/* ===================================================================
   梵光七曜 全站共用设计系统
   基于 homepage DEMO 提取，扩展多页面组件
   零外部依赖 - 系统字体栈替代 Google Fonts
   =================================================================== */

/* ---------- Design Tokens ---------- */
:root {
  --black: #000;
  --smoke: #6c4877;
  --moon: #f5f0f6;
  --gold: #c9ab79;
  --purple: #c8a3d1;
  --purple-light: #d8b3e4;
  --purple-deep: #9c74a7;
  --bg-dark: #020102;
  --bg-darker: #050306;
  --bg-card: rgba(33, 22, 36, .72);
  --bg-card-hover: rgba(85, 50, 94, .13);
  --border-glass: rgba(255, 255, 255, .18);
  --border-faint: rgba(255, 255, 255, .12);
  --border-subtle: rgba(255, 255, 255, .1);
  --text-primary: #fff;
  --text-secondary: #9d95a0;
  --text-tertiary: #8d8090;
  --text-muted: #6e6670;
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Source Han Sans SC", sans-serif;
  --font-serif: "Songti SC", "Source Han Serif SC", "SimSun", serif;
  --font-display: Georgia, "Times New Roman", "Songti SC", serif;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 26px;
  --radius-full: 999px;
  --max-width: 1280px;
  --nav-height: 80px;
}

/* ---------- Reset & Base ---------- */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  background: var(--black);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-weight: 300;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; }
img, video { max-width: 100%; display: block; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, textarea, select { font-family: inherit; font-size: inherit; color: inherit; }
ul, ol { list-style: none; }

/* ---------- Typography ---------- */
.big-heading {
  font-family: var(--font-serif);
  font-size: clamp(54px, 7vw, 94px);
  line-height: .92;
  letter-spacing: -.06em;
  font-weight: 400;
}
.big-heading em {
  font-family: var(--font-display);
  color: var(--purple);
  font-weight: 400;
  font-style: italic;
}
.section-kicker {
  font-size: 12px;
  color: rgba(255, 255, 255, .76);
  letter-spacing: .12em;
  margin-bottom: 16px;
  text-transform: uppercase;
}
.section-title {
  font-family: var(--font-serif);
  font-size: clamp(36px, 4.5vw, 60px);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -.04em;
}
.section-subtitle {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.8;
}
.page-title {
  font-family: var(--font-serif);
  font-size: clamp(42px, 5.5vw, 72px);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -.05em;
}

/* ---------- Liquid Glass Effect ---------- */
.liquid {
  background: rgba(255, 255, 255, .01);
  background-blend-mode: luminosity;
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, .12);
  position: relative;
  overflow: hidden;
}
.liquid::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1.2px;
  background: linear-gradient(180deg, rgba(255, 255, 255, .48), rgba(255, 255, 255, .14) 22%, transparent 42%, transparent 58%, rgba(255, 255, 255, .14) 80%, rgba(255, 255, 255, .44));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

/* ---------- Shade & Wash Overlays ---------- */
.shade {
  position: absolute; inset: 0; z-index: 1;
  background: radial-gradient(circle at 50% 40%, transparent 15%, rgba(0, 0, 0, .16) 55%, rgba(0, 0, 0, .52) 100%);
  pointer-events: none;
}
.purple-wash {
  position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(110deg, rgba(25, 9, 30, .38), transparent 48%, rgba(74, 39, 86, .22));
  mix-blend-mode: color;
  pointer-events: none;
}

/* ---------- Navigation (Multi-page) ---------- */
.nav {
  position: fixed; z-index: 100; top: 0; left: 0; width: 100%;
  display: grid;
  grid-template-columns: 88px 1fr 88px;
  align-items: center;
  padding: 16px 5vw;
  pointer-events: none;
  transition: background .35s ease, backdrop-filter .35s ease;
}
.nav.scrolled {
  background: rgba(2, 1, 2, .88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
}
.nav .logo {
  width: 88px; height: 48px;
  pointer-events: auto;
  display: flex; align-items: center;
}
.nav .logo img { width: 100%; height: 100%; object-fit: contain; }
.nav-center {
  justify-self: center;
  pointer-events: auto;
  border-radius: var(--radius-full);
  padding: 6px;
  display: flex;
  align-items: center;
  gap: 3px;
}
.nav-center a {
  font-size: 13px;
  padding: 10px 16px;
  color: rgba(255, 255, 255, .72);
  white-space: nowrap;
  border-radius: var(--radius-full);
  transition: color .3s ease, background .3s ease;
}
.nav-center a:hover { color: #fff; background: rgba(255, 255, 255, .06); }
.nav-center a.active { color: #fff; background: rgba(151, 102, 167, .28); }
/* v2.6.14: 线下体验导航样式统一为普通栏目 */
.nav-center .claim {
  color: rgba(255, 255, 255, 0.78);
  font-weight: 400;
  font-size: 13px;
  padding: 10px 16px;
  border-radius: var(--radius-full);
  white-space: nowrap;
  transition: color .3s ease, background .3s ease;
}
.nav-center .claim:hover { color: #fff; background: rgba(255, 255, 255, .06); }
.nav-mobile-toggle { display: none; }

