/* ==========================================================
   A8 高端私享俱乐部 — UI Design System
   Style Sheet
   ========================================================== */

/* ==========================================================
   1. Design Tokens
   ========================================================== */
:root {
  /* ----- Brand Colors: Onyx Black + Champagne Gold ----- */
  --color-ink-900: #0a0a0a;
  --color-ink-800: #111111;
  --color-ink-700: #1a1a1a;
  --color-ink-600: #222222;
  --color-ink-500: #2a2a2a;
  --color-ink-400: #3a3a3a;
  --color-ink-300: #4a4a4a;
  --color-ink-200: #6a6a6a;
  --color-ink-100: #9a9a9a;
  --color-ink-50:  #d4d4d4;
  --color-ink-25:  #f4f1eb;

  --color-cream: #f5f0e6;
  --color-ivory: #faf6ee;

  /* Gold Spectrum */
  --color-gold-50:  #f8f1de;
  --color-gold-100: #ede0b9;
  --color-gold-200: #e2cf94;
  --color-gold-300: #d4b96f;
  --color-gold-400: #c9a96e;
  --color-gold-500: #b8924d;
  --color-gold-600: #9a7a3d;
  --color-gold-700: #7a5f2e;
  --color-gold-800: #5a4520;
  --color-gold-900: #3a2c14;

  /* Semantic */
  --color-success: #4a7c59;
  --color-warning: #c9a96e;
  --color-error:   #8b3a3a;
  --color-info:    #5a7a8a;

  /* ----- Typography ----- */
  --font-serif: 'Cormorant Garamond', 'Noto Serif SC', Georgia, serif;
  --font-sans: 'Inter', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', system-ui, -apple-system, sans-serif;
  --font-zh-serif: 'Noto Serif SC', 'Songti SC', 'STSong', serif;

  --fs-xs:   0.75rem;
  --fs-sm:   0.8125rem;
  --fs-base: 0.9375rem;
  --fs-md:   1rem;
  --fs-lg:   1.125rem;
  --fs-xl:   1.375rem;
  --fs-2xl:  1.75rem;
  --fs-3xl:  2.25rem;
  --fs-4xl:  3rem;
  --fs-5xl:  4rem;
  --fs-6xl:  5.5rem;

  --fw-light:    300;
  --fw-regular:  400;
  --fw-medium:   500;
  --fw-semibold: 600;
  --fw-bold:     700;

  --lh-tight:   1.15;
  --lh-snug:    1.35;
  --lh-normal:  1.6;
  --lh-relaxed: 1.8;

  /* ----- Spacing (4px base) ----- */
  --s-1:  0.25rem;
  --s-2:  0.5rem;
  --s-3:  0.75rem;
  --s-4:  1rem;
  --s-5:  1.25rem;
  --s-6:  1.5rem;
  --s-8:  2rem;
  --s-10: 2.5rem;
  --s-12: 3rem;
  --s-16: 4rem;
  --s-20: 5rem;
  --s-24: 6rem;
  --s-32: 8rem;

  /* ----- Radius ----- */
  --r-xs: 2px;
  --r-sm: 4px;
  --r-md: 8px;
  --r-lg: 12px;
  --r-xl: 20px;
  --r-2xl: 28px;
  --r-pill: 999px;

  /* ----- Shadows ----- */
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.25);
  --shadow-md: 0 8px 24px rgba(0,0,0,0.35);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.45);
  --shadow-xl: 0 24px 80px rgba(0,0,0,0.55);
  --shadow-gold: 0 8px 32px rgba(184,146,77,0.25);
  --shadow-gold-strong: 0 12px 40px rgba(201,169,110,0.35);

  /* ----- Motion ----- */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-luxe: cubic-bezier(0.22, 1, 0.36, 1);

  --t-fast: 200ms;
  --t-base: 350ms;
  --t-slow: 600ms;
  --t-slower: 900ms;

  /* ----- Layout ----- */
  --container: 1280px;
  --container-wide: 1440px;
  --nav-h: 80px;

  /* ----- Borders ----- */
  --border-faint: 1px solid rgba(201,169,110,0.12);
  --border-soft:  1px solid rgba(201,169,110,0.22);
  --border-bold:  1px solid rgba(201,169,110,0.4);

  /* ----- Gradients ----- */
  --gradient-gold: linear-gradient(135deg, #e6c989 0%, #c9a96e 50%, #8a6f3e 100%);
  --gradient-gold-shine: linear-gradient(135deg, #f8e5b8 0%, #d4b96f 40%, #9a7a3d 100%);
  --gradient-onyx: linear-gradient(180deg, #0a0a0a 0%, #161616 50%, #0a0a0a 100%);
  --gradient-vignette: radial-gradient(ellipse at center, transparent 30%, rgba(0,0,0,0.6) 100%);
}

/* ==========================================================
   2. Reset & Base
   ========================================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: var(--lh-normal);
  color: var(--color-ink-50);
  background: var(--color-ink-900);
  overflow-x: hidden;
  min-height: 100vh;
  font-weight: var(--fw-regular);
}

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

a { color: inherit; text-decoration: none; transition: color var(--t-fast) var(--ease-out); }
button { font-family: inherit; background: none; border: none; cursor: pointer; color: inherit; }
input, select, textarea { font-family: inherit; font-size: inherit; color: inherit; }
ul, ol { list-style: none; }

::selection { background: var(--color-gold-400); color: var(--color-ink-900); }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--color-ink-800); }
::-webkit-scrollbar-thumb { background: var(--color-gold-700); border-radius: var(--r-pill); }
::-webkit-scrollbar-thumb:hover { background: var(--color-gold-500); }

/* ==========================================================
   3. Typography Utilities
   ========================================================== */
.gold-text {
  background: var(--gradient-gold-shine);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: var(--fw-semibold);
}

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--s-6);
}

@media (min-width: 768px) { .container { padding-inline: var(--s-8); } }
@media (min-width: 1024px) { .container { padding-inline: var(--s-10); } }

.section { position: relative; padding-block: var(--s-20); }
@media (min-width: 768px) { .section { padding-block: var(--s-24); } }

.section__head { max-width: 880px; margin-bottom: var(--s-12); }
.section__head--center { margin-inline: auto; text-align: center; }

.section__eyebrow {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  letter-spacing: 0.3em;
  color: var(--color-gold-400);
  margin-bottom: var(--s-6);
  text-transform: uppercase;
}

.section__title {
  font-family: var(--font-zh-serif);
  font-size: clamp(1.875rem, 4vw, 3rem);
  font-weight: var(--fw-semibold);
  line-height: var(--lh-snug);
  color: var(--color-cream);
  letter-spacing: 0.02em;
}

.section__lead {
  margin-top: var(--s-6);
  font-size: var(--fs-lg);
  line-height: var(--lh-relaxed);
  color: var(--color-ink-100);
  max-width: 720px;
}

.section__head--center .section__lead { margin-inline: auto; }

/* ==========================================================
   4. Buttons
   ========================================================== */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-2);
  padding: var(--s-3) var(--s-6);
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  letter-spacing: 0.05em;
  border-radius: var(--r-pill);
  cursor: pointer;
  user-select: none;
  transition: all var(--t-base) var(--ease-luxe);
  border: 1px solid transparent;
  white-space: nowrap;
  overflow: hidden;
}

