/* ============================================================
   V3新视界 · 品牌官网样式
   方向：Brutally minimal × Luxury/refined（苹果式克制极简）
   ============================================================ */

:root{
  --paper:#F5F5F7;
  --ink:#1D1D1F;
  --muted:#86868B;
  --hair:#D2D2D7;
  --accent:#0071E3;
  --accent-deep:#0060C9;
  --card:#FFFFFF;
  --black:#000000;
  --radius:28px;
  --nav-h:64px;
  --maxw:1240px;
  --font-display:'Clash Display','PingFang SC','Noto Sans SC',sans-serif;
  --font-body:'Satoshi','PingFang SC','Noto Sans SC',sans-serif;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
html,body{overflow-x:clip}

body{
  font-family:var(--font-body);
  background:var(--paper);
  color:var(--ink);
  line-height:1.6;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

::selection{background:var(--ink);color:#fff}

img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{list-style:none}

h1,h2,h3,.display{
  font-family:var(--font-display);
  font-weight:600;
  line-height:1.05;
  letter-spacing:-.02em;
  text-wrap:pretty;
}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 clamp(20px,4vw,48px)}

/* ---------- 顶部进度条 ---------- */
.progress{
  position:fixed;inset:0 0 auto 0;height:2px;z-index:120;
  background:transparent;pointer-events:none;
}
.progress i{
  display:block;height:100%;width:100%;
  background:var(--ink);transform-origin:0 50%;transform:scaleX(0);
}

/* ---------- 悬浮胶囊导航 ---------- */
.nav{
  position:fixed;top:14px;left:50%;transform:translateX(-50%);
  z-index:110;width:min(1040px,calc(100% - 28px));
  display:flex;align-items:center;gap:8px;
  padding:8px 10px 8px 16px;border-radius:999px;
  background:rgba(255,255,255,.72);
  -webkit-backdrop-filter:saturate(180%) blur(20px);
  backdrop-filter:saturate(180%) blur(20px);
  border:1px solid rgba(210,210,215,.7);
  box-shadow:0 12px 32px -18px rgba(29,29,31,.25);
  transition:box-shadow .3s ease,background .3s ease;
}
.nav.scrolled{background:rgba(255,255,255,.86);box-shadow:0 16px 40px -18px rgba(29,29,31,.32)}
.nav-brand{display:flex;align-items:center;gap:10px;margin-right:auto}
.nav-brand img{height:26px;width:auto}
.nav-brand b{font-family:var(--font-display);font-weight:600;font-size:15px;letter-spacing:.02em}
.nav-brand span{font-size:10px;letter-spacing:.18em;color:var(--muted);text-transform:uppercase;border-left:1px solid var(--hair);padding-left:10px;margin-left:2px}
.nav-links{display:flex;align-items:center;gap:2px}
.nav-links a{
  font-size:14px;padding:8px 14px;border-radius:999px;color:var(--ink);
  transition:background .2s ease;
}
.nav-links a:hover{background:rgba(29,29,31,.06)}
.nav-links a.active{background:var(--ink);color:#fff}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--accent);color:#fff;font-size:14px;font-weight:500;
  padding:9px 18px;border-radius:999px;margin-left:6px;
  transition:background .2s ease,transform .2s ease;
}
.nav-cta:hover{background:var(--accent-deep);transform:translateY(-1px)}
.nav-burger{display:none;width:40px;height:40px;border-radius:999px;position:relative}
.nav-burger i{position:absolute;left:11px;right:11px;height:1.6px;background:var(--ink);transition:transform .25s ease,top .25s ease}
.nav-burger i:nth-child(1){top:16px}
.nav-burger i:nth-child(2){top:23px}
body.menu-open .nav-burger i:nth-child(1){top:19.5px;transform:rotate(45deg)}
body.menu-open .nav-burger i:nth-child(2){top:19.5px;transform:rotate(-45deg)}

