/* ═══════════════════════════════════════════════
   RonVue — 首页专属样式
   依赖: variables.css, reset.css, components.css
   ═══════════════════════════════════════════════ */

/* ── Hero ── */
#hero {
  position: relative;
  height: 100vh;
  min-height: 700px;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--navy-deep);
}
.hero-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: right center;
  z-index: 0;
  opacity: 0;
  transform: scale(1.05);
  animation: heroReveal 1.6s 0.3s var(--ease-out) forwards;
}
@keyframes heroReveal {
  to { opacity: 1; transform: scale(1); }
}
.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(90deg, rgba(8,12,22,0.85) 0%, rgba(8,12,22,0.45) 45%, transparent 75%),
    linear-gradient(180deg, rgba(8,12,22,0.45) 0%, transparent 30%, transparent 60%, rgba(8,12,22,0.85) 100%);
}
.hero-content {
  position: relative;
  z-index: 10;
  padding: 0 3.5rem;
  max-width: 680px;
}
.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.8s 0.6s var(--ease-out) forwards;
}
.hero-eyebrow-line {
  width: 32px;
  height: 1px;
  background: var(--cyan);
}
.hero-eyebrow span {
  font-size: 0.72rem;
  letter-spacing: 0.32em;
  color: var(--cyan-light);
}
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(3rem, 6.4vw, 5.4rem);
  font-weight: 800;
  line-height: 1.35;
  letter-spacing: -0.02em;
  color: var(--on-navy);
  margin-bottom: 1.75rem;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeUp 1s 0.8s var(--ease-out) forwards;
  text-shadow: 0 2px 30px rgba(8,12,22,0.4);
}
.hero-title em {
  font-style: normal;
  color: var(--cyan);
  font-weight: 800;
}
.hero-sub {
  font-size: 1rem;
  font-weight: 300;
  color: var(--on-navy-dim);
  line-height: 1.9;
  margin-bottom: 2.75rem;
  max-width: 440px;
  letter-spacing: 0.02em;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.9s 1.05s var(--ease-out) forwards;
}
.hero-actions {
  display: flex;
  align-items: center;
  gap: 2rem;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 0.9s 1.25s var(--ease-out) forwards;
}

/* 首页按钮变体 (与 components.css 不同 — 首页特有配色) */
/* ⚠ btn-primary/btn-ghost 基础在 components.css，此处为首页覆盖 */
.hero-actions .btn-primary,
.product-actions .btn-primary {
  background: var(--cyan);
  color: var(--navy-deep);
}
.hero-actions .btn-primary:hover,
.product-actions .btn-primary:hover {
  background: var(--cyan-light);
}

.btn-ghost-arrow {
  width: 28px;
  height: 1px;
  background: currentColor;
  position: relative;
  transition: width 0.3s;
}
.btn-ghost:hover .btn-ghost-arrow { width: 40px; }
.btn-ghost-arrow::after {
  content: '';
  position: absolute;
  right: 0; top: 50%;
  width: 6px; height: 6px;
  border-right: 1px solid currentColor;
  border-top: 1px solid currentColor;
  transform: translateY(-50%) rotate(45deg);
}

.scroll-indicator {
  position: absolute;
  bottom: 2.5rem;
  left: 3.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  opacity: 0;
  animation: fadeUp 0.8s 1.7s forwards;
  z-index: 10;
}
.scroll-dot {
  width: 6px; height: 6px;
  background: var(--cyan);
  border-radius: 50%;
  animation: pulseDot 2.5s ease-in-out infinite;
}
@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.6); }
}
.scroll-label {
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  color: rgba(245,243,238,0.5);
}
.hero-stats {
  position: absolute;
  bottom: 2.5rem;
  right: 3.5rem;
  display: flex;
  gap: 2.5rem;
  opacity: 0;
  animation: fadeUp 0.8s 1.5s forwards;
  z-index: 10;
}
.hero-stat { text-align: right; }
.hero-stat-num {
  display: block;
  font-family: var(--font-display);
  font-size: 1.9rem;
  font-weight: 400;
  color: var(--on-navy);
  line-height: 1;
}
.hero-stat-label {
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  color: rgba(245,243,238,0.55);
  margin-top: 0.3rem;
}

