/* ============================================
   Z&A Electric — Global Website Styles
   ============================================ */

:root {
  --za-red: #B31B1B;
  --za-red-bright: #CC0000;
  --za-red-glow: rgba(179, 27, 27, 0.35);
  --gold: #D4A853;
  --gold-light: rgba(212, 168, 83, 0.6);

  --bg-dark: #0d0d0d;
  --bg-dark-mid: #1a1a1a;
  --bg-gray: #2a2a2a;
  --bg-light: #f5f5f7;
  --bg-white: #ffffff;

  --text-primary: #1d1d1f;
  --text-secondary: #6e6e73;
  --text-light: #f5f5f7;
  --text-muted: #86868b;

  --font-en: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-zh: 'PingFang SC', 'Microsoft YaHei', 'Noto Sans SC', 'Source Han Sans SC', sans-serif;
  --font-mono: ui-monospace, 'Cascadia Code', 'Segoe UI Mono', Consolas, monospace;
  --font-display: 'Cormorant Garamond', 'Noto Serif SC', 'Songti SC', 'SimSun', serif;

  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --ease-smooth: cubic-bezier(0.4, 0, 0.8, 1);

  --nav-height: 72px;
  --container-max: 1200px;
  --section-pad: clamp(80px, 12vh, 140px);
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-en), var(--font-zh);
  color: var(--text-primary);
  background: var(--bg-dark);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

body.has-hero-lens {
  background: #0d0d0d;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: min(100% - 48px, var(--container-max));
  margin-inline: auto;
}

/* ========== 导航栏 ========== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  transition: background 0.5s var(--ease-smooth),
              backdrop-filter 0.5s var(--ease-smooth),
              box-shadow 0.5s var(--ease-smooth);
}

.navbar--scrolled {
  background: rgba(26, 26, 26, 0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.06);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.navbar__logo {
  display: flex;
  align-items: center;
  transition: opacity 0.45s var(--ease-smooth),
              visibility 0.45s var(--ease-smooth),
              transform 0.45s var(--ease-smooth);
}

.brand-logo {
  display: block;
  height: auto;
  object-fit: contain;
}

.brand-logo--nav {
  height: 28px;
  width: auto;
}

.brand-logo--footer {
  height: 40px;
  border-radius: 0;
}

.navbar--scrolled .navbar__logo {
  transform: scale(0.97);
}

.navbar__nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.navbar__nav-label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.42);
  pointer-events: none;
  user-select: none;
}

.navbar--scrolled .navbar__nav-label {
  color: rgba(255, 255, 255, 0.45);
}

.navbar__link {
  position: relative;
  color: var(--text-light);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  padding-bottom: 4px;
}

.navbar__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--za-red);
  transition: width 0.35s var(--ease-smooth);
}

.navbar__link:hover::after {
  width: 100%;
}

.navbar__lang {
  display: flex;
  gap: 4px;
}

.navbar__actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.navbar__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  margin: 0;
  border: none;
  border-radius: 8px;
  background: transparent;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.navbar__toggle-bar {
  display: block;
  width: 20px;
  height: 1.5px;
  background: rgba(255, 255, 255, 0.88);
  border-radius: 1px;
  transition: transform 0.35s var(--ease-smooth), opacity 0.35s var(--ease-smooth), background 0.35s var(--ease-smooth);
}

.navbar.is-open .navbar__toggle-bar:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.navbar.is-open .navbar__toggle-bar:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.navbar.is-open .navbar__toggle-bar:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

.navbar__backdrop {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 999;
  background: rgba(0, 0, 0, 0.45);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s var(--ease-smooth);
}

.navbar.is-open .navbar__backdrop {
  opacity: 1;
  pointer-events: auto;
}

body.nav-open {
  overflow: hidden;
}

.lang-btn {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: rgba(255, 255, 255, 0.6);
  font-size: 0.7rem;
  font-weight: 600;
  padding: 4px 8px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.3s var(--ease);
  font-family: inherit;
}

.lang-btn:hover,
.lang-btn.active {
  color: #fff;
  border-color: var(--za-red);
  background: rgba(179, 27, 27, 0.2);
}

/* ========== 导航 · 首屏透镜模式 ========== */
.navbar--lens {
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.navbar--lens .navbar__inner {
  position: relative;
  max-width: none;
  padding-inline: clamp(24px, 5vw, 48px);
}

.navbar--lens .navbar__logo {
  position: absolute;
  left: clamp(24px, 5vw, 48px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-6px);
}

.navbar--lens .navbar__nav {
  gap: clamp(14px, 2vw, 24px);
  margin-left: auto;
  margin-right: clamp(120px, 14vw, 200px);
}

.navbar--lens .navbar__nav-label {
  color: rgba(255, 255, 255, 0.38);
}

.navbar--lens .navbar__link {
  font-family: var(--font-en), var(--font-zh);
  font-size: 0.8rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.72);
}

.navbar--lens .navbar__link::after {
  display: none;
}

.navbar--lens .navbar__link:hover {
  color: rgba(255, 255, 255, 0.95);
}

.navbar--lens .brand-logo {
  filter: brightness(0) invert(1);
  opacity: 0.9;
}

.navbar--lens .navbar__lang {
  position: static;
}

.navbar--lens .navbar__actions {
  position: absolute;
  right: clamp(16px, 4vw, 48px);
  top: 50%;
  transform: translateY(-50%);
  z-index: 2;
}

.navbar--lens .lang-btn {
  border: none;
  background: transparent;
  color: rgba(255, 255, 255, 0.45);
  padding: 4px 6px;
}

.navbar--lens .lang-btn:hover,
.navbar--lens .lang-btn.active {
  color: #fff;
  background: transparent;
  border: none;
}

/* ========== Hero 首屏 · 视频手电筒 ========== */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: #0d0d0d;
  overflow: hidden;
}

.hero--lens {
  isolation: isolate;
  cursor: none;
}

.hero__layers {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.hero__video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  pointer-events: none;
}

.hero__video--sharp {
  z-index: 0;
}

/* 方案 B：静态半透明遮罩光圈（无第二路视频、无实时 blur） */
.hero__veil,
.layer-blur {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  --x: 50%;
  --y: 50%;
  background:
    radial-gradient(
      circle 320px at var(--x, 50%) var(--y, 50%),
      transparent 0%,
      transparent 38%,
      rgba(12, 10, 8, 0.28) 62%,
      rgba(8, 6, 5, 0.55) 100%
    );
  transition: opacity 0.45s var(--ease-smooth);
}

