/* ══════════════════════════════════
   星机数码 · 样式表
   方向：极简高端零售 + 精密感
   ══════════════════════════════════ */

:root{
  --bg:#0B0B0F;
  --bg2:#101015;
  --card:#14141A;
  --card2:#181820;
  --line:rgba(255,255,255,.08);
  --line2:rgba(255,255,255,.14);
  --txt:#F2F2F5;
  --sub:#9A9AA8;
  --dim:#5E5E6E;
  --white:#FFFFFF;
  --accent:#E8E8EC;
  --disp:'Oswald',sans-serif;
  --body:'Noto Sans SC',-apple-system,BlinkMacSystemFont,sans-serif;
  --r:14px;
  --r-lg:22px;
  --wrap:1180px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--bg);
  color:var(--txt);
  font-family:var(--body);
  font-weight:400;
  line-height:1.7;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}

/* 背景细网格 */
body::before{
  content:'';
  position:fixed;inset:0;pointer-events:none;z-index:0;
  background:
    radial-gradient(900px 500px at 78% -8%, rgba(255,255,255,.055), transparent 62%),
    radial-gradient(700px 420px at 8% 12%, rgba(160,180,255,.035), transparent 60%),
    linear-gradient(rgba(255,255,255,.016) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.016) 1px, transparent 1px);
  background-size:auto,auto,56px 56px,56px 56px;
  mask-image:radial-gradient(circle at 50% 22%, #000 0%, transparent 78%);
}
body>*{position:relative;z-index:1}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px}

/* ── 导航 ── */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  transition:background .35s ease, backdrop-filter .35s ease, border-color .35s ease;
  border-bottom:1px solid transparent;
}
.nav.scrolled{
  background:rgba(11,11,15,.82);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom-color:var(--line);
}
.nav-inner{
  max-width:var(--wrap);margin:0 auto;padding:0 24px;
  height:68px;display:flex;align-items:center;gap:28px;
}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:22px;height:22px;color:var(--white);stroke-width:1.5}
.brand-text{
  font-family:var(--disp);font-weight:600;font-size:1.02rem;
  letter-spacing:.06em;display:flex;align-items:center;gap:8px;
}
.brand-text em{
  font-style:normal;font-size:.58rem;letter-spacing:.22em;
  color:var(--dim);font-weight:400;padding-top:2px;
}
.nav-links{display:flex;gap:26px;margin-left:auto}
.nav-links a{
  font-size:.86rem;color:var(--sub);
  transition:color .22s ease;position:relative;padding:4px 0;
}
.nav-links a::after{
  content:'';position:absolute;left:0;bottom:0;height:1px;width:0;
  background:var(--white);transition:width .28s ease;
}
.nav-links a:hover{color:var(--txt)}
.nav-links a:hover::after{width:100%}
.nav-cta{
  font-size:.82rem;padding:9px 20px;border-radius:100px;
  border:1px solid var(--line2);color:var(--txt);
  transition:all .25s ease;flex-shrink:0;
}
.nav-cta:hover{background:var(--white);color:var(--bg);border-color:var(--white)}
.nav-burger{display:none;background:none;border:none;cursor:pointer;padding:6px;flex-direction:column;gap:5px}
.nav-burger span{display:block;width:20px;height:1.6px;background:var(--txt);transition:.3s}