/* ── S2 — Story ── */
#story {
  background: var(--ivory);
  padding: 9rem 0;
}
.story-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: start;
}
.story-image-wrap {
  position: relative;
}
.story-image-frame {
  position: relative;
  aspect-ratio: 3/4;
  background: var(--navy);
  overflow: hidden;
}
.story-image-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 30% center;
  transition: transform 1s var(--ease-smooth);
}
.story-image-frame:hover img {
  transform: scale(1.04);
}
.story-image-frame::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(8,12,22,0.55) 100%);
  pointer-events: none;
}
.story-image-accent {
  position: absolute;
  top: -1.5rem;
  left: -1.5rem;
  right: 1.5rem;
  bottom: 1.5rem;
  border: 1px solid var(--cyan-deep);
  opacity: 0.3;
  pointer-events: none;
}
.story-image-caption {
  position: absolute;
  bottom: 1.5rem;
  left: 1.5rem;
  font-size: 0.85rem;
  letter-spacing: 0.25em;
  color: var(--cyan-light);
  z-index: 2;
}
.story-title {
  font-family: var(--font-cn-serif);
  font-size: clamp(2rem, 3.6vw, 3.2rem);
  font-weight: 500;
  line-height: 1.3;
  color: var(--navy);
  margin-bottom: 2rem;
  letter-spacing: 0.02em;
}
.story-title em { font-style: normal; color: var(--cyan-deep); }
.story-body {
  font-size: 0.95rem;
  font-weight: 300;
  color: var(--ink-soft);
  line-height: 2;
  margin-bottom: 1.5rem;
  border-left: 2px solid var(--cyan);
  padding-left: 1.5rem;
  letter-spacing: 0.02em;
}
.story-link {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.78rem;
  letter-spacing: 0.28em;
  color: var(--cyan-deep);
  text-decoration: none;
  margin-top: 1rem;
  transition: gap 0.3s, color 0.3s;
}
.story-link:hover { gap: 1.25rem; color: var(--navy); }

/* ── S3 — Product ── */
#product {
  background: var(--navy-deep);
  padding: 9rem 0;
}
.product-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start !important;
}
.product-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 500px;
}
.product-ring {
  position: absolute;
  width: 380px; height: 380px;
  border: 1px solid rgba(168,142,106,0.15);
  border-radius: 50%;
  animation: slowSpin 30s linear infinite;
}
.product-ring-2 {
  width: 460px; height: 460px;
  border-style: dashed;
  border-color: rgba(168,142,106,0.08);
  animation-duration: 50s;
  animation-direction: reverse;
}
@keyframes slowSpin { to { transform: rotate(360deg); } }
.product-img-wrap {
  position: relative;
  z-index: 2;
  animation: productFloat 5s ease-in-out infinite;
}
.product-img-wrap img {
  width: 320px;
  height: auto;
  max-width: 100%;
  filter: drop-shadow(0 25px 35px rgba(168,142,106,0.15)) drop-shadow(0 0 40px rgba(8,12,22,0.4));
}
@keyframes productFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
.product-badge {
  position: absolute;
  top: 1rem;
  right: -1rem;
  background: var(--cyan);
  color: var(--navy-deep);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  padding: 0.5rem 1rem;
  transform: rotate(6deg);
  z-index: 3;
}
.product-collection {
  font-size: 0.95rem;
  letter-spacing: 0.32em;
  color: var(--cyan-light);
  margin-bottom: 2.5rem !important;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.product-collection::before {
  content: '';
  display: block;
  width: 20px;
  height: 1px;
  background: var(--cyan-light);
}
.product-title {
  font-family: var(--font-cn-serif);
  font-size: clamp(2.2rem, 4.2vw, 3.6rem);
  font-weight: 500;
  line-height: 1.2;
  color: var(--on-navy);
  margin-bottom: 2rem;
  letter-spacing: 0.02em;
}
.product-title em { font-style: normal; color: var(--cyan-light); }
.product-specs {
  display: flex;
  gap: 0;
  margin-bottom: 2.5rem;
  flex-wrap: wrap;
}
.product-spec {
  position: relative;
  padding-right: 1.5rem;
  margin-right: 1.5rem;
}
.product-spec:not(:last-child)::after {
  content: '·';
  position: absolute;
  right: 0;
  color: var(--cyan);
}
.product-spec-name {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--on-navy);
  margin-bottom: 0.2rem;
  letter-spacing: 0.05em;
}
.product-spec-sub {
  font-size: 0.72rem;
  color: var(--on-navy-dim);
  letter-spacing: 0.05em;
}
.product-price {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 400;
  color: var(--on-navy);
  margin-bottom: 2rem;
}
.product-price span {
  font-size: 0.85rem;
  font-weight: 300;
  color: var(--on-navy-dim);
  margin-left: 0.5rem;
  letter-spacing: 0.08em;
}
.product-actions { display: flex; gap: 1rem; align-items: center; }
.product-actions .btn-primary { flex: 0 0 66.66%; text-align: center; }