.hero--lens.is-pressing .hero__veil,
.hero--lens.is-pressing .layer-blur {
  opacity: 0;
}

.hero--lens.is-pressing .hero__ui {
  opacity: 0;
  visibility: hidden;
}

.hero__grain {
  position: absolute;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  opacity: 0.08;
  mix-blend-mode: overlay;
  width: 200%;
  height: 200%;
  background: #a39e98;
  filter: url(#heroGrain);
}

.hero__top-fade {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: clamp(96px, 16vh, 148px);
  z-index: 4;
  pointer-events: none;
  background: linear-gradient(
    180deg,
    rgba(0, 0, 0, 0.5) 0%,
    rgba(0, 0, 0, 0.22) 50%,
    transparent 100%
  );
}

.hero__ui {
  position: relative;
  z-index: 10;
  text-align: center;
  padding: calc(var(--nav-height) + 24px) 32px 120px;
  max-width: min(100%, 1100px);
  pointer-events: none;
  transition: opacity 0.45s var(--ease-smooth), visibility 0.45s var(--ease-smooth);
}

.hero__ui .hero-button {
  pointer-events: auto;
  cursor: none;
}

.hero-logo {
  margin: 0 0 20px;
  line-height: 0;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
  animation-delay: 0.2s;
}

.brand-logo--hero {
  display: block;
  height: clamp(52px, 9vw, 84px);
  width: auto;
  margin: 0 auto;
  filter: brightness(0) invert(1);
  opacity: 0.94;
}

.hero-subtitle {
  font-family: var(--font-mono);
  font-size: clamp(0.65rem, 1.1vw, 0.78rem);
  font-weight: 300;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55);
  margin-bottom: 40px;
  white-space: nowrap;
  opacity: 0;
  transform: translateY(30px);
  animation: fadeInUp 1.2s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
  animation-delay: 0.45s;
}

.hero-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 120px;
  padding: 12px 28px;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 999px;
  font-family: var(--font-en), var(--font-zh);
  font-size: 10px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  text-decoration: none;
  color: rgba(255, 255, 255, 0.75);
  background: rgba(255, 255, 255, 0.04);
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 1s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards;
  animation-delay: 0.7s;
  transition: border-color 0.35s var(--ease-smooth), background 0.35s var(--ease-smooth), color 0.35s var(--ease-smooth);
}

.hero-button:hover {
  border-color: rgba(255, 255, 255, 0.85);
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.lens-cursor {
  position: fixed;
  inset: 0;
  z-index: 10001;
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.25s var(--ease-smooth);
}

.lens-cursor.is-active {
  opacity: 1;
}

.lens-cursor__dot,
.lens-cursor__ring {
  position: absolute;
  top: 0;
  left: 0;
  margin: -2px 0 0 -2px;
  border-radius: 50%;
  will-change: transform;
}

.lens-cursor__dot {
  width: 4px;
  height: 4px;
  background: #fff;
  box-shadow: 0 0 8px rgba(255, 255, 255, 0.6);
}

.lens-cursor__ring {
  width: 32px;
  height: 32px;
  margin: -16px 0 0 -16px;
  border: 1px solid rgba(255, 255, 255, 0.35);
}

body.has-hero-lens .hero--lens,
body.has-hero-lens .hero--lens * {
  cursor: none !important;
}

body.lens-cursor-on {
  cursor: none;
}

@media (max-width: 640px) {
  .hero__ui {
    padding-left: 20px;
    padding-right: 20px;
  }

  .brand-logo--hero {
    height: clamp(44px, 11vw, 60px);
  }

  .hero-subtitle {
    letter-spacing: 0.14em;
  }
}

@media (max-width: 768px) {
  .hero__veil,
  .layer-blur {
    background:
      radial-gradient(
        circle 220px at var(--x, 50%) var(--y, 50%),
        transparent 0%,
        transparent 36%,
        rgba(12, 10, 8, 0.3) 60%,
        rgba(8, 6, 5, 0.58) 100%
      );
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero-logo,
  .hero-subtitle,
  .hero-button {
    opacity: 1;
    transform: none;
    animation: none;
  }
}

.switch-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: pointer;
}

.switch-card--elevated {
  transform: translateY(-24px);
}

.switch-card__glow {
  position: absolute;
  inset: -30px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--za-red-glow) 0%, transparent 70%);
  opacity: 0;
  transition: opacity 0.6s var(--ease-smooth);
  pointer-events: none;
}

.switch-card:hover .switch-card__glow {
  opacity: 1;
}

.switch-card__label {
  margin-top: 40px;
  padding: 8px 20px;
  background: var(--za-red);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  border-radius: 2px;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.4s var(--ease-smooth), transform 0.4s var(--ease-spring);
  white-space: nowrap;
}

.switch-card:hover .switch-card__label {
  opacity: 1;
  transform: translateY(0);
}

/* ========== 开关组件（CSS 3D 模拟，可替换为图片） ========== */
.switch-unit {
  position: relative;
  perspective: 800px;
  filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.5));
  transition: filter 0.6s var(--ease-smooth);
}

.switch-card:hover .switch-unit,
.product-shot:hover .switch-unit {
  filter: drop-shadow(0 28px 50px rgba(0, 0, 0, 0.6));
}

.switch-unit__light {
  position: absolute;
  inset: -10px;
  width: calc(100% + 20px);
  height: calc(100% + 20px);
  pointer-events: none;
  z-index: 3;
}

.switch-unit__light .light-path {
  stroke-dasharray: 400;
  stroke-dashoffset: 400;
  transition: stroke-dashoffset 0.4s var(--ease-smooth);
}

.switch-card:hover .switch-unit__light .light-path,
.product-shot:hover .switch-unit__light .light-path {
  stroke-dashoffset: 0;
}

.switch-unit__body {
  position: relative;
  background: linear-gradient(145deg, #f8f8f8 0%, #e8e8e8 50%, #d0d0d0 100%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.9),
    0 4px 12px rgba(0, 0, 0, 0.3);
}

.switch-unit__body--square {
  width: 88px;
  height: 88px;
  border-radius: 4px;
}

.switch-unit__body--round {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: linear-gradient(145deg, #fafafa 0%, #ececec 100%);
}

.switch-unit__body--rect {
  width: 72px;
  height: 110px;
  border-radius: 4px;
  background: linear-gradient(145deg, #faf6f0 0%, #e8e0d4 100%);
}

.switch-unit__plate {
  position: absolute;
  inset: 8px;
  background: linear-gradient(180deg, #fff 0%, #f0f0f0 100%);
  border-radius: 2px;
  overflow: hidden;
  box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.08);
}

