/* ===== 重置 & 基础 ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg: #ffffff;
  --bg-soft: #f7f6f4;
  --bg-warm: #f3f1ed;
  --text: #111111;
  --muted: #6b6b6b;
  --light-muted: #999999;
  --border-light: #eaeaea;
  --accent: #8a7a5c;
  --container: min(1200px, calc(100vw - 48px));
  --font-sans: 'Inter', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --font-display: 'Montserrat', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --header-bg: rgba(255, 255, 255, 0.92);
  --footer-bg: #0a0a0a;
  --footer-text: rgba(255, 255, 255, 0.6);
  --footer-heading: #ffffff;
  --section-pad: clamp(72px, 10vw, 120px);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --header-h: 72px;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-weight: 300;
  color: var(--text);
  background-color: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.container {
  width: var(--container);
  margin: 0 auto;
  padding: 0 16px;
}

/* ===== 通用 ===== */
.f_10 { font-size: 0.6rem; letter-spacing: 0.04em; }
.f_12 { font-size: 0.7rem; letter-spacing: 0.06em; }
.f_14 { font-size: 0.8rem; letter-spacing: 0.04em; }
.f_18 { font-size: 1rem; letter-spacing: 0.02em; }
.f_24 { font-size: 1.2rem; letter-spacing: 0.01em; }
.f_32 { font-size: 1.4rem; letter-spacing: 0.01em; }
.f_36 { font-size: 1.6rem; letter-spacing: 0.02em; }

.dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  background: #111;
  border-radius: 50%;
  margin-right: 8px;
  vertical-align: middle;
}

.learn-more {
  display: inline-block;
  padding: 8px 28px;
  border: 1px solid var(--text);
  border-radius: 40px;
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: var(--text);
  cursor: pointer;
  transition: 0.25s;
  background: transparent;
}
.learn-more a {
  color: inherit;
  text-decoration: none;
}
.learn-more:hover {
  background: var(--text);
  color: #fff;
}
.learn-more:hover a {
  color: #fff;
}

/* ===== 顶部导航 ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 40px;
  height: 72px;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
  transition: background 0.3s ease;
}
@supports ((backdrop-filter: blur(10px)) or (-webkit-backdrop-filter: blur(10px))) {
  html:not(.is-perf-lite) .site-header {
    background: var(--header-bg);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
  }
}

.site-header__logo {
  --logo-mark-height: 35.28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.2rem;
  letter-spacing: 0.06em;
  color: var(--text);
  text-decoration: none;
  line-height: 1;
}
.site-header__logo img,
.site-header__logo #logo-img {
  display: block;
  height: var(--logo-mark-height);
  width: auto;
  margin: 0;
  object-fit: contain;
  flex-shrink: 0;
  align-self: center;
}
.site-header__logo .logo-text {
  height: var(--logo-mark-height);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  line-height: 1;
  font-size: calc(1em + 5px);
  font-weight: 300;
}
.site-header__logo .logo-text span { font-weight: 200; color: var(--muted); }

.site-header__nav {
  display: flex;
  align-items: center;
  gap: 8px;
}
.site-header__nav-item {
  position: relative;
}
.site-header__nav a,
.site-header__nav-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 10px 14px;
  font-size: calc(0.75rem + 2px);
  letter-spacing: 0.06em;
  color: var(--muted);
  transition: color 0.25s;
  position: relative;
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
}
.site-header__nav a:hover,
.site-header__nav-link:hover,
.site-header__nav a.is-active,
.site-header__nav-link.is-active {
  color: var(--text);
}
.site-header__nav a::after,
.site-header__nav-link::after {
  content: '';
  position: absolute;
  bottom: 6px;
  left: 14px;
  right: 14px;
  width: auto;
  height: 1.5px;
  background: var(--text);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease-out);
}
.site-header__nav a:hover::after,
.site-header__nav-link:hover::after,
.site-header__nav a.is-active::after,
.site-header__nav-link.is-active::after {
  transform: scaleX(1);
}

.site-header__dropdown {
  position: absolute;
  top: calc(100% + 4px);
  left: 0;
  min-width: 180px;
  padding: 10px 0;
  background: #fff;
  border: 1px solid var(--border-light);
  border-radius: 12px;
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.08);
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition: opacity 0.25s ease, transform 0.25s var(--ease-out), visibility 0.25s;
  z-index: 120;
}
.site-header__nav-item:hover .site-header__dropdown,
.site-header__nav-item:focus-within .site-header__dropdown,
.site-header__nav-item.is-open .site-header__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.site-header__dropdown a {
  display: block;
  padding: 10px 18px;
  font-size: 0.72rem;
  color: var(--muted);
  white-space: nowrap;
}
.site-header__dropdown a::after { display: none; }
.site-header__dropdown a:hover {
  color: var(--text);
  background: var(--bg-soft);
}

.site-header__drawer {
  position: fixed;
  inset: 0;
  z-index: 200;
  pointer-events: none;
  display: block;
}
.site-header__drawer[hidden] {
  display: none !important;
}
.site-header__drawer.is-open {
  display: block !important;
  pointer-events: auto;
}
.site-header__drawer-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.35);
  opacity: 0;
  transition: opacity 0.3s ease;
}
.site-header__drawer.is-open .site-header__drawer-backdrop { opacity: 1; }
.site-header__drawer-panel {
  position: absolute;
  top: 0;
  right: 0;
  width: min(320px, 88vw);
  height: 100%;
  background: #fff;
  padding: 88px 28px 40px;
  transform: translateX(100%);
  transition: transform 0.35s var(--ease-out);
  box-shadow: -12px 0 40px rgba(0, 0, 0, 0.08);
  overflow-y: auto;
}
.site-header__drawer.is-open .site-header__drawer-panel { transform: translateX(0); }
.site-header__drawer-panel a {
  display: block;
  padding: 14px 0;
  border-bottom: 1px solid var(--border-light);
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  color: var(--text);
}
.site-header__drawer-group {
  margin: 8px 0 20px;
  padding-left: 12px;
}
.site-header__drawer-group a {
  font-size: 0.8rem;
  color: var(--muted);
  border-bottom-color: transparent;
  padding: 8px 0;
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: 20px;
}

