/* =========================================================
   弈境出海 v2 — dark editorial / instrument aesthetic
   ========================================================= */

:root{
  --bg:#0a2026;
  --bg-2:#0e282f;
  --panel:#245560;
  --panel-2:#2e6b77;
  --ink:#f2ece1;
  --ink-2:rgba(242,236,225,.80);
  --ink-3:rgba(238,243,242,.76);
  --line:rgba(186,224,229,.20);
  --line-2:rgba(242,236,225,.10);
  --accent:#d4602f;
  --accent-soft:rgba(212,96,47,.16);
  --copper:#c79a5b;
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",STSong,Georgia,serif;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --max:1280px;
  --pad:clamp(20px,4vw,48px);
  --ease:cubic-bezier(.2,.7,.2,1);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:
    radial-gradient(1200px 700px at 22% -16%, rgba(212,96,47,.16), rgba(212,96,47,0) 62%),
    radial-gradient(1100px 720px at 86% 2%, rgba(45,140,150,.20), rgba(45,140,150,0) 64%),
    radial-gradient(900px 520px at 50% 108%, rgba(216,168,105,.08), rgba(216,168,105,0) 66%),
    var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
/* 噪点改为静态、不参与混合合成（原全屏 mix-blend 会拖慢视频播放） */

img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;letter-spacing:-.01em;margin:0}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
::selection{background:var(--accent);color:#fff}
html{scrollbar-color:#2a2620 #0b0a09;scrollbar-width:thin}
::-webkit-scrollbar{width:10px}
::-webkit-scrollbar-track{background:#0b0a09}
::-webkit-scrollbar-thumb{background:#2a2620;border:3px solid #0b0a09}
::-webkit-scrollbar-thumb:hover{background:#3a342c}

.wrap{max-width:var(--max);margin:0 auto;padding:0 var(--pad)}
.skip{position:absolute;left:-9999px;top:0;background:var(--accent);color:#fff;padding:10px 16px;z-index:99}
.skip:focus{left:12px;top:12px}

.scroll-progress{
  position:fixed;top:0;left:0;height:1px;width:0;z-index:60;
  background:linear-gradient(90deg,var(--accent),var(--copper));
  box-shadow:0 0 12px rgba(212,96,47,.6);
}

/* ---------------- NAV ---------------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:50;
  border-bottom:1px solid transparent;
  transition:background .4s var(--ease),border-color .4s var(--ease),backdrop-filter .4s;
}
.nav.is-scrolled{
  background:rgba(11,32,37,.86);
  border-bottom-color:var(--line);
  backdrop-filter:saturate(140%) blur(14px);
}
.nav-inner{display:flex;align-items:center;gap:32px;height:76px}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink)}
.brand .mark{width:30px;height:30px;flex:none}
.brand span{font-family:var(--serif);font-size:1.06rem;letter-spacing:.14em;line-height:1.1}
.brand small{display:block;font-family:var(--sans);font-size:.58rem;letter-spacing:.32em;color:var(--ink-3);margin-top:3px}
.nav-links{display:flex;align-items:center;gap:34px;margin-left:auto}
.nav-links a{
  position:relative;font-size:.82rem;letter-spacing:.12em;color:var(--ink-2);
  padding:6px 0;transition:color .25s;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:0;
  background:var(--accent);transition:width .3s var(--ease);
}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after{width:100%}
.nav-cta-inline{display:none}
.nav-cta{
  font-size:.8rem;letter-spacing:.1em;padding:11px 22px;border:1px solid var(--line);
  color:var(--ink);transition:border-color .3s,background .3s,color .3s;
}
.nav-cta:hover{border-color:var(--accent);background:var(--accent);color:#fff}
.nav-toggle{
  display:none;width:40px;height:40px;background:none;border:1px solid var(--line);
  margin-left:auto;cursor:pointer;padding:11px 10px;
}
.nav-toggle span{display:block;height:1px;background:var(--ink);margin:4px 0;transition:transform .3s,opacity .2s}
.nav-scrim{position:fixed;inset:0;background:rgba(0,0,0,.6);opacity:0;visibility:hidden;transition:.3s;z-index:45;backdrop-filter:blur(2px)}

