/* ShowStrong / XianChuang portal shared styles */

:root {
  --brand-yellow: #fed800;
  --brand-black: #050505;
  --brand-dark: #0a0a0a;
  --brand-gray: #1a1a1a;
  --text: #ffffff;
  --muted: rgba(255, 255, 255, 0.68);
  --border: rgba(255, 255, 255, 0.08);
}

html,
body {
  height: 100%;
}

body {
  background: var(--brand-black);
  color: var(--text);
  overflow-x: hidden;
  scroll-behavior: smooth;
}

/* --- subtle tech grid background helper --- */
.tech-grid {
  background-size: 50px 50px;
  background-image: linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
}

/* --- noise overlay --- */
.noise-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

/* --- custom cursor (desktop only) --- */
@media (hover: hover) and (pointer: fine) {
  body {
    cursor: none;
  }

  .cursor-ring,
  .cursor-dot {
    display: block;
  }
}

@media (hover: none), (pointer: coarse) {
  body {
    cursor: auto;
  }

  .cursor-ring,
  .cursor-dot {
    display: none;
  }
}

.cursor-ring {
  position: fixed;
  top: 0;
  left: 0;
  width: 36px;
  height: 36px;
  border: 1px solid rgba(254, 216, 0, 0.4);
  border-radius: 9999px;
  pointer-events: none;
  z-index: 10000;
  transform: translate(-50%, -50%);
  transition: width 0.25s, height 0.25s, background 0.25s, border-color 0.25s;
}

.cursor-dot {
  position: fixed;
  top: 0;
  left: 0;
  width: 6px;
  height: 6px;
  background: var(--brand-yellow);
  border-radius: 9999px;
  pointer-events: none;
  z-index: 10001;
  transform: translate(-50%, -50%);
}

body.hover-active .cursor-ring {
  width: 70px;
  height: 70px;
  background: rgba(254, 216, 0, 0.1);
  border-color: var(--brand-yellow);
}

/* --- glass card --- */
.glass-card {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  backdrop-filter: blur(12px);
  transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), background 0.35s, border-color 0.35s;
}

.glass-card:hover {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(254, 216, 0, 0.2);
  transform: translateY(-8px);
}

.glass-card.no-lift:hover {
  transform: none;
}

/* --- outlined headline helper --- */
.text-outline {
  -webkit-text-stroke: 1px rgba(255, 255, 255, 0.16);
  color: transparent;
}

/* --- marquee ribbon (dynamic strip / 跑马灯) --- */
.marquee-ribbon {
  --marquee-duration: 20s;
  position: relative;
  overflow: hidden;
  padding: 18px 0;
  background: var(--brand-yellow);
  color: #000;
  transform: skewY(-2deg);
  transform-origin: left;
  border-top: 4px solid #000;
  border-bottom: 4px solid #000;
  user-select: none;
}

.marquee-ribbon::before {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(135deg, rgba(0, 0, 0, 0.22) 0 10px, rgba(0, 0, 0, 0) 10px 22px);
  opacity: 0.25;
  pointer-events: none;
}

.marquee-ribbon__track {
  position: relative;
  display: flex;
  align-items: center;
  width: max-content;
  white-space: nowrap;
  will-change: transform;
  animation: ss-marquee var(--marquee-duration) linear infinite;
}

.marquee-ribbon__group {
  display: flex;
  align-items: center;
  gap: 3rem;
  padding-right: 3rem;
  flex-shrink: 0;
}

.marquee-ribbon__item {
  font-family: "Oswald", "Manrope", system-ui, -apple-system, "Segoe UI", sans-serif;
  font-weight: 900;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  font-size: clamp(22px, 3.8vw, 44px);
  line-height: 1;
}

.marquee-ribbon__sep {
  font-family: "Oswald", "Manrope", system-ui, -apple-system, "Segoe UI", sans-serif;
  font-weight: 900;
  opacity: 0.9;
  font-size: clamp(16px, 2.6vw, 26px);
  line-height: 1;
}

.marquee-ribbon:hover .marquee-ribbon__track {
  animation-play-state: paused;
}

@keyframes ss-marquee {
  from {
    transform: translate3d(0, 0, 0);
  }
  to {
    transform: translate3d(-50%, 0, 0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .marquee-ribbon {
    transform: none;
  }
  .marquee-ribbon__track {
    animation: none;
  }
}