/* 移动端全屏菜单 */
.menu{
  position:fixed;inset:0;z-index:100;background:var(--paper);
  display:flex;flex-direction:column;justify-content:center;
  padding:0 clamp(24px,8vw,64px);
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s;
}
body.menu-open .menu{opacity:1;visibility:visible}
.menu a{
  font-family:var(--font-display);font-weight:600;
  font-size:clamp(34px,9vw,56px);line-height:1.25;letter-spacing:-.02em;
  display:flex;align-items:baseline;gap:16px;padding:10px 0;
  border-bottom:1px solid var(--hair);
  transform:translateY(16px);opacity:0;transition:transform .4s ease,opacity .4s ease;
}
.menu a small{font-family:var(--font-body);font-size:12px;color:var(--muted);letter-spacing:.14em}
body.menu-open .menu a{transform:none;opacity:1}
body.menu-open .menu a:nth-child(2){transition-delay:.05s}
body.menu-open .menu a:nth-child(3){transition-delay:.1s}
body.menu-open .menu a:nth-child(4){transition-delay:.15s}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 26px;border-radius:999px;
  font-size:15px;font-weight:500;letter-spacing:.01em;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease;
}
.btn i{transition:transform .2s ease}
.btn:hover i{transform:translateX(3px)}
.btn-dark{background:var(--ink);color:#fff}
.btn-dark:hover{transform:translateY(-2px);box-shadow:0 14px 30px -14px rgba(29,29,31,.5)}
.btn-blue{background:var(--accent);color:#fff}
.btn-blue:hover{background:var(--accent-deep);transform:translateY(-2px);box-shadow:0 14px 30px -12px rgba(0,113,227,.45)}
.btn-ghost{border:1px solid var(--hair);color:var(--ink);background:transparent}
.btn-ghost:hover{background:#fff;transform:translateY(-2px);box-shadow:0 12px 26px -16px rgba(29,29,31,.3)}

/* ---------- 段落标题体系 ---------- */
.kicker{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;font-weight:600;letter-spacing:.22em;text-transform:uppercase;
  color:var(--muted);margin-bottom:18px;
}
.kicker::before{content:"";width:26px;height:1px;background:var(--muted)}
.sec-title{font-size:clamp(34px,5.2vw,64px);max-width:16ch}
.sec-sub{color:var(--muted);font-size:clamp(15px,1.6vw,18px);max-width:52ch;margin-top:18px}

section{padding:clamp(72px,10vw,140px) 0;position:relative}

/* ---------- HERO ---------- */
.hero{
  min-height:100svh;
  display:flex;align-items:center;
  padding:calc(var(--nav-h) + 60px) 0 80px;
  position:relative;overflow:clip;
}
.hero-grid{
  display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(32px,5vw,72px);
  align-items:center;width:100%;
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);
  margin-bottom:26px;
}
.hero-eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 5px rgba(0,113,227,.14)}
.hero h1{
  font-size:clamp(46px,7.4vw,104px);
  font-weight:600;letter-spacing:-.03em;line-height:.98;
}
.hero h1 .row{display:block;overflow:hidden}
.hero h1 .row > span{display:inline-block;transform:translateY(110%);animation:rise 1s cubic-bezier(.22,1,.36,1) forwards}
.hero h1 .row:nth-child(2) > span{animation-delay:.12s}
.hero h1 .row:nth-child(3) > span{animation-delay:.24s}
.hero h1 em{font-style:normal;color:var(--accent)}
.hero h1 .outline{
  color:transparent;-webkit-text-stroke:1.5px var(--ink);
}
@keyframes rise{to{transform:none}}
.hero-lede{
  margin-top:28px;max-width:44ch;color:var(--muted);
  font-size:clamp(15px,1.7vw,19px);line-height:1.75;
}
.hero-lede b{color:var(--ink);font-weight:600}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px}
.hero-stats{
  display:flex;gap:clamp(24px,4vw,56px);margin-top:56px;
  padding-top:28px;border-top:1px solid var(--hair);
}
.hero-stats .num{font-family:var(--font-display);font-weight:600;font-size:clamp(26px,3vw,38px);letter-spacing:-.02em}
.hero-stats .num sup{font-size:.55em;color:var(--accent);top:-.6em}
.hero-stats .lbl{font-size:12.5px;color:var(--muted);margin-top:2px;letter-spacing:.04em}

/* Hero 背景细网格 */
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(to right,rgba(29,29,31,.045) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(29,29,31,.045) 1px,transparent 1px);
  background-size:88px 88px;
  mask-image:radial-gradient(ellipse 90% 70% at 60% 30%,#000 30%,transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse 90% 70% at 60% 30%,#000 30%,transparent 75%);
}