/* ---------------- HERO ---------------- */
.hero{
  position:relative;min-height:100vh;min-height:100svh;
  display:flex;flex-direction:column;justify-content:center;
  padding:132px 0 40px;overflow:hidden;
}
.hero-media{position:absolute;inset:0;z-index:0;background:#080706}
.hero-media::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:.35;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23n)' opacity='.35'/%3E%3C/svg%3E")}
.hero-media canvas{position:absolute;inset:0;width:100%;height:100%;display:block}
.hero-veil{
  position:absolute;inset:0;
  background:
    linear-gradient(90deg,rgba(8,26,31,.92) 0%,rgba(8,26,31,.72) 26%,rgba(8,26,31,.10) 48%,rgba(8,26,31,0) 70%),
    linear-gradient(180deg,rgba(8,26,31,.55) 0%,rgba(8,26,31,0) 22%,rgba(8,26,31,.18) 76%,var(--bg) 100%);
}
.hero-hairlines{
  position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(90deg,var(--line-2) 1px,transparent 1px);
  background-size:calc(100% / 6) 100%;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,.25) 70%,transparent);
  opacity:.55;
}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1fr);gap:40px;align-items:center;width:100%}
.hero-copy{max-width:720px}
.eyebrow{
  display:flex;align-items:center;gap:12px;
  font-size:.8rem;letter-spacing:.26em;color:#dcb273;text-transform:uppercase;margin-bottom:26px;
}
.eyebrow i{display:block;width:46px;height:1px;background:linear-gradient(90deg,var(--accent),transparent)}
.hero h1{
  font-size:clamp(2.5rem,5.4vw,4.6rem);
  line-height:1.14;letter-spacing:-.02em;font-weight:600;
  margin-bottom:30px;
}
.hero h1 .hl{
  position:relative;color:var(--accent);white-space:nowrap;
}
.hero h1 .hl::after{
  content:"";position:absolute;left:0;right:0;bottom:.06em;height:1px;
  background:linear-gradient(90deg,rgba(212,96,47,.8),rgba(199,154,91,.15));
}
.hero .lede{
  max-width:720px;color:rgba(242,236,225,.92);font-size:clamp(1.06rem,1.35vw,1.22rem);
  line-height:1.75;margin:0 0 14px;letter-spacing:.01em;text-wrap:pretty;
}
.hero .hero-sub{
  max-width:640px;color:rgba(242,236,225,.74);font-size:.92rem;line-height:1.95;margin:0;text-wrap:pretty;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:38px}
.hero-note{margin-top:22px;font-size:.76rem;letter-spacing:.06em;color:var(--ink-3)}

.btn{
  display:inline-flex;align-items:center;gap:12px;
  padding:15px 28px;font-size:.86rem;letter-spacing:.08em;
  border:1px solid var(--line);background:transparent;color:var(--ink);
  cursor:pointer;transition:background .3s var(--ease),border-color .3s,color .3s,transform .3s;
  font-family:var(--sans);
}
.btn .arrow{transition:transform .3s var(--ease)}
.btn:hover .arrow{transform:translateX(5px)}
.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff}
.btn-primary:hover{background:#e06c36;border-color:#e06c36;transform:translateY(-1px)}
.btn-ghost{border-color:rgba(242,236,225,.3);color:var(--ink)}
.btn-ghost:hover{border-color:rgba(242,236,225,.65);background:rgba(242,236,225,.06)}
.btn-block{width:100%;justify-content:center;margin-top:8px}