.btn:focus-visible { outline: 2px solid var(--color-gold-300); outline-offset: 3px; }
.btn--block { display: flex; width: 100%; }
.btn--lg { padding: var(--s-4) var(--s-10); font-size: var(--fs-base); }

.btn--primary {
  background: var(--gradient-gold);
  color: var(--color-ink-900);
  font-weight: var(--fw-semibold);
  box-shadow: var(--shadow-gold);
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-gold-strong);
}

.btn--gold {
  background: var(--gradient-gold-shine);
  color: var(--color-ink-900);
  font-weight: var(--fw-semibold);
  padding: var(--s-4) var(--s-10);
  font-size: var(--fs-base);
  box-shadow: 0 8px 32px rgba(201,169,110,0.35);
}
.btn--gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 48px rgba(201,169,110,0.5);
}

.btn--ghost {
  background: transparent;
  color: var(--color-cream);
  border: 1px solid rgba(201,169,110,0.4);
}
.btn--ghost:hover {
  background: rgba(201,169,110,0.08);
  border-color: var(--color-gold-300);
  color: var(--color-gold-200);
}

/* ==========================================================
   5. Loading Screen
   ========================================================== */
.loader {
  position: fixed;
  inset: 0;
  background: var(--color-ink-900);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity var(--t-slow) var(--ease-out), visibility var(--t-slow);
}
.loader.is-hidden { opacity: 0; visibility: hidden; }

.loader__inner { text-align: center; }
.loader__brand {
  font-family: var(--font-serif);
  font-size: 5rem;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.05em;
  margin-bottom: var(--s-6);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
}
.loader__a {
  background: var(--gradient-gold-shine);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.loader__8 {
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.loader__bar {
  width: 200px;
  height: 1px;
  background: rgba(201,169,110,0.15);
  margin: 0 auto var(--s-4);
  overflow: hidden;
}
.loader__bar span {
  display: block;
  width: 0;
  height: 100%;
  background: var(--gradient-gold);
  animation: loaderFill 1.5s var(--ease-luxe) forwards;
}
.loader__text {
  font-size: var(--fs-xs);
  letter-spacing: 0.4em;
  color: var(--color-gold-400);
  text-transform: uppercase;
}

@keyframes loaderFill {
  to { width: 100%; }
}

/* ==========================================================
   6. Navigation
   ========================================================== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  background: rgba(10, 10, 10, 0.6);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(201,169,110,0);
  transition: all var(--t-base) var(--ease-out);
}

.nav.is-scrolled {
  background: rgba(10, 10, 10, 0.92);
  border-bottom-color: rgba(201,169,110,0.15);
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--s-8);
}

.nav__brand {
  display: flex;
  align-items: center;
  gap: var(--s-3);
  flex-shrink: 0;
}

.nav__logo {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: var(--fw-semibold);
  letter-spacing: 0.02em;
  display: inline-flex;
  align-items: baseline;
  line-height: 1;
}

.nav__logo--lg { font-size: 3rem; }

.nav__logo-a {
  background: var(--gradient-gold-shine);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav__logo-8 {
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav__brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.nav__brand-zh {
  font-family: var(--font-zh-serif);
  font-size: var(--fs-base);
  font-weight: var(--fw-medium);
  color: var(--color-cream);
  letter-spacing: 0.1em;
}

.nav__brand-en {
  font-size: 0.625rem;
  letter-spacing: 0.3em;
  color: var(--color-gold-400);
  text-transform: uppercase;
  margin-top: 2px;
}

.nav__menu {
  display: flex;
  align-items: center;
  gap: var(--s-2);
}

.nav__link {
  position: relative;
  padding: var(--s-2) var(--s-4);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--color-ink-50);
  letter-spacing: 0.05em;
  border-radius: var(--r-pill);
  transition: all var(--t-fast) var(--ease-out);
}

.nav__link::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  width: 0;
  height: 1px;
  background: var(--color-gold-300);
  transform: translateX(-50%);
  transition: width var(--t-base) var(--ease-out);
}

.nav__link:hover { color: var(--color-gold-200); }
.nav__link:hover::after { width: 60%; }

.nav__link--cta {
  margin-left: var(--s-3);
  padding: var(--s-3) var(--s-6);
  background: var(--gradient-gold);
  color: var(--color-ink-900) !important;
  font-weight: var(--fw-semibold);
}
.nav__link--cta::after { display: none; }
.nav__link--cta:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-gold);
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 4px;
  padding: var(--s-2);
  z-index: 120;
  background: transparent;
  border: 0;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.nav__toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--color-cream);
  transition: all var(--t-base) var(--ease-out);
  transform-origin: center;
}
.nav__toggle.is-open span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
.nav__toggle.is-open span:nth-child(2) { opacity: 0; }
.nav__toggle.is-open span:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }

/* Backdrop overlay — luxe radial gradient, soft gold spill from drawer */
.nav__overlay {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse at 100% 0%, rgba(201,169,110,0.14) 0%, rgba(0,0,0,0.55) 38%, rgba(0,0,0,0.82) 100%);
  backdrop-filter: blur(6px) saturate(120%);
  -webkit-backdrop-filter: blur(6px) saturate(120%);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--t-base) var(--ease-out), visibility 0s linear var(--t-base);
  z-index: 105;
}
.nav__overlay.is-active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transition: opacity var(--t-base) var(--ease-out);
}

/* Mobile-only drawer chrome — hide on desktop */
.nav__drawer-head,
.nav__drawer-foot { display: none; }
.nav__drawer-list { display: contents; }
.nav__link-num,
.nav__link-en { display: none; }

@media (max-width: 1024px) {
  .nav__toggle { display: flex; }

  /* ===== Drawer container ===== */
  .nav__menu {
    position: fixed;
    top: 0;
    right: 0;
    height: 100vh;
    height: 100dvh;
    width: min(88vw, 380px);
    /* Layered luxury: deep ink + corner gold glow */
    background:
      radial-gradient(circle at 100% 0%, rgba(201,169,110,0.20) 0%, transparent 42%),
      radial-gradient(circle at 0% 100%, rgba(201,169,110,0.07) 0%, transparent 50%),
      linear-gradient(180deg, rgba(15,15,15,0.985) 0%, rgba(8,8,8,0.985) 100%);
    -webkit-backdrop-filter: blur(28px) saturate(160%);
    backdrop-filter: blur(28px) saturate(160%);
    border-left: 1px solid rgba(201,169,110,0.25);
    box-shadow:
      -32px 0 64px rgba(0,0,0,0.6),
      inset 1px 0 0 rgba(255,255,255,0.04);
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0;
    padding: 0;
    transform: translateX(100%);
    visibility: hidden;
    transition: transform var(--t-slow) var(--ease-luxe), visibility 0s linear var(--t-slow);
    overflow-y: auto;
    overflow-x: hidden;
    -webkit-overflow-scrolling: touch;
    z-index: 115;
  }
  .nav__menu::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg,
      transparent 0%,
      rgba(201,169,110,0) 6%,
      var(--color-gold-400) 50%,
      rgba(201,169,110,0) 94%,
      transparent 100%);
    opacity: 0.75;
    z-index: 2;
  }
  .nav__menu.is-open {
    transform: translateX(0);
    visibility: visible;
    transition: transform var(--t-slow) var(--ease-luxe), visibility 0s linear 0s;
  }