/* --- lightbox --- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 20000;
  display: none;
}

.lightbox.open {
  display: block;
}

.lightbox__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.82);
  backdrop-filter: blur(8px);
}

.lightbox__panel {
  position: relative;
  width: min(1100px, calc(100vw - 32px));
  height: min(80vh, 860px);
  margin: 10vh auto 0;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(8, 8, 8, 0.7);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 30px 90px rgba(0, 0, 0, 0.6);
}

.lightbox__img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  background: radial-gradient(120% 120% at 0% 0%, rgba(254, 216, 0, 0.08) 0%, rgba(0, 0, 0, 0) 55%);
}

.lightbox__close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 9999px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(0, 0, 0, 0.6);
  color: #fff;
}

.lightbox__close:hover {
  border-color: rgba(254, 216, 0, 0.45);
  color: var(--brand-yellow);
}

/* --- form small helpers --- */
.form-error {
  color: #ffb4b4;
}

.form-success {
  color: #b2ffcf;
}

/* --- quality carousel (home) --- */
.quality-carousel {
  position: relative;
  height: 420px;
  overflow: hidden;
  isolation: isolate;
  touch-action: pan-y;
}

@media (min-width: 768px) {
  .quality-carousel {
    height: 540px;
  }
}

@media (min-width: 1024px) {
  .quality-carousel {
    height: 580px;
  }
}

.quality-carousel__track {
  height: 100%;
  display: flex;
  transition: transform 800ms cubic-bezier(0.22, 1, 0.36, 1);
  will-change: transform;
}

.quality-carousel__slide {
  position: relative;
  min-width: 100%;
  height: 100%;
  overflow: hidden;
}

.quality-carousel__layout {
  position: relative;
  z-index: 1;
  height: 100%;
  padding: 16px 16px 34px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

@media (min-width: 768px) {
  .quality-carousel__layout {
    flex-direction: row;
    gap: 16px;
    padding: 20px 20px 32px;
  }
}

.quality-carousel__media {
  position: relative;
  order: 1;
  flex: 1 1 auto;
  min-height: 0;
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(0, 0, 0, 0.28);
  overflow: hidden;
  display: grid;
  place-items: center;
}

@media (min-width: 768px) {
  .quality-carousel__media {
    order: 2;
  }
}

.quality-carousel__bg {
  position: absolute;
  inset: -40px;
  background-size: cover;
  background-position: center;
  filter: blur(24px) saturate(1.05) contrast(1.1);
  opacity: 0.35;
  transform: scale(1.08);
}

.quality-carousel__img {
  width: 100%;
  height: 100%;
  /* Show the whole poster without cropping */
  object-fit: contain;
  background: radial-gradient(120% 120% at 0% 0%, rgba(254, 216, 0, 0.06) 0%, rgba(0, 0, 0, 0) 55%), #070707;
  filter: saturate(0.96) contrast(1.06);
  transform: none;
  display: block;
}

.quality-carousel__headline {
  /* enable line clamp on small screens */
}

@media (max-width: 767.98px) {
  .quality-carousel__headline {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }
}

.quality-carousel__shade {
  position: absolute;
  inset: 0;
  background: radial-gradient(120% 120% at 0% 0%, rgba(254, 216, 0, 0.13) 0%, rgba(0, 0, 0, 0) 55%),
    linear-gradient(to top, rgba(0, 0, 0, 0.82), rgba(0, 0, 0, 0.25) 55%, rgba(0, 0, 0, 0.82));
}

.quality-carousel__bgword {
  position: absolute;
  right: 18px;
  top: 14px;
  font-weight: 800;
  letter-spacing: 0.2em;
  font-size: 42px;
  opacity: 0.35;
  pointer-events: none;
  user-select: none;
}

@media (min-width: 768px) {
  .quality-carousel__bgword {
    font-size: 64px;
    right: 22px;
    top: 18px;
  }
}