.hero-side{position:relative;align-self:stretch;min-height:280px;display:flex;align-items:center;justify-content:flex-end}
.hero-panel{
  width:100%;max-width:340px;
  background:rgba(11,10,9,.86);
  border:1px solid rgba(242,236,225,.2);
  backdrop-filter:blur(10px) saturate(120%);
  padding:20px 22px 14px;
  box-shadow:0 30px 80px -30px rgba(0,0,0,.9);
}
.panel-head{display:flex;justify-content:space-between;align-items:baseline;
  font-size:.64rem;letter-spacing:.26em;color:rgba(242,236,225,.72);text-transform:uppercase;
  padding-bottom:14px;border-bottom:1px solid rgba(242,236,225,.12)}
.mono{font-variant-numeric:tabular-nums;letter-spacing:.16em}
.panel-list li{display:flex;align-items:center;gap:12px;padding:10px 0;border-bottom:1px solid rgba(242,236,225,.09);font-size:.84rem;color:rgba(242,236,225,.9)}
.panel-list li:last-child{border-bottom:0}
.panel-list .pi{font-size:.62rem;color:rgba(242,236,225,.55);width:22px}
.panel-list span:nth-child(2){flex:1;letter-spacing:.04em}
.pi-dot{width:5px;height:5px;border-radius:50%;background:var(--accent);opacity:.55;box-shadow:0 0 8px rgba(212,96,47,.7);animation:piPulse 3.2s ease-in-out infinite}
.panel-list li:nth-child(2) .pi-dot{animation-delay:.4s}
.panel-list li:nth-child(3) .pi-dot{animation-delay:.8s}
.panel-list li:nth-child(4) .pi-dot{animation-delay:1.2s}
.panel-list li:nth-child(5) .pi-dot{animation-delay:1.6s}
.panel-list li:nth-child(6) .pi-dot{animation-delay:2s}
@keyframes piPulse{0%,100%{opacity:.35}50%{opacity:1}}
.panel-foot{display:flex;justify-content:space-between;gap:10px;margin-top:12px;padding-top:12px;border-top:1px solid rgba(242,236,225,.12);font-size:.6rem;letter-spacing:.18em;color:rgba(242,236,225,.6)}
.hero-coord{
  position:absolute;right:var(--pad);top:104px;z-index:2;
  display:flex;flex-direction:column;align-items:flex-end;gap:4px;
  font-size:.62rem;letter-spacing:.24em;color:rgba(242,236,225,.5);
  font-variant-numeric:tabular-nums;text-transform:uppercase;
}
.hero-coord span:last-child{color:rgba(242,236,225,.34)}
.hero-tick{position:absolute;width:26px;height:26px;border:1px solid var(--line)}
.hero-tick.tl{left:0;top:0;border-right:0;border-bottom:0}
.hero-tick.br{right:0;bottom:0;border-left:0;border-top:0}

.hero-stats{
  position:relative;z-index:1;margin-top:clamp(40px,6vh,64px);
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));max-width:980px;
  border-top:1px solid var(--line);margin-top:clamp(48px,7vh,90px);
}
.stat{display:flex;align-items:baseline;gap:4px;padding:24px 26px 6px 0;border-right:1px solid var(--line-2);min-width:0}
.stat:last-child{border-right:0}
.stat .num{
  font-family:var(--serif);font-size:2.6rem;line-height:1;color:var(--ink);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.stat .lab{font-size:.8rem;line-height:1.6;color:var(--ink-2);min-width:0}
.stat .lab b{display:block;font-weight:500;color:var(--ink);font-size:.88rem;letter-spacing:.04em}
.stat .lab em{display:block;font-style:normal;color:var(--ink-3);font-size:.72rem;margin-top:3px;line-height:1.55}

/* hero 入场 */
.hero-anim{opacity:0;transform:translateY(18px);animation:heroIn .9s var(--ease) forwards;animation-delay:var(--d,0ms)}
@keyframes heroIn{to{opacity:1;transform:none}}

/* ---------------- MARQUEE ---------------- */
.marquee{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  overflow:hidden;background:var(--bg-2);padding:18px 0;
}
.marquee-track{display:flex;align-items:center;gap:34px;width:max-content;animation:marq 42s linear infinite}
.marquee span{font-size:.78rem;letter-spacing:.24em;color:var(--ink-2);white-space:nowrap;text-transform:uppercase}
.marquee i{display:block;width:4px;height:4px;background:var(--accent);opacity:.7;transform:rotate(45deg)}
@keyframes marq{to{transform:translateX(-50%)}}

/* ---------------- SECTION ---------------- */
.sec{padding:clamp(80px,11vh,140px) 0;position:relative}
.sec-alt{background:linear-gradient(180deg,#0f3038 0%,#0d282f 50%,#0b232a 100%);border-top:1px solid rgba(180,222,228,.10);border-bottom:1px solid rgba(180,222,228,.10)}
.sec-head{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(24px,5vw,80px);align-items:end;margin-bottom:clamp(44px,6vh,72px)}
.sec-label{
  display:flex;align-items:center;gap:14px;margin-bottom:22px;
  font-size:.7rem;letter-spacing:.3em;color:var(--ink-3);text-transform:uppercase;
}
.sec-label span{color:var(--accent);font-variant-numeric:tabular-nums}
.sec-label::after{content:"";flex:1;height:1px;background:var(--line-2)}
.sec-head h2{font-size:clamp(1.9rem,3.4vw,3rem);line-height:1.2;letter-spacing:-.02em;grid-column:1}
.sec-head p{color:var(--ink-2);font-size:.96rem;line-height:1.9;grid-column:2;padding-bottom:6px;max-width:520px}