/* ── Hero ── */
.hero{
  min-height:100vh;display:flex;align-items:center;
  padding:112px 0 80px;position:relative;
}
.hero-grid{
  max-width:var(--wrap);margin:0 auto;padding:0 24px;
  display:grid;grid-template-columns:1fr .86fr;gap:64px;align-items:center;width:100%;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:.76rem;color:var(--sub);letter-spacing:.04em;
  margin-bottom:26px;
  padding:7px 15px;border:1px solid var(--line);border-radius:100px;
  background:rgba(255,255,255,.02);
}
.pulse{
  width:6px;height:6px;border-radius:50%;background:#5BE49B;flex-shrink:0;
  box-shadow:0 0 0 0 rgba(91,228,155,.6);
  animation:pulse 2.4s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(91,228,155,.55)}
  70%{box-shadow:0 0 0 9px rgba(91,228,155,0)}
  100%{box-shadow:0 0 0 0 rgba(91,228,155,0)}
}
.hero h1{
  font-family:var(--disp);font-weight:600;
  font-size:clamp(2.3rem,5.4vw,4.1rem);
  line-height:1.1;letter-spacing:-.015em;margin-bottom:22px;
}
.hero-em{
  display:block;
  color:transparent;
  background:linear-gradient(96deg,#FFF 8%,#B9BECD 52%,#7E8496 96%);
  -webkit-background-clip:text;background-clip:text;
}
.hero-sub{
  font-size:1.02rem;color:var(--sub);
  max-width:520px;margin-bottom:36px;font-weight:300;
}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:52px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 30px;border-radius:100px;font-size:.92rem;font-weight:500;
  cursor:pointer;border:1px solid transparent;
  transition:all .26s cubic-bezier(.4,0,.2,1);
  white-space:nowrap;
}
.btn-solid{background:var(--white);color:var(--bg)}
.btn-solid:hover{transform:translateY(-2px);box-shadow:0 12px 30px -10px rgba(255,255,255,.42)}
.btn-ghost{border-color:var(--line2);color:var(--txt);background:rgba(255,255,255,.02)}
.btn-ghost:hover{border-color:var(--white);background:rgba(255,255,255,.07)}
.btn-block{width:100%}
.ic{width:17px;height:17px;flex-shrink:0}

.hero-meta{
  display:flex;gap:34px;list-style:none;
  padding-top:28px;border-top:1px solid var(--line);
}
.hero-meta li{display:flex;flex-direction:column;gap:2px}
.hero-meta strong{
  font-family:var(--disp);font-size:1.5rem;font-weight:600;letter-spacing:.01em;
}
.hero-meta span{font-size:.76rem;color:var(--dim);letter-spacing:.04em}

.hero-visual{position:relative}
.hero-frame{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);
  background:linear-gradient(150deg,#191920,#0E0E13);
  aspect-ratio:1/1;
  box-shadow:0 40px 90px -40px rgba(0,0,0,.9);
}
.hero-frame img{width:100%;height:100%;object-fit:cover;opacity:.94}
.hero-frame::after{
  content:'';position:absolute;inset:0;
  background:radial-gradient(circle at 50% 40%, transparent 42%, rgba(11,11,15,.62) 100%);
}
.hero-badge{
  position:absolute;left:-20px;bottom:34px;
  background:rgba(18,18,24,.92);backdrop-filter:blur(14px);
  border:1px solid var(--line2);border-radius:12px;
  padding:14px 20px;display:flex;flex-direction:column;gap:2px;
  box-shadow:0 20px 44px -20px rgba(0,0,0,.85);
}
.hero-badge span{font-size:.7rem;color:var(--dim);letter-spacing:.09em}
.hero-badge strong{font-size:.94rem;font-weight:500}

.scroll-hint{
  position:absolute;left:50%;bottom:30px;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:7px;
  font-size:.7rem;color:var(--dim);letter-spacing:.14em;
  animation:float 2.8s ease-in-out infinite;
}
.scroll-hint svg{width:15px;height:15px}
@keyframes float{
  0%,100%{transform:translateX(-50%) translateY(0);opacity:.6}
  50%{transform:translateX(-50%) translateY(7px);opacity:1}
}

/* ── 通用 section ── */
.sec{padding:104px 0;position:relative}
.sec-alt{background:linear-gradient(180deg,transparent,rgba(255,255,255,.017) 12%,rgba(255,255,255,.017) 88%,transparent)}
.sec-head{margin-bottom:54px;max-width:660px}
.sec-num{
  font-family:var(--disp);font-size:.72rem;font-weight:500;
  letter-spacing:.24em;color:var(--dim);margin-bottom:16px;
}
.sec-head h2{
  font-family:var(--disp);font-weight:600;
  font-size:clamp(1.7rem,3.4vw,2.5rem);
  letter-spacing:-.008em;line-height:1.16;margin-bottom:16px;
}
.sec-sub{font-size:.96rem;color:var(--sub);font-weight:300}
.sec-sub strong{color:var(--txt);font-weight:500}