.lang-toggle {
  display: flex;
  align-items: center;
  gap: 6px;
  background: none;
  border: 1px solid var(--border-light);
  border-radius: 30px;
  padding: 4px 12px;
  font-size: 0.65rem;
  font-weight: 400;
  color: var(--muted);
  cursor: pointer;
  transition: 0.25s;
  font-family: var(--font-sans);
  letter-spacing: 0.04em;
}
.lang-toggle:hover { border-color: var(--text); color: var(--text); }
.lang-toggle .lang-divider { color: var(--border-light); }
.lang-toggle .lang-active { color: var(--text); font-weight: 500; }

.site-header__menu {
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  display: none;
}
.site-header__menu img { width: 28px; height: auto; }

/* ===== Top Showcase ===== */
.top-showcase {
  /* 底部层叠：滚动提示 → 轮播字 → 波浪卡片安全区（各显示器统一计算） */
  --hero-safe-bottom: env(safe-area-inset-bottom, 0px);
  --hero-hint-font: clamp(0.58rem, 0.55vw + 0.4vh, 0.68rem);
  --hero-hint-bounce: clamp(4px, 1vh, 8px);
  --hero-hint-bottom: calc(var(--hero-safe-bottom) + clamp(8px, 1.4vh, 16px));
  --hero-hint-block: calc(var(--hero-hint-font) * 1.25 + var(--hero-hint-bounce) + 4px);
  --hero-marquee-font: clamp(0.62rem, 0.85vw + 0.35vh, 1.15rem);
  --hero-marquee-lane-gap: clamp(0.18em, 0.65vh, 0.5em);
  --hero-marquee-block: calc(var(--hero-marquee-font) * 1.3 * 2 + var(--hero-marquee-lane-gap));
  --hero-stack-gap: clamp(8px, 1.35vh, 14px);
  --hero-marquee-bottom: calc(var(--hero-hint-bottom) + var(--hero-hint-block) + var(--hero-stack-gap));
  --hero-bottom-stack: calc(var(--hero-marquee-bottom) + var(--hero-marquee-block) + clamp(4px, 0.8vh, 10px));
  --hero-wave-pad-top: max(var(--header-h), clamp(56px, 9vh, 96px));
  --hero-wave-pad-x: clamp(8px, 2vw, 28px);
  --hero-ring-pad-bottom: calc(var(--hero-bottom-stack) + clamp(16px, 3vh, 40px));

  position: relative;
  width: 100%;
  height: 100vh;
  height: 100dvh;
  min-height: 100svh;
  background: #ebe6de;
  overflow: hidden;
  margin-top: 0;
}

@supports not (height: 100dvh) {
  .top-showcase {
    min-height: 100vh;
  }
}

@media (min-height: 740px) {
  .top-showcase {
    min-height: 600px;
  }
}

.top-showcase__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-color: #ebe6de;
  background-image:
    linear-gradient(180deg, rgba(255, 255, 255, 0.28) 0%, rgba(235, 230, 222, 0.55) 55%, rgba(235, 230, 222, 0.82) 100%),
    var(--hero-bg-image, none);
  background-size: cover;
  background-position: center;
  pointer-events: none;
}

/* ===== card-container 基础 ===== */
.card-container {
  position: absolute;
  inset: 0;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.6s cubic-bezier(0.22, 1, 0.36, 1);
  overflow: hidden;
}

/* --- 波浪布局 (默认) --- */
.card-container.wave-layout {
  overflow: hidden;
  padding: var(--hero-wave-pad-top) var(--hero-wave-pad-x) var(--hero-bottom-stack);
  box-sizing: border-box;
}

.card-container.wave-layout .wave-viewport {
  position: relative;
  width: 100%;
  height: 100%;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.card-container.wave-layout .wave-track {
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
  position: relative;
  height: 100%;
  width: 100%;
  /* Avoid filter on the track — it forces full-layer repaints during wave motion */
  contain: layout style;
}

.card-container.wave-layout .wave-track.is-animating .dynamic-card {
  will-change: transform;
}

.card-container.wave-layout .wave-track.is-idle .dynamic-card {
  /* 空闲呼吸不要长期占合成层，避免多卡 will-change 卡顿 */
  will-change: auto;
}

.card-container.wave-layout .dynamic-card {
  position: absolute;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 10px 28px rgba(90, 70, 40, 0.12);
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  cursor: pointer;
  background-color: #1a1a1a;
  transition: transform 0.2s ease, box-shadow 0.3s ease;
  opacity: 0;
  flex-shrink: 0;
  transform-origin: center center;
  transform: translateZ(0);
  contain: layout style;
}

.card-container.wave-layout .dynamic-card__media {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center center;
  display: block;
  pointer-events: none;
  user-select: none;
}

.card-container.wave-layout .dynamic-card .card-label {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.55);
  padding: 4px 16px;
  border-radius: 30px;
  font-size: 0.6rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.1);
  white-space: nowrap;
  pointer-events: none;
}

.card-container.wave-layout .dynamic-card.hover-active {
  z-index: 100 !important;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
}

.card-container.wave-layout .dynamic-card.carousel-focus {
  z-index: 60 !important;
  box-shadow: 0 18px 52px rgba(0, 0, 0, 0.13);
}

.card-container.wave-layout .wave-track.is-idle .dynamic-card {
  /* transform driven by rAF — keep transition off to avoid stutter */
  transition: opacity 0.45s ease, box-shadow 0.45s ease;
}

.card-container.wave-layout .wave-track.is-idle .dynamic-card:not(.carousel-focus):not(.hover-active):not(.expanded) {
  opacity: 0.88;
}

.card-container.wave-layout .wave-track.is-idle .dynamic-card.carousel-focus {
  opacity: 1;
}

.card-container.wave-layout .dynamic-card.expanded,
.card-container.wave-layout .dynamic-card.visible.expanded {
  z-index: 200 !important;
  box-shadow: 0 32px 88px rgba(0, 0, 0, 0.24);
  cursor: zoom-out;
  transition:
    transform 0.72s cubic-bezier(0.16, 1, 0.3, 1),
    opacity 0.5s ease,
    box-shadow 0.55s ease !important;
}