.quality-carousel__content {
  position: relative;
  order: 2;
  flex: 0 0 auto;
  max-width: 100%;
  padding: 16px 16px 14px;
  border-radius: 20px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: linear-gradient(135deg, rgba(0, 0, 0, 0.72), rgba(0, 0, 0, 0.42));
  backdrop-filter: blur(12px);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.55);
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 650ms ease, transform 650ms ease, border-color 300ms ease;
}

@media (min-width: 768px) {
  .quality-carousel__content {
    order: 1;
    flex: 0 0 40%;
    max-width: 480px;
    align-self: stretch;
  }
}

.quality-carousel__content::before {
  content: "";
  position: absolute;
  left: 0;
  top: 16px;
  bottom: 16px;
  width: 3px;
  border-radius: 9999px;
  background: linear-gradient(180deg, rgba(254, 216, 0, 0.95), rgba(254, 216, 0, 0.15));
  opacity: 0.9;
}

.quality-carousel__content > * {
  position: relative;
  padding-left: 10px;
}

.quality-carousel__slide.is-active .quality-carousel__content {
  opacity: 1;
  transform: translateY(0);
}

.quality-carousel__slide.is-active .quality-carousel__img {
  /* Keep motion without cropping: animate light/contrast, not transform */
  animation: qcGlow 6.5s ease-in-out both;
}

@keyframes qcGlow {
  0% {
    filter: saturate(0.96) contrast(1.06) brightness(0.92);
  }
  45% {
    filter: saturate(1) contrast(1.1) brightness(1.03);
  }
  100% {
    filter: saturate(0.96) contrast(1.06) brightness(0.92);
  }
}

.quality-carousel__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border-radius: 9999px;
  background: var(--brand-yellow);
  color: #000;
  font-weight: 800;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.quality-carousel__ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border-radius: 9999px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.9);
  font-weight: 800;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.quality-carousel__ghost:hover {
  border-color: rgba(254, 216, 0, 0.45);
  color: var(--brand-yellow);
}

.quality-carousel__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 9999px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  background: rgba(0, 0, 0, 0.45);
  color: rgba(255, 255, 255, 0.9);
  z-index: 3;
  backdrop-filter: blur(10px);
  transition: transform 200ms ease, border-color 200ms ease, color 200ms ease;
}

.quality-carousel__nav:hover {
  border-color: rgba(254, 216, 0, 0.55);
  color: var(--brand-yellow);
  transform: translateY(-50%) scale(1.06);
}

.quality-carousel__nav--prev {
  left: 14px;
}

.quality-carousel__nav--next {
  right: 14px;
}

.quality-carousel__dots {
  position: absolute;
  left: 22px;
  right: auto;
  width: min(480px, calc(100% - 44px));
  bottom: 12px;
  display: flex;
  gap: 10px;
  z-index: 3;
}

.quality-carousel__dot {
  width: 32px;
  height: 4px;
  border-radius: 9999px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.08);
  transition: background 250ms ease, border-color 250ms ease, transform 250ms ease;
}

.quality-carousel__dot.is-active {
  background: rgba(254, 216, 0, 0.65);
  border-color: rgba(254, 216, 0, 0.8);
  transform: scaleX(1.15);
}

.quality-carousel__progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: rgba(255, 255, 255, 0.06);
  z-index: 3;
}

.quality-carousel__bar {
  height: 100%;
  transform-origin: left;
  transform: scaleX(0);
  background: linear-gradient(90deg, rgba(254, 216, 0, 1), rgba(254, 216, 0, 0.35));
}

.quality-carousel__bar.is-animating {
  animation: qcProgress var(--qc-duration, 6500ms) linear forwards;
}

@keyframes qcProgress {
  0% {
    transform: scaleX(0);
  }
  100% {
    transform: scaleX(1);
  }
}

.quality-carousel__scan {
  position: absolute;
  inset: -1px;
  pointer-events: none;
  z-index: 2;
  border-radius: inherit;
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.quality-carousel__scan::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(254, 216, 0, 0.16), transparent);
  width: 45%;
  transform: translateX(-140%) skewX(-18deg);
  animation: qcScan 4.2s ease-in-out infinite;
  opacity: 0.75;
}

@keyframes qcScan {
  0% {
    transform: translateX(-140%) skewX(-18deg);
  }
  55%,
  100% {
    transform: translateX(220%) skewX(-18deg);
  }
}