/*!
 * 艺术名助手 —— 全站样式（Bootstrap 5.3 之上）
 */

:root {
  --ym-brand: #6d28d9;
  --ym-brand-2: #db2777;
  --ym-brand-3: #0891b2;
  --ym-radius: 14px;
  --ym-shadow: 0 10px 30px rgba(17, 24, 39, 0.08);
  --ym-shadow-sm: 0 4px 14px rgba(17, 24, 39, 0.06);
}

[data-bs-theme="dark"] {
  --ym-shadow: 0 10px 30px rgba(0, 0, 0, 0.42);
  --ym-shadow-sm: 0 4px 14px rgba(0, 0, 0, 0.35);
}

html,
body {
  scroll-behavior: smooth;
}

body {
  font-family: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", sans-serif;
  overflow-x: hidden;
}

section {
  scroll-margin-top: 80px;
}

.site-header {
  backdrop-filter: saturate(160%) blur(10px);
  background-color: color-mix(in srgb, var(--bs-body-bg) 88%, transparent);
  border-bottom: 1px solid var(--bs-border-color-translucent);
}

.brand-mark {
  width: 34px;
  height: 34px;
  flex: none;
  border-radius: 10px;
  display: grid;
  place-items: center;
  color: #fff;
  font-weight: 800;
  font-size: 1rem;
  background: linear-gradient(135deg, var(--ym-brand), var(--ym-brand-2));
}

.hero {
  padding: 52px 0 34px;
  border-bottom: 1px solid var(--bs-border-color-translucent);
  background-image:
    radial-gradient(circle at 12% 10%, rgba(109, 40, 217, 0.16), transparent 46%),
    radial-gradient(circle at 88% 6%, rgba(219, 39, 119, 0.14), transparent 44%),
    radial-gradient(rgba(120, 130, 150, 0.18) 1px, transparent 1px);
  background-size: auto, auto, 20px 20px;
}

.hero h1 {
  font-weight: 800;
  letter-spacing: -0.5px;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
}

.hero .lead {
  color: var(--bs-secondary-color);
  max-width: 60ch;
}

.gradient-text {
  background: linear-gradient(120deg, var(--ym-brand), var(--ym-brand-2) 60%, var(--ym-brand-3));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.hero-tags span {
  padding: 0.35em 0.7em;
  border-radius: 999px;
  font-size: 0.8rem;
  color: var(--bs-body-color);
  background: var(--bs-tertiary-bg);
  border: 1px solid var(--bs-border-color-translucent);
}

.io-card {
  padding: 16px;
  border: 1px solid var(--bs-border-color-translucent);
  border-radius: var(--ym-radius);
  background: var(--bs-body-bg);
  box-shadow: var(--ym-shadow-sm);
}

.io-card label {
  font-weight: 600;
  font-size: 0.92rem;
}

.io-input {
  width: 100%;
  min-height: 96px;
  padding: 12px 14px;
  font-size: 1.15rem;
  line-height: 1.5;
  resize: vertical;
  border-radius: 12px;
  border: 1px solid var(--bs-border-color);
  background: var(--bs-body-bg);
  color: var(--bs-body-color);
}

.io-input:focus {
  outline: 2px solid color-mix(in srgb, var(--ym-brand) 45%, transparent);
  outline-offset: 1px;
  border-color: var(--ym-brand);
}

.io-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 10px;
}

.io-count {
  margin-left: auto;
  font-size: 0.82rem;
  color: var(--bs-secondary-color);
}

.sample-chip {
  padding: 0.2rem 0.6rem;
  font-size: 0.8rem;
  border-radius: 999px;
  border: 1px solid var(--bs-border-color);
  background: var(--bs-tertiary-bg);
  color: var(--bs-body-color);
}

.sample-chip:hover {
  border-color: var(--ym-brand);
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
}