  /* ===== Drawer head — minimal: only close button on the right ===== */
  .nav__drawer-head {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: var(--s-3);
    padding: 18px var(--s-5) 14px;
    position: relative;
    z-index: 1;
    flex-shrink: 0;
  }
  .nav__drawer-logo,
  .nav__drawer-tag { display: none; }
  .nav__drawer-close {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: transparent;
    border: 1px solid rgba(201,169,110,0.22);
    color: var(--color-gold-300);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    transition: transform var(--t-base) var(--ease-out),
                background-color var(--t-fast) var(--ease-out),
                border-color var(--t-fast) var(--ease-out),
                color var(--t-fast) var(--ease-out);
    flex-shrink: 0;
    padding: 0;
  }
  .nav__drawer-close:hover,
  .nav__drawer-close:active {
    background: rgba(201,169,110,0.10);
    border-color: var(--color-gold-400);
    color: var(--color-gold-200);
    transform: rotate(90deg);
  }

  /* ===== Drawer link list — clean simple list ===== */
  .nav__drawer-list {
    display: flex;
    flex-direction: column;
    padding: 64px 0 var(--s-2);   /* 64px top reserves space for fixed header / hamburger × */
    position: relative;
    z-index: 1;
    flex: 0 0 auto;
  }

  .nav__link {
    position: relative;
    display: block;
    width: 100%;
    padding: 14px var(--s-6);
    border-radius: 0;
    border-bottom: 0;
    color: var(--color-cream);
    font-family: var(--font-zh-serif);
    font-weight: var(--fw-regular);
    font-size: 1rem;
    letter-spacing: 0.18em;
    overflow: hidden;
    text-align: left;
    /* stagger entrance — initial state */
    opacity: 0;
    transform: translateX(24px);
    transition:
      opacity 0.45s var(--ease-out),
      transform 0.55s var(--ease-luxe),
      background-color var(--t-fast) var(--ease-out),
      color var(--t-fast) var(--ease-out);
  }
  .nav__link::after { display: none; }
  /* Left gold accent bar — grows on hover */
  .nav__link::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    width: 2px;
    height: 0;
    background: var(--gradient-gold);
    transform: translateY(-50%);
    transition: height var(--t-base) var(--ease-out);
    border-radius: 0 2px 2px 0;
  }
  .nav__link:hover::before,
  .nav__link:active::before { height: 50%; }
  .nav__link:hover,
  .nav__link:active {
    background: linear-gradient(90deg, rgba(201,169,110,0.08) 0%, rgba(201,169,110,0) 80%);
    color: var(--color-gold-200);
  }

  /* Stagger menu items in when drawer opens */
  .nav__menu.is-open .nav__link {
    opacity: 1;
    transform: translateX(0);
  }
  .nav__menu.is-open .nav__link[data-i="1"] { transition-delay: 0.12s; }
  .nav__menu.is-open .nav__link[data-i="2"] { transition-delay: 0.18s; }
  .nav__menu.is-open .nav__link[data-i="3"] { transition-delay: 0.24s; }
  .nav__menu.is-open .nav__link[data-i="4"] { transition-delay: 0.30s; }
  .nav__menu.is-open .nav__link[data-i="5"] { transition-delay: 0.36s; }
  .nav__menu.is-open .nav__link[data-i="6"] { transition-delay: 0.46s; }

  /* ===== CTA — compact gold button, not a giant bar ===== */
  .nav__link--cta {
    display: block;
    margin: var(--s-4) var(--s-6) var(--s-6);
    padding: 13px var(--s-5);
    width: auto;
    background: var(--gradient-gold);
    color: var(--color-ink-900) !important;
    font-family: var(--font-zh-serif);
    font-size: 0.875rem;
    font-weight: var(--fw-semibold);
    letter-spacing: 0.32em;
    border-radius: var(--r-sm);
    text-align: center;
    overflow: hidden;
    box-shadow: 0 10px 26px -8px rgba(201,169,110,0.45);
    border: 0;
  }
  .nav__link--cta::before { display: none; }
  .nav__link--cta::after {
    content: '';
    display: block !important;
    position: absolute;
    top: 0; left: -120%;
    width: 55%;
    height: 100%;
    background: linear-gradient(90deg, transparent 0%, rgba(255,255,255,0.4) 50%, transparent 100%);
    transition: left 0.7s var(--ease-out);
    pointer-events: none;
  }
  .nav__link--cta:hover,
  .nav__link--cta:active {
    background: var(--gradient-gold);
    color: var(--color-ink-900) !important;
    transform: none;
    box-shadow: 0 14px 32px -6px rgba(201,169,110,0.55);
  }
  .nav__link--cta:hover::after,
  .nav__link--cta:active::after { left: 150%; }
}

/* Body lock helper — prevents scroll-through on mobile */
body.nav-open { overflow: hidden; }
@media (max-width: 1024px) {
  body.nav-open { position: fixed; inset: 0; width: 100%; }
}

/* ==========================================================
   7. Hero Section
   ========================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  padding-top: calc(var(--nav-h) + var(--s-12));
  padding-bottom: var(--s-20);
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--color-ink-900);
}

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

.hero__pattern {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(201,169,110,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201,169,110,0.04) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
}

.hero__glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.4;
  animation: heroGlow 12s ease-in-out infinite;
}
.hero__glow--1 {
  width: 600px; height: 600px;
  top: -200px; right: -150px;
  background: radial-gradient(circle, rgba(201,169,110,0.4), transparent 70%);
}
.hero__glow--2 {
  width: 500px; height: 500px;
  bottom: -150px; left: -100px;
  background: radial-gradient(circle, rgba(122,95,46,0.4), transparent 70%);
  animation-delay: -6s;
}

@keyframes heroGlow {
  0%, 100% { transform: translate(0, 0) scale(1); opacity: 0.4; }
  50% { transform: translate(40px, -30px) scale(1.1); opacity: 0.6; }
}

.hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-12);
  align-items: center;
}

@media (min-width: 1024px) {
  .hero__inner {
    grid-template-columns: 1.1fr 1fr;
    gap: var(--s-16);
  }
}

.hero__content { animation: fadeUp 1s var(--ease-luxe) 0.2s both; }

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

.hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--s-3);
  font-size: var(--fs-xs);
  font-weight: var(--fw-medium);
  letter-spacing: 0.3em;
  color: var(--color-gold-400);
  margin-bottom: var(--s-6);
  text-transform: uppercase;
}

.hero__line {
  width: 40px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-gold-400));
}
.hero__line:last-child {
  background: linear-gradient(90deg, var(--color-gold-400), transparent);
}

.hero__title {
  font-family: var(--font-zh-serif);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: var(--fw-semibold);
  line-height: 1.1;
  color: var(--color-cream);
  letter-spacing: 0.04em;
  margin-bottom: var(--s-8);
}