.switch-unit__plate--round {
  inset: 6px;
  border-radius: 50%;
}

.switch-unit__plate--wide {
  inset: 6px;
}

.switch-unit__rocker {
  position: absolute;
  left: 4px;
  right: 4px;
  top: 4px;
  height: calc(50% - 2px);
  background: linear-gradient(180deg, #ffffff 0%, #e5e5e5 100%);
  border-radius: 1px;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
  transform-origin: bottom center;
  transform: rotateX(0deg);
  transition: transform 0.5s var(--ease-spring), box-shadow 0.5s var(--ease-smooth);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
}

.switch-unit__rocker--round {
  inset: 8px;
  height: auto;
  border-radius: 50%;
  top: 8px;
  left: 8px;
  right: 8px;
  bottom: 8px;
}

.switch-unit__rocker--wide {
  left: 3px;
  right: 3px;
  height: calc(55% - 2px);
}

/* 按压行程差异 */
.switch-unit[data-travel="short"]:hover .switch-unit__rocker,
.switch-unit[data-travel="short"].is-on .switch-unit__rocker {
  transform: rotateX(12deg) translateY(2px);
}

.switch-unit[data-travel="medium"]:hover .switch-unit__rocker,
.switch-unit[data-travel="medium"].is-on .switch-unit__rocker,
.switch-unit__rocker--on {
  transform: rotateX(18deg) translateY(3px);
}

.switch-unit[data-travel="long"]:hover .switch-unit__rocker {
  transform: rotateX(24deg) translateY(5px);
}

.switch-unit__ring {
  position: absolute;
  inset: -2px;
  border-radius: 50%;
  border: 1px solid transparent;
  transition: border-color 0.4s var(--ease);
}

.switch-card:hover .switch-unit__ring,
.switch-unit__ring--on {
  border-color: var(--za-red);
  box-shadow: 0 0 12px var(--za-red-glow);
}

.switch-unit__indicator-ring {
  position: absolute;
  inset: -4px;
  border: 1px solid var(--za-red);
  border-radius: 6px;
  box-shadow: 0 0 16px var(--za-red-glow);
  animation: pulse-ring 3s ease-in-out infinite;
}

@keyframes pulse-ring {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

/* ========== 产品板块 ========== */
.section--active ~ .section:not(.section--certs) {
  opacity: 0.85;
}

.section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: var(--section-pad) 0;
  overflow: hidden;
  transition: opacity 0.6s var(--ease-smooth);
}

/* ========== 产品板块 · 极简展台 ========== */
.section--studio {
  overflow: hidden;
}

.section__surface {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.section__surface--europa {
  background-color: #E8DFD4;
  background-image:
    radial-gradient(ellipse 80% 60% at 85% 15%, rgba(196, 168, 138, 0.22) 0%, transparent 55%),
    radial-gradient(ellipse 50% 40% at 10% 90%, rgba(160, 130, 100, 0.12) 0%, transparent 50%),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 2px,
      rgba(120, 90, 60, 0.015) 2px,
      rgba(120, 90, 60, 0.015) 3px
    );
}

.section__surface--italia {
  background-color: #F3F3F1;
  background-image:
    radial-gradient(ellipse 70% 50% at 50% 0%, rgba(255, 255, 255, 0.9) 0%, transparent 60%),
    repeating-linear-gradient(
      135deg,
      transparent,
      transparent 3px,
      rgba(0, 0, 0, 0.012) 3px,
      rgba(0, 0, 0, 0.012) 4px
    );
}

.section__surface--america,
.section__surface--america-k {
  background-color: #3A3632;
  background-image:
    radial-gradient(ellipse 60% 50% at 20% 80%, rgba(90, 70, 55, 0.35) 0%, transparent 55%),
    radial-gradient(ellipse 40% 35% at 90% 20%, rgba(60, 50, 45, 0.4) 0%, transparent 50%),
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 4px,
      rgba(255, 255, 255, 0.012) 4px,
      rgba(255, 255, 255, 0.012) 5px
    );
}

.section__surface--america-h {
  background-color: #eceeef;
  background-image:
    radial-gradient(ellipse 70% 55% at 80% 20%, rgba(210, 218, 224, 0.7) 0%, transparent 55%),
    radial-gradient(ellipse 45% 40% at 15% 85%, rgba(255, 255, 255, 0.8) 0%, transparent 50%);
}

.section__props {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  overflow: hidden;
}

.section-prop {
  position: absolute;
  display: block;
  object-fit: cover;
  opacity: 0.2;
  filter: saturate(0.75) blur(0.3px);
  will-change: transform;
  transition: opacity 0.6s var(--ease-smooth);
}

.section-prop--europa-lamp {
  top: 6%;
  left: 3%;
  width: clamp(72px, 11vw, 130px);
  height: clamp(96px, 14vw, 170px);
  object-position: 25% 18%;
  border-radius: 4px;
}

.section-prop--europa-frame {
  bottom: 10%;
  right: 4%;
  width: clamp(88px, 13vw, 155px);
  height: clamp(110px, 16vw, 190px);
  object-position: 78% 62%;
  border-radius: 4px;
}

.section-prop--italia-vase {
  top: 12%;
  right: 6%;
  width: clamp(64px, 9vw, 110px);
  height: clamp(90px, 13vw, 150px);
  object-position: 70% 35%;
  opacity: 0.16;
}

.section-prop--italia-frame {
  bottom: 14%;
  left: 5%;
  width: clamp(80px, 11vw, 130px);
  height: clamp(100px, 14vw, 160px);
  object-position: 30% 55%;
  opacity: 0.14;
}

.section-prop--america-tiles {
  bottom: 8%;
  left: 3%;
  width: clamp(100px, 16vw, 180px);
  height: clamp(72px, 10vw, 120px);
  object-position: 15% 70%;
  opacity: 0.28;
  filter: saturate(1.1) blur(0.2px);
  border-radius: 6px;
}

.section-prop--america-accent {
  top: 10%;
  right: 5%;
  width: clamp(70px, 10vw, 120px);
  height: clamp(70px, 10vw, 120px);
  object-position: 85% 25%;
  opacity: 0.22;
  border-radius: 50%;
}

.product-stage {
  position: relative;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(28px, 5vw, 52px);
  border-radius: 6px;
}

.product-stage--europa {
  background: linear-gradient(165deg, rgba(255, 252, 248, 0.72) 0%, rgba(240, 232, 222, 0.55) 100%);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.9) inset,
    0 28px 64px rgba(90, 70, 50, 0.1),
    0 4px 16px rgba(90, 70, 50, 0.06);
}