/* ---------------- CARDS ---------------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line-2);border:1px solid var(--line-2)}
.card{
  position:relative;padding:34px 30px 38px;
  background:
    linear-gradient(180deg,rgba(190,228,232,.10),rgba(190,228,232,0) 52%),
    var(--panel);
  border:1px solid rgba(186,224,229,.17);
  box-shadow:0 1px 0 rgba(200,235,238,.06) inset, 0 26px 50px -34px rgba(0,0,0,.85);
  transition:background .35s var(--ease),transform .35s var(--ease);
  overflow:hidden;
}
.card::after{
  content:"";position:absolute;inset:0;opacity:0;pointer-events:none;transition:opacity .35s;
  background:radial-gradient(420px circle at var(--mx,50%) var(--my,0%),rgba(212,96,47,.10),transparent 60%);
}
.card:hover::after{opacity:1}
.card-num{
  display:block;font-family:var(--serif);font-size:.78rem;letter-spacing:.2em;color:var(--accent);margin-bottom:26px;
}
.card h3{font-size:1.22rem;margin-bottom:14px;letter-spacing:.01em}
.card p{color:var(--ink-2);font-size:.9rem;line-height:1.85}
.card-line{position:absolute;left:0;bottom:0;height:1px;width:0;background:var(--accent);transition:width .5s var(--ease)}
.card:hover .card-line{width:100%}
.card:hover{background:var(--panel-2)}

/* ---------------- BENTO ---------------- */
.bento{
  display:grid;grid-template-columns:repeat(6,1fr);gap:14px;background:transparent;border:0;
}
.bento .card{
  border:1px solid rgba(186,224,229,.16);border-radius:3px;
  box-shadow:0 1px 0 rgba(200,235,238,.05) inset, 0 22px 44px -34px rgba(0,0,0,.9);
}
.svc{display:flex;flex-direction:column;gap:16px}
.span-2{grid-column:span 2}
.span-3{grid-column:span 3}
.span-6{grid-column:span 6}
.svc-wide{flex-direction:row;align-items:center;gap:34px}
.svc-wide > div{flex:1}
.svc-wide .tags{flex:none;max-width:340px;justify-content:flex-end}
.svc-icon{
  width:46px;height:46px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
  color:var(--ink-2);transition:color .35s,border-color .35s,background .35s;
}
.svc-icon svg{width:22px;height:22px}
.card:hover .svc-icon{color:var(--accent);border-color:rgba(212,96,47,.5);background:var(--accent-soft)}
.svc h3{font-size:1.28rem}
.svc p{color:var(--ink-2);font-size:.9rem;line-height:1.85}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto}
.tags li{
  font-size:.72rem;letter-spacing:.06em;color:var(--ink-2);
  border:1px solid var(--line);padding:6px 12px;
  transition:border-color .3s,color .3s;
}
.card:hover .tags li{border-color:rgba(242,236,225,.22);color:var(--ink)}

/* ---------------- PROCESS ---------------- */
.process{position:relative}
.process-rail{position:absolute;left:0;right:0;top:0;height:1px;background:var(--line)}
.process-rail::before,.process-rail::after{content:"";position:absolute;top:-3px;width:1px;height:7px;background:var(--line)}
.process-rail::before{left:0}
.process-rail::after{right:0}
.process-fill{height:1px;width:0;background:linear-gradient(90deg,var(--accent),var(--copper));transition:width .2s linear;box-shadow:0 0 14px rgba(212,96,47,.55)}
.steps{display:grid;grid-template-columns:repeat(5,1fr);gap:1px;background:var(--line-2)}
.step{position:relative;background:var(--bg);padding:34px 26px 44px;transition:background .35s}
.step:hover{background:var(--panel)}
.step::before{content:"";position:absolute;left:50%;top:-5px;width:9px;height:9px;margin-left:-4.5px;background:var(--bg);border:1px solid rgba(242,236,225,.35);transform:rotate(45deg);transition:border-color .3s,background .3s,box-shadow .3s}
.step:hover::before{border-color:var(--accent);background:var(--accent);box-shadow:0 0 12px rgba(212,96,47,.7)}
.step-top{display:flex;align-items:baseline;justify-content:space-between;margin-bottom:30px}
.step-i{font-family:var(--serif);font-size:1.7rem;color:var(--ink);font-variant-numeric:tabular-nums}
.step-k{font-size:.68rem;letter-spacing:.26em;color:var(--ink-3)}
.step h3{font-size:1.08rem;margin-bottom:12px}
.step p{font-size:.88rem;line-height:1.9;color:var(--ink-2)}