.card-container.wave-layout .dynamic-card.expanded .dynamic-card__media {
  object-fit: contain;
}

.card-container.wave-layout .wave-track.has-expanded .dynamic-card:not(.expanded) {
  pointer-events: none;
}

/* 入场动画 — 与 cardTransform 并存时由 JS 控制，此处仅做过渡兜底 */
.card-container.wave-layout.entering .dynamic-card {
  opacity: 0;
  transition: opacity 0.5s ease, transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
}
.card-container.wave-layout.entering .dynamic-card.visible {
  opacity: 1;
}

/* --- 轮播控制 --- */
.carousel-controls {
  position: absolute;
  bottom: calc(var(--hero-bottom-stack) + 6px);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 20px;
  z-index: 20;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(8px);
  padding: 6px 16px;
  border-radius: 40px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.3);
  opacity: 0;
  transition: opacity 0.5s ease;
  pointer-events: none;
}

.carousel-controls.visible {
  opacity: 1;
  pointer-events: auto;
}

.carousel-controls button {
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px 8px;
  font-size: 1.2rem;
  color: var(--muted);
  transition: color 0.25s;
  font-family: var(--font-sans);
  line-height: 1;
}

.carousel-controls button:hover {
  color: var(--text);
}

.carousel-controls .dots {
  display: flex;
  gap: 6px;
  align-items: center;
}

.carousel-controls .dot-indicator {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.15);
  transition: background 0.3s ease, transform 0.3s ease;
  cursor: pointer;
}

.carousel-controls .dot-indicator.active {
  background: var(--text);
  transform: scale(1.4);
}

.carousel-controls .page-info {
  font-size: 0.6rem;
  color: var(--muted);
  letter-spacing: 0.04em;
  min-width: 40px;
  text-align: center;
}

/* --- 九宫格布局 (grid-mode) --- */
.card-container.grid-mode {
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: clamp(20px, 3vw, 40px);
  padding: clamp(24px, 4vh, 40px) clamp(20px, 3vw, 40px);
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(4px);
  height: 100%;
  margin-top: 0;
  box-sizing: border-box;
  will-change: opacity, transform;
}

.card-container.grid-mode .grid-wrapper {
  flex: 0 0 auto;
  width: min(420px, 36vw);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  grid-auto-rows: auto;
  gap: 10px;
  align-content: start;
  justify-items: stretch;
  overflow-x: hidden;
  overflow-y: auto;
  max-height: 100%;
  min-height: 0;
  padding-right: 6px;
  margin-top: 0;
  align-self: center;
  scrollbar-width: thin;
  scrollbar-color: rgba(0, 0, 0, 0.15) transparent;
}

.card-container.grid-mode .grid-wrapper::-webkit-scrollbar {
  width: 4px;
}
.card-container.grid-mode .grid-wrapper::-webkit-scrollbar-track {
  background: transparent;
}
.card-container.grid-mode .grid-wrapper::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.15);
  border-radius: 4px;
}

.card-container.grid-mode .grid-wrapper .dynamic-card {
  position: relative;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
  cursor: pointer;
  background-color: #1a1a1a;
  transition: opacity 0.35s ease, box-shadow 0.35s ease, filter 0.35s ease;
  opacity: 0.7;
  transform: none;
  width: 100%;
  aspect-ratio: 1 / 1;
  min-height: 0;
  justify-self: stretch;
  align-self: start;
}

.card-container.grid-mode .grid-wrapper .dynamic-card__media {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center center;
  display: block;
  pointer-events: none;
  user-select: none;
}

.card-container.grid-mode .grid-wrapper .dynamic-card .card-label {
  position: absolute;
  bottom: 6px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  padding: 2px 12px;
  border-radius: 20px;
  font-size: 0.5rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  color: #fff;
  white-space: nowrap;
  pointer-events: none;
}

.card-container.grid-mode .grid-wrapper .dynamic-card.active {
  opacity: 1;
  transform: none;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
  z-index: 2;
  filter: saturate(1.05);
}

.card-container.grid-mode .grid-wrapper .dynamic-card:hover {
  transform: none;
  opacity: 1;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
  z-index: 3;
  filter: saturate(1.08);
}

.card-container.grid-mode .hero-wrapper {
  flex: 1 1 0;
  min-width: 0;
  min-height: 0;
  height: auto;
  max-height: 100%;
  border-radius: 16px;
  overflow: hidden;
  background-color: #1a1a1a;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
  position: relative;
  margin-top: 0;
  align-self: stretch;
  display: flex;
  align-items: center;
  justify-content: center;
}

.card-container.grid-mode .hero-wrapper__media {
  position: relative;
  inset: auto;
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  object-position: center center;
  display: block;
  pointer-events: none;
  user-select: none;
  opacity: 1;
  transition: opacity 0.35s ease;
}

.card-container.grid-mode .hero-wrapper__media.is-switching {
  opacity: 0;
}

.card-container.grid-mode .hero-wrapper .hero-label {
  position: absolute;
  bottom: calc(20px + 2%);
  left: 50%;
  transform: translate(-50%, -2%);
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(6px);
  padding: 6px 24px;
  border-radius: 30px;
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.1);
  white-space: nowrap;
  pointer-events: none;
  transition: opacity 0.38s cubic-bezier(0.16, 1, 0.3, 1), transform 0.38s cubic-bezier(0.16, 1, 0.3, 1);
}

.card-container.grid-mode .hero-wrapper .hero-label.is-switching {
  opacity: 0;
  transform: translate(-50%, calc(-2% - 6px));
}

/* ===== 装饰文字（参照 Encore 环状漂浮英文） ===== */
.ring-text-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  display: flex;
  align-items: center;
  justify-content: center;
  padding:
    var(--hero-wave-pad-top)
    clamp(12px, 3vw, 40px)
    var(--hero-ring-pad-bottom);
  box-sizing: border-box;
}

.ring-text-layout {
  position: relative;
  /* 近正方形轨道 + vmin，各分辨率下四边字距更均匀 */
  --ring-side: min(78vmin, 72vh, 820px);
  width: var(--ring-side);
  height: var(--ring-side);
  max-width: min(92vw, 820px);
  max-height: min(68vh, 820px);
  aspect-ratio: 1 / 1;
}