.hero__title-line {
  display: block;
  opacity: 0;
  animation: titleReveal 1s var(--ease-luxe) forwards;
}
.hero__title-line:nth-child(1) { animation-delay: 0.4s; }
.hero__title-line:nth-child(2) { animation-delay: 0.6s; }
.hero__title-line:nth-child(3) { animation-delay: 0.8s; }

@keyframes titleReveal {
  from { opacity: 0; transform: translateY(40px); filter: blur(8px); }
  to { opacity: 1; transform: translateY(0); filter: blur(0); }
}

.hero__title-line--gold {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: var(--fw-semibold);
  background: var(--gradient-gold-shine);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  font-size: 0.95em;
}

.hero__subtitle {
  font-size: var(--fs-lg);
  line-height: var(--lh-relaxed);
  color: var(--color-ink-100);
  max-width: 580px;
  margin-bottom: var(--s-10);
  opacity: 0;
  animation: fadeUp 1s var(--ease-luxe) 1s forwards;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-4);
  margin-bottom: var(--s-12);
  opacity: 0;
  animation: fadeUp 1s var(--ease-luxe) 1.2s forwards;
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--s-6) var(--s-8);
  padding-top: var(--s-8);
  border-top: var(--border-faint);
  opacity: 0;
  animation: fadeUp 1s var(--ease-luxe) 1.4s forwards;
}

@media (min-width: 640px) {
  .hero__stats { grid-template-columns: repeat(4, 1fr); }
}

.hero__stat { position: relative; }

.hero__stat-num {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: var(--fw-semibold);
  background: var(--gradient-gold-shine);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
  margin-bottom: var(--s-2);
}
.hero__stat-num sup {
  font-size: 0.5em;
  font-weight: var(--fw-regular);
}

.hero__stat-label {
  font-size: var(--fs-xs);
  color: var(--color-ink-100);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* Hero Visual */
.hero__visual {
  position: relative;
  height: 480px;
  display: none;
  animation: fadeIn 1.2s var(--ease-luxe) 0.6s both;
}

@media (min-width: 1024px) {
  .hero__visual { display: block; }
}

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.hero__medallion {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 360px;
  height: 360px;
  animation: rotateSlow 60s linear infinite;
  filter: drop-shadow(0 0 40px rgba(201,169,110,0.3));
}

@keyframes rotateSlow { to { transform: translate(-50%, -50%) rotate(360deg); } }

.hero__card {
  position: absolute;
  background: linear-gradient(135deg, rgba(26,26,26,0.9), rgba(34,34,34,0.7));
  backdrop-filter: blur(20px);
  border: 1px solid rgba(201,169,110,0.25);
  border-radius: var(--r-lg);
  padding: var(--s-5) var(--s-6);
  box-shadow: 0 12px 40px rgba(0,0,0,0.4);
  animation: floatCard 6s ease-in-out infinite;
  min-width: 160px;
}

.hero__card--1 {
  top: 8%; left: 0;
  animation-delay: 0s;
}
.hero__card--2 {
  top: 38%; right: 0;
  animation-delay: -2s;
}
.hero__card--3 {
  bottom: 8%; left: 10%;
  animation-delay: -4s;
}

@keyframes floatCard {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-16px); }
}

.hero__card-icon {
  font-size: 1.5rem;
  color: var(--color-gold-300);
  margin-bottom: var(--s-2);
}

.hero__card-title {
  font-family: var(--font-zh-serif);
  font-size: var(--fs-md);
  font-weight: var(--fw-semibold);
  color: var(--color-cream);
  margin-bottom: var(--s-1);
}

.hero__card-meta {
  font-size: var(--fs-xs);
  color: var(--color-ink-100);
  letter-spacing: 0.05em;
}

/* Scroll Indicator */
.hero__scroll {
  position: absolute;
  bottom: var(--s-8);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--s-3);
  color: var(--color-gold-400);
  font-size: 0.625rem;
  letter-spacing: 0.4em;
  z-index: 2;
  opacity: 0;
  animation: fadeIn 1s var(--ease-luxe) 1.8s forwards;
}

.hero__scroll-text { writing-mode: vertical-rl; }

.hero__scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(180deg, var(--color-gold-400), transparent);
  position: relative;
  overflow: hidden;
}
.hero__scroll-line::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 50%;
  background: linear-gradient(180deg, transparent, var(--color-gold-200));
  animation: scrollDown 2s ease-in-out infinite;
}

@keyframes scrollDown {
  0% { transform: translateY(-100%); }
  100% { transform: translateY(200%); }
}

/* ==========================================================
   8. Positioning Section
   ========================================================== */
.positioning {
  background: linear-gradient(180deg, var(--color-ink-900) 0%, var(--color-ink-800) 100%);
  position: relative;
}

.positioning::before {
  content: '';
  position: absolute;
  top: 0; left: 50%;
  transform: translateX(-50%);
  width: 80%;
  max-width: 800px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(201,169,110,0.4), transparent);
}

.positioning__lead {
  max-width: 880px;
  margin-bottom: var(--s-16);
}

.positioning__lead p {
  font-size: var(--fs-lg);
  line-height: var(--lh-relaxed);
  color: var(--color-ink-50);
  margin-bottom: var(--s-4);
}

.positioning__lead strong {
  color: var(--color-gold-200);
  font-weight: var(--fw-semibold);
}

.positioning__lead em {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: var(--fw-medium);
  color: var(--color-cream);
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.positioning__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-6);
  margin-bottom: var(--s-16);
}

@media (min-width: 640px) { .positioning__grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .positioning__grid { grid-template-columns: repeat(4, 1fr); } }

.diff-card {
  position: relative;
  padding: var(--s-8) var(--s-6);
  background: linear-gradient(180deg, rgba(26,26,26,0.6), rgba(17,17,17,0.6));
  border: 1px solid rgba(201,169,110,0.12);
  border-radius: var(--r-lg);
  transition: all var(--t-base) var(--ease-luxe);
  overflow: hidden;
}

.diff-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-gold-400), transparent);
  opacity: 0;
  transition: opacity var(--t-base);
}

.diff-card:hover {
  transform: translateY(-6px);
  border-color: rgba(201,169,110,0.3);
  background: linear-gradient(180deg, rgba(34,34,34,0.8), rgba(26,26,26,0.8));
  box-shadow: 0 24px 60px rgba(0,0,0,0.4);
}

.diff-card:hover::before { opacity: 1; }

.diff-card__num {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  font-weight: var(--fw-light);
  font-style: italic;
  color: var(--color-gold-500);
  line-height: 1;
  margin-bottom: var(--s-6);
  opacity: 0.6;
}

.diff-card__title {
  font-family: var(--font-zh-serif);
  font-size: var(--fs-xl);
  font-weight: var(--fw-semibold);
  color: var(--color-cream);
  margin-bottom: var(--s-3);
  letter-spacing: 0.05em;
}

.diff-card__text {
  font-size: var(--fs-sm);
  line-height: var(--lh-relaxed);
  color: var(--color-ink-100);
}

.diff-card__line {
  width: 30px;
  height: 1px;
  background: var(--color-gold-400);
  margin-top: var(--s-6);
  transition: width var(--t-base) var(--ease-luxe);
}

