/* ==========================================================================
   KEditor 官网 · 首页样式
   ========================================================================== */

/* --------------------------------------------------------------- Hero -- */

.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-top: clamp(56px, 9vw, 104px);
  padding-bottom: clamp(40px, 6vw, 64px);
  color: var(--on-dark);
  background: var(--dark);
}

/* 网格底纹 */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 65% at 50% 0%, #000 25%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 90% 65% at 50% 0%, #000 25%, transparent 78%);
}

/* 光晕 */
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(560px 320px at 18% 6%, rgba(7, 193, 96, 0.28), transparent 70%),
    radial-gradient(620px 360px at 84% 12%, rgba(24, 168, 118, 0.2), transparent 72%),
    radial-gradient(900px 420px at 50% 104%, rgba(7, 193, 96, 0.16), transparent 70%);
  pointer-events: none;
}

.hero__inner { text-align: center; }

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 22px;
  padding: 6px 14px 6px 7px;
  font-size: 13.5px;
  font-weight: 500;
  color: var(--on-dark);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--dark-line);
  border-radius: 999px;
  backdrop-filter: blur(8px);
}

.hero__badge b {
  padding: 2px 9px;
  font-size: 12px;
  font-weight: 700;
  color: #06210f;
  background: linear-gradient(135deg, #6ce8a4, var(--brand));
  border-radius: 999px;
}

.hero__title {
  max-width: 20ch;
  margin-inline: auto;
  font-size: clamp(34px, 6.4vw, 68px);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.03em;
  color: #fff;
}

.hero__title em {
  font-style: normal;
  background: linear-gradient(100deg, #6ce8a4 0%, #07c160 45%, #35d8a0 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__lead {
  max-width: 62ch;
  margin: 22px auto 0;
  font-size: clamp(15.5px, 1.9vw, 18px);
  line-height: 1.78;
  color: var(--on-dark-muted);
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-top: 32px;
}

.hero__install {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  justify-content: center;
  margin-top: 24px;
}

.hero__hint {
  margin-top: 16px;
  font-size: 13.5px;
  color: var(--on-dark-dim);
}

.hero__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 44px;
  justify-content: center;
  margin-top: clamp(40px, 5vw, 60px);
  padding-top: clamp(26px, 3vw, 34px);
  border-top: 1px solid var(--dark-line);
}

.stat { text-align: center; }

.stat__num {
  font-size: clamp(22px, 2.6vw, 28px);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #fff;
}

.stat__num span {
  font-size: 0.6em;
  font-weight: 600;
  color: var(--brand);
}

.stat__label {
  margin-top: 4px;
  font-size: 13px;
  color: var(--on-dark-dim);
}

/* -------------------------------------------------------- 实机演示窗口 -- */

.playground {
  position: relative;
  z-index: 1;
  margin-top: clamp(40px, 5vw, 62px);
}

.window {
  border: 1px solid var(--dark-line);
  border-radius: 16px;
  background: var(--surface);
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.42), 0 0 0 1px rgba(255, 255, 255, 0.04) inset;
  overflow: hidden;
}

.window__bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 14px;
  background: var(--dark-2);
  border-bottom: 1px solid var(--dark-line);
}

.window__dots { display: flex; gap: 7px; flex: none; }

.window__dots i {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: #2c4638;
}

.window__dots i:nth-child(1) { background: #ff5f57; }
.window__dots i:nth-child(2) { background: #febc2e; }
.window__dots i:nth-child(3) { background: #28c840; }

.window__url {
  flex: 1;
  min-width: 0;
  padding: 5px 12px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--on-dark-dim);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--dark-line);
  border-radius: 7px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* 演示窗口放在 Hero 里，Hero 是居中排版 —— 必须显式左对齐，
   否则编辑器正文会继承 text-align: center（列表符号也会被甩到一边） */
.window__body {
  padding: 0;
  background: var(--surface-3);
  text-align: left;
}

.playground__fallback {
  padding: 28px 24px;
  font-size: 14.5px;
  color: var(--muted);
  text-align: center;
  background: var(--surface-2);
}

.playground__hint {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  align-items: center;
  justify-content: center;
  margin-top: 18px;
  font-size: 13.5px;
  color: var(--on-dark-dim);
}

.playground__hint b { color: var(--on-dark); font-weight: 600; }

/* 深底用的 .kbd 落在浅色卡片上几乎看不清，这里给浅色上下文一份配色 */
.fcard .kbd {
  color: var(--ink);
  background: var(--surface-3);
  border-color: var(--line-2);
}

.kbd {
  display: inline-block;
  padding: 1.5px 7px;
  font-family: var(--font-sans);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--on-dark);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--dark-line);
  border-bottom-width: 2px;
  border-radius: 6px;
}

/* ------------------------------------------------------------ 特性卡片 -- */

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(272px, 1fr));
  gap: 18px;
}