.ring-text-overlay.is-ready .ring-text-layout {
  animation: ringOrbit 64s linear infinite;
}

.ring-text-word {
  position: absolute;
  font-family: var(--font-display);
  font-weight: 700;
  /* 字号随 vmin 收缩，长词不易在窄屏撞角 */
  font-size: clamp(0.68rem, 2.4vmin, 1.55rem);
  letter-spacing: 0.06em;
  color: #fff;
  text-transform: uppercase;
  white-space: nowrap;
  backface-visibility: hidden;
  max-width: 46%;
  overflow: hidden;
  text-overflow: clip;
}

.ring-text-overlay.is-entering .ring-text-word {
  will-change: transform, opacity;
}

.ring-text-overlay.is-ready .ring-text-word {
  will-change: auto;
}

/* 入场前：仅用透明度，避免 blur filter 掉帧 */
.ring-text-overlay.is-pending .ring-text-word,
.ring-text-overlay.is-entering .ring-text-word {
  opacity: 0;
  letter-spacing: 0.2em;
}

.ring-more-top {
  top: 2%;
  left: 50%;
  transform: translateX(-50%);
  clip-path: inset(0 0 100% 0);
  max-width: 70%;
  text-align: center;
}
.ring-enjoyable {
  top: 50%;
  right: 2%;
  transform: translateY(-50%);
  clip-path: inset(0 0 0 100%);
  max-width: 42%;
  text-align: right;
}
.ring-more-bottom {
  bottom: 2%;
  left: 50%;
  transform: translateX(-50%);
  clip-path: inset(100% 0 0 0);
  max-width: 70%;
  text-align: center;
}
.ring-interesting {
  top: 50%;
  left: 2%;
  transform: translateY(-50%);
  clip-path: inset(0 100% 0 0);
  max-width: 42%;
  text-align: left;
}

/* 九宫格：隐藏并暂停底部白字轮播；拉大中间旋转大字轨道 */
.top-showcase.is-grid-view .ring-text-marquee,
html.is-grid-view .ring-text-marquee {
  opacity: 0 !important;
  visibility: hidden;
  pointer-events: none;
}

.top-showcase.is-grid-view .ring-text-marquee.is-ready .ring-text-marquee__track,
html.is-grid-view .ring-text-marquee.is-ready .ring-text-marquee__track {
  animation-play-state: paused !important;
}

.top-showcase.is-grid-view .ring-text-overlay {
  padding-bottom: clamp(36px, 6vh, 72px);
}

.top-showcase.is-grid-view .ring-text-layout {
  --ring-side: min(86vmin, 78vh, 920px);
  max-height: min(78vh, 920px);
}

.top-showcase.is-grid-view .ring-text-word {
  font-size: clamp(0.72rem, 2.2vmin, 1.45rem);
  letter-spacing: 0.05em;
}

.top-showcase.is-grid-view .ring-more-top { top: 1%; }
.top-showcase.is-grid-view .ring-more-bottom { bottom: 1%; }
.top-showcase.is-grid-view .ring-enjoyable { right: 1%; }
.top-showcase.is-grid-view .ring-interesting { left: 1%; }

.ring-text-overlay.is-entering .ring-more-top {
  animation: ringWordRevealTop 1.35s cubic-bezier(0.22, 1, 0.36, 1) 0.08s both;
}
.ring-text-overlay.is-entering .ring-enjoyable {
  animation: ringWordRevealRight 1.35s cubic-bezier(0.22, 1, 0.36, 1) 0.26s both;
}
.ring-text-overlay.is-entering .ring-more-bottom {
  animation: ringWordRevealBottom 1.35s cubic-bezier(0.22, 1, 0.36, 1) 0.44s both;
}
.ring-text-overlay.is-entering .ring-interesting {
  animation: ringWordRevealLeft 1.35s cubic-bezier(0.22, 1, 0.36, 1) 0.62s both;
}

.ring-text-overlay.is-ready .ring-more-top {
  opacity: 1;
  filter: none;
  letter-spacing: 0.1em;
  clip-path: none;
  animation: ringKeepTop 64s linear infinite;
}
.ring-text-overlay.is-ready .ring-enjoyable {
  opacity: 1;
  filter: none;
  letter-spacing: 0.1em;
  clip-path: none;
  animation: ringKeepRight 64s linear infinite;
}
.ring-text-overlay.is-ready .ring-more-bottom {
  opacity: 1;
  filter: none;
  letter-spacing: 0.1em;
  clip-path: none;
  animation: ringKeepBottom 64s linear infinite;
}
.ring-text-overlay.is-ready .ring-interesting {
  opacity: 1;
  filter: none;
  letter-spacing: 0.1em;
  clip-path: none;
  animation: ringKeepLeft 64s linear infinite;
}

@keyframes ringWordRevealTop {
  0% { opacity: 0; letter-spacing: 0.28em; clip-path: inset(0 0 100% 0); }
  100% { opacity: 1; letter-spacing: 0.1em; clip-path: inset(0 0 0 0); }
}
@keyframes ringWordRevealRight {
  0% { opacity: 0; letter-spacing: 0.28em; clip-path: inset(0 0 0 100%); }
  100% { opacity: 1; letter-spacing: 0.1em; clip-path: inset(0 0 0 0); }
}
@keyframes ringWordRevealBottom {
  0% { opacity: 0; letter-spacing: 0.28em; clip-path: inset(100% 0 0 0); }
  100% { opacity: 1; letter-spacing: 0.1em; clip-path: inset(0 0 0 0); }
}
@keyframes ringWordRevealLeft {
  0% { opacity: 0; letter-spacing: 0.28em; clip-path: inset(0 100% 0 0); }
  100% { opacity: 1; letter-spacing: 0.1em; clip-path: inset(0 0 0 0); }
}

