/* ===== 首页专属样式 ===== */
.page-home {
  --page-section: clamp(4rem, 10vw, 7.5rem);
  background: var(--color-black);
  color: var(--color-body);
  overflow-x: hidden;
  scroll-behavior: smooth;
  font-family: var(--font-sans);
}

@media (prefers-reduced-motion: reduce) {
  .page-home {
    scroll-behavior: auto;
  }
  .page-home .btn--primary::after {
    display: none;
  }
}

.page-home h1,
.page-home h2 {
  font-family: var(--font-serif);
  font-weight: 300;
  color: #FFFFFF;
}

.page-home h1 {
  font-size: clamp(2.4rem, 7vw, 4.5rem);
  line-height: 1.08;
  letter-spacing: 0.01em;
  margin: 0 0 1.2rem;
}

.page-home h2 {
  font-size: clamp(2rem, 4.5vw, 3.3rem);
  line-height: 1.15;
  margin: 0 0 1rem;
}

.page-home h3 {
  font-family: var(--font-serif);
  font-weight: 500;
  color: #FFFFFF;
  margin: 0 0 0.5rem;
}

.page-home__section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-gold);
  border: 1px solid var(--color-border);
  padding: 0.3rem 0.8rem;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.page-home__section-tag::before {
  content: "";
  width: 20px;
  height: 1px;
  background: var(--color-gold);
}

.page-home__text-link {
  color: var(--color-gold);
  text-decoration: none;
  border-bottom: 1px solid rgba(212, 175, 55, 0.5);
  padding-bottom: 2px;
  display: inline-block;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.page-home__text-link:hover {
  color: var(--color-gold-light);
  border-color: var(--color-gold-light);
}

/* Hero */
.page-home__hero {
  position: relative;
  overflow: hidden;
  padding: var(--space-xl) 0;
  background:
    radial-gradient(120% 180% at 100% 0%, rgba(139, 0, 0, 0.28) 0%, transparent 55%),
    var(--color-black);
  display: flex;
  align-items: center;
}

.page-home__hero::before {
  content: "";
  position: absolute;
  z-index: 0;
  top: 0;
  right: 0;
  width: 44%;
  height: 100%;
  background: linear-gradient(135deg, var(--color-gold), var(--color-gold-light));
  clip-path: polygon(22% 0, 100% 0, 100% 100%, 0 100%);
  display: none;
}

.page-home__hero::after {
  content: "";
  position: absolute;
  z-index: 0;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--color-gold), var(--color-gold-light), var(--color-gold));
}

.page-home__hero-wrap {
  position: relative;
  z-index: 1;
  display: grid;
  gap: var(--space-md);
  align-items: center;
}

.page-home__hero-copy {
  max-width: 640px;
}

.page-home__kicker {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 1rem;
}

.page-home__kicker::before {
  content: "";
  width: 30px;
  height: 1px;
  background: var(--color-gold);
}

.page-home__hero-desc {
  font-size: 1.02rem;
  line-height: 1.75;
  color: var(--color-muted);
  max-width: 60ch;
  margin-bottom: var(--space-md);
}

.page-home__hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-bottom: var(--space-md);
}

.page-home .btn--primary {
  position: relative;
  overflow: hidden;
  border-radius: 2px;
  box-shadow: var(--shadow-gold);
  text-decoration: none;
}

.page-home .btn--primary::after {
  content: "";
  position: absolute;
  top: 0;
  left: -60%;
  width: 42%;
  height: 100%;
  background: linear-gradient(105deg, transparent, rgba(255, 255, 255, 0.4), transparent);
  transform: skewX(-20deg);
  pointer-events: none;
  transition: left 0.55s ease;
}

.page-home .btn--primary:hover::after,
.page-home .btn--primary:active::after {
  left: 130%;
}

.page-home__quickstats {
  display: flex;
  flex-wrap: wrap;
  gap: 1.8rem;
  margin: 0;
}

.page-home__stat {
  display: grid;
  gap: 0.3rem;
}

.page-home__stat dt {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-muted);
}

.page-home__stat dd {
  font-family: var(--font-serif);
  font-size: 2rem;
  line-height: 1;
  color: var(--color-gold);
  margin: 0;
}

.page-home__hero-media {
  position: relative;
  max-width: 280px;
  margin: 0 auto;
  border: 1px solid var(--color-border);
  padding: 0.7rem;
  background: rgba(255, 255, 255, 0.02);
}

.page-home__hero-img {
  display: block;
  width: 100%;
  height: auto;
}

@media (min-width: 900px) {
  .page-home__hero {
    min-height: calc(100vh - var(--header-h));
  }
  .page-home__hero::before {
    display: block;
  }
  .page-home__hero-wrap {
    grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.9fr);
    min-height: calc(100vh - var(--header-h) - var(--space-xl));
  }
  .page-home__hero-media {
    max-width: 340px;
    margin-left: auto;
    margin-right: 0;
  }
}