/* 首页特有按钮变体 */
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.95rem 2rem;
  border: 1.5px solid var(--cyan);
  color: var(--cyan);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  text-decoration: none;
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  transition: all 0.35s var(--ease-out);
  box-shadow: 0 0 16px rgba(31,182,212,0.15);
}
.btn-outline::after { content: none !important; display: none !important; }
.btn-outline:hover {
  box-shadow: 0 0 28px rgba(31,182,212,0.3);
}
.btn-outline::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.35s var(--ease-out);
  z-index: 0;
}
.btn-outline span {
  position: relative;
  z-index: 1;
}
.btn-outline:hover {
  color: var(--navy-deep);
  border-color: var(--cyan);
}
.btn-outline:hover::before {
  transform: scaleX(1);
}
.btn-outline-dark {
  border-color: var(--navy);
  color: var(--navy);
}
.btn-outline-dark:hover {
  background: var(--navy);
  color: var(--white);
  border-color: var(--navy);
}

/* ── S4 — Technology ── */
#technology {
  background: var(--white);
  padding: 6rem 0 9rem;
  color: var(--navy);
}
.tech-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 5rem;
}
.tech-eyebrow {
  font-size: 1.0rem !important;
  letter-spacing: 0.32em;
  color: var(--cyan-deep);
  margin-bottom: 1.25rem;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.75rem;
}
.tech-eyebrow::before, .tech-eyebrow::after {
  content: '';
  width: 20px; height: 1px;
  background: var(--cyan);
}
.tech-title {
  font-family: var(--font-cn-serif);
  font-size: clamp(1.8rem, 3.2vw, 2.6rem);
  font-weight: 500;
  line-height: 1.4;
  color: var(--navy);
  margin-bottom: 1.25rem;
  letter-spacing: 0.02em;
}
.tech-title em { font-style: normal; color: var(--cyan-deep); }
.tech-sub {
  font-size: 0.95rem;
  color: var(--ink-soft);
  line-height: 1.9;
  font-weight: 300;
  letter-spacing: 0.02em;
}
.tech-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.tech-feature {
  position: relative;
  overflow: hidden;
  border-radius: 6px;
  transition: transform 0.4s var(--ease-smooth), box-shadow 0.4s;
  background: var(--navy-deep);
}
.tech-feature:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 48px -16px rgba(14,30,58,0.25);
}
.tech-feature-img {
  width: 100%;
  aspect-ratio: 4 / 5;
  overflow: hidden;
  position: relative;
  background: var(--navy-deep);
}
.tech-feature-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--ease-smooth);
}
.tech-feature:hover .tech-feature-img img {
  transform: scale(1.05);
}
.tech-feature-overlay {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 3rem 2rem 2rem;
  background: linear-gradient(transparent, rgba(8,12,22,0.85) 30%, rgba(8,12,22,0.95));
  z-index: 1;
}
.tech-feature-name {
  font-family: var(--font-cn-serif);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--white);
  margin-bottom: 0.6rem;
  letter-spacing: 0.05em;
}
.tech-feature-copy {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.75);
  line-height: 1.8;
  font-weight: 300;
  letter-spacing: 0.02em;
}
.tech-feature-icons {
  display: flex;
  justify-content: space-around;
  padding: 1.5rem 1rem;
  background: var(--navy-deep);
  gap: 0.5rem;
}
.tech-icon {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: #A88E6A;
  background: rgba(255,255,255,0.04);
  border-radius: 8px;
  padding: 0.8rem 0.6rem 0.6rem;
  min-width: 80px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2), inset 0 1px 0 rgba(255,255,255,0.03);
  transition: transform 0.3s, box-shadow 0.3s;
}
.tech-icon:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0,0,0,0.3), inset 0 1px 0 rgba(255,255,255,0.05);
}
.tech-icon svg { stroke: #A88E6A; }
.tech-icon span {
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  color: rgba(255,255,255,0.65);
  font-weight: 400;
}