/* Mobile nav */
@media (max-width: 768px) {
  .nav { grid-template-columns: 76px 1fr 44px; padding: 12px 12px; }
  .nav .logo { width: 76px; height: 42px; }
  .nav-center {
    display: none;
    position: fixed;
    top: 64px; left: 18px; right: 18px;
    flex-direction: column;
    align-items: stretch;
    padding: 8px;
    gap: 4px;
    border-radius: 18px;
    background: rgba(18, 11, 22, .98);
    box-shadow: 0 16px 40px rgba(0, 0, 0, .6);
  }
  .nav-center.is-open { display: flex; }
  .nav-center a { text-align: left; padding: 14px 18px; font-size: 15px; }
  .nav-mobile-toggle {
    display: flex;
    grid-column: 3;
    justify-self: end;
    pointer-events: auto;
    width: 44px; height: 44px;
    align-items: center; justify-content: center;
    color: #fff;
    font-size: 20px;
  }
}

/* ---------- Stage & Hero ---------- */
.stage {
  min-height: 100vh;
  position: relative;
  overflow: hidden;
  background: var(--black);
}
.bg-video {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: 0;
  z-index: 0;
}
.hero .bg-video {
  width: 120%; height: 120%;
  left: 50%; top: 0;
  transform: translateX(-50%);
  object-position: top;
}
.hero-clean .bg-video {
  width: 100%; height: 100%;
  left: 0; top: 0;
  transform: none;
  object-position: center;
}

/* Hero video UI */
.hero-video-ui {
  position: absolute; z-index: 5;
  left: 50%; bottom: 24px;
  width: min(760px, calc(100% - 48px));
  transform: translateX(-50%);
  color: #fff;
  text-align: center;
}
.hero-video-actions {
  display: grid;
  grid-template-columns: 44px minmax(150px, auto) 44px;
  justify-content: center;
  align-items: center;
  gap: 10px;
}
.hero-control {
  height: 44px;
  border: 1px solid rgba(255, 255, 255, .34);
  border-radius: var(--radius-full);
  background: rgba(8, 5, 9, .28);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: #fff;
  transition: background .25s, border-color .25s, opacity .25s;
}
.hero-control:hover { background: rgba(112, 70, 123, .3); border-color: rgba(255, 255, 255, .58); }
.hero-control:disabled { opacity: .28; cursor: default; }
.hero-control-main { min-width: 180px; padding: 0 24px; font-size: 12px; letter-spacing: .16em; display: flex; align-items: center; justify-content: center; }
.hero-control-icon { width: 44px; font-size: 18px; }
.hero-progress { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 16px; }
.hero-progress span { position: relative; height: 14px; }
.hero-progress span::before { content: ""; position: absolute; left: 0; right: 0; top: 6px; height: 1px; background: rgba(255, 255, 255, .25); }
.hero-progress i { position: absolute; left: 0; top: 6px; width: 100%; height: 1px; transform: scaleX(0); transform-origin: left center; background: #fff; box-shadow: 0 0 8px rgba(255, 255, 255, .45); }
.hero-scroll-link { display: inline-block; margin-top: 12px; font-size: 10px; letter-spacing: .16em; color: rgba(255, 255, 255, .68); text-shadow: 0 2px 12px #000; }
.hero-copy-layer { position: absolute; inset: 0; z-index: 4; pointer-events: none; }
.hero-copy {
  position: absolute;
  opacity: 0; visibility: hidden;
  transform: translateY(12px);
  transition: opacity .5s ease, transform .5s ease, visibility .5s;
  max-width: min(720px, 58vw);
  text-shadow: 0 3px 18px rgba(0, 0, 0, .78);
}
.hero-copy.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
.hero-copy h2 { margin: 0; font-weight: 500; font-size: clamp(28px, 3.2vw, 52px); line-height: 1.25; }
.hero-copy p { margin: 10px 0 0; font-size: clamp(17px, 2vw, 31px); line-height: 1.5; }
.sr-only { position: absolute !important; width: 1px !important; height: 1px !important; padding: 0 !important; margin: -1px !important; overflow: hidden !important; clip: rect(0, 0, 0, 0) !important; white-space: nowrap !important; border: 0 !important; }

/* ---------- Content Stage ---------- */
.content-stage {
  position: relative; z-index: 3;
  min-height: 100vh;
  padding: 120px 6vw 60px;
  display: flex; flex-direction: column;
}

/* ---------- Section Title Row ---------- */
.section-title-row {
  display: flex;
  justify-content: space-between;
  align-items: end;
  max-width: var(--max-width);
  margin: 0 auto;
}
.section-title-row > p {
  max-width: 420px;
  color: var(--text-secondary);
  line-height: 1.8;
  font-size: 14px;
}

/* ---------- Dark Section ---------- */
.dark-section {
  background: var(--bg-dark);
  padding: 120px 6vw;
}