@keyframes ringOrbit {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}
@keyframes ringKeepTop {
  from { transform: translateX(-50%) rotate(0deg); }
  to { transform: translateX(-50%) rotate(-360deg); }
}
@keyframes ringKeepBottom {
  from { transform: translateX(-50%) rotate(0deg); }
  to { transform: translateX(-50%) rotate(-360deg); }
}
@keyframes ringKeepRight {
  from { transform: translateY(-50%) rotate(0deg); }
  to { transform: translateY(-50%) rotate(-360deg); }
}
@keyframes ringKeepLeft {
  from { transform: translateY(-50%) rotate(0deg); }
  to { transform: translateY(-50%) rotate(-360deg); }
}

.ring-text-marquee {
  position: absolute;
  left: 0;
  right: 0;
  bottom: var(--hero-marquee-bottom);
  z-index: 2;
  overflow: hidden;
  pointer-events: none;
  display: flex;
  flex-direction: column;
  gap: var(--hero-marquee-lane-gap);
  max-height: var(--hero-marquee-block);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
}

.ring-text-marquee.is-pending,
.ring-text-marquee.is-entering,
.ring-text-marquee.is-ready {
  opacity: 1;
  transform: none;
}

.ring-text-marquee__lane {
  overflow: hidden;
  width: 100%;
}

/* 镜像轨道：同一套向左动画视觉上变为向右，起点同为中间 translateX(0) */
.ring-text-marquee__lane--reverse {
  transform: scaleX(-1);
}

.ring-text-marquee__lane--reverse .ring-text-marquee__track span {
  display: inline-block;
  transform: scaleX(-1);
}

.ring-text-marquee__track {
  display: flex;
  width: max-content;
  gap: clamp(28px, 4vw, 56px);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--hero-marquee-font);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #fff;
  white-space: nowrap;
  opacity: 0;
  transform: translate3d(0, 0, 0);
  transition: opacity 1.25s cubic-bezier(0.22, 1, 0.36, 1) 0.9s;
  backface-visibility: hidden;
}

.ring-text-marquee.is-entering .ring-text-marquee__track,
.ring-text-marquee.is-ready .ring-text-marquee__track {
  opacity: 1;
}

.ring-text-marquee.is-ready .ring-text-marquee__track {
  animation: ringMarquee 40s linear infinite;
  will-change: transform;
}

html.is-showcase-off .ring-text-marquee.is-ready .ring-text-marquee__track,
html.is-grid-view .ring-text-marquee.is-ready .ring-text-marquee__track,
.ring-text-marquee:not(.is-ready) .ring-text-marquee__track {
  will-change: auto;
}

/* Pause hero-only CSS motion when the hero is off-screen */
html.is-showcase-off .ring-text-overlay.is-ready .ring-text-layout,
html.is-showcase-off .ring-text-overlay.is-ready .ring-text-word,
html.is-showcase-off .ring-text-marquee.is-ready .ring-text-marquee__track,
html.is-grid-view .ring-text-marquee.is-ready .ring-text-marquee__track {
  animation-play-state: paused !important;
}

.projects-marquee__track.is-paused,
.ticker-marquee.is-paused {
  animation-play-state: paused !important;
}

html.is-perf-lite .ring-text-overlay.is-ready .ring-text-layout,
html.is-perf-lite .ring-text-overlay.is-ready .ring-text-word {
  animation-duration: 96s !important;
}

html.is-perf-lite .card-container.wave-layout .dynamic-card .card-label,
html.is-perf-lite .carousel-controls,
html.is-perf-lite .site-header {
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}

html.is-perf-lite .projects-marquee__track {
  animation-duration: 48s;
}

.ring-text-marquee__track span::after {
  content: ' · ';
  opacity: 0.5;
}

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

@media (prefers-reduced-motion: reduce) {
  .top-showcase__bg,
  .ring-text-layout,
  .ring-text-word,
  .ring-text-marquee,
  .ring-text-marquee__track {
    animation: none !important;
  }

  .ring-text-overlay.is-pending .ring-text-word,
  .ring-text-overlay.is-entering .ring-text-word,
  .ring-text-overlay.is-ready .ring-text-word {
    opacity: 1 !important;
    filter: none !important;
    letter-spacing: 0.1em !important;
    clip-path: none !important;
  }

  .ring-text-marquee.is-pending,
  .ring-text-marquee.is-entering,
  .ring-text-marquee.is-ready {
    opacity: 1 !important;
    transform: none !important;
  }

  .ring-text-marquee.is-pending .ring-text-marquee__track,
  .ring-text-marquee.is-entering .ring-text-marquee__track,
  .ring-text-marquee.is-ready .ring-text-marquee__track {
    opacity: 1 !important;
    transform: none !important;
  }

  .ring-text-marquee__lane--reverse {
    transform: none !important;
  }

  .ring-text-marquee__lane--reverse .ring-text-marquee__track span {
    transform: none !important;
  }
}

/* ===== 滚动提示 ===== */
.scroll-hint {
  position: absolute;
  bottom: var(--hero-hint-bottom);
  left: 50%;
  transform: translateX(-50%);
  font-size: var(--hero-hint-font);
  letter-spacing: 0.12em;
  color: rgba(0, 0, 0, 0.28);
  font-family: var(--font-display);
  animation: bounceHint 2s ease-in-out infinite;
  pointer-events: none;
  z-index: 10;
  transition: opacity 0.45s ease, visibility 0.45s ease;
  line-height: 1.2;
  white-space: nowrap;
  max-width: calc(100vw - 32px);
  overflow: hidden;
  text-overflow: ellipsis;
  text-align: center;
}
.scroll-hint.is-hidden {
  opacity: 0;
  visibility: hidden;
  animation: none;
}
@keyframes bounceHint {
  0%, 100% { transform: translateX(-50%) translateY(0); opacity: 0.4; }
  50% { transform: translateX(-50%) translateY(calc(var(--hero-hint-bounce) * -1)); opacity: 1; }
}

@media (prefers-reduced-motion: reduce) {
  .scroll-hint { animation: none; }
  .card-container.wave-layout .wave-track.is-idle .dynamic-card {
    transition: none;
  }
}

