/* ============================================================
   Hero — 主視覺
   ============================================================ */

.hero {
  position: relative;
  min-height: 80vh;
  min-height: 80dvh;
  padding-top: calc(var(--nav-h) + var(--sp-12));
  padding-bottom: var(--sp-20);
  display: flex;
  align-items: center;
  overflow: hidden;
}

/* 背景 grid pattern */
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(34,211,238,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34,211,238,0.06) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 40%, black 30%, transparent 80%);
  pointer-events: none;
  z-index: 0;
}

/* 背景漂浮光點 */
.hero::after {
  content: "";
  position: absolute;
  width: 600px; height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(34,211,238,0.18), transparent 60%);
  top: -200px; right: -100px;
  filter: blur(40px);
  pointer-events: none;
  z-index: 0;
  animation: hero-float 12s ease-in-out infinite;
}
@keyframes hero-float {
  0%, 100% { transform: translate(0, 0); }
  50%      { transform: translate(-30px, 40px); }
}

.hero-inner {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--container-narrow);
  margin-inline: auto;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-6);
}

.hero h1 {
  font-family: var(--ff-display);
  font-size: var(--fs-display);
  font-weight: var(--fw-black);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--c-text);
}
.hero h1 .accent {
  background: linear-gradient(135deg, var(--c-accent) 0%, #A5F3FC 50%, var(--c-warn) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  display: inline-block;
}

.hero-sub {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--c-text-2);
  max-width: 60ch;
  line-height: var(--lh-snug);
}

/* ---------- CTA 按鈕組 ---------- */
.hero-cta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--sp-3);
  margin-top: var(--sp-3);
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 14px var(--sp-6);
  border-radius: var(--r-pill);
  font-weight: var(--fw-semibold);
  font-size: 1rem;
  letter-spacing: 0.01em;
  transition: transform var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast),
              background var(--dur-fast),
              color var(--dur-fast);
  text-decoration: none;
  white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; }

.btn-primary {
  background: var(--c-line);
  color: #fff;
  box-shadow: 0 8px 24px rgba(6,199,85,0.40);
  position: relative;
}
.btn-primary:hover {
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(6,199,85,0.55);
}
.btn-primary::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow: 0 0 0 0 rgba(6,199,85,0.45);
  animation: pulse 2.4s ease-out infinite;
  pointer-events: none;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(6,199,85,0.45); }
  70%  { box-shadow: 0 0 0 14px rgba(6,199,85,0); }
  100% { box-shadow: 0 0 0 0 rgba(6,199,85,0); }
}

.btn-secondary {
  background: rgba(255,255,255,0.04);
  color: var(--c-text);
  border: 1px solid var(--c-border-soft);
  backdrop-filter: blur(8px);
}
.btn-secondary:hover {
  color: var(--c-accent);
  border-color: var(--c-border);
  background: rgba(34,211,238,0.06);
  transform: translateY(-2px);
}

/* ---------- 信任徽章 ---------- */
.hero-badges {
  margin-top: var(--sp-8);
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--sp-3) var(--sp-6);
  font-size: var(--fs-small);
  color: var(--c-muted);
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
}
.hero-badge svg {
  width: 18px; height: 18px;
  color: var(--c-accent);
  flex: 0 0 auto;
}
.hero-badge b {
  color: var(--c-text);
  font-weight: var(--fw-semibold);
}

/* ---------- 滾動提示 ---------- */
.hero-scroll {
  position: absolute;
  bottom: var(--sp-6);
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  font-size: var(--fs-xs);
  color: var(--c-muted);
  display: none;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-1);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}
.hero-scroll svg {
  width: 16px; height: 16px;
  animation: scroll-bob 2s ease-in-out infinite;
}
@keyframes scroll-bob {
  0%, 100% { transform: translateY(0); opacity: 0.5; }
  50%      { transform: translateY(6px); opacity: 1; }
}
@media (min-width: 768px) {
  .hero-scroll { display: flex; }
}