/* ---------- Cards (Base) ---------- */
.cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.card {
  border-radius: var(--radius-lg);
  padding: 22px;
  min-height: 330px;
  display: flex;
  flex-direction: column;
  transition: transform .4s ease, background .4s;
}
.card:hover { transform: translateY(-8px); background: var(--bg-card-hover); }
.card-top { display: flex; justify-content: space-between; align-items: start; }
.channel-icon {
  width: 44px; height: 44px;
  border-radius: 13px;
  display: grid; place-items: center;
  font-family: var(--font-display);
  font-size: 20px;
}
.tag {
  border-radius: var(--radius-full);
  padding: 5px 9px;
  font-size: 9px;
  color: rgba(255, 255, 255, .86);
}
.card-body { margin-top: auto; }
.card h3 {
  font-family: var(--font-serif);
  font-size: 28px;
  font-weight: 400;
  margin: 0 0 12px;
}
.card p {
  font-size: 12px;
  line-height: 1.65;
  color: rgba(255, 255, 255, .82);
  margin: 0 0 18px;
}
.card a { font-size: 11px; }

/* QR Box */
.qr-box {
  width: 108px; height: 108px;
  border-radius: 12px;
  background: #fff;
  padding: 6px;
  overflow: hidden;
}
.qr-box img { width: 100%; height: 100%; object-fit: contain; }
.scan { font-size: 11px; color: #e0cee5; }

/* ---------- Feature List ---------- */
.feature-layout {
  max-width: var(--max-width);
  margin: 65px auto 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(330px, 400px);
  gap: 64px;
  align-items: stretch;
}
.features {
  width: 100%; height: 100%;
  margin: 0;
  border-top: 1px solid rgba(255, 255, 255, .15);
  display: grid;
  grid-template-rows: repeat(5, 1fr);
}
.feature {
  min-height: 0; height: auto;
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr) 26px;
  grid-template-areas: "num title mark" "num copy mark";
  column-gap: 24px; row-gap: 7px;
  align-content: center;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255, 255, 255, .15);
  cursor: pointer;
  transition: padding-left .35s ease, background .35s ease;
}
.feature span { grid-area: num; align-self: center; font-size: 12px; color: var(--purple-deep); }
.feature h3 { grid-area: title; margin: 0; font-family: var(--font-serif); font-size: clamp(20px, 2vw, 26px); line-height: 1.25; font-weight: 400; transition: color .3s ease; }
.feature p { grid-area: copy; margin: 0; max-width: 620px; font-size: 14px; line-height: 1.65; color: var(--text-secondary); }
.feature b { grid-area: mark; align-self: center; font-size: 15px; font-weight: 400; color: #a989b1; transition: transform .35s ease, color .35s ease; }
.feature:hover, .feature:focus-visible, .feature.is-active {
  padding-left: 12px;
  background: linear-gradient(90deg, rgba(104, 67, 114, .1), transparent 72%);
  outline: none;
}
.feature.is-active h3 { color: var(--purple-light); }
.feature.is-active b { color: #fff; transform: rotate(45deg); }
.feature-visual {
  position: relative;
  width: 100%;
  aspect-ratio: 4/5;
  align-self: center;
  padding: 8px;
  border-radius: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-glass);
  box-shadow: 0 28px 70px rgba(0, 0, 0, .62), inset 0 1px 1px rgba(255, 255, 255, .22);
  overflow: hidden;
}
.feature-visual::before {
  content: ""; position: absolute; inset: 0;
  border-radius: inherit; padding: 1px;
  background: linear-gradient(145deg, rgba(255, 255, 255, .38), transparent 35%, rgba(188, 145, 199, .18) 72%, rgba(255, 255, 255, .28));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none; z-index: 3;
}
.feature-image {
  position: absolute; inset: 8px;
  width: calc(100% - 16px); height: calc(100% - 16px);
  object-fit: cover;
  border-radius: 17px;
  opacity: 1; transform: scale(1);
  transition: opacity .28s ease, transform .65s cubic-bezier(.2, .8, .2, 1);
}
.feature-image.is-changing { opacity: 0; transform: scale(1.018); }