/* ---------- 卡片堆叠卡组（签名组件） ---------- */
.deck-zone{position:relative;display:flex;flex-direction:column;align-items:center}
.deck{
  position:relative;width:min(420px,88vw);height:clamp(430px,52vw,500px);
  perspective:1400px;
}
.deck-card{
  position:absolute;inset:0;border-radius:26px;
  background:var(--card);
  border:1px solid rgba(210,210,215,.85);
  box-shadow:0 30px 60px -28px rgba(29,29,31,.35);
  padding:26px;display:flex;flex-direction:column;
  transform-origin:50% 0%;
  transition:transform .55s cubic-bezier(.22,1,.36,1),opacity .45s ease,box-shadow .4s ease;
  will-change:transform;
}
.deck-card.is-top{box-shadow:0 44px 80px -30px rgba(29,29,31,.42)}
.deck-card.fly{
  transform:translateX(120%) rotate(10deg) translateY(-6%) !important;
  opacity:0;
}
.deck-visual{
  border-radius:18px;flex:1;min-height:0;
  display:flex;align-items:center;justify-content:center;
  font-size:clamp(56px,7vw,84px);
  margin-bottom:22px;position:relative;overflow:hidden;
}
.deck-visual::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:radial-gradient(circle at 30% 20%,rgba(255,255,255,.5),transparent 55%);
}
.deck-visual img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block}
.deck-visual i{position:relative;z-index:1}
.deck-meta{display:flex;align-items:flex-start;gap:14px}
.deck-num{
  font-family:var(--font-display);font-weight:500;font-size:13px;color:var(--muted);
  padding-top:5px;letter-spacing:.06em;
}
.deck-info{flex:1;min-width:0}
.deck-info h3{font-size:clamp(20px,2.2vw,25px);margin-bottom:6px}
.deck-info p{font-size:13.5px;color:var(--muted);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.deck-go{
  width:44px;height:44px;border-radius:50%;flex:none;
  border:1px solid var(--hair);display:flex;align-items:center;justify-content:center;
  color:var(--ink);transition:background .2s ease,color .2s ease,transform .2s ease;
}
.deck-card.is-top .deck-go:hover{background:var(--ink);color:#fff;transform:rotate(-38deg)}
.deck-ctrl{
  display:flex;align-items:center;gap:18px;margin-top:30px;
}
.deck-btn{
  width:46px;height:46px;border-radius:50%;
  border:1px solid var(--hair);background:#fff;
  display:flex;align-items:center;justify-content:center;font-size:14px;
  transition:background .2s ease,color .2s ease,transform .15s ease;
}
.deck-btn:hover{background:var(--ink);color:#fff}
.deck-btn:active{transform:scale(.92)}
.deck-count{font-size:13px;letter-spacing:.14em;color:var(--muted);min-width:64px;text-align:center}
.deck-count b{color:var(--ink);font-family:var(--font-display);font-size:16px;letter-spacing:.04em}
.deck-bar{width:120px;height:2px;background:rgba(29,29,31,.12);border-radius:2px;overflow:hidden}
.deck-bar i{display:block;height:100%;width:0;background:var(--ink)}

/* ---------- 跑马灯 ---------- */
.marquee{
  border-top:1px solid var(--hair);border-bottom:1px solid var(--hair);
  padding:22px 0;overflow:hidden;background:rgba(255,255,255,.5);
}
.marquee-track{display:flex;gap:56px;width:max-content;animation:marquee 30s linear infinite}
.marquee:hover .marquee-track{animation-play-state:paused}
.marquee-track span{
  font-family:var(--font-display);font-weight:500;font-size:15px;letter-spacing:.1em;
  color:var(--muted);display:flex;align-items:center;gap:56px;white-space:nowrap;
}
.marquee-track span::after{content:"";width:6px;height:6px;border-radius:50%;background:var(--hair)}
@keyframes marquee{to{transform:translateX(-50%)}}