.product-stage--italia {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.85) 0%, rgba(245, 245, 243, 0.6) 100%);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 1) inset,
    0 24px 56px rgba(0, 0, 0, 0.06),
    0 2px 12px rgba(0, 0, 0, 0.04);
  min-height: clamp(280px, 45vh, 520px);
}

.product-stage--america {
  padding: clamp(24px, 4vw, 40px) clamp(20px, 3vw, 32px);
}

.product-stage--america-h {
  background:
    linear-gradient(165deg, rgba(248, 248, 246, 0.92) 0%, rgba(228, 230, 232, 0.78) 100%);
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.9) inset,
    0 0 0 1px rgba(180, 188, 196, 0.45),
    0 24px 56px rgba(40, 48, 56, 0.12);
}

.product-stage--america-k {
  background:
    linear-gradient(165deg, rgba(92, 72, 58, 0.72) 0%, rgba(58, 46, 38, 0.55) 100%);
  box-shadow:
    0 1px 0 rgba(255, 235, 210, 0.08) inset,
    0 0 0 1px rgba(70, 52, 40, 0.55),
    0 28px 64px rgba(0, 0, 0, 0.28);
}

.section--europa .section__content {
  color: #2C2419;
}

.section--europa .section__title {
  color: #1A1510;
}

.section--europa .section__desc {
  color: rgba(44, 36, 25, 0.72);
}

.section--europa .stat__value {
  color: #1A1510;
}

.section--europa .stat__label {
  color: rgba(44, 36, 25, 0.5);
}

.section--italia .section__content,
.section--italia .italia-showcase__header {
  color: #1D1D1F;
}

.section--italia .section__title,
.section--italia .italia-showcase__header .section__title {
  color: #1D1D1F;
  text-shadow: none;
}

.section--italia .section__desc,
.section--italia .section__desc--italia {
  color: rgba(29, 29, 31, 0.68);
}

.section--italia .stat__value {
  color: #1D1D1F;
}

.section--italia .stat__label {
  color: rgba(29, 29, 31, 0.5);
}

.section--america-k .section__content {
  color: var(--text-light);
}

.section--america-k .section__title {
  color: #f5f0ea;
}

.section--america-k .section__desc {
  color: rgba(245, 240, 234, 0.72);
}

.section--america-k .stat__value {
  color: #f5f0ea;
}

.section--america-k .stat__label {
  color: rgba(245, 240, 234, 0.5);
}

.section--america-h .section__content {
  color: #1d1d1f;
}

.section--america-h .section__title {
  color: #141414;
}

.section--america-h .section__desc {
  color: rgba(29, 29, 31, 0.68);
}

.section--america-h .stat__value {
  color: #141414;
}

.section--america-h .stat__label {
  color: rgba(29, 29, 31, 0.5);
}

.section--america-h .section__tag {
  color: rgba(20, 24, 28, 0.45);
}

.section--america-k .section__tag {
  color: rgba(255, 236, 214, 0.55);
}

.section__bg {
  display: none;
}

.section__overlay {
  display: none;
}

.section__bg-img {
  display: none;
}

/* 图片加载失败时的备用底色（保留兼容） */
.section--europa .section__bg { background-color: #E8DFD4; }
.section--italia .section__bg--marble { background-color: #F3F3F1; }
.section--america .section__bg { background-color: #3A3632; }

/* 滚动放大目标（Font Barcelona 风格） */
[data-scroll-zoom-target] {
  will-change: transform;
  transform-origin: center center;
}

.product-shot[data-scroll-zoom-target] {
  overflow: visible;
}

.section__overlay--italia {
  display: none;
}

.section__inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 4fr 6fr;
  gap: clamp(32px, 5vw, 80px);
  align-items: center;
}

.section__inner--reverse {
  grid-template-columns: 6fr 4fr;
}

.section__inner--reverse .section__content {
  order: 2;
}

.section__inner--reverse .section__visual {
  order: 1;
}

.section__inner--center {
  grid-template-columns: 1fr;
  text-align: center;
  max-width: 800px;
}

.section__content {
  color: var(--text-light);
}

.section__tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--za-red);
  margin-bottom: 16px;
}

.section__title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.section__desc {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.75);
  max-width: 420px;
  margin-bottom: 32px;
  line-height: 1.8;
}

.section__stats {
  display: flex;
  flex-wrap: wrap;
  gap: 24px 40px;
  margin-bottom: 32px;
}

.section__content--center .section__stats {
  justify-content: center;
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat__value {
  font-size: 1.25rem;
  font-weight: 600;
  color: #fff;
}

.stat__label {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.5);
}

.section__link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--za-red-bright);
  font-weight: 600;
  font-size: 0.95rem;
  transition: transform 0.35s var(--ease-smooth), gap 0.35s var(--ease-smooth);
}

.section__link::after {
  content: '→';
  opacity: 0;
  transform: translateX(-8px);
  transition: opacity 0.35s var(--ease-smooth), transform 0.35s var(--ease-smooth);
}

.section__link:hover {
  transform: translateX(4px);
}

.section__link:hover::after {
  opacity: 1;
  transform: translateX(0);
}

/* 产品图 */
.product-shot {
  position: relative;
  width: 100%;
  overflow: visible;
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
}

.product-shot--europa {
  aspect-ratio: 1;
  max-width: 360px;
  margin-inline: auto;
}

.product-shot__img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 18px 36px rgba(60, 45, 30, 0.18));
}

.product-shot__placeholder {
  display: none;
  width: 100%;
  height: 100%;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.2);
}

.product-shot__placeholder--euro {
  background: linear-gradient(135deg, #3d2b1f, #5c4033);
}

.product-shot__placeholder--italia {
  background: linear-gradient(160deg, #f0f0f0, #d0d0d0);
}

.product-shot__placeholder--america {
  background: linear-gradient(135deg, #1e4d7a, #c45c26);
}

/* ========== H / K 美标 · 与欧/意同级独立板块 ========== */
.section--america .section__visual {
  width: 100%;
  position: relative;
}

.section-prop--america-h {
  filter: brightness(1.25) saturate(0.55) contrast(0.95);
  opacity: 0.22;
}

.section-prop--america-k {
  filter: sepia(0.35) saturate(1.1) brightness(0.85);
  opacity: 0.35;
}

.america-showcase {
  position: relative;
  z-index: 1;
  width: 100%;
  min-height: clamp(340px, 48vh, 480px);
}