.tool-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: 18px;
  border: 1px solid var(--bs-border-color-translucent);
  border-radius: var(--ym-radius);
  background: var(--bs-body-bg);
  box-shadow: var(--ym-shadow-sm);
}

.tool-card-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.tool-card-desc {
  font-size: 0.86rem;
  color: var(--bs-secondary-color);
  margin-bottom: 10px;
}

.tool-card-list {
  list-style: none;
  margin: 0 0 12px;
  padding: 0;
  font-size: 1rem;
  line-height: 1.9;
  overflow-wrap: anywhere;
}

.tool-card-list li {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.tool-card-link {
  margin-top: auto;
  align-self: flex-start;
}

.style-list {
  display: grid;
  gap: 12px;
}

.style-card {
  padding: 14px 16px;
  border: 1px solid var(--bs-border-color-translucent);
  border-radius: var(--ym-radius);
  background: var(--bs-body-bg);
  box-shadow: var(--ym-shadow-sm);
}

.style-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 8px;
}

.style-name {
  font-size: 0.96rem;
  font-weight: 700;
  margin: 0;
}

.style-hint {
  font-size: 0.78rem;
  color: var(--bs-secondary-color);
}

.style-out {
  margin: 0 0 12px;
  font-size: 1.35rem;
  line-height: 1.75;
  overflow-wrap: anywhere;
  cursor: pointer;
  padding: 8px 10px;
  border-radius: 10px;
  background: var(--bs-tertiary-bg);
  min-height: 54px;
}

.style-out:hover {
  background: color-mix(in srgb, var(--ym-brand) 8%, var(--bs-tertiary-bg));
}

.style-out.is-placeholder {
  color: var(--bs-secondary-color);
}

.style-actions {
  display: flex;
  gap: 8px;
}

.sticky-input {
  position: sticky;
  top: 62px;
  z-index: 1020;
}

@media (max-width: 991.98px) {
  .sticky-input {
    position: static;
  }
}

.content-card {
  height: 100%;
  padding: 18px;
  border: 1px solid var(--bs-border-color-translucent);
  border-radius: var(--ym-radius);
  background: var(--bs-body-bg);
  box-shadow: var(--ym-shadow-sm);
}

.content-card h2,
.content-card h3 {
  font-size: 1.02rem;
  font-weight: 700;
  margin-bottom: 0.6rem;
}

.content-card p:last-child,
.content-card ul:last-child {
  margin-bottom: 0;
}

.check-list {
  list-style: none;
  padding-left: 0;
  margin-bottom: 0;
  font-size: 0.92rem;
}

.check-list li {
  position: relative;
  padding-left: 1.3rem;
  margin-bottom: 0.35rem;
}

.check-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.45em;
  width: 0.5rem;
  height: 0.3rem;
  border-left: 2px solid var(--ym-brand);
  border-bottom: 2px solid var(--ym-brand);
  transform: rotate(-45deg);
}

.faq-accordion .accordion-button {
  font-size: 0.96rem;
}

.faq-accordion .accordion-body {
  color: var(--bs-secondary-color);
  font-size: 0.9rem;
}

.cta-band {
  padding: 22px;
  border-radius: var(--ym-radius);
  border: 1px solid var(--bs-border-color-translucent);
  background:
    linear-gradient(120deg, rgba(109, 40, 217, 0.12), rgba(219, 39, 119, 0.12)),
    var(--bs-body-bg);
}

.site-footer {
  padding: 26px 0 22px;
  border-top: 1px solid var(--bs-border-color-translucent);
  background: var(--bs-tertiary-bg);
  color: var(--bs-secondary-color);
  font-size: 0.875rem;
}

.hint {
  font-size: 0.78rem;
  color: var(--bs-secondary-color);
}

@media (max-width: 575.98px) {
  .hero {
    padding: 30px 0 24px;
  }

  .style-out {
    font-size: 1.2rem;
  }

  .io-input {
    min-height: 76px;
    font-size: 1.05rem;
  }
}