/* ---------- 滚动堆叠：精选作品 ---------- */
.stack-section{background:#fff;border-top:1px solid var(--hair);border-bottom:1px solid var(--hair)}
.stack-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;flex-wrap:wrap;margin-bottom:clamp(40px,6vw,72px)}
.stack-list{display:flex;flex-direction:column;gap:26px}
.stack-item{
  position:sticky;
  top:calc(var(--nav-h) + 40px + var(--i) * 14px);
  transform-origin:50% 0;
}
.stack-card{
  border-radius:var(--radius);overflow:hidden;
  border:1px solid rgba(210,210,215,.9);
  background:var(--card);
  box-shadow:0 -14px 50px -30px rgba(29,29,31,.28);
  display:grid;grid-template-columns:1fr 1.05fr;
  min-height:clamp(360px,52vw,470px);
  transition:filter .3s ease;
}
.stack-card .sc-body{
  padding:clamp(28px,4vw,52px);display:flex;flex-direction:column;justify-content:center;gap:16px;
}
.stack-card .sc-cat{
  font-size:11.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);
  display:flex;align-items:center;gap:10px;
}
.stack-card .sc-cat::after{content:"";flex:0 0 30px;height:1px;background:var(--hair)}
.stack-card h3{font-size:clamp(28px,3.4vw,44px);letter-spacing:-.02em}
.stack-card .sc-desc{color:var(--muted);font-size:15.5px;max-width:38ch;line-height:1.75}
.stack-card .sc-host{
  font-size:13px;color:var(--ink);display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border:1px solid var(--hair);border-radius:999px;width:max-content;
}
.stack-card .sc-host i{font-size:11px;color:var(--muted)}
.stack-card .sc-link{
  margin-top:10px;display:inline-flex;align-items:center;gap:10px;
  font-weight:600;font-size:15px;color:var(--accent);
}
.stack-card .sc-link i{transition:transform .2s ease}
.stack-card .sc-link:hover i{transform:translate(3px,-3px)}
.stack-card .sc-visual{
  position:relative;display:flex;align-items:center;justify-content:center;
  font-size:clamp(72px,9vw,128px);overflow:hidden;
}
.stack-card .sc-visual::before{
  content:"";position:absolute;inset:0;z-index:1;
  background:radial-gradient(circle at 25% 15%,rgba(255,255,255,.55),transparent 50%);
}
.stack-card .sc-visual img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;display:block;transition:transform .6s cubic-bezier(.22,1,.36,1)}
.stack-card:hover .sc-visual img{transform:scale(1.045)}
.stack-card .sc-visual i{position:relative;transition:transform .5s cubic-bezier(.22,1,.36,1)}
.stack-card:hover .sc-visual i{transform:scale(1.08) rotate(-4deg)}
.stack-card .sc-num{
  position:absolute;right:26px;bottom:14px;z-index:2;
  font-family:var(--font-display);font-weight:700;
  font-size:clamp(80px,10vw,140px);line-height:1;letter-spacing:-.04em;
  color:rgba(29,29,31,.06);
}

/* ---------- 服务能力（非对称块） ---------- */
.svc-grid{
  display:grid;grid-template-columns:repeat(12,1fr);gap:22px;margin-top:clamp(44px,6vw,72px);
}
.svc{
  border:1px solid var(--hair);border-radius:24px;background:#fff;
  padding:clamp(26px,3vw,40px);position:relative;overflow:hidden;
  transition:transform .3s ease,box-shadow .3s ease;
}
.svc:hover{transform:translateY(-6px);box-shadow:0 30px 60px -34px rgba(29,29,31,.35)}
.svc .svc-no{
  font-size:12px;letter-spacing:.2em;color:var(--muted);margin-bottom:34px;display:block;
}
.svc h3{font-size:clamp(21px,2.3vw,27px);margin-bottom:12px;letter-spacing:-.01em}
.svc p{color:var(--muted);font-size:14.5px;line-height:1.75;max-width:34ch}
.svc .svc-ico{
  position:absolute;top:24px;right:24px;width:46px;height:46px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;font-size:18px;
  background:rgba(29,29,31,.05);color:var(--ink);
  transition:background .25s ease,color .25s ease,transform .25s ease;
}
.svc:hover .svc-ico{background:var(--ink);color:#fff;transform:rotate(-8deg)}
.svc-a{grid-column:1 / span 7}
.svc-e{grid-column:8 / span 5;transform:translateY(34px)}
.svc-e:hover{transform:translateY(28px)}
.svc-f{grid-column:1 / span 5;margin-top:-10px}
.svc-b{grid-column:6 / span 7;margin-top:24px}
.svc-c{grid-column:1 / span 7;margin-top:-6px}
.svc-d{grid-column:8 / span 5;margin-top:20px}
.svc.svc-dark{background:var(--ink);border-color:var(--ink)}
.svc.svc-dark h3,.svc.svc-dark .svc-no{color:#fff}
.svc.svc-dark p{color:rgba(255,255,255,.62)}
.svc.svc-dark .svc-ico{background:rgba(255,255,255,.12);color:#fff}
.svc.svc-dark:hover .svc-ico{background:#fff;color:var(--ink)}

