/* =========================================================
   玥 YUÈ — Apple-grade 视觉系统
   设计语言: 月白 / 香槟金 / 墨夜 / 大字号衬线 + 系统无衬线
   ========================================================= */

/* ---------- Reset ---------- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
ul,ol{list-style:none;}

/* ---------- Tokens ---------- */
:root{
  --ivory:        #f5f1e8;
  --ivory-deep:   #ebe5d6;
  --ink:          #14141a;
  --ink-soft:     #2a2a30;
  --gold:         #c9a96b;
  --gold-bright:  #e6c98c;
  --ember:        #a73a3a;
  --mist:         #9ca3af;

  --bg:           #faf7f0;
  --bg-deep:      #ffffff;
  --text:         #1a1a1f;
  --text-soft:    #6b6b73;
  --line:         rgba(20,20,26,.08);

  --r-sm: 12px;
  --r-md: 22px;
  --r-lg: 36px;

  --ease: cubic-bezier(.22,.61,.36,1);
  --ease-out: cubic-bezier(.16,1,.3,1);

  --maxw: 1280px;
  --pad:  clamp(20px, 4vw, 64px);

  --serif: "PingFang SC","Songti SC","Source Han Serif SC","Noto Serif SC", "Times New Roman", serif;
  --sans:  -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC", "Helvetica Neue", "Segoe UI", sans-serif;
}

body{
  font-family: var(--sans);
  background: var(--bg);
  color: var(--text);
  font-size:16px;
  line-height:1.6;
  letter-spacing:.01em;
  overflow-x:hidden;
}

/* ---------- Typography Atoms ---------- */
.eyebrow{
  font-size:13px;
  letter-spacing:.32em;
  text-transform:uppercase;
  color:var(--text-soft);
  font-weight:500;
}
.eyebrow--light{color:rgba(245,241,232,.7);}

.display{
  font-family: var(--serif);
  font-weight:600;
  font-size: clamp(64px, 11vw, 168px);
  line-height: .96;
  letter-spacing:-.02em;
  color:var(--ink);
}
.display__accent{
  background: linear-gradient(120deg, var(--gold) 0%, var(--gold-bright) 50%, var(--gold) 100%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  font-style: italic;
  display:inline-block;
}
.display--cta{ font-size: clamp(52px, 8vw, 120px); color:var(--ivory); }

.headline{
  font-family: var(--serif);
  font-weight:600;
  font-size: clamp(36px, 5.4vw, 80px);
  line-height: 1.05;
  letter-spacing:-.015em;
  color:var(--ink);
}
.headline .ink{ color:var(--ink); }
.headline .gold{
  background: linear-gradient(120deg, var(--gold) 0%, var(--gold-bright) 60%, var(--gold) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  font-style:italic;
}

.lede{
  font-size: clamp(17px, 1.4vw, 21px);
  color: var(--text-soft);
  line-height:1.7;
  max-width: 32em;
}
.lede--light{ color: rgba(245,241,232,.78); }

.section__head{
  padding: clamp(80px, 12vh, 160px) var(--pad) clamp(40px,6vh,80px);
  max-width: var(--maxw);
  margin:0 auto;
}
.section__head--center{ text-align:center; }
.section__head--center .lede{ margin: 16px auto 0; }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  height: 52px;
  padding: 0 28px;
  border-radius: 999px;
  font-size: 15px;
  font-weight:500;
  letter-spacing:.02em;
  transition: transform .4s var(--ease), background .3s var(--ease), color .3s var(--ease), box-shadow .3s var(--ease);
  white-space:nowrap;
}
.btn--primary{
  background: var(--ink);
  color: var(--ivory);
  box-shadow: 0 12px 30px -12px rgba(20,20,26,.45);
}
.btn--primary:hover{ transform: translateY(-2px); box-shadow: 0 18px 36px -12px rgba(20,20,26,.55);}
.btn--ghost{
  color: var(--ink);
  border:1px solid var(--line);
  background: rgba(255,255,255,.6);
  backdrop-filter: blur(10px);
}
.btn--ghost:hover{ background:var(--bg-deep); }
.btn--big{ height:60px; padding:0 38px; font-size:16px; }

.link-arrow{
  font-size:14px;
  color:var(--ink);
  font-weight:500;
  position:relative;
  transition: color .3s var(--ease);
}
.link-arrow:hover{ color: var(--gold); }