.about {
  padding: var(--section-pad) 0 calc(var(--section-pad) * 0.55);
  background: linear-gradient(180deg, #fff 0%, var(--bg-soft) 100%);
}
.about-grid { display: grid; grid-template-columns: 96px 1fr; gap: 56px; align-items: start; }
.about-tag { display: flex; align-items: center; color: var(--muted); font-weight: 400; padding-top: 8px; }
.about-tag .dot { background: var(--accent); margin-right: 10px; }
.about-h2-line {
  display: block;
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2rem, 4.2vw, 3.1rem);
  letter-spacing: -0.02em;
  line-height: 1.18;
}
.about-copy-zone { margin: 24px 0 32px; max-width: 42rem; }
.about-copy-zone p { color: var(--muted); font-weight: 300; line-height: 1.75; }

.stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(24px, 4vw, 56px);
  padding: calc(var(--section-pad) * 0.55) 0 var(--section-pad);
  border-top: none;
}
.stat-box {
  text-align: center;
  padding: 28px 16px 24px;
  background: #fff;
  border: 1px solid rgba(0, 0, 0, 0.05);
  border-radius: 18px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.03);
  transition: transform 0.35s var(--ease-out), box-shadow 0.35s ease;
}
.stat-box:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.06);
}
.stat-number {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2.4rem, 4vw, 3.4rem);
  letter-spacing: -0.02em;
  color: var(--text);
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
}
.stat-number.is-counting {
  color: var(--accent);
}
.stat-box p {
  color: var(--muted);
  font-weight: 300;
  margin-top: 10px;
  letter-spacing: 0.04em;
}

.feature-list { padding: var(--section-pad) 0; background: var(--bg-warm); }
.feature-list__stage { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(36px, 5vw, 72px); align-items: center; }
.feature-media { position: relative; width: 100%; aspect-ratio: 9 / 16; max-height: 600px; border-radius: 12px; overflow: hidden; background: #1a1a1a; }
.feature-media-item { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; object-position: center center; opacity: 0; transition: opacity 0.6s ease; }
.feature-media-item.is-active { opacity: 1; }
.feature-copy-stack { display: flex; flex-direction: column; gap: 36px; }
.feature-copy-item { opacity: 0.3; transition: opacity 0.4s ease; cursor: pointer; padding: 8px 0; border-bottom: 1px solid transparent; }
.feature-copy-item.is-active { opacity: 1; border-bottom-color: var(--text); }
.feature-copy-item h4 { font-family: var(--font-display); font-weight: 300; margin-bottom: 4px; }
.feature-copy-item p { color: var(--muted); font-weight: 300; }

.ticker { overflow: hidden; background: #fff; padding: 24px 0; border-top: 1px solid var(--border-light); border-bottom: 1px solid var(--border-light); }
.ticker-lane { overflow: hidden; white-space: nowrap; padding: 4px 0; width: var(--container); margin: auto; }
.ticker-marquee { display: inline-flex; animation: ticker-scroll 20s linear infinite; }
.ticker-marquee--right { animation-direction: reverse; }
.ticker-seg { display: flex; gap: 60px; padding-right: 60px; }
.ticker-seg span { font-family: var(--font-display); font-weight: 300; font-size: 1.2rem; letter-spacing: 0.12em; color: var(--light-muted); text-transform: uppercase; }
@keyframes ticker-scroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

.about-intro { padding: var(--section-pad) 0; background: #fff; }
.about-intro__inner { display: grid; grid-template-columns: 80px 1fr; gap: 50px; }
.about-intro__label { display: flex; align-items: center; color: var(--muted); font-weight: 400; }
.about-intro__dot { display: inline-block; width: 6px; height: 6px; background: var(--muted); border-radius: 50%; margin-right: 10px; }
.about-intro__text { font-weight: 300; color: var(--text); line-height: 1.8; }
.about-intro__link-wrap { margin-top: 28px; }

.pic-big-section { padding: 50px 0 72px; background: #f8f8f8; }
.pbt-image-wrap {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  background: #e8f4fc;
  cursor: zoom-in;
  touch-action: none;
  outline: none;
}
.pbt-image-wrap.is-zooming {
  cursor: zoom-out;
}
.pbt-image-wrap:focus-visible {
  box-shadow: 0 0 0 2px rgba(96, 168, 214, 0.55);
}
.pbt-image-main {
  width: 100%;
  height: auto;
  max-width: 100%;
  display: block;
  object-fit: contain;
  object-position: center center;
  transform-origin: 0 0;
  user-select: none;
  -webkit-user-drag: none;
  /* 滚轮缩放跟手；点击缩放再开短过渡 */
  transition: none;
}
.pbt-image-wrap.is-click-zoom .pbt-image-main {
  transition: transform 0.22s cubic-bezier(0.22, 1, 0.36, 1);
}
.pbt-image-wrap.is-zooming .pbt-image-main {
  will-change: transform;
}
.pbt-image-wrap:not(.is-zooming) .pbt-image-main {
  will-change: auto;
}

/* ===== 合作伙伴（地图下方） ===== */
.partners {
  margin-top: clamp(40px, 5vw, 64px);
  padding-top: clamp(36px, 4.5vw, 56px);
  border-top: 1px solid rgba(17, 17, 17, 0.08);
}

.partners__head {
  display: grid;
  grid-template-columns: minmax(120px, 180px) 1fr;
  gap: clamp(20px, 4vw, 48px);
  align-items: start;
  margin-bottom: clamp(28px, 3.5vw, 40px);
}

.partners__tag {
  display: flex;
  align-items: center;
  color: var(--muted);
  font-weight: 400;
  letter-spacing: 0.08em;
}

.partners__title {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(1.45rem, 2.6vw, 2rem);
  letter-spacing: 0.04em;
  color: var(--text);
  line-height: 1.25;
  margin-bottom: 10px;
}

.partners__desc {
  max-width: 36rem;
  color: var(--muted);
  font-weight: 300;
  line-height: 1.75;
}

.partners__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: rgba(17, 17, 17, 0.08);
  border: 1px solid rgba(17, 17, 17, 0.08);
}

.partners__item {
  background: #fff;
  min-height: clamp(120px, 15vw, 160px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: clamp(14px, 2vw, 22px) clamp(10px, 1.5vw, 16px);
  text-align: center;
  overflow: hidden;
  content-visibility: auto;
  contain-intrinsic-size: 180px 140px;
  transition: background 0.35s var(--ease-out), box-shadow 0.35s var(--ease-out);
}