/* 立即访问 */
.page-home__access {
  padding: var(--space-lg) 0;
  background:
    linear-gradient(180deg, rgba(139, 0, 0, 0.16) 0%, rgba(139, 0, 0, 0) 60%),
    var(--color-black-soft);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.page-home__access-top {
  display: grid;
  gap: 1rem;
  margin-bottom: var(--space-md);
}

.page-home__access-top > p {
  color: var(--color-muted);
  line-height: 1.7;
  max-width: 60ch;
  margin: 0;
}

.page-home__steps {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-md);
  display: grid;
  gap: 1rem;
}

.page-home__steps .step-list__item {
  border: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.02);
  padding: 1.5rem;
  margin: 0;
}

.page-home__step-num {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.7rem;
  line-height: 1;
  color: var(--color-gold);
  opacity: 0.6;
  margin-bottom: 0.5rem;
}

.page-home__steps p {
  color: var(--color-muted);
  line-height: 1.7;
  font-size: 0.92rem;
  margin: 0;
}

.page-home__access-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

@media (min-width: 720px) {
  .page-home__access-top {
    grid-template-columns: 0.8fr 1.2fr;
    align-items: end;
  }
  .page-home__steps {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }
}

/* 本月精选案例 */
.page-home__cases {
  padding: var(--page-section) 0 0;
}

.page-home__cases-head {
  margin-bottom: var(--space-md);
}

.page-home__cases-banner {
  margin: var(--space-md) 0;
  overflow: hidden;
}

.page-home__cases-banner img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  clip-path: polygon(0 0, 100% 2%, 98% 100%, 2% 100%);
}

.page-home__case-list {
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-md);
  display: grid;
  gap: 1rem;
}

.page-home__case-item {
  border: 1px solid var(--color-border);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0));
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  transition: transform var(--transition-base), border-color var(--transition-base);
}

.page-home__case-item:hover {
  transform: translateY(-4px);
  border-color: rgba(212, 175, 55, 0.8);
}

.page-home__case-num {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  line-height: 1;
  color: var(--color-gold);
  opacity: 0.55;
}

.page-home__case-item p {
  font-size: 0.9rem;
  line-height: 1.65;
  color: var(--color-muted);
  margin: 0;
  flex: 1;
}

.page-home__case-tag {
  align-self: flex-start;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  color: var(--color-gold-light);
  background: rgba(139, 0, 0, 0.2);
  border: 1px solid rgba(139, 0, 0, 0.6);
  padding: 0.22rem 0.6rem;
}

.page-home__cases-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0 0;
  border-top: 1px solid rgba(212, 175, 55, 0.18);
  margin-bottom: var(--space-lg);
}

.page-home__cases-foot p {
  color: var(--color-muted);
  font-size: 0.9rem;
  margin: 0;
}

@media (min-width: 700px) {
  .page-home__case-list {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
  }
}

@media (min-width: 1020px) {
  .page-home__case-list {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }
}

/* 最新更新记录 */
.page-home__updates {
  padding: var(--page-section) 0;
  background: var(--color-black-soft);
  border-top: 1px solid var(--color-border);
}

.page-home__updates-wrap {
  display: grid;
  gap: var(--space-lg);
}

.page-home__updates-main .section__lead {
  max-width: 54ch;
}

.page-home__timeline {
  margin: var(--space-md) 0;
}

.page-home__timeline .timeline__time {
  display: inline-block;
  color: var(--color-gold);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  margin-bottom: 0.3rem;
}

.page-home__timeline .timeline__title {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  color: #FFFFFF;
  margin-bottom: 0.4rem;
}

.page-home__timeline .timeline__desc {
  color: var(--color-muted);
  line-height: 1.7;
  font-size: 0.92rem;
  margin-bottom: 0.5rem;
}

.page-home__updates-foot {
  margin-top: var(--space-md);
}

.page-home__updates-figure {
  margin: 0;
}

.page-home__updates-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-card);
}

@media (min-width: 900px) {
  .page-home__updates-wrap {
    grid-template-columns: 1.15fr 0.85fr;
    align-items: start;
  }
}

/* PC端帮助文档 */
.page-home__support {
  padding: var(--page-section) 0;
}

.page-home__support-grid {
  display: grid;
  gap: var(--space-lg);
}

.page-home__support-visual {
  overflow: hidden;
}

.page-home__support-visual img {
  display: block;
  width: 100%;
  height: auto;
  clip-path: polygon(0 2%, 100% 0, 98% 100%, 2% 100%);
}

.page-home__support-copy > p:not(.page-home__section-tag) {
  line-height: 1.75;
  color: var(--color-muted);
  max-width: 58ch;
  margin-bottom: 1.6rem;
}

.page-home__support-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

@media (min-width: 900px) {
  .page-home__support-grid {
    grid-template-columns: 0.9fr 1.1fr;
    align-items: center;
  }
}