/* =========================================================
   导航
   ========================================================= */
.nav{
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  transition: background .4s var(--ease), border-color .4s var(--ease), backdrop-filter .4s var(--ease);
  border-bottom: 1px solid transparent;
}
.nav.is-stuck{
  background: rgba(250,247,240,.78);
  backdrop-filter: saturate(180%) blur(22px);
  -webkit-backdrop-filter: saturate(180%) blur(22px);
  border-bottom-color: var(--line);
}
.nav__inner{
  max-width: var(--maxw);
  margin:0 auto;
  padding: 16px var(--pad);
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.brand{ display:flex; align-items:baseline; gap:10px; }
.brand__glyph{
  font-family: var(--serif);
  font-size: 28px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing:0;
}
.brand__type{
  font-size:13px;
  letter-spacing:.4em;
  color:var(--text-soft);
  font-weight:500;
}
.nav__menu{ display:flex; gap: 32px; }
.nav__menu a{
  font-size: 14px;
  color: var(--text);
  position:relative;
  padding: 6px 0;
  transition: color .3s var(--ease);
}
.nav__menu a::after{
  content:"";position:absolute;left:0;right:100%;bottom:0;height:1px;background:var(--ink);
  transition: right .35s var(--ease);
}
.nav__menu a:hover{ color: var(--ink); }
.nav__menu a:hover::after{ right:0; }

.nav__cta{
  font-size:14px;
  height: 40px;
  padding: 0 18px;
  border-radius: 999px;
  background: var(--ink);
  color: var(--ivory);
  display:inline-flex;align-items:center;
  transition: transform .35s var(--ease), background .3s var(--ease);
}
.nav__cta:hover{ transform: translateY(-1px); }

/* =========================================================
   Hero
   ========================================================= */
.hero{
  position:relative;
  min-height: 100vh;
  padding: clamp(120px, 20vh, 220px) var(--pad) clamp(60px,10vh,120px);
  display:grid;
  grid-template-columns: 1.05fr .95fr;
  gap: clamp(20px, 4vw, 80px);
  align-items:center;
  max-width: var(--maxw);
  margin: 0 auto;
}
.hero__bg{ position:absolute; inset:0; pointer-events:none; overflow:hidden; }
.orb{
  position:absolute; border-radius:50%; filter: blur(80px); opacity:.55;
  animation: float 18s var(--ease) infinite alternate;
}
.orb--gold{ width:520px;height:520px; right:-120px; top:-100px; background:radial-gradient(circle, #e6c98c 0%, transparent 70%); }
.orb--ivory{ width:600px;height:600px; left:-180px; bottom:-200px; background:radial-gradient(circle, #ffffff 0%, #f5f1e8 50%, transparent 80%); animation-delay:-6s;}
.grain{
  position:absolute; inset:0;
  background-image: radial-gradient(rgba(20,20,26,.04) 1px, transparent 1px);
  background-size: 3px 3px; opacity:.5;
}
@keyframes float{ from{transform:translate3d(0,0,0) scale(1);} to{transform:translate3d(40px,-30px,0) scale(1.08);} }

.hero__copy{ position:relative; z-index:2; }
.hero__copy .eyebrow{ margin-bottom: 24px; }
.hero .display{ margin-bottom: 28px; }
.hero .display span{ display:block; }
.hero__cta{ display:flex; gap: 14px; flex-wrap:wrap; margin-top: 40px; }

.hero__meta{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 64px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
  max-width: 540px;
}
.hero__meta li{ display:flex; flex-direction:column; gap:4px; }
.hero__meta strong{
  font-family: var(--serif);
  font-size: 32px;
  font-weight: 600;
  color: var(--ink);
}
.hero__meta sup{ font-size: .55em; vertical-align: super; opacity:.7; margin-left: 2px; }
.hero__meta span{ font-size: 12px; color: var(--text-soft); letter-spacing:.05em; }

.hero__photo{
  position:relative; z-index:2;
  border-radius: var(--r-lg);
  overflow:hidden;
  background: linear-gradient(135deg, #ffffff 0%, #f0e9d9 100%);
  aspect-ratio: 4/5;
  box-shadow:
    0 50px 100px -30px rgba(20,20,26,.30),
    0 30px 60px -30px rgba(201,169,107,.35),
    inset 0 0 0 1px rgba(255,255,255,.6);
}
.hero__photo img{
  width:100%;height:100%;object-fit:cover;
  transition: transform 1.6s var(--ease-out);
}
.hero__photo:hover img{ transform: scale(1.05); }
.hero__photo figcaption{
  position:absolute; left:24px; bottom:20px;
  font-size:13px; letter-spacing:.05em;
  color: var(--ink);
  background: rgba(255,255,255,.75);
  backdrop-filter: blur(10px);
  padding: 8px 14px;
  border-radius: 999px;
}