/* ---------- 首页作品速览横条 ---------- */
.strip{margin-top:clamp(44px,6vw,72px)}
.strip-track{
  display:flex;gap:18px;overflow-x:auto;padding:8px 4px 26px;
  scroll-snap-type:x mandatory;scrollbar-width:none;
}
.strip-track::-webkit-scrollbar{display:none}
.strip-card{
  scroll-snap-align:start;flex:0 0 clamp(240px,26vw,300px);
  border:1px solid var(--hair);border-radius:22px;background:#fff;
  padding:22px;display:flex;flex-direction:column;gap:14px;
  position:relative;isolation:isolate;
  transition:transform .3s ease,box-shadow .3s ease;
}
.strip-card::before,.strip-card::after{
  content:"";position:absolute;inset:0;border-radius:22px;z-index:-1;
  border:1px solid var(--hair);background:#fff;
  transition:transform .35s cubic-bezier(.22,1,.36,1);
}
.strip-card::before{transform:translateY(0)}
.strip-card::after{transform:translateY(0)}
.strip-card:hover{transform:translateY(-8px);box-shadow:0 26px 50px -30px rgba(29,29,31,.35)}
.strip-card:hover::before{transform:translateY(10px) rotate(2.4deg)}
.strip-card:hover::after{transform:translateY(5px) rotate(-1.6deg)}
.strip-ico{
  width:52px;height:52px;border-radius:16px;font-size:20px;
  display:flex;align-items:center;justify-content:center;overflow:hidden;
}
.strip-ico img{width:100%;height:100%;object-fit:cover;display:block}
.strip-card h4{font-family:var(--font-display);font-weight:600;font-size:17px;letter-spacing:-.01em}
.strip-card p{font-size:12.5px;color:var(--muted);line-height:1.6;flex:1}
.strip-card .st-link{font-size:12px;color:var(--accent);font-weight:600;display:flex;align-items:center;gap:6px}

/* ---------- 页首（内页） ---------- */
.page-hero{padding:calc(var(--nav-h) + clamp(70px,10vw,120px)) 0 clamp(40px,6vw,64px)}
.page-hero .crumbs{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);margin-bottom:22px;display:flex;gap:12px;align-items:center}
.page-hero .crumbs i{font-size:10px}
.page-hero h1{font-size:clamp(42px,6.8vw,92px);letter-spacing:-.03em;line-height:1}
.page-hero h1 em{font-style:normal;color:var(--accent)}
.page-hero .lede{margin-top:22px;color:var(--muted);font-size:clamp(15px,1.7vw,18px);max-width:56ch;line-height:1.75}

/* ---------- 作品页：筛选 ---------- */
.filter-bar{
  display:flex;gap:10px;flex-wrap:wrap;align-items:center;
  margin:clamp(36px,5vw,56px) 0 8px;
}
.chip{
  padding:10px 20px;border-radius:999px;border:1px solid var(--hair);
  font-size:13.5px;font-weight:500;color:var(--ink);background:#fff;
  transition:all .2s ease;
}
.chip:hover{border-color:var(--ink)}
.chip.active{background:var(--ink);color:#fff;border-color:var(--ink)}
.chip .cnt{font-size:11px;color:var(--muted);margin-left:6px}
.chip.active .cnt{color:rgba(255,255,255,.6)}
.filter-meta{margin-left:auto;font-size:13px;color:var(--muted);letter-spacing:.06em}

