc-val.hc-textarea {
  display: block;
  min-height: 64px;
  color: var(--text-3);
  font-family: var(--mono);
  font-size: 12.5px;
  line-height: 1.65;
}
.hc-link { color: var(--brand); font-size: 14px; font-weight: 500; }
.hc-done {
  margin-left: auto;
  padding: 8px 16px;
  border-radius: var(--radius-field);
  background: var(--brand-band);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
}

.set-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-top: 2px;
}

@media (max-width: 900px) {
  .brand-sub { display: none; }
}

/* 深色下顶部那层暖色晕染换成红调，不要用纸色 */
[data-theme="dark"] .bg-rules {
  background: linear-gradient(180deg, rgba(15, 118, 110, .08), rgba(16, 30, 28, 0) 55%);
}

/* ------------------------------------------------------------
   文档页（使用条款 / 隐私说明）
   ------------------------------------------------------------ */

.doc-hero { padding: 56px 24px 4px; }
.doc-hero h1 { margin-top: 12px; font-size: clamp(28px, 4vw, 40px); }
.doc-hero .lede { margin-top: 16px; max-width: 40em; }

.doc-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 20px;
  color: var(--muted-2);
  font-size: 12.5px;
}
.doc-meta .tag {
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid var(--accent-line);
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 12px;
}

.doc { padding: 20px 24px 76px; }
.doc-inner { max-width: 780px; }

.doc h2 {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-top: 44px;
  font-family: var(--sans);
  font-size: 19px;
  font-weight: 700;
  letter-spacing: 0;
}
.doc h2 .num { color: var(--accent); font: 600 14px/1 var(--mono); }
.doc h3 { margin-top: 26px; font-family: var(--sans); font-size: 15.5px; font-weight: 600; letter-spacing: 0; }
.doc p { margin-top: 12px; color: var(--text-3); font-size: 15.5px; line-height: 1.85; }
.doc ul { margin-top: 12px; }
.doc ul li {
  position: relative;
  margin-top: 9px;
  padding-left: 18px;
  color: var(--text-3);
  font-size: 15.5px;
  line-height: 1.8;
}
.doc ul li::before {
  content: "";
  position: absolute;
  left: 3px; top: .74em;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--accent);
  opacity: .5;
}
.doc strong { color: var(--text); font-weight: 600; }
.doc code {
  padding: 2px 6px;
  border-radius: 6px;
  background: var(--accent-soft-2);
  color: var(--accent);
  font-size: 13px;
}
.doc .note {
  margin-top: 30px;
  padding: 18px 20px;
  border: 1px solid var(--accent-line);
  border-radius: var(--radius-card);
  background: var(--accent-soft);
}
.doc .note p { margin-top: 0; }
.doc .note p + p { margin-top: 10px; }

.doc-foot {
  margin-top: 46px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  color: var(--muted);
  font-size: 13.5px;
}
.doc-foot a { color: var(--accent); }

/* 双语文档：整块切换 */
[data-lang] { display: none; }
[data-lang].is-on { display: block; }

.doc-nav a.is-here { color: #fff; background: rgba(255, 255, 255, .16); }

@media (max-width: 900px) {
  .doc-nav { display: none; }
}

/* 页脚：返回博客做成明确的出口 */
.foot nav a.foot-back {
  color: var(--accent);
  font-weight: 500;
}
.foot nav a.foot-back::after { content: " ↗"; font-size: .9em; }
.foot-note a { color: var(--accent); }

/* 导航里的 GitHub 星标徽标（红带上的浅色胶囊） */
.gh-stars {
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .2);
  color: #fff;
  font-size: 11.5px;
  font-weight: 600;
  line-height: 1.5;
  font-variant-numeric: tabular-nums;   /* 数字变化时宽度不跳 */
  transition: background .16s ease;
}
.ghost-btn:hover .gh-stars { background: rgba(255, 255, 255, .32); }

/* New reader preview: actual extension UI, with original demo content. */
.hero-preview-image { display:block; width:100%; height:auto; border-radius:0 0 16px 16px; }
.hero-card .hc-head { display:flex; align-items:center; gap:10px; }
.hc-brand-icon { width:28px; height:28px; border-radius:7px; }
.brand-mark img { width:32px; height:32px; }

.source-install { margin-top:24px; padding:18px 20px; border:1px solid var(--line); border-radius:16px; background:var(--surface); }
.source-install summary { color:var(--accent); font-weight:600; }
.source-install .install-steps { margin-top:20px; }
.install-steps .solid-btn { margin-top:16px; }