/* 统一 LOGO：每格独立内边距 + max 约束，保证完整可见不溢出 */
.partners__logo {
  --logo-box-h: clamp(52px, 7.5vw, 80px);
  position: relative;
  width: min(100%, 92%);
  max-width: 220px;
  height: var(--logo-box-h);
  overflow: hidden;
  flex-shrink: 0;
  box-sizing: border-box;
}

.partners__logo-track {
  display: flex;
  width: 300%;
  height: 100%;
  transform: translate3d(0, 0, 0);
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
  backface-visibility: hidden;
}

.partners__grid.is-sliding .partners__logo-track {
  will-change: transform;
}

.partners__grid:not(.is-sliding) .partners__logo-track {
  will-change: auto;
}

.partners__grid[data-slide="1"] .partners__logo-track {
  transform: translate3d(-33.3333%, 0, 0);
}

.partners__grid[data-slide="2"] .partners__logo-track {
  transform: translate3d(-66.6667%, 0, 0);
}

.partners__grid.is-snap .partners__logo-track {
  transition: none;
}

.partners__logo-slide {
  flex: 0 0 33.3333%;
  width: 33.3333%;
  height: 100%;
  min-width: 0;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
  padding: clamp(6px, 1.2vw, 12px) clamp(8px, 1.4vw, 14px);
  overflow: hidden;
}

.partners__logo-img {
  display: block;
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  object-position: center;
  flex: 0 0 auto;
  opacity: 0.92;
  pointer-events: none;
}

/* partners1 06/09/10/16：相对默认约 114%（放大后经两次缩小） */
.partners__logo-slide--boost {
  padding: 4px 6px;
}

.partners__logo-img--boost {
  max-width: 114%;
  max-height: 114%;
}

.partners__item:hover {
  background: #faf9f7;
  box-shadow: inset 0 0 0 1px rgba(138, 122, 92, 0.28);
}

.partners__item:hover .partners__logo-img {
  opacity: 1;
}

.partners__rail {
  margin-top: clamp(28px, 3.5vw, 40px);
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.partners__rail-track {
  display: flex;
  width: max-content;
  gap: 40px;
  transform: translate3d(0, 0, 0);
  animation: partners-rail 36s linear infinite;
  animation-play-state: paused;
}

/* 仅进入视口时跑字幕，避免后台持续合成 */
.partners.is-partners-active .partners__rail-track {
  animation-play-state: running;
}

.partners__rail-item {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(17, 17, 17, 0.22);
  white-space: nowrap;
}

.partners__rail-item::after {
  content: '·';
  margin-left: 40px;
  opacity: 0.5;
}

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

@media (max-width: 900px) {
  .partners__head { grid-template-columns: 1fr; gap: 12px; }
  .partners__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .partners__logo {
    --logo-box-h: clamp(48px, 10vw, 68px);
    max-width: 200px;
  }
}

@media (max-width: 520px) {
  .partners__item { min-height: 112px; padding: 14px 8px 12px; }
  .partners__logo {
    --logo-box-h: clamp(44px, 12vw, 58px);
    max-width: 170px;
    padding: 2px 4px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .partners__rail-track { animation: none; }
  .partners__logo-track { transition: none !important; }
}

html.is-perf-lite .partners__logo-track {
  transition: none !important;
}

html.is-perf-lite .partners__rail-track,
html.is-perf-lite .projects-marquee__track,
html.is-perf-lite .ticker-marquee {
  animation: none !important;
}

html.is-perf-lite .card-container.grid-mode {
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

.projects-marquee { padding: 80px 0; background: #fff; overflow: hidden; }
.projects-marquee__viewport { overflow: hidden; width: 100%; }
.projects-marquee__track { display: flex; gap: 24px; animation: marquee-scroll 30s linear infinite; width: max-content; }
.projects-marquee__group { display: flex; gap: 24px; }
.projects-marquee .card { width: 260px; flex-shrink: 0; border-radius: 12px; overflow: hidden; background: #f5f5f5; transition: transform 0.3s ease; }
.projects-marquee .card:hover { transform: translateY(-4px); }
.projects-marquee .card img { width: 100%; aspect-ratio: 4 / 3; object-fit: contain; object-position: center center; background: #1a1a1a; }
.card-meta { padding: 12px 16px; }
.card-meta__title { font-size: 0.7rem; color: var(--text); letter-spacing: 0.02em; }
@keyframes marquee-scroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* Below-fold sections: skip layout/paint until near viewport */
.stats,
.feature-list,
.ticker,
.pbt,
.projects-marquee,
.partners {
  content-visibility: auto;
  contain-intrinsic-size: 1px 720px;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--footer-bg);
  color: var(--footer-text);
  padding: 70px 40px 30px;
}
.site-footer__inner { max-width: 1200px; margin: 0 auto; }
.site-footer__top { display: inline-block; color: rgba(255, 255, 255, 0.3); font-size: 0.7rem; letter-spacing: 0.06em; margin-bottom: 50px; transition: color 0.25s; }
.site-footer__top:hover { color: #fff; }
.site-footer__main { display: grid; grid-template-columns: 1.1fr 0.85fr 0.85fr 1.35fr; gap: 40px; padding-bottom: 50px; border-bottom: 1px solid rgba(255, 255, 255, 0.06); }
.site-footer__intro-copy {
  margin-top: 18px;
  max-width: 22rem;
  color: rgba(255, 255, 255, 0.38);
  line-height: 1.7;
  font-weight: 300;
}
.site-footer__col-title { color: rgba(255, 255, 255, 0.4); font-weight: 400; font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 16px; }
.site-footer__links { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.site-footer__links a { color: rgba(255, 255, 255, 0.4); font-size: 0.8rem; transition: color 0.25s; letter-spacing: 0.02em; }
.site-footer__links a:hover { color: #fff; }
.site-footer__contact { color: rgba(255, 255, 255, 0.4); font-size: 0.78rem; line-height: 1.8; letter-spacing: 0.02em; min-width: 0; }
.site-footer__contact p { white-space: nowrap; }
.site-footer__contact a { color: inherit; text-decoration: none; }
.site-footer__contact a:hover { color: #fff; }
.site-footer__contact strong { color: rgba(255, 255, 255, 0.7); font-weight: 400; }
.site-footer__meta { padding-top: 30px; }
.site-footer__bar { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 16px; font-size: 0.6rem; color: rgba(255, 255, 255, 0.25); }
.site-footer__legal { display: flex; gap: 24px; }
.site-footer__legal span { cursor: default; }
.site-footer__social { display: flex; gap: 20px; }
.site-footer__social a { color: rgba(255, 255, 255, 0.25); transition: color 0.25s; font-size: 0.7rem; letter-spacing: 0.04em; }
.site-footer__social a:hover { color: #fff; }
.site-footer__rule { height: 1px; background: rgba(255, 255, 255, 0.04); margin: 30px 0 20px; }