.fcard {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 26px 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform 0.24s var(--ease), box-shadow 0.24s var(--ease),
    border-color 0.24s var(--ease);
}

.fcard:hover {
  transform: translateY(-4px);
  border-color: var(--brand-line);
  box-shadow: var(--shadow);
}

.fcard__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  margin-bottom: 4px;
  color: var(--brand-strong);
  background: var(--brand-soft);
  border: 1px solid var(--brand-line);
  border-radius: 11px;
}

.fcard__icon svg { width: 21px; height: 21px; }

.fcard h3 { font-size: 17px; letter-spacing: -0.01em; }

.fcard p {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--muted);
}

.fcard__meta {
  margin-top: auto;
  padding-top: 12px;
  font-size: 13px;
  font-weight: 600;
  color: var(--brand-strong);
}

/* --------------------------------------------------------- 左文右码 -- */

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
  gap: clamp(24px, 4vw, 52px);
  align-items: start;
}

.split--reverse .split__text { order: 2; }

.split__title {
  font-size: clamp(23px, 2.8vw, 31px);
  margin-bottom: 14px;
}

.split__text > p {
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--muted);
}

.checklist {
  display: grid;
  gap: 11px;
  margin-top: 22px;
  list-style: none;
}

.checklist li {
  display: flex;
  gap: 11px;
  align-items: flex-start;
  font-size: 14.8px;
  line-height: 1.7;
  color: var(--text);
}

.checklist svg {
  flex: none;
  width: 20px;
  height: 20px;
  margin-top: 2px;
  color: var(--brand);
}

/* --------------------------------------------------------------- 页签 -- */

.tabs { margin-top: 4px; }

.tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 6px;
  margin-bottom: 16px;
  background: var(--surface-3);
  border: 1px solid var(--line);
  border-radius: 12px;
}

.section--dark .tabs__list {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--dark-line);
}

.tabs__btn {
  flex: 1 1 auto;
  padding: 9px 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--muted);
  background: transparent;
  border: 0;
  border-radius: 8px;
  transition: color 0.18s var(--ease), background-color 0.18s var(--ease),
    box-shadow 0.18s var(--ease);
}

.tabs__btn:hover { color: var(--ink); }

.tabs__btn[aria-selected="true"] {
  color: var(--ink);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.section--dark .tabs__btn { color: var(--on-dark-muted); }
.section--dark .tabs__btn:hover { color: #fff; }
.section--dark .tabs__btn[aria-selected="true"] {
  color: #06210f;
  background: linear-gradient(135deg, #6ce8a4, var(--brand));
}

.tabs__panel[hidden] { display: none; }

.tabs__note {
  margin-top: 12px;
  font-size: 13.5px;
  color: var(--muted);
}

/* ----------------------------------------------------------- 能力矩阵 -- */

.matrix-block + .matrix-block { margin-top: 34px; }

.matrix-block > h3 {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  font-size: 18px;
}

.matrix-block > h3 .tag-pill { transform: translateY(1px); }

/* ------------------------------------------------------------- 统计条 -- */

.quote-band {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px;
  padding: clamp(24px, 3vw, 34px);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.quote-band__item { text-align: center; padding: 8px; }

.quote-band__item + .quote-band__item {
  border-left: 1px dashed var(--line-2);
}

.quote-band__num {
  font-size: clamp(20px, 2.4vw, 26px);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--brand-strong);
}

.quote-band__label {
  margin-top: 6px;
  font-size: 13.5px;
  color: var(--muted);
}

@media (max-width: 860px) {
  /* 必须是 minmax(0, 1fr)：裸 1fr 的最小尺寸是 auto，
     单列里只要有一行超长代码，整列就被撑到几百 px，窄屏直接横向溢出 */
  .split { grid-template-columns: minmax(0, 1fr); }
  .split--reverse .split__text { order: 0; }
  .quote-band__item + .quote-band__item { border-left: 0; }
  .quote-band { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 520px) {
  .hero__stats { gap: 18px 26px; }
  .stat { flex: 1 1 40%; }
  .quote-band { grid-template-columns: minmax(0, 1fr); }
  .window__url { display: none; }
}

/* -------------------------------------------------------- 试用页控制条 -- */

.pg-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-bottom: 20px;
}

.pg-actions__note {
  margin-left: auto;
  font-size: 13.5px;
  color: var(--muted);
}

.pg-note {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  align-items: center;
  margin-top: 18px;
  font-size: 14px;
  color: var(--muted);
}

.pg-note b { color: var(--ink); font-weight: 600; }

.pg-output { margin-top: 26px; }

.code-block--scroll pre {
  max-height: 340px;
  overflow-y: auto;
}

@media (max-width: 640px) {
  .pg-actions__note { margin-left: 0; }
}

/* 窄屏下让长命令自己占一行，而不是从中间断开 */
.hero__hint .inline-code {
  display: inline-block;
  max-width: 100%;
  vertical-align: bottom;
}