/* 胶囊按钮 · 通用 */
.america-capsules__btn {
  border: 1px solid rgba(255, 255, 255, 0.38);
  padding: 10px 22px;
  font-family: var(--font-en), var(--font-zh);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.78);
  background: rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  cursor: pointer;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  transition:
    background 0.35s var(--ease-smooth),
    color 0.35s var(--ease-smooth),
    border-color 0.35s var(--ease-smooth),
    box-shadow 0.35s var(--ease-smooth),
    transform 0.35s var(--ease-smooth);
}

.section--america-h .america-capsules__btn {
  border-color: rgba(40, 48, 56, 0.18);
  color: rgba(20, 24, 28, 0.72);
  background: rgba(255, 255, 255, 0.55);
}

.america-capsules__btn:hover:not(.is-active) {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.55);
  color: #fff;
}

.section--america-h .america-capsules__btn:hover:not(.is-active) {
  background: rgba(255, 255, 255, 0.85);
  border-color: rgba(40, 48, 56, 0.28);
  color: #141414;
}

.america-capsules__btn.is-active {
  background: var(--za-red);
  border-color: var(--za-red);
  color: #fff;
  box-shadow:
    0 6px 22px rgba(179, 27, 27, 0.48),
    0 2px 8px rgba(0, 0, 0, 0.28);
}

.america-capsules__btn.is-active:hover {
  background: var(--za-red-bright);
  border-color: var(--za-red-bright);
}

/* 型号 · 右侧悬浮 */
.america-capsules--models {
  position: absolute;
  right: clamp(0px, 2vw, 12px);
  top: 50%;
  transform: translateY(-50%);
  z-index: 12;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.america-capsules--models .america-capsules__btn {
  min-width: 64px;
  padding: 11px 20px;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-align: center;
}

.america-stage {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: clamp(300px, 42vw, 440px);
  width: 100%;
  padding: clamp(40px, 6vh, 56px) clamp(88px, 12vw, 120px) clamp(24px, 4vh, 40px);
}

.america-stage__wall {
  position: relative;
  z-index: 1;
  width: min(75%, 280px);
  height: clamp(220px, 32vw, 320px);
  border-radius: 2px;
}

.section--america-h .america-stage__wall,
.section--america-k .america-stage__wall {
  background: transparent;
  box-shadow: none;
  filter: none;
}

.america-switch-display {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.america-switch-slide {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: scale(0.92) translateY(10px);
  transition: opacity 0.55s var(--ease-smooth), transform 0.65s var(--ease-spring);
  pointer-events: none;
}

.america-switch-slide.is-active {
  opacity: 1;
  transform: scale(1) translateY(0);
  pointer-events: auto;
  z-index: 2;
}

.america-switch-slide.is-leaving {
  opacity: 0;
  transform: scale(1.03) translateY(-6px);
  z-index: 1;
}

.america-switch-slide__img {
  display: block;
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 16px 32px rgba(0, 0, 0, 0.35));
}

.america-switch-slide__css {
  display: none;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
}

.product-shot--italia {
  max-width: 320px;
  margin-inline: auto;
  aspect-ratio: 1;
}

/* ========== 意大利板块 · Font Barcelona 风格展示 ========== */
.section--showcase {
  min-height: 100vh;
  padding: calc(var(--nav-height) + 40px) 24px var(--section-pad);
  align-items: stretch;
}

.italia-showcase {
  position: relative;
  z-index: 2;
  width: min(100%, 960px);
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: calc(100vh - var(--nav-height) - 80px);
}

.italia-showcase__header {
  text-align: center;
  margin-bottom: clamp(24px, 4vh, 48px);
  max-width: 640px;
  width: 100%;
}

.italia-showcase__header .section__tag {
  font-size: 0.8rem;
  margin-bottom: 12px;
}

.italia-showcase__header .section__title {
  margin-bottom: 0;
  color: #fff;
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.35);
}

.italia-showcase__stage {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-height: clamp(280px, 45vh, 520px);
  margin-bottom: clamp(32px, 5vh, 56px);
}

.italia-switch-display {
  position: relative;
  width: clamp(200px, 32vw, 360px);
  height: clamp(200px, 32vw, 360px);
}

.italia-switch-slide {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: scale(0.88) translateY(24px);
  transition: opacity 0.65s var(--ease-smooth),
              transform 0.75s var(--ease-spring);
  pointer-events: none;
}

.italia-switch-slide.is-active {
  opacity: 1;
  transform: scale(1) translateY(0);
  pointer-events: auto;
  z-index: 2;
}

.italia-switch-slide.is-leaving {
  opacity: 0;
  transform: scale(1.06) translateY(-12px);
  z-index: 1;
}

.italia-switch-slide__glow {
  position: absolute;
  inset: -20%;
  background: radial-gradient(circle, var(--za-red-glow) 0%, transparent 65%);
  opacity: 0;
  transition: opacity 0.5s var(--ease-smooth);
  pointer-events: none;
}

.italia-switch-slide.is-active .italia-switch-slide__glow {
  opacity: 0.12;
}

.italia-switch-slide__img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  filter: drop-shadow(0 24px 48px rgba(0, 0, 0, 0.18));
}

.italia-switch-slide__css {
  display: none;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
}

/* 意大利舞台 · 大号开关 */
.switch-unit--hero {
  transform: scale(2.2);
  filter: drop-shadow(0 24px 48px rgba(0, 0, 0, 0.2));
}

.switch-unit--hero:hover .switch-unit__rocker {
  transform: rotateX(12deg) translateY(2px);
}

.switch-unit__body--bianco {
  background: linear-gradient(145deg, #fafafa 0%, #ececec 100%);
}

.switch-unit__body--nero {
  background: linear-gradient(145deg, #3a3a3a 0%, #0a0a0a 100%);
}

.switch-unit__body--sand {
  background: linear-gradient(145deg, #e8dcc8 0%, #c4b08a 100%);
}

.switch-unit__body--grigio {
  background: linear-gradient(145deg, #b0b0b0 0%, #7a7a7a 100%);
}

.switch-unit__body--soft-square {
  width: 80px;
  height: 80px;
  border-radius: 12px;
}

.switch-unit__plate--soft-square {
  border-radius: 10px;
}

.switch-unit__rocker--soft-square {
  border-radius: 8px;
  inset: 6px;
  height: auto;
  bottom: 6px;
  top: 6px;
}

.switch-unit__body--triple {
  width: 56px;
  height: 168px;
  border-radius: 6px;
}