/* ---------- Gallery Section ---------- */
.gallery-section {
  background: radial-gradient(circle at 50% 30%, #26172b 0, #0b080c 34%, #020202 76%);
  color: #f7f2f7;
  padding: 60px 0 40px;
  display: flex; flex-direction: column;
  align-items: center;
}
.gallery-kicker, .gallery-hint { text-align: center; color: #a99eaa; font-size: 12px; letter-spacing: .2em; }
/* v2.6.47: 晶石画廊副标题左右边距与品牌亮点副标题（content-stage）对齐 */
.gallery-sub { text-align: center; color: #a99eaa; font-size: 14px; letter-spacing: .12em; padding: 0 6vw; }
.gallery-heading {
  text-align: center;
  font-family: var(--font-serif);
  font-size: clamp(45px, 5.8vw, 82px);
  font-weight: 400;
  letter-spacing: -.055em;
  margin: 12px 0 8px;
}
.gallery-shell {
  position: relative; width: 100%;
  height: 540px; min-height: 540px;
  overflow: hidden;
  perspective: 1500px;
  perspective-origin: 50% 44%;
  cursor: grab;
  touch-action: pan-y;
  user-select: none;
}
.gallery-shell:active { cursor: grabbing; }
.gallery-track { position: relative; width: 100%; height: 100%; transform-style: preserve-3d; }
.gallery-item {
  position: absolute;
  left: 50%; top: 48%;
  width: 276px; height: 408px;
  margin: 0;
  transform-origin: center center;
  backface-visibility: hidden;
  transition: box-shadow .28s ease, opacity .22s linear, filter .28s ease;
  padding: 8px;
  background: linear-gradient(145deg, #302433, #0a080b 60%, #171018);
  border: 1px solid var(--border-glass);
  border-radius: 18px;
  box-shadow: 0 30px 58px rgba(0, 0, 0, .7), 0 12px 25px rgba(91, 51, 102, .25), inset 0 1px 1px rgba(255, 255, 255, .38);
}
.gallery-item img { width: 100%; height: 100%; object-fit: cover; border-radius: 11px; }
.gallery-item.gallery-active {
  filter: brightness(1.08);
  box-shadow: 0 44px 90px rgba(0, 0, 0, .9), 0 18px 42px rgba(122, 73, 138, .48), inset 0 1px 1px rgba(255, 255, 255, .5);
}
.gallery-nav {
  position: absolute; inset: 0; z-index: 200;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 clamp(12px, 4vw, 72px);
  pointer-events: none;
}
.gallery-nav button {
  pointer-events: auto;
  width: 46px; height: 46px;
  background: rgba(18, 11, 21, .65);
  backdrop-filter: blur(12px);
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, .3);
  color: #f4edf5;
  font-size: 18px;
}
.gallery-nav button:hover { background: rgba(200, 163, 209, .16); }

/* ---------- Store Section ---------- */
.store-section {
  position: relative;
  background: linear-gradient(180deg, var(--bg-darker) 0, #080509 45%, var(--bg-dark) 100%);
  padding: 40px 6vw 55px;
  color: #fff;
}
.store-section::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 75% 32%, rgba(105, 62, 117, .2), transparent 42%);
  pointer-events: none;
}
.store-feature {
  position: relative; z-index: 1;
  max-width: var(--max-width);
  min-height: 480px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 34% 66%;
  overflow: hidden;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-glass);
  background: linear-gradient(135deg, rgba(43, 26, 47, .82), rgba(7, 5, 8, .9) 48%, rgba(0, 0, 0, .92));
  box-shadow: 0 34px 90px rgba(0, 0, 0, .5);
}
.store-copy { padding: 45px 42px 40px; display: flex; flex-direction: column; justify-content: space-between; min-width: 0; }
.store-kicker { margin: 0; color: #b890c2; font-size: 12px; letter-spacing: .22em; }
.store-place { display: inline-flex; padding: 7px 12px; border: 1px solid var(--border-glass); border-radius: var(--radius-full); color: #d8c9dc; font-size: 12px; letter-spacing: .08em; }
.store-copy h3 { font-family: var(--font-serif); font-size: clamp(42px, 4.2vw, 68px); line-height: 1.05; font-weight: 400; letter-spacing: -.055em; margin: 18px 0 0; }
.store-meta { display: grid; gap: 18px; margin-top: 28px; }
.store-meta p { margin: 0; color: #e4dce6; font-size: 14px; line-height: 1.75; }
.store-meta small { display: block; color: var(--text-tertiary); font-size: 12px; letter-spacing: .18em; margin-bottom: 4px; }
.store-actions { display: flex; align-items: center; gap: 22px; margin-top: 30px; }
.store-button { display: inline-flex; align-items: center; justify-content: center; min-height: 42px; padding: 0 20px; border-radius: var(--radius-full); background: #f4eff5; color: #130f14; font-size: 11px; transition: background .3s; }
.store-button:hover { background: var(--purple-light); }
.store-map { color: #d8c9dc; font-size: 11px; border-bottom: 1px solid rgba(216, 201, 220, .45); padding-bottom: 3px; }
.store-gallery { display: block; min-width: 0; min-height: 0; height: 100%; background: transparent; }
.store-photo { position: relative; margin: 0; overflow: hidden; border-radius: 17px; background: transparent; height: 100%; }
.store-photo-single { width: 100%; height: 100%; border-radius: 17px; overflow: hidden; }
.store-photo img { width: 100%; height: 100%; display: block; object-fit: cover; transition: transform .7s cubic-bezier(.2, .8, .2, 1), filter .7s; }
.store-photo-single img { object-position: center; object-fit: contain; background: transparent; }
.store-photo:hover img { transform: scale(1.035); filter: brightness(1.06); }