/* ---------- 作品页：大卡组 ---------- */
.pdeck-wrap{
  margin-top:clamp(40px,6vw,64px);
  display:grid;grid-template-columns:1fr auto;gap:clamp(28px,5vw,72px);align-items:center;
  border:1px solid var(--hair);border-radius:32px;background:#fff;
  padding:clamp(28px,4.5vw,60px);
  overflow:hidden;position:relative;
}
.pdeck-wrap::before{
  content:"DECK";position:absolute;right:-8px;top:-30px;
  font-family:var(--font-display);font-weight:700;font-size:clamp(90px,14vw,190px);
  color:rgba(29,29,31,.035);letter-spacing:-.03em;pointer-events:none;
}
.pdeck-copy .kicker{margin-bottom:14px}
.pdeck-copy h2{font-size:clamp(28px,3.4vw,44px);letter-spacing:-.02em;max-width:14ch}
.pdeck-copy p{color:var(--muted);font-size:15px;line-height:1.75;max-width:38ch;margin-top:16px}
.pdeck-tips{margin-top:26px;display:flex;flex-direction:column;gap:10px}
.pdeck-tips li{display:flex;align-items:center;gap:12px;font-size:13.5px;color:var(--muted)}
.pdeck-tips i{width:30px;height:30px;border-radius:10px;background:rgba(29,29,31,.05);display:flex;align-items:center;justify-content:center;font-size:12px;color:var(--ink)}

/* ---------- 作品页：堆叠列表行 ---------- */
.plist{margin-top:clamp(40px,6vw,64px);display:flex;flex-direction:column;gap:20px}
.prow{
  position:relative;isolation:isolate;
  display:grid;grid-template-columns:86px 84px 1.2fr 1.6fr auto;gap:clamp(14px,2.5vw,32px);
  align-items:center;
  background:#fff;border:1px solid var(--hair);border-radius:24px;
  padding:clamp(18px,2.4vw,28px) clamp(20px,3vw,36px);
  transition:transform .3s ease,box-shadow .3s ease,opacity .3s ease;
}
.prow::before,.prow::after{
  content:"";position:absolute;inset:0;border-radius:24px;z-index:-1;
  background:#fff;border:1px solid var(--hair);
  transition:transform .35s cubic-bezier(.22,1,.36,1);
}
.prow:hover{transform:translateY(-5px);box-shadow:0 30px 56px -32px rgba(29,29,31,.32)}
.prow:hover::before{transform:translateY(9px) rotate(1.8deg)}
.prow:hover::after{transform:translateY(4.5px) rotate(-1.2deg)}
.prow .p-num{
  font-family:var(--font-display);font-weight:600;font-size:clamp(20px,2.4vw,28px);
  color:rgba(29,29,31,.22);letter-spacing:-.02em;
}
.prow .p-ico{
  width:clamp(52px,5vw,64px);height:clamp(52px,5vw,64px);border-radius:18px;
  display:flex;align-items:center;justify-content:center;font-size:clamp(19px,2vw,24px);
  transition:transform .3s ease;overflow:hidden;flex:none;
}
.prow .p-ico img{width:100%;height:100%;object-fit:cover;display:block}
.prow:hover .p-ico{transform:scale(1.06) rotate(-4deg)}
.prow .p-name h3{font-size:clamp(17px,1.9vw,21px);letter-spacing:-.01em;margin-bottom:4px}
.prow .p-name span{font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}
.prow .p-desc{font-size:13.5px;color:var(--muted);line-height:1.65}
.prow .p-link{
  display:inline-flex;align-items:center;gap:10px;
  padding:12px 22px;border-radius:999px;border:1px solid var(--hair);
  font-size:13.5px;font-weight:600;white-space:nowrap;
  transition:all .2s ease;
}
.prow .p-link:hover{background:var(--accent);border-color:var(--accent);color:#fff}
.prow .p-link:hover i{transform:translate(2px,-2px)}
.prow .p-link i{font-size:11px;transition:transform .2s ease}
.prow.hide{display:none}

/* ---------- 关于页 ---------- */
.about-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(32px,6vw,88px);align-items:start}
.about-sticky{position:sticky;top:calc(var(--nav-h) + 60px)}
.about-sticky .logo-box{
  border:1px solid var(--hair);border-radius:32px;background:#fff;
  padding:clamp(36px,5vw,64px);display:flex;flex-direction:column;align-items:center;gap:26px;
}
.about-sticky .logo-box img{width:clamp(140px,16vw,200px)}
.about-sticky .logo-box .tag{
  font-size:12px;letter-spacing:.3em;text-transform:uppercase;color:var(--muted);
}
.about-copy h2{font-size:clamp(28px,3.6vw,46px);letter-spacing:-.02em;margin-bottom:22px}
.about-copy p{color:#3a3a3e;font-size:16px;line-height:1.9;margin-bottom:20px}
.about-copy p b{color:var(--ink)}
.about-quote{
  border-left:2px solid var(--ink);padding:6px 0 6px 22px;margin:32px 0;
  font-family:var(--font-display);font-weight:500;font-size:clamp(19px,2.2vw,25px);
  letter-spacing:-.01em;line-height:1.5;
}
.milestones{margin-top:40px;display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.mile{
  border:1px solid var(--hair);border-radius:20px;background:#fff;padding:22px;
}
.mile .num{font-family:var(--font-display);font-weight:600;font-size:clamp(24px,2.8vw,34px)}
.mile .num sup{font-size:.5em;color:var(--accent)}
.mile .lbl{font-size:12.5px;color:var(--muted);margin-top:4px}