.diff-card:hover .diff-card__line { width: 60px; }

.positioning__audience {
  padding: var(--s-10) var(--s-8);
  background: linear-gradient(135deg, rgba(26,26,26,0.8), rgba(17,17,17,0.8));
  border: 1px solid rgba(201,169,110,0.18);
  border-radius: var(--r-xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.positioning__audience::before,
.positioning__audience::after {
  content: '';
  position: absolute;
  width: 200px; height: 200px;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.2;
}

.positioning__audience::before {
  background: var(--color-gold-400);
  top: -100px; left: -50px;
}
.positioning__audience::after {
  background: var(--color-gold-700);
  bottom: -100px; right: -50px;
}

.audience__label {
  font-size: var(--fs-xs);
  letter-spacing: 0.3em;
  color: var(--color-gold-400);
  margin-bottom: var(--s-6);
  text-transform: uppercase;
  position: relative;
}

.audience__tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--s-3);
  margin-bottom: var(--s-8);
  position: relative;
}

.audience__tag {
  padding: var(--s-3) var(--s-5);
  background: rgba(201,169,110,0.08);
  border: 1px solid rgba(201,169,110,0.3);
  border-radius: var(--r-pill);
  font-size: var(--fs-sm);
  color: var(--color-cream);
  font-weight: var(--fw-medium);
  letter-spacing: 0.05em;
  transition: all var(--t-base) var(--ease-out);
}

.audience__tag:hover {
  background: rgba(201,169,110,0.18);
  border-color: var(--color-gold-300);
  transform: translateY(-2px);
}

.audience__needs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--s-3);
  font-size: var(--fs-sm);
  color: var(--color-ink-100);
  letter-spacing: 0.05em;
  position: relative;
}

.audience__needs .dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-gold-400);
}

/* ==========================================================
   9. Services Section
   ========================================================== */
.services {
  background: var(--color-ink-900);
  position: relative;
}

.services__bg {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 600px;
  background: radial-gradient(ellipse at top, rgba(201,169,110,0.08) 0%, transparent 60%);
  pointer-events: none;
}

.services__tabs {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--s-2);
  margin-bottom: var(--s-12);
  padding: var(--s-2);
  background: rgba(26,26,26,0.6);
  border: 1px solid rgba(201,169,110,0.15);
  border-radius: var(--r-xl);
  position: relative;
}

@media (min-width: 640px) { .services__tabs { grid-template-columns: repeat(4, 1fr); } }
@media (min-width: 1024px) { .services__tabs { grid-template-columns: repeat(8, 1fr); gap: var(--s-1); } }

.services__tab {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--s-1);
  padding: var(--s-4) var(--s-2);
  background: transparent;
  color: var(--color-ink-100);
  font-family: var(--font-sans);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  border-radius: var(--r-lg);
  transition: all var(--t-base) var(--ease-out);
  position: relative;
  border: 1px solid transparent;
  letter-spacing: 0.05em;
}

.services__tab:hover {
  color: var(--color-cream);
  background: rgba(201,169,110,0.06);
}

.services__tab.is-active {
  background: linear-gradient(135deg, rgba(201,169,110,0.18), rgba(201,169,110,0.08));
  color: var(--color-gold-200);
  border-color: rgba(201,169,110,0.35);
  box-shadow: 0 4px 20px rgba(201,169,110,0.2);
}

.services__tab-num {
  font-family: var(--font-serif);
  font-size: var(--fs-xs);
  font-style: italic;
  color: var(--color-gold-500);
  opacity: 0.7;
}

.services__tab.is-active .services__tab-num { opacity: 1; }

.services__panels {
  position: relative;
  min-height: 500px;
}

.services__panel {
  display: none;
  animation: panelFade 0.5s var(--ease-luxe);
}

.services__panel.is-active { display: block; }

@keyframes panelFade {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.services__panel-head {
  margin-bottom: var(--s-10);
  padding-bottom: var(--s-6);
  border-bottom: 1px solid rgba(201,169,110,0.15);
}

.services__panel-num {
  display: inline-block;
  font-family: var(--font-serif);
  font-size: var(--fs-sm);
  font-style: italic;
  color: var(--color-gold-400);
  letter-spacing: 0.2em;
  margin-bottom: var(--s-3);
}

.services__panel-title {
  font-family: var(--font-zh-serif);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: var(--fw-semibold);
  color: var(--color-cream);
  margin-bottom: var(--s-3);
  letter-spacing: 0.03em;
}

.services__panel-sub {
  font-size: var(--fs-md);
  color: var(--color-ink-100);
  line-height: var(--lh-relaxed);
}

.services__items {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-5);
}

@media (min-width: 768px) { .services__items { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1280px) { .services__items { grid-template-columns: repeat(3, 1fr); } }

.service-item {
  position: relative;
  padding: var(--s-6);
  background: linear-gradient(180deg, rgba(26,26,26,0.6), rgba(17,17,17,0.4));
  border: 1px solid rgba(201,169,110,0.1);
  border-radius: var(--r-lg);
  transition: all var(--t-base) var(--ease-luxe);
  overflow: hidden;
}

.service-item::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 0;
  height: 100%;
  background: linear-gradient(135deg, rgba(201,169,110,0.08), transparent);
  transition: width var(--t-slow) var(--ease-luxe);
  pointer-events: none;
}

.service-item:hover {
  transform: translateY(-4px);
  border-color: rgba(201,169,110,0.3);
  box-shadow: 0 16px 40px rgba(0,0,0,0.4);
}

.service-item:hover::before { width: 100%; }

.service-item__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin-bottom: var(--s-4);
  background: linear-gradient(135deg, rgba(201,169,110,0.2), rgba(201,169,110,0.05));
  border: 1px solid rgba(201,169,110,0.3);
  border-radius: var(--r-md);
  font-size: 1.5rem;
  color: var(--color-gold-300);
  position: relative;
  z-index: 1;
}

.service-item h4 {
  font-family: var(--font-zh-serif);
  font-size: var(--fs-lg);
  font-weight: var(--fw-semibold);
  color: var(--color-cream);
  margin-bottom: var(--s-3);
  position: relative;
  letter-spacing: 0.05em;
}

.service-item p {
  font-size: var(--fs-sm);
  line-height: var(--lh-relaxed);
  color: var(--color-ink-100);
  position: relative;
}

/* ==========================================================
   10. Butler Section
   ========================================================== */
.butler {
  background: linear-gradient(180deg, var(--color-ink-800) 0%, var(--color-ink-900) 100%);
  position: relative;
  overflow: hidden;
}

.butler::before {
  content: '';
  position: absolute;
  top: 10%; right: -200px;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(201,169,110,0.12) 0%, transparent 60%);
  filter: blur(40px);
  pointer-events: none;
}

.butler__hero {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-8);
  padding: var(--s-10);
  margin-bottom: var(--s-12);
  background: linear-gradient(135deg, rgba(201,169,110,0.08) 0%, rgba(17,17,17,0.4) 100%);
  border: 1px solid rgba(201,169,110,0.2);
  border-radius: var(--r-2xl);
  position: relative;
  overflow: hidden;
}

@media (min-width: 1024px) {
  .butler__hero { grid-template-columns: 1.5fr 1fr; align-items: center; gap: var(--s-12); }
}