/* =========================================================
   Manifesto
   ========================================================= */
.manifesto{
  padding: clamp(120px, 20vh, 220px) var(--pad);
  text-align:center;
}
.manifesto__inner{ max-width: 1100px; margin: 0 auto; }
.manifesto__inner .eyebrow{ margin-bottom: 24px; }
.manifesto__text{
  margin-top: 36px;
  font-size: clamp(18px, 1.6vw, 22px);
  color: var(--text-soft);
  line-height: 1.8;
  font-family: var(--serif);
  font-style: italic;
}

/* =========================================================
   Showcase Cards
   ========================================================= */
.showcase{ padding-bottom: clamp(80px,10vh,160px); }
.cards{
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--pad);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.card{
  background: var(--bg-deep);
  border-radius: var(--r-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  transition: transform .6s var(--ease-out), box-shadow .6s var(--ease-out);
}
.card:hover{
  transform: translateY(-8px);
  box-shadow: 0 40px 80px -30px rgba(20,20,26,.22);
}
.card__media{
  aspect-ratio: 4/5;
  overflow:hidden;
  background: var(--ivory-deep);
}
.card__media img{
  width:100%;height:100%;object-fit:cover;
  transition: transform 1.4s var(--ease-out);
}
.card:hover .card__media img{ transform: scale(1.06); }
.card__body{ padding: 28px 28px 32px; }
.card__series{ font-size:12px; letter-spacing:.3em; color:var(--text-soft); text-transform:uppercase; }
.card__title{
  font-family: var(--serif);
  font-size: 28px;
  font-weight: 600;
  margin: 8px 0 12px;
  letter-spacing:-.01em;
}
.card__desc{
  font-size: 14px;
  color: var(--text-soft);
  line-height: 1.7;
  min-height: 3.4em;
}
.card__foot{
  display:flex;align-items:center;justify-content:space-between;
  margin-top: 22px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}
.price{
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 600;
  color: var(--ink);
}

/* =========================================================
   Craft (USP) — sticky scroll
   ========================================================= */
.craft{
  background: var(--ink);
  color: var(--ivory);
  position: relative;
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  overflow:hidden;
}
.craft .eyebrow{ color: rgba(245,241,232,.6); }
.craft .headline{ color: var(--ivory); }

.craft__sticky{
  padding: clamp(120px, 16vh, 200px) clamp(40px, 6vw, 100px);
  align-self: start;
  position: sticky; top: 0;
  display:flex; flex-direction:column; justify-content:center;
  min-height: 100vh;
}
.craft__list{
  margin-top: 48px;
  display:flex; flex-direction:column; gap: 28px;
  border-top: 1px solid rgba(245,241,232,.12);
  padding-top: 32px;
}
.craft__list li{
  display:grid;
  grid-template-columns: 64px 1fr;
  gap: 24px;
  padding-bottom: 28px;
  border-bottom: 1px solid rgba(245,241,232,.08);
  position: relative;
}
.craft__list li::before{
  content: attr(data-step);
  font-family: var(--serif);
  font-size: 36px;
  font-weight: 600;
  background: linear-gradient(120deg,var(--gold-bright),var(--gold));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  line-height: 1;
}
.craft__list h4{
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--ivory);
}
.craft__list p{
  color: rgba(245,241,232,.65);
  font-size: 15px;
  line-height: 1.7;
}

.craft__art{
  position: relative;
  min-height: 100vh;
  overflow:hidden;
}
.craft__art img{
  width:100%;height:100%;object-fit:cover;
  filter: brightness(.78) contrast(1.05);
}
.craft__art::after{
  content:"";position:absolute;inset:0;
  background: linear-gradient(90deg, var(--ink) 0%, transparent 30%, transparent 100%);
}