.switch-unit__plate--triple {
  inset: 5px;
}

.switch-unit__rocker--triple {
  left: 3px;
  right: 3px;
  top: 4px;
  height: calc(50% - 3px);
}

.switch-unit__rocker--dark {
  background: linear-gradient(180deg, #555 0%, #333 100%);
}

/* 款式选择器 + 底部文案 · 透明，直接叠在背景图上 */
.italia-showcase__panel {
  width: 100%;
  max-width: 820px;
  padding: 0;
  background: none;
  border: none;
  box-shadow: none;
}

.italia-picker {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 0;
  width: 100%;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  margin-bottom: clamp(28px, 3vh, 36px);
}

.italia-picker__btn {
  flex: 1;
  min-width: 120px;
  background: none;
  border: none;
  padding: 14px 12px;
  cursor: pointer;
  text-align: center;
  font-family: inherit;
  color: rgba(29, 29, 31, 0.65);
  transition: color 0.35s var(--ease-smooth), background 0.35s var(--ease-smooth);
  position: relative;
  border-radius: 8px;
}

.italia-picker__btn:hover {
  color: #1D1D1F;
  background: rgba(0, 0, 0, 0.04);
}

.italia-picker__btn.is-active {
  color: #1D1D1F;
  background: rgba(0, 0, 0, 0.05);
}

.italia-picker__name {
  display: block;
  font-size: clamp(1rem, 2vw, 1.15rem);
  font-weight: 700;
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}

.italia-picker__sub {
  display: block;
  font-size: clamp(0.85rem, 1.6vw, 0.95rem);
  font-weight: 500;
  letter-spacing: 0.04em;
  color: rgba(29, 29, 31, 0.5);
}

.italia-picker__btn.is-active .italia-picker__name {
  color: var(--za-red);
}

.italia-picker__btn.is-active .italia-picker__sub {
  color: rgba(29, 29, 31, 0.72);
}

.italia-picker__line {
  position: absolute;
  bottom: -1px;
  left: 0;
  height: 2px;
  width: 0;
  background: var(--za-red);
  transition: left 0.45s var(--ease-smooth), width 0.45s var(--ease-smooth);
}

.italia-showcase__footer {
  text-align: center;
  width: 100%;
}

.italia-showcase__footer .section__stats {
  justify-content: center;
  gap: 32px 48px;
  margin-bottom: 28px;
}

.section__desc--italia {
  color: rgba(29, 29, 31, 0.68);
  font-size: clamp(1.05rem, 2vw, 1.2rem);
  font-weight: 500;
  line-height: 1.85;
  max-width: 560px;
  margin-inline: auto;
  margin-bottom: 32px;
  text-shadow: none;
}

.italia-showcase__footer .stat__value {
  color: #1D1D1F;
  font-size: clamp(1.05rem, 2vw, 1.2rem);
  font-weight: 700;
}

.italia-showcase__footer .stat__label {
  color: rgba(29, 29, 31, 0.5);
  font-size: 0.85rem;
  font-weight: 500;
}

.section__link--italia {
  font-size: clamp(1rem, 2vw, 1.1rem);
  color: var(--za-red);
  text-shadow: none;
}

.section__visual--center {
  margin-bottom: 48px;
}

/* 入场动画 */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s var(--ease-smooth), transform 0.8s var(--ease-spring);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal--scale {
  transform: scale(0.85) translateY(20px);
}

.reveal--scale.is-visible {
  transform: scale(1) translateY(0);
}

/* ========== 认证板块 ========== */
.section--certs {
  background: var(--bg-light);
  min-height: auto;
  padding: var(--section-pad) 0;
}

.certs__title {
  text-align: center;
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 600;
  margin-bottom: 60px;
  letter-spacing: -0.02em;
}

.certs__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
  max-width: 720px;
  margin-inline: auto;
  margin-bottom: 48px;
}

.cert-card {
  background: var(--bg-white);
  border: 1px solid #e0e0e0;
  border-radius: 12px;
  padding: 40px 32px;
  text-align: center;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.04);
  transition: transform 0.4s var(--ease-spring), box-shadow 0.4s var(--ease-smooth);
}

.cert-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.1);
}

.cert-card__icon {
  width: 80px;
  height: 80px;
  margin: 0 auto 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.cert-card__icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.cert-card__fallback {
  font-size: 2rem;
  font-weight: 700;
  color: #888;
  letter-spacing: 0.05em;
}

.cert-card:hover .cert-card__fallback {
  animation: cert-shimmer 0.6s var(--ease-smooth);
}

@keyframes cert-shimmer {
  0% { color: #888; text-shadow: none; }
  50% { color: var(--za-red); text-shadow: 0 0 20px var(--za-red-glow); }
  100% { color: #888; text-shadow: none; }
}

.cert-card__name {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.cert-card__region {
  font-size: 0.85rem;
  color: var(--za-red);
  font-weight: 600;
  margin-bottom: 12px;
}

.cert-card__desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.certs__footnote {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 48px;
}

.certs__contact {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.75em 1.25em;
  padding-top: 48px;
  border-top: 1px solid #e0e0e0;
  font-size: clamp(1rem, 2.5vw, 1.35rem);
  letter-spacing: 0.06em;
}

.certs__contact-label {
  font-weight: 500;
  color: var(--text-primary);
}

.certs__contact-link {
  color: var(--text-primary);
  font-weight: 500;
  transition: color 0.25s var(--ease-smooth);
}

.certs__contact-link:hover {
  color: var(--za-red);
}

/* ========== 全球客户 · 点阵地球 ========== */
.clients-globe {
  position: relative;
  z-index: 2;
  min-height: auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: clamp(18px, 3vh, 28px);
  padding: clamp(40px, 6vh, 72px) 16px clamp(48px, 7vh, 80px);
  background: #f5f5f5;
  overflow: hidden;
}

.clients-globe__title {
  order: 1;
  margin: 0;
  width: 100%;
  max-width: 36rem;
  text-align: center;
  font-family: var(--font-display);
  font-size: clamp(1.55rem, 3.4vw, 2.35rem);
  font-weight: 500;
  letter-spacing: 0.18em;
  line-height: 1.45;
  color: #1a1a1a;
}

html[lang='zh-CN'] .clients-globe__title,
html[lang^='zh'] .clients-globe__title {
  letter-spacing: 0.34em;
  font-weight: 600;
}

.clients-globe__stage {
  position: relative;
  width: min(100%, 640px);
  height: clamp(340px, 52vh, 520px);
  touch-action: none;
  cursor: grab;
  order: 0;
}