.butler__hero-text {
  position: relative;
  padding: var(--s-6) 0;
}

.butler__quote-mark {
  font-family: var(--font-serif);
  font-size: 6rem;
  line-height: 0.5;
  color: var(--color-gold-400);
  opacity: 0.3;
  position: absolute;
  top: 0;
  left: -10px;
}
.butler__quote-mark--close {
  left: auto;
  right: 0;
  top: auto;
  bottom: 0;
  transform: scaleX(-1);
}

.butler__quote {
  font-family: var(--font-zh-serif);
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  line-height: var(--lh-relaxed);
  color: var(--color-cream);
  font-weight: var(--fw-regular);
  position: relative;
  z-index: 1;
  padding: 0 var(--s-2);
}

.butler__quote strong {
  color: var(--color-gold-200);
  font-weight: var(--fw-semibold);
}

.butler__hero-meta {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--s-3);
  padding: var(--s-6);
  background: rgba(10,10,10,0.4);
  border-radius: var(--r-lg);
  border: 1px solid rgba(201,169,110,0.15);
}

.butler__meta-item { text-align: center; }

.butler__meta-num {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: var(--fw-semibold);
  background: var(--gradient-gold-shine);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
  margin-bottom: var(--s-2);
}
.butler__meta-num span {
  font-size: 0.4em;
  font-weight: var(--fw-regular);
  -webkit-text-fill-color: var(--color-gold-300);
}

.butler__meta-label {
  font-size: var(--fs-xs);
  color: var(--color-ink-100);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.butler__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-5);
}

@media (min-width: 640px) { .butler__grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .butler__grid { grid-template-columns: repeat(3, 1fr); } }

.butler-card {
  position: relative;
  padding: var(--s-8) var(--s-6);
  background: linear-gradient(180deg, rgba(26,26,26,0.7), rgba(17,17,17,0.5));
  border: 1px solid rgba(201,169,110,0.12);
  border-radius: var(--r-lg);
  transition: all var(--t-base) var(--ease-luxe);
  overflow: hidden;
}

.butler-card::after {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 80px; height: 80px;
  background: radial-gradient(circle at top right, rgba(201,169,110,0.15), transparent 70%);
  pointer-events: none;
}

.butler-card:hover {
  transform: translateY(-6px);
  border-color: rgba(201,169,110,0.35);
  background: linear-gradient(180deg, rgba(34,34,34,0.8), rgba(26,26,26,0.6));
  box-shadow: 0 20px 50px rgba(0,0,0,0.5);
}

.butler-card__no {
  font-family: var(--font-serif);
  font-size: 1rem;
  font-style: italic;
  color: var(--color-gold-400);
  letter-spacing: 0.2em;
  margin-bottom: var(--s-4);
}

.butler-card__title {
  font-family: var(--font-zh-serif);
  font-size: var(--fs-xl);
  font-weight: var(--fw-semibold);
  color: var(--color-cream);
  margin-bottom: var(--s-3);
  letter-spacing: 0.05em;
}

.butler-card__text {
  font-size: var(--fs-sm);
  line-height: var(--lh-relaxed);
  color: var(--color-ink-100);
  margin-bottom: var(--s-5);
}

.butler-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-2);
}

.butler-card__tags span {
  padding: var(--s-1) var(--s-3);
  background: rgba(201,169,110,0.06);
  border: 1px solid rgba(201,169,110,0.2);
  border-radius: var(--r-pill);
  font-size: var(--fs-xs);
  color: var(--color-gold-200);
  letter-spacing: 0.05em;
}

.butler-card--featured {
  background: linear-gradient(135deg, rgba(201,169,110,0.12) 0%, rgba(26,26,26,0.8) 100%);
  border-color: rgba(201,169,110,0.4);
  box-shadow: 0 12px 40px rgba(201,169,110,0.15);
}

.butler-card--featured::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 60%, rgba(201,169,110,0.15));
  pointer-events: none;
}

.butler-card__badge {
  position: absolute;
  top: var(--s-4); right: var(--s-4);
  padding: var(--s-1) var(--s-3);
  background: var(--gradient-gold);
  color: var(--color-ink-900);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  border-radius: var(--r-pill);
  letter-spacing: 0.1em;
  z-index: 2;
}

/* ==========================================================
   11. Membership Section
   ========================================================== */
.membership {
  background: var(--color-ink-900);
  position: relative;
  overflow: hidden;
}

.membership__bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center top, rgba(201,169,110,0.1) 0%, transparent 50%);
  pointer-events: none;
}

.tiers {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-6);
  align-items: stretch;
  position: relative;
}

@media (min-width: 1024px) {
  .tiers {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--s-5);
    align-items: center;
  }
}

.tier {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: var(--s-8) var(--s-6);
  background: linear-gradient(180deg, rgba(26,26,26,0.7), rgba(17,17,17,0.5));
  border: 1px solid rgba(201,169,110,0.18);
  border-radius: var(--r-xl);
  transition: all var(--t-base) var(--ease-luxe);
  overflow: hidden;
}

.tier::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-gold-400), transparent);
  opacity: 0.5;
}

.tier:hover {
  transform: translateY(-8px);
  border-color: rgba(201,169,110,0.4);
  box-shadow: 0 24px 60px rgba(0,0,0,0.5);
}

.tier__ribbon {
  position: absolute;
  top: var(--s-5); right: -30px;
  background: var(--gradient-gold);
  color: var(--color-ink-900);
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  letter-spacing: 0.2em;
  padding: var(--s-1) var(--s-8);
  transform: rotate(45deg);
  z-index: 2;
}

.tier__ribbon--gold {
  background: var(--gradient-gold-shine);
}

.tier__header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: var(--s-3);
}

.tier__rank {
  font-family: var(--font-serif);
  font-size: var(--fs-xs);
  font-style: italic;
  letter-spacing: 0.3em;
  color: var(--color-gold-500);
  text-transform: uppercase;
}

.tier__num {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: var(--fw-light);
  color: var(--color-gold-500);
  opacity: 0.6;
}

.tier__name {
  font-family: var(--font-zh-serif);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: var(--fw-semibold);
  color: var(--color-cream);
  margin-bottom: var(--s-1);
  letter-spacing: 0.05em;
}

.tier__level {
  display: inline-block;
  font-size: var(--fs-xs);
  color: var(--color-gold-300);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  margin-bottom: var(--s-4);
}

.tier__audience {
  font-size: var(--fs-sm);
  color: var(--color-ink-100);
  line-height: var(--lh-relaxed);
  margin-bottom: var(--s-5);
  min-height: 3em;
}

.tier__divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(201,169,110,0.3), transparent);
  margin-bottom: var(--s-5);
}

.tier__label {
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  color: var(--color-gold-300);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  margin-bottom: var(--s-3);
}

.tier__list {
  flex: 1;
  margin-bottom: var(--s-6);
}

.tier__list li {
  position: relative;
  padding-left: var(--s-6);
  margin-bottom: var(--s-3);
  font-size: var(--fs-sm);
  color: var(--color-ink-50);
  line-height: var(--lh-normal);
}

.tier__list li::before {
  content: '◆';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--color-gold-400);
  font-size: 0.7em;
}