/* ── 机型卡片 ── */
.models-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(268px,1fr));gap:18px;
}
.model-card{
  background:linear-gradient(165deg,var(--card),var(--bg2));
  border:1px solid var(--line);border-radius:var(--r);
  overflow:hidden;position:relative;
  transition:transform .34s cubic-bezier(.4,0,.2,1),border-color .34s ease,box-shadow .34s ease;
}
.model-card:hover{
  transform:translateY(-5px);border-color:var(--line2);
  box-shadow:0 26px 56px -26px rgba(0,0,0,.85);
}
.model-thumb{
  height:190px;display:flex;align-items:center;justify-content:center;
  background:radial-gradient(circle at 50% 46%,#23232C,#111116);
  position:relative;overflow:hidden;
}
.model-thumb img{height:88%;width:auto;object-fit:contain;transition:transform .5s cubic-bezier(.4,0,.2,1)}
.model-card:hover .model-thumb img{transform:scale(1.06)}
.model-tag{
  position:absolute;top:12px;left:12px;
  font-size:.66rem;letter-spacing:.1em;padding:4px 10px;border-radius:100px;
  background:rgba(255,255,255,.1);border:1px solid var(--line2);backdrop-filter:blur(8px);
}
.model-tag.hot{background:rgba(255,255,255,.92);color:var(--bg);border-color:transparent;font-weight:600}
.model-body{padding:18px 20px 20px}
.model-name{
  font-family:var(--disp);font-size:1.12rem;font-weight:600;
  letter-spacing:.01em;margin-bottom:4px;
}
.model-spec{font-size:.79rem;color:var(--dim);margin-bottom:16px;letter-spacing:.02em}
.model-foot{display:flex;align-items:baseline;justify-content:space-between;gap:10px}
.model-price{
  font-family:var(--disp);font-size:1.42rem;font-weight:600;color:var(--white);
  letter-spacing:-.01em;
}
.model-price small{font-size:.7rem;color:var(--dim);font-weight:400;margin-right:2px;letter-spacing:.05em}
.model-old{font-size:.78rem;color:var(--dim);text-decoration:line-through}
.model-cta{
  display:inline-flex;align-items:center;gap:5px;
  font-size:.78rem;color:var(--sub);transition:color .2s ease;
}
.model-cta svg{width:13px;height:13px;transition:transform .2s ease}
.model-card:hover .model-cta{color:var(--white)}
.model-card:hover .model-cta svg{transform:translateX(3px)}

.models-note{
  display:flex;gap:11px;align-items:flex-start;
  margin-top:32px;padding:16px 20px;
  border:1px solid var(--line);border-radius:var(--r);
  background:rgba(255,255,255,.017);
  font-size:.85rem;color:var(--sub);line-height:1.65;
}
.models-note .ic{width:16px;height:16px;color:var(--dim);margin-top:3px}

/* ── 信任卡 ── */
.why-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(232px,1fr));gap:16px;
  margin-bottom:52px;
}
.why-card{
  padding:30px 26px;border-radius:var(--r);
  border:1px solid var(--line);background:rgba(255,255,255,.016);
  transition:border-color .3s ease,background .3s ease,transform .3s ease;
}
.why-card:hover{border-color:var(--line2);background:rgba(255,255,255,.032);transform:translateY(-3px)}
.why-ic{
  width:42px;height:42px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line2);background:rgba(255,255,255,.04);
  margin-bottom:20px;
}
.why-ic svg{width:20px;height:20px;color:var(--white)}
.why-card h3{font-size:1rem;font-weight:500;margin-bottom:9px;letter-spacing:.01em}
.why-card p{font-size:.86rem;color:var(--sub);font-weight:300;line-height:1.72}