/* 流程步骤 */
.steps{margin-top:clamp(44px,6vw,72px);display:flex;flex-direction:column;gap:18px}
.step{
  position:sticky;top:calc(var(--nav-h) + 40px + var(--i) * 16px);
  display:grid;grid-template-columns:auto 1fr auto;gap:clamp(18px,3vw,40px);align-items:center;
  background:#fff;border:1px solid var(--hair);border-radius:24px;
  padding:clamp(22px,3vw,36px) clamp(24px,3.4vw,44px);
  box-shadow:0 -12px 40px -30px rgba(29,29,31,.25);
}
.step .s-no{
  font-family:var(--font-display);font-weight:700;font-size:clamp(30px,4vw,48px);
  color:transparent;-webkit-text-stroke:1.3px var(--ink);letter-spacing:-.02em;
}
.step h3{font-size:clamp(18px,2vw,23px);margin-bottom:6px}
.step p{color:var(--muted);font-size:14px;line-height:1.7;max-width:52ch}
.step .s-ico{
  width:54px;height:54px;border-radius:16px;background:var(--ink);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:19px;
}

/* 技术栈 */
.tech-grid{margin-top:clamp(40px,5vw,64px);display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.tech{
  border:1px solid var(--hair);border-radius:18px;background:#fff;
  padding:20px 22px;display:flex;align-items:center;gap:14px;
  transition:transform .25s ease,box-shadow .25s ease;
}
.tech:hover{transform:translateY(-4px);box-shadow:0 18px 36px -24px rgba(29,29,31,.3)}
.tech i{font-size:20px;width:40px;height:40px;border-radius:12px;background:rgba(29,29,31,.05);display:flex;align-items:center;justify-content:center}
.tech b{font-size:14.5px;font-weight:600;display:block}
.tech span{font-size:11.5px;color:var(--muted)}

/* ---------- CTA 横幅 ---------- */
.cta{
  background:var(--black);color:#fff;border-radius:36px;
  padding:clamp(48px,7vw,96px) clamp(28px,6vw,88px);
  position:relative;overflow:hidden;text-align:left;
  margin:0 auto;max-width:var(--maxw);
}
.cta::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(ellipse 60% 80% at 85% 15%,rgba(0,113,227,.35),transparent 60%);
}
.cta .kicker{color:rgba(255,255,255,.55)}
.cta .kicker::before{background:rgba(255,255,255,.4)}
.cta h2{font-size:clamp(32px,5vw,68px);letter-spacing:-.025em;max-width:18ch;position:relative}
.cta h2 em{font-style:normal;color:#5EB2FF}
.cta p{color:rgba(255,255,255,.6);margin-top:18px;max-width:46ch;position:relative}
.cta .hero-actions{position:relative}
.cta .btn-ghost{border-color:rgba(255,255,255,.28);color:#fff}
.cta .btn-ghost:hover{background:rgba(255,255,255,.1)}

/* CTA 右侧堆叠卡片装饰 */
.cta-art{
  position:absolute;right:clamp(28px,6vw,88px);top:50%;
  width:230px;height:290px;transform:translateY(-50%);
  pointer-events:none;
}
.cta-art span{
  position:absolute;inset:0;border-radius:22px;
  background:#fff;
  box-shadow:0 30px 60px -24px rgba(0,0,0,.5);
}
.cta-art .c1{transform:rotate(-9deg) translate(-14px,10px);opacity:.14}
.cta-art .c2{transform:rotate(6deg) translate(12px,-6px);opacity:.28}
.cta-art .c3{
  display:flex;align-items:center;justify-content:center;
  transform:rotate(-2deg);
  transition:transform .4s cubic-bezier(.22,1,.36,1);
}
.cta-art .c3 img{width:56%;filter:none}
.cta:hover .cta-art .c3{transform:rotate(0deg) translateY(-6px)}
@media (max-width:920px){.cta-art{display:none}}