.tier__value {
  padding: var(--s-4);
  background: rgba(201,169,110,0.05);
  border: 1px solid rgba(201,169,110,0.15);
  border-radius: var(--r-md);
  margin-bottom: var(--s-6);
}

.tier__value-label {
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  color: var(--color-gold-300);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: var(--s-2);
}

.tier__value p {
  font-size: var(--fs-sm);
  color: var(--color-cream);
  line-height: var(--lh-relaxed);
}

.tier--premium {
  background: linear-gradient(180deg, rgba(58,44,20,0.6) 0%, rgba(26,26,26,0.8) 100%);
  border-color: rgba(201,169,110,0.4);
  box-shadow: 0 20px 60px rgba(201,169,110,0.15);
  transform: scale(1.02);
  z-index: 1;
}

@media (min-width: 1024px) {
  .tier--premium { transform: scale(1.04); }
}

.tier--premium:hover { transform: scale(1.06) translateY(-8px); }

.tier--diamond {
  background: linear-gradient(180deg, rgba(26,26,26,0.8) 0%, rgba(10,10,10,0.9) 100%);
  border-color: rgba(201,169,110,0.3);
}

.tier--diamond::before { opacity: 0.8; }

/* ==========================================================
   12. Standards Section
   ========================================================== */
.standards {
  background: var(--color-ink-50);
}

.standards__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-6);
  margin-bottom: var(--s-16);
}

@media (min-width: 640px) { .standards__grid { grid-template-columns: repeat(2, 1fr); } }

.standard {
  position: relative;
  padding: var(--s-8) var(--s-6);
  background: var(--color-cream);
  border: 1px solid rgba(201,169,110,0.2);
  border-radius: var(--r-lg);
  box-shadow: 0 4px 30px rgba(0,0,0,0.04);
  transition: all var(--t-base) var(--ease-luxe);
  overflow: hidden;
}

.standard::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 60px; height: 1px;
  background: var(--gradient-gold);
}

.standard:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 50px rgba(0,0,0,0.1);
  border-color: rgba(201,169,110,0.5);
}

.standard__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--s-5);
}

.standard__icon {
  font-size: 2.5rem;
  color: var(--color-gold-500);
  font-family: var(--font-serif);
  line-height: 1;
}

.standard__no {
  font-family: var(--font-serif);
  font-size: 2rem;
  font-weight: var(--fw-light);
  color: var(--color-gold-500);
  opacity: 0.4;
  font-style: italic;
}

.standard__title {
  font-family: var(--font-zh-serif);
  font-size: var(--fs-2xl);
  font-weight: var(--fw-semibold);
  color: var(--color-ink-900);
  margin-bottom: var(--s-5);
  letter-spacing: 0.05em;
}

.standard__metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--s-3);
  margin-bottom: var(--s-5);
  padding-bottom: var(--s-5);
  border-bottom: 1px solid rgba(201,169,110,0.2);
}

.standard__metric { text-align: center; }

.standard__metric-num {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: var(--fw-medium);
  color: var(--color-ink-900);
  line-height: 1.1;
  margin-bottom: var(--s-1);
}

.standard__metric-num small {
  font-size: 0.6em;
  color: var(--color-gold-500);
  font-weight: var(--fw-light);
  margin-left: 2px;
}

.standard__metric-label {
  display: block;
  font-size: var(--fs-xs);
  color: var(--color-ink-200);
  letter-spacing: 0.05em;
}

.standard__text {
  font-size: var(--fs-sm);
  color: var(--color-ink-200);
  line-height: var(--lh-relaxed);
}

/* Team */
.team {
  padding: var(--s-10) var(--s-6);
  background: var(--color-ink-900);
  border-radius: var(--r-xl);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.team::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-gold-400), transparent);
}

.team__title {
  font-family: var(--font-zh-serif);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: var(--fw-semibold);
  color: var(--color-cream);
  margin-bottom: var(--s-3);
  letter-spacing: 0.05em;
}

.team__lead {
  font-size: var(--fs-base);
  color: var(--color-ink-100);
  margin-bottom: var(--s-8);
}

.team__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-4);
}

@media (min-width: 640px) { .team__grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .team__grid { grid-template-columns: repeat(4, 1fr); } }

.team__member {
  padding: var(--s-6) var(--s-4);
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(201,169,110,0.15);
  border-radius: var(--r-md);
  transition: all var(--t-base) var(--ease-luxe);
}

.team__member:hover {
  background: rgba(201,169,110,0.05);
  border-color: rgba(201,169,110,0.4);
  transform: translateY(-4px);
}

.team__icon {
  font-size: 2rem;
  color: var(--color-gold-400);
  margin-bottom: var(--s-3);
  font-family: var(--font-serif);
}

.team__member h4 {
  font-size: var(--fs-base);
  font-weight: var(--fw-semibold);
  color: var(--color-cream);
  margin-bottom: var(--s-2);
  letter-spacing: 0.05em;
}

.team__member p {
  font-size: var(--fs-sm);
  color: var(--color-ink-100);
  line-height: var(--lh-relaxed);
}

/* ==========================================================
   13. Advantages Section
   ========================================================== */
.advantages {
  background: var(--color-cream);
  position: relative;
}

.advantages::before {
  content: '';
  position: absolute;
  top: 50%; left: 0;
  width: 200px; height: 200px;
  background: radial-gradient(circle, rgba(201,169,110,0.1) 0%, transparent 70%);
  transform: translateY(-50%);
  pointer-events: none;
}

.advantages__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-6);
  position: relative;
}

@media (min-width: 768px) { .advantages__grid { grid-template-columns: repeat(2, 1fr); } }

.advantage {
  position: relative;
  padding: var(--s-8) var(--s-6) var(--s-6);
  background: var(--color-cream);
  border: 1px solid rgba(201,169,110,0.2);
  border-radius: var(--r-lg);
  box-shadow: 0 4px 30px rgba(0,0,0,0.04);
  transition: all var(--t-base) var(--ease-luxe);
}

.advantage:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 50px rgba(201,169,110,0.15);
  border-color: var(--color-gold-500);
}

.advantage__num {
  font-family: var(--font-serif);
  font-size: 3.5rem;
  font-weight: var(--fw-light);
  color: var(--color-gold-500);
  opacity: 0.25;
  line-height: 1;
  margin-bottom: var(--s-3);
}

.advantage__title {
  font-family: var(--font-zh-serif);
  font-size: var(--fs-2xl);
  font-weight: var(--fw-semibold);
  color: var(--color-ink-900);
  margin-bottom: var(--s-3);
  letter-spacing: 0.05em;
}

.advantage p {
  font-size: var(--fs-base);
  color: var(--color-ink-200);
  line-height: var(--lh-relaxed);
}

/* ==========================================================
   14. Apply Section
   ========================================================== */
.apply {
  position: relative;
  overflow: hidden;
  background: var(--color-ink-900);
}

.apply__bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 0%, rgba(201,169,110,0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 100%, rgba(201,169,110,0.1) 0%, transparent 50%);
  pointer-events: none;
}

.apply__inner {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  background: linear-gradient(180deg, rgba(26,26,26,0.8) 0%, rgba(17,17,17,0.9) 100%);
  border: 1px solid rgba(201,169,110,0.3);
  border-radius: var(--r-xl);
  padding: var(--s-10) var(--s-8);
  box-shadow: 0 40px 100px rgba(0,0,0,0.5);
}