/* ---------- Updates / Articles Grid ---------- */
.updates-section {
  position: relative;
  background: var(--bg-dark);
  color: #fff;
  padding: 59px 6vw 100px;
  overflow: hidden;
}
.updates-section::before {
  content: ""; position: absolute; left: 50%; top: 80px;
  width: 70vw; height: 260px;
  transform: translateX(-50%);
  background: radial-gradient(ellipse, rgba(98, 54, 109, .15), transparent 68%);
  pointer-events: none;
}
.updates-head {
  position: relative;
  max-width: var(--max-width);
  margin: 0 auto 54px;
  display: flex; align-items: end; justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, .14);
  padding-bottom: 28px;
}
.updates-head h2 { font-family: var(--font-serif); font-size: clamp(42px, 5.4vw, 72px); font-weight: 400; line-height: 1; margin: 9px 0 0; }
.updates-head p { margin: 0; color: #a99eaa; font-size: 12px; letter-spacing: .2em; }
.updates-head > span { color: #8d808f; font-size: 12px; letter-spacing: .12em; }
.updates-head .updates-sub { color: #a99eaa; font-size: 14px; letter-spacing: .12em; margin-top: 10px; }
.updates-grid {
  position: relative;
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.update-card {
  position: relative; display: block;
  min-width: 0; padding-bottom: 62px;
  color: #fff; outline: none;
  cursor: pointer;
}
.update-cover {
  position: relative; margin: 0;
  aspect-ratio: 192/120;
  overflow: hidden;
  border-radius: 18px;
  background: #171018;
  border: 1px solid var(--border-faint);
  box-shadow: 0 22px 48px rgba(0, 0, 0, .45);
}
.update-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform .75s cubic-bezier(.2, .8, .2, 1), filter .5s ease; }
.update-title {
  position: absolute; left: 18px; right: 18px; bottom: 0;
  min-height: 98px;
  padding: 20px 52px 20px 22px;
  display: flex; align-items: center;
  border-radius: 16px;
  background: rgba(17, 11, 18, .82);
  border: 1px solid var(--border-glass);
  box-shadow: 0 18px 38px rgba(0, 0, 0, .48), inset 0 1px 1px rgba(255, 255, 255, .12);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  font-family: var(--font-serif);
  font-size: clamp(17px, 1.45vw, 21px);
  font-weight: 400; line-height: 1.55;
  transition: transform .45s ease, border-color .45s ease;
}
.update-title::after { content: "\2197"; position: absolute; right: 22px; top: 50%; transform: translateY(-50%); font-family: var(--font-sans); font-size: 15px; color: var(--purple); }
.update-card:hover .update-cover img { transform: scale(1.045); filter: brightness(1.04); }
.update-card:hover .update-title { transform: translateY(-7px); border-color: rgba(210, 174, 219, .42); }

/* ---------- Footer ---------- */
.footer {
  padding: 48px 20px;
  display: flex; align-items: center; justify-content: center;
  background: var(--black);
  color: rgba(255, 255, 255, .62);
  text-align: center;
}
.footer-legal { margin: 0; font-size: 12px; line-height: 2; letter-spacing: .04em; }

/* ---------- Page Container (for inner pages) ---------- */
.page-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: calc(var(--nav-height) + 60px) 6vw 80px;
}

/* ---------- Breadcrumb ---------- */
.breadcrumb {
  display: flex; align-items: center; gap: 8px;
  font-size: 12px; color: var(--text-tertiary);
  margin-bottom: 32px;
}
.breadcrumb a { color: var(--text-secondary); transition: color .3s; }
.breadcrumb a:hover { color: var(--purple); }
.breadcrumb span { color: var(--text-muted); }

/* ---------- Product Grid (Collections) ---------- */
.filter-bar {
  display: flex; flex-wrap: wrap; gap: 8px;
  margin-bottom: 40px;
  padding: 12px;
  border-radius: var(--radius-lg);
  background: rgba(18, 11, 22, .6);
  border: 1px solid var(--border-faint);
}
.filter-group { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.filter-group + .filter-group { border-left: 1px solid var(--border-subtle); padding-left: 12px; margin-left: 4px; }
.filter-label { font-size: 11px; color: var(--text-tertiary); letter-spacing: .08em; margin-right: 4px; }
.filter-btn {
  padding: 8px 14px;
  border-radius: var(--radius-full);
  font-size: 12px;
  color: var(--text-secondary);
  border: 1px solid transparent;
  transition: all .3s ease;
}
.filter-btn:hover { color: #fff; border-color: var(--border-glass); }
.filter-btn.active { color: #fff; background: rgba(151, 102, 167, .28); border-color: rgba(221, 187, 231, .26); }

.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.product-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border-faint);
  transition: transform .4s ease, border-color .4s ease, box-shadow .4s ease;
  cursor: pointer;
}
.product-card:hover { transform: translateY(-6px); border-color: rgba(200, 163, 209, .3); box-shadow: 0 20px 48px rgba(0, 0, 0, .5); }
.product-card-image {
  overflow: hidden;
  background: #0a080b;
  display: flex;
  align-items: center;
  justify-content: center;
}
.product-card-image img { width: 100%; height: auto; max-height: 320px; object-fit: contain; transition: transform .6s ease; }
.product-card:hover .product-card-image img { transform: scale(1.05); }
.product-card-body { padding: 16px 18px 20px; }
.product-card-badge {
  display: inline-block;
  font-size: 10px;
  padding: 3px 8px;
  border-radius: var(--radius-full);
  margin-bottom: 8px;
  letter-spacing: .06em;
}
.badge-classic { background: rgba(201, 171, 121, .15); color: var(--gold); }
.badge-designer { background: rgba(200, 163, 209, .15); color: var(--purple); }
.badge-energy { background: rgba(108, 72, 119, .2); color: var(--smoke); }
.product-card h3 { font-family: var(--font-serif); font-size: 18px; font-weight: 400; margin: 0 0 6px; }
.product-card .product-category { font-size: 11px; color: var(--text-tertiary); margin-bottom: 8px; }
.product-card .product-price { font-size: 14px; color: #e4dce6; }
.product-card .product-price span { font-size: 11px; color: var(--text-muted); text-decoration: line-through; margin-left: 6px; }