.store-banner{
  display:grid;grid-template-columns:1.15fr 1fr;
  border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);background:var(--card);
}
.store-banner img{width:100%;height:100%;object-fit:cover;min-height:250px;opacity:.85}
.store-banner-copy{padding:40px 38px;display:flex;flex-direction:column;justify-content:center;gap:12px}
.store-banner-copy h4{
  font-family:var(--disp);font-size:1.3rem;font-weight:600;letter-spacing:.01em;
}
.store-banner-copy p{font-size:.88rem;color:var(--sub);font-weight:300;line-height:1.75}

/* ── 流程 ── */
.flow-list{list-style:none;display:grid;gap:0}
.flow-item{
  display:grid;grid-template-columns:88px 1fr;gap:26px;
  padding:30px 0;border-top:1px solid var(--line);
  transition:background .3s ease;align-items:start;
}
.flow-item:last-child{border-bottom:1px solid var(--line)}
.flow-item:hover{background:rgba(255,255,255,.016)}
.flow-idx{
  font-family:var(--disp);font-size:2.3rem;font-weight:600;
  color:transparent;-webkit-text-stroke:1px var(--dim);
  line-height:1;letter-spacing:.02em;
}
.flow-body h3{font-size:1.05rem;font-weight:500;margin-bottom:8px;letter-spacing:.01em}
.flow-body p{font-size:.89rem;color:var(--sub);font-weight:300;max-width:600px}

/* ── 评价 ── */
.rev-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:16px}
.rev-card{
  padding:28px 26px;border-radius:var(--r);
  border:1px solid var(--line);background:rgba(255,255,255,.016);
}
.rev-stars{display:flex;gap:3px;margin-bottom:16px}
.rev-stars svg{width:15px;height:15px;fill:var(--white);opacity:.9}
.rev-card blockquote{
  font-size:.93rem;line-height:1.78;color:var(--txt);font-weight:300;
  margin-bottom:18px;
}
.rev-card figcaption{font-size:.78rem;color:var(--dim);letter-spacing:.03em}

/* ── 到店 ── */
.visit-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:start}
.visit-info{
  padding:34px 32px;border-radius:var(--r-lg);
  border:1px solid var(--line);background:linear-gradient(165deg,var(--card),var(--bg2));
}
.info-list{list-style:none;display:flex;flex-direction:column;gap:24px;margin-bottom:30px}
.info-row dt{
  display:flex;align-items:center;gap:9px;
  font-size:.76rem;color:var(--dim);letter-spacing:.12em;
  margin-bottom:9px;text-transform:uppercase;
}
.info-row dt svg{width:15px;height:15px;flex-shrink:0}
.info-row dd{font-size:.94rem;line-height:1.72;font-weight:300;padding-left:24px}
.info-row .dim{color:var(--dim);font-size:.82rem}
.info-link{border-bottom:1px solid var(--line2);transition:border-color .2s}
.info-link:hover{border-color:var(--white)}
.hl{color:var(--white);font-weight:500;letter-spacing:.02em}

.visit-form{
  padding:34px 32px;border-radius:var(--r-lg);
  border:1px solid var(--line2);background:linear-gradient(165deg,#17171E,#101015);
  box-shadow:0 34px 70px -34px rgba(0,0,0,.85);
}
.visit-form h3{font-family:var(--disp);font-size:1.32rem;font-weight:600;margin-bottom:7px;letter-spacing:.01em}
.form-sub{font-size:.84rem;color:var(--dim);margin-bottom:26px;font-weight:300}
.field{margin-bottom:17px}
.field label{display:block;font-size:.78rem;color:var(--sub);margin-bottom:8px;letter-spacing:.03em}
.field input,.field select,.field textarea{
  width:100%;padding:13px 15px;
  background:rgba(255,255,255,.035);
  border:1px solid var(--line);border-radius:10px;
  font-size:.92rem;font-weight:300;
  transition:border-color .22s ease,background .22s ease;
  outline:none;resize:vertical;
}
.field input::placeholder,.field textarea::placeholder{color:var(--dim)}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--line2);background:rgba(255,255,255,.06);
}
.field select option{background:#17171E;color:var(--txt)}
.form-tip{font-size:.74rem;color:var(--dim);margin-top:12px;text-align:center;line-height:1.6}

