/* ============================================================
   落地首页
   结构参考 img.91hk.vip 首页：Hero 双栏 + 生成器网格 + 编辑能力条
   + 案例 + 能力矩阵 + 深色场景带 + FAQ
   ============================================================ */

/* ---------------- 通用区块 ---------------- */
.home-section {
  padding: 4.5rem 0;
}

.home-section--tint {
  background: var(--canvas-50);
  border-top: 1px solid var(--line-100);
  border-bottom: 1px solid var(--line-100);
}

.home-section__head {
  margin-bottom: 2rem;
}

.home-section__title {
  margin: 0;
  font-size: 1.625rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--ink-950);
}

@media (min-width: 768px) {
  .home-section__title {
    font-size: 1.875rem;
  }
}

.home-section__desc {
  margin: 0.625rem 0 0;
  font-size: 0.875rem;
  line-height: 1.7;
  color: var(--ink-500);
}

.home-section__head--row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

/* ---------------- Hero ---------------- */
.hero {
  background: var(--canvas-100);
  border-bottom: 1px solid var(--line-100);
  padding: 3.5rem 0 4rem;
}

@media (min-width: 1024px) {
  .hero {
    padding: 5rem 0 5.5rem;
  }
}

.hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

@media (min-width: 1024px) {
  .hero__grid {
    grid-template-columns: 1.05fr 0.95fr;
    gap: 3.5rem;
  }
}

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  margin: 0 0 1.125rem;
  padding: 0.3125rem 0.625rem;
  border: 1px solid var(--brand-100);
  border-radius: 999px;
  background: var(--brand-50);
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--brand-700);
}

.hero__title {
  margin: 0;
  font-size: 2.125rem;
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--ink-950);
}

@media (min-width: 768px) {
  .hero__title {
    font-size: 3rem;
  }
}

@media (min-width: 1024px) {
  .hero__title {
    font-size: 3.25rem;
  }
}

.hero__desc {
  margin: 1.25rem 0 0;
  max-width: 34rem;
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--ink-500);
}

.hero__actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 1.75rem;
  flex-wrap: wrap;
}

.hero__actions .btn-primary {
  min-height: 2.875rem;
  padding: 0 1.5rem;
  font-size: 0.9375rem;
}

.hero__ghost {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  min-height: 2.875rem;
  padding: 0 1.25rem;
  border: 1px solid var(--line-200);
  border-radius: 0.5rem;
  background: var(--white);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--ink-800);
  transition: border-color 0.16s, color 0.16s;
}

.hero__ghost:hover {
  border-color: var(--brand-600);
  color: var(--brand-700);
}

.hero__note {
  margin: 1rem 0 0;
  font-size: 0.75rem;
  color: var(--ink-400);
}

/* Hero 右侧图墙 */
.hero__gallery {
  display: grid;
  grid-template-columns: 1.6fr 1fr;
  gap: 0.75rem;
  align-items: stretch;
}

.hero__main {
  position: relative;
  border-radius: 0.875rem;
  overflow: hidden;
  background: var(--canvas-100);
  box-shadow: var(--shadow-float);
  aspect-ratio: 4 / 5;
}

.hero__side {
  display: grid;
  grid-template-rows: repeat(3, 1fr);
  gap: 0.75rem;
}

.hero__thumb {
  border-radius: 0.625rem;
  overflow: hidden;
  background: var(--canvas-50);
  box-shadow: var(--shadow-card);
}

.hero__main img,
.hero__thumb img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* 没有真图时用渐变占位，保持视觉不塌 */
.hero__main--empty,
.hero__thumb--empty {
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #ddefea 0%, #f0f8f6 55%, #e8f1ef 100%);
  color: var(--brand-700);
  font-size: 0.75rem;
  font-weight: 600;
  text-align: center;
  padding: 1rem;
}

/* ---------------- 生成器网格 ---------------- */
.tool-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 640px) {
  .tool-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .tool-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.tool-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line-200);
  border-radius: 0.75rem;
  overflow: hidden;
  background: var(--white);
  transition: border-color 0.18s, transform 0.18s, box-shadow 0.18s;
}

.tool-card:hover {
  border-color: var(--brand-600);
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}

.tool-card__cover {
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, #f0f8f6 0%, #e6efec 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brand-700);
  font-size: 0.75rem;
  font-weight: 600;
  overflow: hidden;
}

.tool-card__cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.tool-card__body {
  padding: 0.875rem;
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  flex: 1;
}

.tool-card__title {
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--ink-950);
}

.tool-card__desc {
  margin: 0;
  font-size: 0.75rem;
  line-height: 1.65;
  color: var(--ink-500);
  flex: 1;
}

.tool-card__link {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--brand-700);
  margin-top: 0.25rem;
}

.tool-card__link:hover {
  color: var(--brand-800);
}

/* ---------------- 编辑能力条 ---------------- */
.cap-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 640px) {
  .cap-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .cap-row {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.cap {
  display: flex;
  gap: 0.75rem;
  padding: 1rem;
  border: 1px solid var(--line-200);
  border-radius: 0.75rem;
  background: var(--white);
  transition: border-color 0.18s;
}