/* ---------- Product Detail ---------- */
.product-detail-layout {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 48px;
  align-items: start;
}
.product-gallery {
  position: sticky; top: calc(var(--nav-height) + 20px);
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--border-glass);
  background: var(--bg-card);
}
.product-gallery-main { aspect-ratio: 1; overflow: hidden; }
.product-gallery-main img { width: 100%; height: 100%; object-fit: cover; }
.product-gallery-thumbs { display: flex; gap: 8px; padding: 12px; overflow-x: auto; }
.product-gallery-thumb { flex: 0 0 64px; height: 64px; border-radius: 8px; overflow: hidden; border: 2px solid transparent; cursor: pointer; }
.product-gallery-thumb.active { border-color: var(--purple); }
.product-gallery-thumb img { width: 100%; height: 100%; object-fit: cover; }
.product-info { padding: 0; }
.product-info h1 { font-family: var(--font-serif); font-size: clamp(28px, 3vw, 40px); font-weight: 400; line-height: 1.2; margin-bottom: 16px; }
.product-info-meta { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 24px; }
.product-info-meta-item { font-size: 12px; color: var(--text-secondary); }
.product-info-meta-item strong { color: #e4dce6; font-weight: 400; }
.product-info-price { font-size: 28px; color: #fff; margin-bottom: 24px; }
.product-info-price span { font-size: 14px; color: var(--text-muted); }
.product-info-desc { font-size: 14px; line-height: 1.8; color: var(--text-secondary); margin-bottom: 32px; }
.product-info-cta { display: flex; gap: 12px; margin-bottom: 32px; }
.btn-primary {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-full);
  background: #fff; color: #050505;
  font-size: 13px; font-weight: 500;
  transition: background .3s, transform .3s;
}
.btn-primary:hover { background: var(--purple-light); transform: translateY(-2px); }
.btn-secondary {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-full);
  background: transparent; color: #fff;
  font-size: 13px;
  border: 1px solid var(--border-glass);
  transition: background .3s, border-color .3s;
}
.btn-secondary:hover { background: rgba(255, 255, 255, .06); border-color: var(--purple); }
.product-info-details {
  border-top: 1px solid var(--border-subtle);
  padding-top: 24px;
}
.product-info-details h3 { font-family: var(--font-serif); font-size: 18px; font-weight: 400; margin-bottom: 16px; }
.product-info-details ul { display: grid; gap: 10px; }
.product-info-details li { font-size: 13px; color: var(--text-secondary); display: flex; gap: 10px; }
.product-info-details li::before { content: "\2022"; color: var(--purple); }

/* ---------- Article List ---------- */
.article-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.article-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--border-faint);
  transition: transform .4s ease, border-color .4s ease;
  cursor: pointer;
}
.article-card:hover { transform: translateY(-6px); border-color: rgba(200, 163, 209, .3); }
.article-card-image { aspect-ratio: 16/10; overflow: hidden; }
.article-card-image img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.article-card:hover .article-card-image img { transform: scale(1.05); }
.article-card-body { padding: 20px 22px 24px; }
.article-card-date { font-size: 11px; color: var(--text-tertiary); letter-spacing: .08em; margin-bottom: 8px; }
.article-card h3 { font-family: var(--font-serif); font-size: 20px; font-weight: 400; line-height: 1.4; margin-bottom: 10px; }
.article-card p { font-size: 13px; line-height: 1.7; color: var(--text-secondary); margin-bottom: 12px; }
.article-card-tag { display: inline-block; font-size: 10px; padding: 3px 8px; border-radius: var(--radius-full); background: rgba(200, 163, 209, .12); color: var(--purple); }

/* ---------- Article Detail ---------- */
.article-detail { max-width: 800px; margin: 0 auto; }
.article-detail-header { text-align: center; margin-bottom: 40px; }
.article-detail-header h1 { font-family: var(--font-serif); font-size: clamp(28px, 3.5vw, 44px); font-weight: 400; line-height: 1.3; margin-bottom: 16px; }
.article-detail-meta { display: flex; justify-content: center; gap: 16px; font-size: 12px; color: var(--text-tertiary); }
.article-detail-cover { border-radius: var(--radius-lg); overflow: hidden; margin-bottom: 40px; }
.article-detail-cover img { width: 100%; }
.article-detail-body { font-size: 15px; line-height: 1.9; color: #c8c0cc; }
.article-detail-body p { margin-bottom: 24px; }
.article-detail-body h2 { font-family: var(--font-serif); font-size: 24px; font-weight: 400; margin: 40px 0 16px; color: #fff; }
.article-detail-body h3 { font-family: var(--font-serif); font-size: 20px; font-weight: 400; margin: 32px 0 12px; color: #fff; }
.article-detail-body blockquote { border-left: 2px solid var(--purple); padding: 8px 20px; margin: 24px 0; color: var(--text-secondary); font-style: italic; }
.article-detail-body img { border-radius: 12px; margin: 24px 0; }
.article-related { margin-top: 60px; padding-top: 40px; border-top: 1px solid var(--border-subtle); }
.article-related h2 { font-family: var(--font-serif); font-size: 24px; font-weight: 400; margin-bottom: 24px; }