.form-ok{
  display:flex;gap:13px;align-items:flex-start;
  margin-top:18px;padding:16px 18px;border-radius:11px;
  border:1px solid rgba(91,228,155,.28);background:rgba(91,228,155,.07);
}
.form-ok svg{width:19px;height:19px;color:#5BE49B;flex-shrink:0;margin-top:2px}
.form-ok strong{display:block;font-size:.92rem;font-weight:500;margin-bottom:3px}
.form-ok span{font-size:.82rem;color:var(--sub);font-weight:300}

/* ── 页脚 ── */
.foot{border-top:1px solid var(--line);padding:52px 0 40px;margin-top:40px}
.foot-inner{display:flex;flex-direction:column;align-items:center;text-align:center;gap:16px}
.foot-brand{display:flex;align-items:center;gap:9px;font-family:var(--disp);font-weight:600;letter-spacing:.05em}
.foot-brand .brand-mark{width:19px;height:19px}
.foot-note{font-size:.85rem;color:var(--sub);line-height:1.8;font-weight:300}
.foot-copy{font-size:.75rem;color:var(--dim);letter-spacing:.02em}

/* ── 悬浮按钮 ── */
.fab{
  position:fixed;right:22px;bottom:22px;z-index:90;
  width:52px;height:52px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--white);color:var(--bg);
  box-shadow:0 14px 34px -10px rgba(255,255,255,.42);
  transition:transform .26s ease,box-shadow .26s ease;
}
.fab:hover{transform:scale(1.07);box-shadow:0 18px 40px -10px rgba(255,255,255,.55)}
.fab svg{width:21px;height:21px}

/* ── 入场动画 ── */
.reveal{opacity:0;transform:translateY(24px);transition:opacity .7s cubic-bezier(.4,0,.2,1),transform .7s cubic-bezier(.4,0,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ── 响应式 ── */
@media(max-width:1000px){
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .hero-visual{max-width:440px}
  .visit-grid{grid-template-columns:1fr}
  .store-banner{grid-template-columns:1fr}
  .store-banner img{min-height:210px}
}
@media(max-width:820px){
  .nav-links{display:none}
  .nav-cta{display:none}
  .nav-burger{display:flex;margin-left:auto}
  .nav-links.open{
    display:flex;flex-direction:column;gap:0;
    position:absolute;top:68px;left:0;right:0;
    background:rgba(11,11,15,.97);backdrop-filter:blur(18px);
    border-bottom:1px solid var(--line);
    padding:8px 24px 18px;
  }
  .nav-links.open a{padding:14px 0;border-bottom:1px solid var(--line);font-size:.94rem}
  .sec{padding:78px 0}
  .hero{padding:96px 0 66px;min-height:auto}
  .hero-meta{gap:24px}
  .hero-meta strong{font-size:1.28rem}
  .flow-item{grid-template-columns:62px 1fr;gap:18px}
  .flow-idx{font-size:1.8rem}
  .hero-badge{left:0;bottom:18px;padding:12px 16px}
}
@media(max-width:520px){
  .wrap,.hero-grid,.nav-inner{padding-left:18px;padding-right:18px}
  .sec{padding:64px 0}
  .hero-actions{flex-direction:column;align-items:stretch}
  .btn{width:100%}
  .visit-info,.visit-form{padding:26px 22px}
  .models-grid{grid-template-columns:1fr}
  .hero-sub{font-size:.95rem}
}

@media(prefers-reduced-motion:reduce){
  *{animation-duration:.01ms!important;transition-duration:.01ms!important}
  html{scroll-behavior:auto}
}