/* =========================================================
   Palette
   ========================================================= */
.palette{ padding-bottom: clamp(100px, 14vh, 200px); }
.swatches{
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--pad);
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap: 18px;
  margin-bottom: 56px;
}
.swatch{
  width: 64px; height: 64px;
  border-radius: 50%;
  background: var(--c);
  position:relative;
  transition: transform .4s var(--ease), box-shadow .4s var(--ease);
  border: 1px solid var(--line);
}
.swatch span{
  position:absolute; inset: -8px;
  border-radius: 50%;
  border: 1px solid transparent;
  transition: border-color .4s var(--ease);
}
.swatch:hover{ transform: translateY(-4px); }
.swatch.is-active span{ border-color: var(--ink); }

.swatch__display{
  max-width: 980px; margin: 0 auto;
  padding: 0 var(--pad);
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items:center;
}
.swatch__chip{
  aspect-ratio: 1/1;
  border-radius: var(--r-lg);
  background: var(--c, var(--ivory));
  transition: background .8s var(--ease-out);
  box-shadow:
    0 50px 100px -30px rgba(20,20,26,.22),
    inset 0 0 0 1px rgba(255,255,255,.6);
}
.swatch__cn{
  font-size: 12px; letter-spacing: .4em; color: var(--text-soft);
  margin-bottom: 16px;
}
.swatch__name{
  font-family: var(--serif);
  font-size: clamp(48px, 6vw, 96px);
  font-weight: 600;
  letter-spacing: -.01em;
  margin-bottom: 24px;
  line-height: 1;
}
.swatch__story{
  font-size: 17px;
  color: var(--text-soft);
  font-family: var(--serif);
  font-style: italic;
  line-height: 1.7;
}

/* =========================================================
   Voices
   ========================================================= */
.voices{ padding-bottom: clamp(100px,14vh,200px); }
.voices__grid{
  max-width: var(--maxw); margin: 0 auto;
  padding: 0 var(--pad);
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.voice{
  background: var(--bg-deep);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 40px 32px;
  transition: transform .5s var(--ease), box-shadow .5s var(--ease);
}
.voice:hover{ transform: translateY(-6px); box-shadow: 0 30px 60px -25px rgba(20,20,26,.18); }
.voice p{
  font-family: var(--serif);
  font-size: 19px;
  line-height: 1.7;
  color: var(--ink);
  margin-bottom: 28px;
  font-style: italic;
}
.voice footer{ display:flex; flex-direction:column; gap: 4px; }
.voice cite{
  font-style: normal; font-weight: 600; font-size: 15px; color: var(--ink);
}
.voice span{ font-size: 13px; color: var(--text-soft); letter-spacing:.05em; }

.trust{
  max-width: var(--maxw);
  margin: 80px auto 0;
  padding: 60px var(--pad);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.trust li{ text-align:center; }
.trust strong{
  font-family: var(--serif);
  font-size: clamp(36px, 4vw, 56px);
  font-weight: 600;
  background: linear-gradient(120deg, var(--ink) 0%, var(--gold) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  display:block;
  margin-bottom: 6px;
}
.trust sup{ font-size: .45em; vertical-align: super; opacity:.7; }
.trust span{ font-size: 13px; color: var(--text-soft); letter-spacing:.08em; }

/* =========================================================
   CTA
   ========================================================= */
.cta{
  position: relative;
  padding: clamp(120px, 18vh, 220px) var(--pad);
  background: var(--ink);
  color: var(--ivory);
  overflow: hidden;
  text-align:center;
}
.cta__bg{
  position:absolute; inset:0;
  background:
    radial-gradient(60% 60% at 50% 0%, rgba(201,169,107,.18), transparent 70%),
    radial-gradient(40% 40% at 100% 100%, rgba(167,58,58,.15), transparent 60%);
  pointer-events:none;
}
.cta__inner{ position:relative; z-index:2; max-width: 880px; margin: 0 auto; }
.cta .eyebrow{ margin-bottom: 24px; }
.cta .display{ color: var(--ivory); margin-bottom: 28px; }
.cta .lede{ margin: 0 auto 48px; }