/* ---------- About Page ---------- */
.about-hero { text-align: center; padding: 60px 0 40px; }
.about-hero p { max-width: 640px; margin: 20px auto 0; font-size: 16px; line-height: 1.9; color: var(--text-secondary); }
.about-story { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; margin: 60px 0; }
.about-story-image { border-radius: var(--radius-xl); overflow: hidden; border: 1px solid var(--border-glass); }
.about-story-image img { width: 100%; }
.about-story-text h2 { font-family: var(--font-serif); font-size: 28px; font-weight: 400; margin-bottom: 20px; }
.about-story-text p { font-size: 14px; line-height: 1.9; color: var(--text-secondary); margin-bottom: 16px; }
.timeline { margin: 60px 0; }
.timeline-item { display: grid; grid-template-columns: 100px 1fr; gap: 24px; padding: 24px 0; border-bottom: 1px solid var(--border-subtle); }
.timeline-year { font-family: var(--font-display); font-size: 24px; color: var(--purple); }
.timeline-content h3 { font-family: var(--font-serif); font-size: 18px; font-weight: 400; margin-bottom: 8px; }
.timeline-content p { font-size: 13px; line-height: 1.7; color: var(--text-secondary); }

/* ---------- Contact Page ---------- */
.contact-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.contact-info h2 { font-family: var(--font-serif); font-size: 28px; font-weight: 400; margin-bottom: 24px; }
.contact-info-item { display: flex; gap: 16px; margin-bottom: 24px; }
.contact-info-item .icon { width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center; background: var(--bg-card); border: 1px solid var(--border-faint); font-size: 18px; }
.contact-info-item .text small { display: block; font-size: 10px; color: var(--text-tertiary); letter-spacing: .12em; margin-bottom: 4px; }
.contact-info-item .text p { font-size: 14px; color: #e4dce6; line-height: 1.6; }
.contact-form { background: var(--bg-card); border: 1px solid var(--border-faint); border-radius: var(--radius-xl); padding: 32px; }
.contact-form h2 { font-family: var(--font-serif); font-size: 24px; font-weight: 400; margin-bottom: 24px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 12px; color: var(--text-tertiary); letter-spacing: .08em; margin-bottom: 8px; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  background: rgba(0, 0, 0, .4);
  border: 1px solid var(--border-faint);
  color: #fff;
  font-size: 14px;
  transition: border-color .3s ease;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus { outline: none; border-color: var(--purple); }
.form-group textarea { resize: vertical; min-height: 100px; }
.custom-process { margin-top: 60px; }
.custom-process h2 { font-family: var(--font-serif); font-size: 28px; font-weight: 400; margin-bottom: 32px; text-align: center; }
.process-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.process-step { text-align: center; }
.process-step-num { width: 48px; height: 48px; border-radius: 50%; display: grid; place-items: center; margin: 0 auto 16px; background: var(--bg-card); border: 1px solid var(--border-glass); font-family: var(--font-display); font-size: 20px; color: var(--purple); }
.process-step h3 { font-family: var(--font-serif); font-size: 16px; font-weight: 400; margin-bottom: 8px; }
.process-step p { font-size: 12px; line-height: 1.6; color: var(--text-secondary); }

/* ---------- FAQ Page ---------- */
.faq-categories { display: flex; gap: 8px; margin-bottom: 32px; flex-wrap: wrap; }
.faq-category-btn {
  padding: 10px 20px;
  border-radius: var(--radius-full);
  font-size: 13px;
  color: var(--text-secondary);
  border: 1px solid var(--border-faint);
  transition: all .3s ease;
}
.faq-category-btn:hover { color: #fff; border-color: var(--border-glass); }
.faq-category-btn.active { color: #fff; background: rgba(151, 102, 167, .28); border-color: rgba(221, 187, 231, .26); }
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid var(--border-subtle); }
.faq-question {
  display: flex; justify-content: space-between; align-items: center;
  padding: 20px 0;
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 400;
  cursor: pointer;
  transition: color .3s ease;
}
.faq-question:hover { color: var(--purple-light); }
.faq-question::after { content: "+"; font-size: 20px; color: var(--purple); transition: transform .3s ease; }
.faq-item.is-open .faq-question::after { transform: rotate(45deg); }
.faq-answer {
  max-height: 0; overflow: hidden;
  transition: max-height .4s ease, padding .4s ease;
}
.faq-item.is-open .faq-answer { max-height: 500px; padding-bottom: 20px; }
.faq-answer p { font-size: 14px; line-height: 1.8; color: var(--text-secondary); }