.clients-globe__stage.is-dragging {
  cursor: grabbing;
}

.clients-globe__stage canvas {
  width: 100% !important;
  height: 100% !important;
  display: block;
}

.clients-globe.is-error .clients-globe__stage::after {
  content: '';
  position: absolute;
  inset: 0;
}

@media (max-width: 700px) {
  .clients-globe {
    padding: 40px 12px 32px;
  }

  .clients-globe__stage {
    width: min(100%, 440px);
    height: clamp(300px, 72vw, 420px);
  }
}

/* ========== 材质系列 · 3D 产品画廊 ========== */
.product-gallery {
  --product-gallery-card-size: clamp(200px, 28vw, 320px);
  --product-gallery-bg: #F5F5F5;
  --product-gallery-card: #EBEBEB;
  --product-gallery-ink: #111111;
  --product-gallery-muted: #6B6B6B;
  --product-gallery-line: #D4D4D4;

  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: var(--product-gallery-bg);
  color: var(--product-gallery-ink);
  font-family: var(--font-mono);
  position: relative;
  z-index: 2;
}

.product-gallery__stage {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: calc(var(--nav-height) + 40px) 24px 64px;
  min-height: 100vh;
  min-height: 100dvh;
}

.gallery-viewport {
  width: 100%;
  max-width: 1200px;
  height: clamp(280px, 52vh, 520px);
  perspective: 1200px;
  perspective-origin: 50% 50%;
  cursor: grab;
  touch-action: pan-y;
  user-select: none;
  -webkit-user-select: none;
}

.gallery-viewport.gallery-viewport--touch,
.gallery-viewport.is-dragging {
  touch-action: none;
  -webkit-touch-callout: none;
}

.gallery-viewport.gallery-viewport--touch {
  cursor: grab;
}

.gallery-viewport.is-dragging {
  cursor: grabbing;
}

.gallery-track {
  position: relative;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
}

.gallery-card {
  position: absolute;
  top: 50%;
  left: 50%;
  width: var(--product-gallery-card-size);
  height: var(--product-gallery-card-size);
  margin-left: calc(var(--product-gallery-card-size) / -2);
  margin-top: calc(var(--product-gallery-card-size) / -2);
  transform-style: preserve-3d;
  will-change: transform, opacity;
}

.gallery-card__inner {
  width: 100%;
  height: 100%;
  aspect-ratio: 1 / 1;
  background: var(--product-gallery-card);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-radius: 14px;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.85) inset,
    0 12px 40px rgba(0, 0, 0, 0.08);
}

.gallery-card__inner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  pointer-events: none;
  user-select: none;
}

.gallery-card__plate {
  width: 72%;
  height: 72%;
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.mat-bianco { background: linear-gradient(145deg, #f8f8f6, #e8e8e4); }
.mat-nero { background: linear-gradient(145deg, #2a2a2a, #111); }
.mat-sabbia { background: linear-gradient(145deg, #d4c4a8, #b8a88c); }
.mat-grigio { background: linear-gradient(145deg, #9a9a9a, #6e6e6e); }
.mat-bronze { background: linear-gradient(145deg, #c4956a, #8b6914); }
.mat-marmo { background: linear-gradient(145deg, #f0ece8, #d8d0c8); }
.mat-graphite { background: linear-gradient(145deg, #4a4a4a, #2d2d2d); }
.mat-avorio { background: linear-gradient(145deg, #f5f0e6, #e8dcc8); }

.product-gallery__meta {
  margin-top: 32px;
  font-size: 0.75rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--product-gallery-muted);
}

.product-gallery__material {
  color: var(--product-gallery-ink);
  font-weight: 500;
}

.product-gallery__sep {
  margin: 0 0.5em;
  opacity: 0.4;
}

/* ========== 页脚 ========== */
.footer {
  background: var(--bg-dark-mid);
  color: var(--text-light);
  padding: 80px 0 0;
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 60px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer__logo {
  display: inline-block;
}

.footer__intro {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.5);
  line-height: 1.7;
  max-width: 260px;
}

.footer__heading {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 20px;
  color: rgba(255, 255, 255, 0.9);
}

.footer__links {
  list-style: none;
}

.footer__links li {
  margin-bottom: 12px;
}

.footer__links a {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.5);
  transition: color 0.3s var(--ease);
}

.footer__links a:hover {
  color: #fff;
}

.footer__cta {
  display: inline-block;
  margin-top: 20px;
  padding: 12px 28px;
  background: var(--za-red);
  color: #fff;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 4px;
  transition: background 0.3s var(--ease), transform 0.3s var(--ease-spring);
}

.footer__cta:hover {
  background: var(--za-red-bright);
  transform: translateY(-2px);
}

.footer__bottom {
  padding: 32px 0;
  text-align: center;
}

.footer__copy {
  font-size: 0.75rem;
  color: rgba(255, 255, 255, 0.35);
  margin-bottom: 10px;
}

.footer__beian {
  margin-bottom: 16px;
  font-size: 0.72rem;
  letter-spacing: 0.02em;
}

.footer__beian a {
  color: rgba(255, 255, 255, 0.32);
  text-decoration: none;
  transition: color 0.25s var(--ease-smooth);
}

.footer__beian a:hover {
  color: rgba(255, 255, 255, 0.55);
}

.footer__flags {
  display: flex;
  justify-content: center;
  gap: 16px;
  font-size: 1.5rem;
}

/* ========== 响应式 ========== */
@media (max-width: 900px) {
  .navbar__toggle {
    display: flex;
  }

  .navbar__nav {
    position: fixed;
    top: 0;
    right: 0;
    z-index: 1001;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    width: min(88vw, 320px);
    height: 100dvh;
    margin: 0;
    padding: calc(var(--nav-height) + 24px) 28px 32px;
    background: rgba(22, 20, 18, 0.97);
    backdrop-filter: blur(24px) saturate(160%);
    -webkit-backdrop-filter: blur(24px) saturate(160%);
    box-shadow: -8px 0 40px rgba(0, 0, 0, 0.28);
    transform: translateX(105%);
    transition: transform 0.45s cubic-bezier(0.16, 1, 0.3, 1);
    visibility: hidden;
    pointer-events: none;
  }

  .navbar.is-open .navbar__nav {
    transform: translateX(0);
    visibility: visible;
    pointer-events: auto;
  }

  .navbar.is-open .navbar__backdrop {
    display: block;
  }

  .navbar__link {
    font-size: 1.05rem;
    padding: 16px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    color: rgba(255, 255, 255, 0.92);
  }