.cta__form{
  display: grid;
  grid-template-columns: 1fr 1fr auto;
  gap: 12px;
  max-width: 720px;
  margin: 0 auto;
}
.cta__form input{
  height: 60px;
  padding: 0 22px;
  border-radius: 999px;
  background: rgba(245,241,232,.06);
  border: 1px solid rgba(245,241,232,.16);
  color: var(--ivory);
  font-size: 15px;
  font-family: var(--sans);
  transition: border-color .3s var(--ease), background .3s var(--ease);
}
.cta__form input::placeholder{ color: rgba(245,241,232,.45); }
.cta__form input:focus{
  outline:none;
  border-color: var(--gold);
  background: rgba(245,241,232,.1);
}
.cta__form .btn{
  background: linear-gradient(120deg, var(--gold-bright), var(--gold));
  color: var(--ink);
  font-weight: 600;
}
.cta__form .btn:hover{ transform: translateY(-2px); box-shadow: 0 20px 40px -12px rgba(201,169,107,.5); }
.cta__sub{
  margin-top: 20px;
  font-size: 12px;
  letter-spacing:.05em;
  color: rgba(245,241,232,.4);
}
.cta__msg{
  margin-top: 24px;
  display:inline-block;
  padding: 12px 22px;
  border-radius: 999px;
  background: rgba(201,169,107,.16);
  color: var(--gold-bright);
  font-size: 14px;
}

/* =========================================================
   Footer
   ========================================================= */
.foot{
  background: var(--bg);
  border-top: 1px solid var(--line);
  padding: 80px var(--pad) 40px;
}
.foot__inner{
  max-width: var(--maxw); margin: 0 auto;
  display:grid;
  grid-template-columns: 1fr 2fr;
  gap: 60px;
  padding-bottom: 60px;
  border-bottom: 1px solid var(--line);
}
.foot__brand .brand__glyph{ font-size: 48px; }
.foot__brand .brand__type{ display:block; margin-top: 8px; }
.foot__slogan{
  margin-top: 20px;
  font-family: var(--serif);
  font-size: 22px;
  font-style:italic;
  color: var(--text-soft);
}
.foot__cols{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}
.foot__cols h5{
  font-size: 12px;
  letter-spacing: .3em;
  color: var(--text-soft);
  text-transform: uppercase;
  margin-bottom: 16px;
}
.foot__cols a{
  display: block;
  font-size: 14px;
  color: var(--text);
  padding: 6px 0;
  transition: color .3s var(--ease);
}
.foot__cols a:hover{ color: var(--gold); }
.foot__copy{
  max-width: var(--maxw);
  margin: 30px auto 0;
  text-align:center;
  font-size: 12px;
  color: var(--text-soft);
  letter-spacing: .08em;
}

/* =========================================================
   Scroll Reveal Animations
   ========================================================= */
.reveal{
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 1s var(--ease-out), transform 1s var(--ease-out);
}
.reveal.is-in{ opacity: 1; transform: translateY(0); }

.reveal-photo{
  opacity: 0;
  transform: translateY(40px) scale(.98);
  transition: opacity 1.4s var(--ease-out), transform 1.4s var(--ease-out);
}
.reveal-photo.is-in{ opacity: 1; transform: translateY(0) scale(1); }

/* Stagger for hero copy */
.hero__copy .reveal:nth-child(1){ transition-delay: .05s; }
.hero__copy .reveal:nth-child(2){ transition-delay: .15s; }
.hero__copy .reveal:nth-child(3){ transition-delay: .30s; }
.hero__copy .reveal:nth-child(4){ transition-delay: .45s; }
.hero__copy .reveal:nth-child(5){ transition-delay: .60s; }

/* =========================================================
   Responsive
   ========================================================= */
@media (max-width: 1024px){
  .hero{ grid-template-columns: 1fr; padding-top: 110px; }
  .hero__photo{ aspect-ratio: 4/4.4; }
  .craft{ grid-template-columns: 1fr; }
  .craft__art{ min-height: 60vh; }
  .craft__sticky{ position: relative; min-height: auto; }
  .cards{ grid-template-columns: repeat(2, 1fr); }
  .voices__grid{ grid-template-columns: 1fr; }
  .swatch__display{ grid-template-columns: 1fr; gap: 32px; text-align:center;}
  .foot__inner{ grid-template-columns: 1fr; gap: 40px;}
  .trust{ grid-template-columns: repeat(2, 1fr); gap: 32px;}
}
@media (max-width: 720px){
  .nav__menu{ display:none; }
  .hero__meta{ grid-template-columns: 1fr; }
  .hero__meta strong{ font-size: 24px; }
  .cards{ grid-template-columns: 1fr; }
  .cta__form{ grid-template-columns: 1fr; }
  .foot__cols{ grid-template-columns: 1fr 1fr; }
}

/* =========================================================
   Selection / Focus
   ========================================================= */
::selection{ background: var(--gold); color: var(--ink); }
:focus-visible{ outline: 2px solid var(--gold); outline-offset: 3px; border-radius: 4px; }