/* ── S5 — Mission ── */
#mission {
  background: var(--navy-deep);
  padding: 9rem 0;
}
.mission-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: center;
}
.mission-title {
  font-family: var(--font-cn-serif);
  font-size: clamp(2rem, 3.6vw, 3rem);
  font-weight: 500;
  line-height: 1.25;
  color: var(--on-navy);
  margin-bottom: 2rem;
  letter-spacing: 0.02em;
}
.mission-title em { font-style: normal; color: var(--cyan-light); }
.mission-body {
  font-size: 0.95rem;
  font-weight: 300;
  color: var(--on-navy-dim);
  line-height: 2;
  margin-bottom: 2rem;
  letter-spacing: 0.02em;
}
.mission-testimonial {
  border-left: 3px solid var(--cyan);
  padding: 1.5rem 1.75rem;
  background: rgba(31,182,212,0.06);
  margin: 2.5rem 0;
}
.mission-quote {
  font-family: var(--font-cn-serif);
  font-size: 1.1rem;
  color: var(--on-navy);
  line-height: 1.8;
  margin-bottom: 1rem;
  font-weight: 400;
  letter-spacing: 0.02em;
}
.mission-attr {
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  color: var(--cyan-light);
  font-style: normal;
}
.mission-link {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.3em;
  color: var(--cyan);
  text-decoration: none;
  padding: 0.75rem 0;
  border-bottom: 2px solid transparent;
  transition: all 0.35s var(--ease-out);
}
.mission-link:hover {
  gap: 1.3rem;
  color: var(--cyan-light);
  border-bottom-color: var(--cyan);
}
/* ── Mission 按钮 —— 深色底上的青色实心按钮 ── */
.btn-mission {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.9rem 2.2rem;
  background: var(--cyan);
  color: var(--navy-deep);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.3em;
  text-decoration: none;
  transition: background 0.3s, transform 0.2s, box-shadow 0.3s;
  box-shadow: 0 0 0 0 rgba(31,182,212,0.4);
}
.btn-mission:hover {
  background: var(--cyan-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(31,182,212,0.35);
}
.mission-visual { position: relative; }
.mission-image-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}
.mission-img {
  aspect-ratio: 1;
  position: relative;
  overflow: hidden;
  background: var(--navy);
}
.mission-img:first-child {
  grid-column: span 2;
  aspect-ratio: 16/9;
}
.mission-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transition: transform 0.6s var(--ease-smooth);
}
.mission-img:hover img { transform: scale(1.06); }
.mission-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 50%, rgba(8,12,22,0.55) 100%);
  pointer-events: none;
}
.mission-img-label {
  position: absolute;
  bottom: 0.75rem;
  left: 0.75rem;
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  color: var(--on-navy);
  background: rgba(8,12,22,0.75);
  padding: 0.35rem 0.7rem;
  z-index: 2;
}

/* ── S6 — CTA ── */
#cta {
  position: relative;
  padding: 11rem 0 10rem;
  background: var(--ivory);
  text-align: center;
  overflow: hidden;
}
.cta-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 50% at 50% 50%, rgba(31,182,212,0.1) 0%, transparent 70%),
    radial-gradient(ellipse 40% 30% at 50% 30%, rgba(14,30,58,0.04) 0%, transparent 60%);
}
.cta-horizon {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent 0%, var(--cyan) 30%, var(--cyan-light) 50%, var(--cyan) 70%, transparent 100%);
  opacity: 0.5;
}
.cta-eyebrow {
  font-size: 0.7rem;
  letter-spacing: 0.32em;
  color: var(--cyan-deep);
  margin-bottom: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}
.cta-eyebrow::before, .cta-eyebrow::after {
  content: '';
  width: 30px; height: 1px;
  background: var(--cyan);
}
.cta-title {
  font-family: var(--font-cn-serif);
  font-size: clamp(2.4rem, 5.2vw, 4.4rem);
  font-weight: 500;
  line-height: 1.25;
  color: var(--navy);
  max-width: 760px;
  margin: 0 auto 1.5rem;
  letter-spacing: 0.02em;
}
.cta-title em { font-style: normal; color: var(--cyan-deep); }
.cta-sub {
  font-size: 0.98rem;
  font-weight: 300;
  color: var(--ink-soft);
  margin-bottom: 3rem;
  letter-spacing: 0.05em;
}
.cta-actions {
  display: flex;
  justify-content: center;
  gap: 1.25rem;
  flex-wrap: wrap;
  margin-bottom: 2rem;
}
.cta-actions .btn-primary {
  background: var(--navy);
  color: var(--white);
}
.cta-actions .btn-primary:hover { background: var(--cyan-deep); }
.cta-fine {
  font-size: 0.74rem;
  letter-spacing: 0.15em;
  color: var(--ink-dim);
}