/* ---------- 页脚 ---------- */
.footer{background:var(--black);color:#fff;margin-top:clamp(72px,10vw,140px)}
.footer .wrap{padding-top:clamp(56px,7vw,88px);padding-bottom:40px}
.foot-top{
  display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:clamp(32px,5vw,72px);
  padding-bottom:clamp(40px,5vw,64px);border-bottom:1px solid rgba(255,255,255,.14);
}
.foot-brand img{height:44px;filter:invert(1);margin-bottom:18px}
.foot-brand p{color:rgba(255,255,255,.55);font-size:14px;line-height:1.8;max-width:34ch}
.foot-col h5{font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:rgba(255,255,255,.45);margin-bottom:20px;font-weight:500}
.foot-col a{display:block;color:rgba(255,255,255,.78);font-size:14.5px;padding:6px 0;transition:color .2s ease,transform .2s ease}
.foot-col a:hover{color:#fff;transform:translateX(4px)}
.foot-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;
  padding-top:28px;font-size:12.5px;color:rgba(255,255,255,.42);
}
.foot-bottom a{color:rgba(255,255,255,.6)}
.foot-bottom a:hover{color:#fff}
.foot-mark{
  font-family:var(--font-display);font-weight:700;
  font-size:clamp(70px,14vw,200px);line-height:.9;letter-spacing:-.02em;
  color:rgba(255,255,255,.05);text-align:center;
  padding-top:clamp(24px,4vw,48px);user-select:none;pointer-events:none;
}

/* ---------- 滚动显现 ---------- */
.rv{opacity:0;transform:translateY(30px);transition:opacity .8s ease,transform .8s cubic-bezier(.22,1,.36,1)}
.rv.in{opacity:1;transform:none}
.rv-d1{transition-delay:.08s}.rv-d2{transition-delay:.16s}.rv-d3{transition-delay:.24s}.rv-d4{transition-delay:.32s}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .svc-a{grid-column:1 / span 12}
  .svc-b{grid-column:1 / span 12;margin-top:0}
  .svc-c{grid-column:1 / span 12;margin-top:0}
  .svc-d{grid-column:1 / span 12;margin-top:0}
  .svc-e{grid-column:1 / span 12;transform:none;margin-top:0}
  .svc-e:hover{transform:translateY(-6px)}
  .svc-f{grid-column:1 / span 12;margin-top:0}
  .tech-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:920px){
  .nav-links{display:none}
  .nav-cta{display:none}
  .nav-burger{display:block}
  .hero-grid{grid-template-columns:1fr;gap:56px}
  .hero{padding-top:calc(var(--nav-h) + 44px)}
  .deck{margin:0 auto}
  .pdeck-wrap{grid-template-columns:1fr}
  .pdeck-wrap .deck-zone{order:-1}
  .about-grid{grid-template-columns:1fr}
  .about-sticky{position:static}
  .stack-card{grid-template-columns:1fr;min-height:0}
  .stack-card .sc-visual{min-height:220px;order:-1;font-size:84px}
  .prow{grid-template-columns:64px 1fr;grid-template-areas:"ico name" "desc desc" "link link"}
  .prow .p-num{display:none}
  .prow .p-ico{grid-area:ico}
  .prow .p-name{grid-area:name}
  .prow .p-desc{grid-area:desc}
  .prow .p-link{grid-area:link;justify-content:center}
  .foot-top{grid-template-columns:1fr 1fr}
  .foot-brand{grid-column:1 / -1}
}
@media (max-width:560px){
  .hero-stats{flex-wrap:wrap;gap:20px 32px}
  .step{grid-template-columns:1fr;gap:14px}
  .step .s-ico{width:46px;height:46px}
  .tech-grid{grid-template-columns:1fr 1fr;padding:0}
  .milestones{grid-template-columns:1fr 1fr}
  .deck{height:430px}
  .filter-meta{width:100%;margin-left:0}
}

/* ---------- 减少动效 ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important}
  html{scroll-behavior:auto}
  .hero h1 .row > span{transform:none;animation:none}
  .rv{opacity:1;transform:none}
  .marquee-track{animation:none}
}