@media (min-width: 768px) {
  .apply__inner { padding: var(--s-16) var(--s-12); }
}

.apply__head { text-align: center; margin-bottom: var(--s-10); }

.apply__lead {
  font-size: var(--fs-base);
  color: var(--color-ink-50);
  line-height: var(--lh-relaxed);
  max-width: 600px;
  margin: var(--s-4) auto 0;
}

.apply__form {
  display: flex;
  flex-direction: column;
  gap: var(--s-5);
}

.apply__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-5);
}

@media (min-width: 768px) { .apply__row { grid-template-columns: repeat(2, 1fr); } }

.apply__field { display: flex; flex-direction: column; }

.apply__field label {
  font-size: var(--fs-sm);
  color: var(--color-cream);
  margin-bottom: var(--s-2);
  font-weight: var(--fw-medium);
  letter-spacing: 0.05em;
}

.apply__field label span { color: var(--color-gold-400); }

.apply__field input,
.apply__field select,
.apply__field textarea {
  padding: var(--s-3) var(--s-4);
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(201,169,110,0.25);
  border-radius: var(--r-md);
  color: var(--color-cream);
  font-family: inherit;
  font-size: var(--fs-base);
  transition: all var(--t-fast) var(--ease-luxe);
}

.apply__field input::placeholder,
.apply__field textarea::placeholder { color: var(--color-ink-200); }

.apply__field input:focus,
.apply__field select:focus,
.apply__field textarea:focus {
  outline: none;
  border-color: var(--color-gold-400);
  background: rgba(201,169,110,0.05);
  box-shadow: 0 0 0 3px rgba(201,169,110,0.1);
}

.apply__field select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%23c9a96e' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--s-4) center;
  padding-right: var(--s-10);
}

.apply__field select option { background: var(--color-ink-800); color: var(--color-cream); }

.apply__field textarea { resize: vertical; min-height: 100px; }

.apply__check { margin-top: var(--s-2); }

.apply__checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--s-3);
  cursor: pointer;
  user-select: none;
  position: relative;
}

.apply__checkbox input { position: absolute; opacity: 0; pointer-events: none; }

.apply__checkbox-mark {
  flex-shrink: 0;
  width: 18px; height: 18px;
  border: 1px solid rgba(201,169,110,0.4);
  border-radius: var(--r-sm);
  background: rgba(255,255,255,0.05);
  position: relative;
  transition: all var(--t-fast) var(--ease-luxe);
  margin-top: 2px;
}

.apply__checkbox input:checked + .apply__checkbox-mark {
  background: var(--gradient-gold);
  border-color: var(--color-gold-400);
}

.apply__checkbox input:checked + .apply__checkbox-mark::after {
  content: '✓';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  color: var(--color-ink-900);
  font-size: 0.75rem;
  font-weight: var(--fw-bold);
}

.apply__checkbox span:last-child {
  font-size: var(--fs-sm);
  color: var(--color-ink-100);
  line-height: var(--lh-normal);
}

.apply__note {
  font-size: var(--fs-xs);
  color: var(--color-ink-200);
  text-align: center;
  margin-top: var(--s-3);
  line-height: var(--lh-normal);
}

/* ==========================================================
   15. Footer
   ========================================================== */
.footer {
  background: var(--color-ink-900);
  color: var(--color-cream);
  padding: var(--s-12) 0 var(--s-6);
  position: relative;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(201,169,110,0.3), transparent);
}

.footer__top {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-10);
  margin-bottom: var(--s-10);
}

@media (min-width: 768px) { .footer__top { grid-template-columns: 1.5fr 2fr; } }

.footer__brand { max-width: 360px; }

.nav__logo--lg {
  font-size: 2rem;
  margin-bottom: var(--s-4);
  display: inline-block;
}

.footer__tagline {
  font-family: var(--font-zh-serif);
  font-size: var(--fs-base);
  color: var(--color-cream);
  margin-bottom: var(--s-2);
  letter-spacing: 0.05em;
}

.footer__copy {
  font-size: var(--fs-sm);
  color: var(--color-ink-100);
  line-height: var(--lh-relaxed);
}

.footer__cols {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--s-6);
}

@media (min-width: 640px) { .footer__cols { grid-template-columns: repeat(3, 1fr); } }

.footer__col { display: flex; flex-direction: column; gap: var(--s-2); }

.footer__col h5 {
  font-family: var(--font-zh-serif);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--color-gold-300);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: var(--s-3);
}

.footer__col a {
  font-size: var(--fs-sm);
  color: var(--color-ink-50);
  text-decoration: none;
  transition: color var(--t-fast) var(--ease-luxe);
  line-height: var(--lh-relaxed);
}

.footer__col a:hover { color: var(--color-gold-400); }

.footer__bottom {
  padding-top: var(--s-6);
  border-top: 1px solid rgba(201,169,110,0.15);
  text-align: center;
}

.footer__bottom p {
  font-size: var(--fs-xs);
  color: var(--color-ink-200);
  margin-bottom: var(--s-2);
  letter-spacing: 0.05em;
}

.footer__disclaimer {
  font-size: 0.7rem;
  color: var(--color-ink-300);
  opacity: 0.7;
}

/* ==========================================================
   16. Back to Top Button
   ========================================================== */
.back-top {
  position: fixed;
  bottom: var(--s-6);
  right: var(--s-6);
  width: 48px; height: 48px;
  background: var(--gradient-gold);
  color: var(--color-ink-900);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 24px rgba(201,169,110,0.4);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--t-base) var(--ease-luxe);
  z-index: 50;
}

.back-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(201,169,110,0.6);
}

/* ==========================================================
   17. Toast Notification
   ========================================================== */
.toast {
  position: fixed;
  top: var(--s-6);
  right: var(--s-6);
  padding: var(--s-3) var(--s-5);
  background: var(--color-ink-900);
  color: var(--color-cream);
  border: 1px solid var(--color-gold-400);
  border-radius: var(--r-md);
  font-size: var(--fs-sm);
  letter-spacing: 0.05em;
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
  z-index: 100;
  opacity: 0;
  transform: translateX(100%);
  transition: all var(--t-base) var(--ease-luxe);
  max-width: 360px;
}

.toast.is-visible {
  opacity: 1;
  transform: translateX(0);
}

/* ==========================================================
   18. Animations & Reveal
   ========================================================== */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(40px); }
  to { opacity: 1; transform: translateX(0); }
}

[data-reveal] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s var(--ease-luxe), transform 0.8s var(--ease-luxe);
}

[data-reveal].is-revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================
   19. Reduced Motion
   ========================================================== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ==========================================================
   20. Focus Styles
   ========================================================== */
*:focus-visible {
  outline: 2px solid var(--color-gold-400);
  outline-offset: 3px;
}

/* ==========================================================
   21. Print
   ========================================================== */

/* ==========================================================
   23. Print
   ========================================================== */
@media print {
  .nav, .hero__scroll, .back-top, .loader, .apply { display: none !important; }
  body { background: white; color: black; }
  .section { padding: 20px 0; }
}