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  :root { --header-h: 64px; }
  .about-grid { grid-template-columns: 1fr; gap: 20px; }
  .about-intro__inner { grid-template-columns: 1fr; gap: 20px; }
  .feature-list__stage { grid-template-columns: 1fr; gap: 40px; }
  .feature-media { aspect-ratio: 16 / 9; max-height: 400px; }
  .ring-text-layout { --ring-side: min(72vmin, 56vh, 480px); max-height: min(56vh, 480px); }
  .ring-text-word { font-size: clamp(0.72rem, 2.3vmin, 1.1rem); }
  .site-footer__main { grid-template-columns: 1fr 1fr; gap: 40px; }
  .site-header__nav { display: none; }
  .site-header__menu { display: block; }
  .site-header { padding: 0 20px; }
  .card-container.grid-mode { flex-direction: column; padding: 20px; gap: 20px; height: 100%; align-items: center; }
  .card-container.grid-mode .grid-wrapper { flex: 0 0 auto; width: 100%; max-width: 420px; margin-top: 0; max-height: none; }
  .card-container.grid-mode .hero-wrapper { width: 100%; flex: 1 1 auto; margin-top: 0; min-height: 140px; max-height: none; height: auto; }
}

@media (max-width: 768px) {
  :root { --header-h: 64px; }
  .top-showcase {
    --hero-marquee-font: clamp(0.58rem, 2.2vw + 0.2vh, 0.9rem);
    --hero-wave-pad-x: 10px;
  }
  .stats { grid-template-columns: 1fr; gap: 30px; }
  .site-footer__main { grid-template-columns: 1fr; gap: 32px; }
  .site-footer__bar { flex-direction: column; align-items: flex-start; }
  .about-h2-line { font-size: 2rem; }
  .site-header { padding: 0 16px; height: 64px; }
  .projects-marquee .card { width: 180px; }
  .site-footer { padding: 40px 20px 20px; }
  .site-footer__headline-line { font-size: 1.8rem; }
  .card-container.grid-mode .grid-wrapper { max-width: 320px; gap: 8px; }
  .card-container.grid-mode .hero-wrapper { min-height: 120px; }
}

@media (max-width: 480px) {
  .top-showcase {
    --hero-marquee-font: clamp(0.55rem, 2.6vw, 0.78rem);
    --hero-hint-font: 0.55rem;
    --hero-stack-gap: 6px;
  }
  .about { padding: 60px 0 40px; }
  .about-h2-line { font-size: 1.6rem; }
  .feature-copy-item h4 { font-size: 1.2rem; }
  .projects-marquee .card { width: 140px; }
  .site-footer__main { gap: 24px; }
  .site-footer__headline-line { font-size: 1.4rem; }
  .site-header__logo { font-size: 1rem; --logo-mark-height: 26.46px; }
  .stat-box { padding: 22px 12px; }
  .card-container.grid-mode .grid-wrapper { max-width: 220px; gap: 6px; max-height: none; margin-top: 0; }
  .card-container.grid-mode .hero-wrapper { min-height: 100px; margin-top: 0; }
  .card-container.grid-mode .grid-wrapper .dynamic-card .card-label { font-size: 0.4rem; padding: 1px 8px; }
}

/* 矮屏：压缩底部层与环字，避免重叠/裁切 */
@media (max-height: 720px) {
  .top-showcase {
    --hero-hint-bounce: 4px;
    --hero-marquee-font: clamp(0.55rem, 1.5vh, 0.85rem);
    --hero-wave-pad-top: max(52px, var(--header-h));
    --hero-stack-gap: 6px;
  }
  .ring-text-layout {
    --ring-side: min(68vmin, 58vh, 520px);
    max-height: min(58vh, 520px);
  }
  .ring-text-word { font-size: clamp(0.7rem, 2.1vmin, 1.15rem); }
}

@media (max-height: 560px) {
  .top-showcase {
    --hero-marquee-font: clamp(0.5rem, 1.4vh, 0.72rem);
    --hero-hint-font: 0.52rem;
    --hero-hint-bounce: 3px;
  }
  .ring-text-layout {
    --ring-side: min(62vmin, 52vh, 420px);
    max-height: min(52vh, 420px);
  }
}

/* 横屏矮屏：优先保证卡片可读，弱化装饰层 */
@media (orientation: landscape) and (max-height: 500px) {
  .top-showcase {
    --hero-hint-block: 0px;
    --hero-hint-bottom: 0px;
    --hero-marquee-bottom: calc(var(--hero-safe-bottom) + 6px);
    --hero-marquee-block: calc(var(--hero-marquee-font) * 1.25 + 2px);
    --hero-bottom-stack: calc(var(--hero-marquee-bottom) + var(--hero-marquee-block) + 4px);
    --hero-wave-pad-top: 44px;
    min-height: 100dvh;
  }
  .scroll-hint { display: none; }
  .ring-text-marquee__lane--reverse { display: none; }
  .ring-text-overlay { opacity: 0.55; }
  .carousel-controls {
    bottom: calc(var(--hero-bottom-stack) + 4px);
    transform: translateX(-50%) scale(0.92);
    transform-origin: center bottom;
  }
}

/* 超宽屏：限制环字不要过大 */
@media (min-width: 1600px) and (min-height: 900px) {
  .ring-text-layout {
    --ring-side: min(70vmin, 64vh, 860px);
    max-height: min(64vh, 860px);
  }
}