  .navbar__nav-label {
    padding: 4px 0 12px;
    font-size: 0.62rem;
    letter-spacing: 0.16em;
    color: rgba(255, 255, 255, 0.38);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .navbar__link::after {
    display: none;
  }

  .navbar--lens .navbar__link {
    color: rgba(255, 255, 255, 0.92);
    font-size: 1.05rem;
    letter-spacing: 0.04em;
  }

  .navbar--lens .navbar__nav {
    display: flex;
    margin: 0;
  }

  .navbar--scrolled .navbar__toggle-bar,
  .navbar:not(.navbar--lens) .navbar__toggle-bar {
    background: rgba(255, 255, 255, 0.9);
  }

  .navbar--lens .navbar__toggle-bar {
    background: rgba(255, 255, 255, 0.88);
  }

  .navbar--scrolled .navbar__toggle:hover,
  .navbar__toggle:focus-visible {
    background: rgba(255, 255, 255, 0.08);
  }

  .hero__switches {
    flex-direction: column;
    align-items: center;
    gap: 48px;
  }

  .switch-card--elevated {
    transform: none;
  }

  .section__inner,
  .section__inner--reverse {
    grid-template-columns: 1fr;
  }

  .section__inner--reverse .section__content,
  .section__inner--reverse .section__visual {
    order: unset;
  }

  .section__overlay,
  .section--italia .section__overlay--italia {
    display: none;
  }

  .section-prop {
    opacity: 0.12;
  }

  .certs__grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin-inline: auto;
  }

  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .italia-picker__btn {
    min-width: calc(50% - 4px);
    flex: 0 0 calc(50% - 4px);
    padding: 12px 8px;
  }

  .america-capsules--models {
    right: auto;
    left: 50%;
    top: auto;
    bottom: 0;
    transform: translateX(-50%);
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    max-width: min(100%, 320px);
    gap: 8px;
  }

  .america-stage {
    padding: clamp(40px, 6vh, 56px) 16px clamp(64px, 9vh, 80px);
  }

  .america-capsules--models .america-capsules__btn {
    min-width: 56px;
    padding: 9px 16px;
    font-size: 0.75rem;
  }
}

@media (max-width: 520px) {
  .footer__grid {
    grid-template-columns: 1fr;
  }
}

/* ========== 刮刮乐面板（欧洲板块） ========== */
.section--europa-scratch .section__visual {
  width: 100%;
}

.scratch-panel {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  min-height: clamp(280px, 42vh, 520px);
  border-radius: 8px;
  overflow: hidden;
  isolation: isolate;
  background: #e8dfd4;
  box-shadow:
    0 1px 0 rgba(255, 255, 255, 0.08) inset,
    0 28px 64px rgba(90, 70, 50, 0.14),
    0 4px 16px rgba(90, 70, 50, 0.08);
}

.scratch-panel__reveal {
  position: absolute;
  inset: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

.scratch-panel__wall {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(255, 252, 248, 0.35) 0%, rgba(232, 223, 212, 0.15) 100%),
    url('assets/images/sections/italia-marble.jpg') center / cover no-repeat;
}

.scratch-panel__switch-img {
  position: relative;
  z-index: 2;
  width: min(52%, 300px);
  height: auto;
  object-fit: contain;
  filter: drop-shadow(0 22px 40px rgba(0, 0, 0, 0.35));
  transform: scale(1);
  transition: transform 0.65s cubic-bezier(0.16, 1, 0.3, 1);
}

.scratch-panel.is-complete .scratch-panel__switch-img {
  transform: scale(1.06);
}

.scratch-panel__switch-fallback {
  display: none;
  position: relative;
  z-index: 2;
  align-items: center;
  justify-content: center;
  transform: scale(2.4);
  filter: drop-shadow(0 18px 36px rgba(60, 45, 30, 0.22));
}

.scratch-panel__canvas {
  position: absolute;
  inset: 0;
  z-index: 20;
  width: 100%;
  height: 100%;
  touch-action: none;
  cursor: grab;
}

.scratch-panel.is-scratching .scratch-panel__canvas {
  cursor: grabbing;
}

.scratch-panel.is-complete .scratch-panel__canvas {
  cursor: default;
}

.scratch-panel__hint,
.scratch-panel__done {
  position: absolute;
  left: 50%;
  z-index: 30;
  margin: 0;
  text-align: center;
  pointer-events: none;
  transition: opacity 0.35s ease, transform 0.35s ease;
}

.scratch-panel__hint {
  top: 50%;
  bottom: auto;
  transform: translate(-50%, -50%);
  padding: clamp(18px, 4vw, 26px) clamp(24px, 5vw, 36px);
  border-radius: 12px;
  font-size: clamp(1rem, 2.6vw, 1.2rem);
  font-weight: 600;
  line-height: 1.55;
  letter-spacing: 0.06em;
  color: #fff;
  background: rgba(18, 16, 14, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow:
    0 12px 40px rgba(0, 0, 0, 0.38),
    0 0 0 1px rgba(255, 255, 255, 0.06) inset;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  animation: scratchHintPulse 2.6s ease-in-out infinite;
}

@keyframes scratchHintPulse {
  0%, 100% {
    box-shadow:
      0 12px 40px rgba(0, 0, 0, 0.38),
      0 0 0 1px rgba(255, 255, 255, 0.06) inset;
    transform: translate(-50%, -50%) scale(1);
  }
  50% {
    box-shadow:
      0 16px 48px rgba(0, 0, 0, 0.45),
      0 0 0 1px rgba(255, 255, 255, 0.12) inset,
      0 0 0 6px rgba(255, 255, 255, 0.06);
    transform: translate(-50%, -50%) scale(1.02);
  }
}

.scratch-panel.is-scratching .scratch-panel__hint,
.scratch-panel.is-complete .scratch-panel__hint {
  opacity: 0;
  transform: translate(-50%, -50%) scale(0.94);
  animation: none;
}

.scratch-panel__done {
  bottom: 16px;
  transform: translateX(-50%);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  white-space: nowrap;
  opacity: 0;
  background: rgba(26, 21, 16, 0.72);
  color: rgba(255, 255, 255, 0.92);
}

.scratch-panel.is-complete .scratch-panel__done {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
  transition-delay: 0.35s;
}

@media (prefers-reduced-motion: reduce) {
  .scratch-panel__hint {
    animation: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .scratch-panel__switch-img,
  .scratch-panel__hint,
  .scratch-panel__done,
  .scratch-panel__canvas {
    transition: none;
  }
}