/* 首页专用样式（仅 index 页引入；可写 html 以防首页横向溢出） */

html {
  overflow-x: hidden;
}

.index-wrap {
  box-sizing: border-box;
  width: 100%;
  max-width: 1000px;
  min-width: 0;
  margin: 0 auto;
  padding: clamp(14px, 2.8vw, 26px) clamp(10px, 2.2vw, 18px) clamp(18px, 3.6vw, 40px);
}

.index-header {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: clamp(12px, 2vw, 16px);
  padding: clamp(8px, 1.6vw, 14px) 0 clamp(6px, 1vw, 8px);
}

.index-title {
  font-weight: 800;
  font-size: clamp(24px, calc(2.2vw + 16px), 32px);
  letter-spacing: 0.3px;
  color: var(--text-color);
  opacity: 0.86;
  max-width: 100%;
  text-align: center;
}

.index-search {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  display: flex;
  justify-content: center;
  box-sizing: border-box;
}

.index-search input[type='text'] {
  width: 100%;
  max-width: 560px;
  padding: 13px 16px;
  border: 1px solid var(--input-border);
  border-radius: 12px;
  background: var(--input-bg);
  color: var(--button-text-color);
  outline: none;
  font-size: var(--ui-font-size);
  font-weight: 500;
  box-sizing: border-box;
  transition: border-color 0.18s ease, box-shadow 0.18s ease, background-color 0.18s ease;
}

.index-search input[type='text']::placeholder {
  color: color-mix(in srgb, var(--text-color) 45%, transparent);
}

.index-search input[type='text']:focus {
  border-color: var(--writer-stroke);
  box-shadow: 0 0 0 4px rgba(35, 131, 226, 0.16);
}

.index-buttons {
  margin-top: clamp(16px, 3vw, 22px);
  display: flex;
  gap: clamp(10px, 2vw, 14px);
  justify-content: center;
  flex-wrap: wrap;
  max-width: 100%;
}

.index-buttons .practice-button[aria-pressed='true'] {
  background-color: var(--button-hover);
  color: var(--button-text-color);
  border-color: var(--writer-stroke);
}

.index-mount {
  border: 1px solid var(--border-color);
  margin-top: clamp(12px, 2.8vw, 22px);
  height: auto;
  width: 100%;
  max-width: 100%;
  min-width: 0;
  border-radius: clamp(10px, 1.4vw, 16px);
  background: var(--panel-bg);
  box-shadow: var(--shadow);
  overflow: auto;
  box-sizing: border-box;
  padding: clamp(8px, 1.6vw, 14px);
}

/* 与独立 display/practice 页一致：矮内容垂直居中，高内容从顶向下排 */
.index-mount .multi-wrap {
  margin-top: auto;
  margin-bottom: auto;
  height: auto;
  justify-content: flex-start;
}

.index-mount .preview-page {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  height: 100%;
  box-sizing: border-box;
}

.index-context-menu {
  position: fixed;
  z-index: 10000;
  min-width: min(220px, calc(100vw - 16px));
  max-width: calc(100vw - 16px);
  padding: 6px;
  border: 1px solid var(--border-color);
  border-radius: 10px;
  background: var(--bg-color);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 4px;
  box-sizing: border-box;
}

.index-context-menu-item {
  border: 0;
  border-radius: 8px;
  padding: 8px 10px;
  text-align: left;
  background: transparent;
  color: var(--text-color);
  cursor: pointer;
  font-size: var(--ui-font-size);
}

.index-context-menu-item:hover {
  background: var(--button-hover);
}

@media (max-width: 640px) {
  .index-title {
    letter-spacing: 0.15px;
  }

  .index-search input[type='text'] {
    width: 80%;
    max-width: 320px;
    padding: 11px 12px;
    border-radius: 10px;
  }
}