.cap:hover {
  border-color: var(--brand-600);
}

.cap__icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 0.5rem;
  background: var(--brand-50);
  color: var(--brand-700);
}

.cap__icon svg {
  width: 1.125rem;
  height: 1.125rem;
}

.cap__title {
  margin: 0;
  font-size: 0.875rem;
  font-weight: 600;
}

.cap__desc {
  margin: 0.25rem 0 0;
  font-size: 0.75rem;
  line-height: 1.6;
  color: var(--ink-500);
}

/* ---------------- 案例 ---------------- */
.case-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

@media (min-width: 640px) {
  .case-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .case-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.case-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line-200);
  border-radius: 0.75rem;
  overflow: hidden;
  background: var(--white);
}

.case-card__cover {
  aspect-ratio: 4 / 3;
  background: linear-gradient(135deg, #f4f6f8 0%, #e9eeec 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink-400);
  font-size: 0.75rem;
}

.case-card__body {
  padding: 0.75rem;
}

.case-card__tag {
  display: inline-block;
  padding: 0.125rem 0.4375rem;
  border-radius: 999px;
  background: var(--brand-50);
  color: var(--brand-700);
  font-size: 0.625rem;
  font-weight: 600;
}

.case-card__title {
  margin: 0.5rem 0 0;
  font-size: 0.875rem;
  font-weight: 600;
}

.case-card__desc {
  margin: 0.25rem 0 0.625rem;
  font-size: 0.75rem;
  line-height: 1.6;
  color: var(--ink-500);
}

.case-card__actions {
  display: flex;
  gap: 0.375rem;
}

.case-card__actions a {
  flex: 1;
  height: 1.875rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.375rem;
  font-size: 0.6875rem;
  font-weight: 500;
}

.case-card__actions .is-primary {
  background: var(--brand-50);
  color: var(--brand-800);
  border: 1px solid var(--brand-100);
}

.case-card__actions .is-ghost {
  border: 1px solid var(--line-200);
  color: var(--ink-600);
}

/* ---------------- 能力矩阵 ---------------- */
.matrix {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem 2rem;
}

@media (min-width: 768px) {
  .matrix {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .matrix {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.matrix__item {
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--line-100);
}

.matrix__title {
  margin: 0;
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--ink-950);
}

.matrix__desc {
  margin: 0.375rem 0 0;
  font-size: 0.8125rem;
  line-height: 1.7;
  color: var(--ink-500);
}

/* ---------------- 深色场景带 ---------------- */
.scene-band {
  background: var(--media-950);
  color: #fff;
  padding: 3.5rem 0;
}

.scene-band__title {
  margin: 0 0 1.75rem;
  text-align: center;
  font-size: 1.375rem;
  font-weight: 700;
}

.scene-band__tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.625rem;
}

.scene-band__tag {
  padding: 0.5rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.86);
}

.scene-band__cta {
  display: flex;
  justify-content: center;
  margin-top: 2rem;
}

.scene-band__cta .btn-primary {
  min-height: 2.75rem;
  padding: 0 1.5rem;
}

/* ---------------- FAQ ---------------- */
.faq {
  max-width: 52rem;
  margin: 0 auto;
}

.faq__item {
  border-bottom: 1px solid var(--line-100);
}

.faq__q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: 100%;
  padding: 1.125rem 0;
  text-align: left;
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--ink-800);
}

.faq__q:hover {
  color: var(--brand-700);
}

.faq__mark {
  flex-shrink: 0;
  font-size: 1.125rem;
  color: var(--ink-400);
  transition: transform 0.2s;
}

.faq__item.is-open .faq__mark {
  transform: rotate(45deg);
}

.faq__a {
  display: none;
  padding: 0 0 1.125rem;
  font-size: 0.8125rem;
  line-height: 1.8;
  color: var(--ink-500);
}

.faq__item.is-open .faq__a {
  display: block;
}

/* ---------------- 底部 CTA ---------------- */
.final-cta {
  padding: 4rem 0;
  text-align: center;
  background: var(--canvas-50);
  border-top: 1px solid var(--line-100);
}

.final-cta__title {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 700;
}

.final-cta__desc {
  margin: 0.75rem 0 1.75rem;
  font-size: 0.875rem;
  color: var(--ink-500);
}

/* ---------------- 手机适配 ---------------- */
@media (max-width: 639px) {
  .hero {
    padding: 2rem 0 2.5rem;
  }
  .hero__title {
    font-size: 1.75rem;
  }
  .home-section {
    padding: 2.5rem 0;
  }
  .home-section__title {
    font-size: 1.25rem;
  }
  .hero__gallery {
    grid-template-columns: 1fr;
  }
  .hero__main {
    aspect-ratio: 16 / 10;
  }
  .hero__side {
    grid-template-rows: none;
    grid-template-columns: repeat(3, 1fr);
  }
  .hero__thumb {
    aspect-ratio: 1 / 1;
  }
}