/* ---------- Chapter System (Homepage) ---------- */
.chapter-stage {
  position: relative;
  height: 100vh; min-height: 820px;
  background: var(--bg-dark);
  color: #fff;
  display: grid;
  grid-template-rows: minmax(0, 1fr) 78px;
  overflow: hidden;
  opacity: 0;
  transition: opacity .35s ease;
}
.chapter-stage.is-ready { opacity: 1; }
.chapter-stage::before {
  content: ""; position: absolute; inset: 0; z-index: 0;
  background: linear-gradient(90deg, rgba(3, 1, 4, .76), rgba(9, 5, 11, .54) 48%, rgba(2, 1, 3, .67)), linear-gradient(180deg, rgba(0, 0, 0, .48), rgba(0, 0, 0, .62));
  pointer-events: none;
}
.chapter-stage > .chapter-nav, .chapter-stage > .chapter-viewport { position: relative; z-index: 1; }
.chapter-nav {
  display: flex; align-items: center; justify-content: center;
  padding: 12px 5vw;
  background: linear-gradient(0deg, rgba(2, 1, 2, .96), rgba(2, 1, 2, .68));
  border-top: 1px solid var(--border-subtle);
}
.chapter-tabs {
  display: flex; align-items: center; justify-content: center;
  gap: clamp(12px, 2.1vw, 34px);
  padding: 7px 18px;
  border-radius: var(--radius-full);
  background: rgba(31, 20, 34, .48);
  border: 1px solid var(--border-faint);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
}
.chapter-tab {
  position: relative;
  border: 0; background: none;
  color: #807783;
  font: 500 12px/1 var(--font-sans);
  letter-spacing: .05em;
  padding: 11px 4px;
  white-space: nowrap;
  transition: color .3s ease;
  border-radius: var(--radius-full);
}
.chapter-tab:hover { color: #d9cedc; }
.chapter-tab.is-active { color: #fff; background: rgba(151, 102, 167, .28); box-shadow: inset 0 0 0 1px rgba(221, 187, 231, .26); }
.chapter-viewport { position: relative; min-height: 0; overflow: hidden; }
.chapter-track { display: flex; width: 100%; height: 100%; transform: translate3d(0, 0, 0); transition: transform .85s cubic-bezier(.22, .76, .18, 1); will-change: transform; }
.chapter-panel { flex: 0 0 100%; width: 100%; height: 100% !important; min-height: 0 !important; overflow-x: hidden !important; overflow-y: auto !important; overscroll-behavior: contain; }
.chapter-menu-toggle { display: none; }

/* ---------- Sales Stage ---------- */
.sales-stage { position: relative; background: var(--bg-darker); }
.sales-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.sales-stage .shade { background: linear-gradient(90deg, rgba(0, 0, 0, .64), rgba(0, 0, 0, .1) 55%, rgba(0, 0, 0, .3)), linear-gradient(0deg, var(--bg-darker), transparent 50%); }

/* ---------- Utility ---------- */
.text-center { text-align: center; }
.mt-40 { margin-top: 40px; }
.mt-60 { margin-top: 60px; }
.mb-40 { margin-bottom: 40px; }
.hidden { display: none !important; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .nav { padding: 0 18px; }
  .nav-center > a:not(.claim) { display: none; }
  .nav-center.is-open > a { display: block; }
  .cards, .product-grid { grid-template-columns: 1fr 1fr; }
  .feature { grid-template-columns: 50px 1fr 30px; padding: 24px 0; }
  .feature p { grid-column: 2; }
  .section-title-row { display: block; }
  .section-title-row > p { margin-top: 26px; }
  .updates-grid { gap: 16px; }
  .article-list { grid-template-columns: 1fr 1fr; }
  .product-detail-layout { grid-template-columns: 1fr; }
  .product-gallery { position: static; }
  .about-story { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: 1fr 1fr; }
  .store-feature { grid-template-columns: 1fr; }
  .store-gallery { aspect-ratio: 16/9; }
}
@media (max-width: 700px) {
  .big-heading { font-size: 48px; }
  .cards, .product-grid, .article-list { grid-template-columns: 1fr; }
  .updates-grid { grid-template-columns: 1fr; }
  .card { min-height: 290px; }
  .content-stage { padding-left: 18px; padding-right: 18px; }
  .dark-section { padding-left: 18px; padding-right: 18px; }
  .gallery-sub { padding-left: 18px; padding-right: 18px; }
  .feature-layout { grid-template-columns: 1fr; }
  .feature-visual { display: none; }
  .chapter-stage { height: auto; min-height: 760px; }
  .chapter-tabs { width: 100%; flex-direction: column; }
  .chapter-menu-toggle { display: flex; }
  .process-steps { grid-template-columns: 1fr; }
  .page-container { padding-left: 18px; padding-right: 18px; }
  .gallery-shell { height: 470px !important; min-height: 470px !important; }
  .gallery-item { width: 226px !important; height: 336px !important; }
}
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
  html { scroll-behavior: auto; }
}

/* v3.1.9: footer 链接默认颜色与版权文字统一 */
.footer-legal a { color: rgba(255,255,255,.62); }