/* ---------------- CASES ---------------- */
.cases{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line-2);border:1px solid var(--line-2)}
.case{background:var(--panel);padding:40px 36px;transition:background .35s}
.case:hover{background:var(--panel-2)}
.case-head{display:flex;align-items:baseline;justify-content:space-between;gap:16px;padding-bottom:18px;border-bottom:1px solid var(--line-2);margin-bottom:22px}
.case h3{font-size:1.5rem}
.case h3 span{font-family:var(--sans);font-size:.76rem;letter-spacing:.18em;color:var(--ink-3);margin-left:10px}
.case-tag{font-size:.68rem;letter-spacing:.2em;color:var(--accent);border:1px solid rgba(212,96,47,.35);padding:4px 10px;white-space:nowrap}
.case p{color:var(--ink-2);font-size:.92rem;line-height:1.9;margin-bottom:24px}

/* ---------------- FIT ---------------- */
.fit{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line-2);border:1px solid var(--line-2)}
.fit-col{background:var(--panel);padding:40px 36px}
.fit-col h3{display:flex;align-items:center;gap:12px;font-size:1.1rem;letter-spacing:.06em;margin-bottom:26px}
.fit-col .dot{width:7px;height:7px;transform:rotate(45deg);display:block}
.fit-yes .dot{background:var(--accent)}
.fit-no .dot{background:var(--ink-3)}
.fit-col li{position:relative;padding:13px 0 13px 24px;font-size:.92rem;color:var(--ink-2);border-top:1px solid var(--line-2)}
.fit-col li:first-child{border-top:0}
.fit-col li::before{content:"";position:absolute;left:0;top:22px;width:8px;height:1px;background:var(--ink-3)}
.fit-yes li::before{background:var(--accent);box-shadow:0 0 8px rgba(212,96,47,.6)}

/* ---------------- FAQ ---------------- */
.faq{border-top:1px solid var(--line)}
.faq details{border-bottom:1px solid var(--line)}
.faq summary{
  list-style:none;cursor:pointer;padding:26px 56px 26px 0;position:relative;
  font-family:var(--serif);font-size:1.08rem;letter-spacing:.01em;transition:color .25s;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--accent)}
.faq summary i{
  position:absolute;right:6px;top:50%;width:12px;height:12px;margin-top:-6px;
  transition:transform .35s var(--ease);
}
.faq summary i::before,.faq summary i::after{
  content:"";position:absolute;background:var(--ink-2);transition:background .3s;
}
.faq summary i::before{left:0;top:5.5px;width:12px;height:1px}
.faq summary i::after{left:5.5px;top:0;width:1px;height:12px}
.faq details[open] summary i{transform:rotate(135deg)}
.faq details[open] summary i::before,.faq details[open] summary i::after{background:var(--accent)}
.faq details p{padding:0 56px 30px 0;color:var(--ink-2);font-size:.94rem;line-height:1.95;max-width:900px}

/* ---------------- CONTACT ---------------- */
.contact{border-top:1px solid var(--line-2);background:radial-gradient(900px 420px at 78% 12%,rgba(212,96,47,.10),transparent 65%)}
.contact-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(32px,6vw,88px);align-items:start}
.contact h2{font-size:clamp(1.9rem,3.4vw,2.9rem);line-height:1.22;margin-bottom:22px}
.contact .lede{color:var(--ink-2);max-width:520px}
.contact-cards{display:grid;grid-template-columns:auto 1fr;gap:1px;background:var(--line-2);border:1px solid var(--line-2);margin-top:40px}
.cc{background:var(--panel);padding:26px}
.cc-k{display:block;font-size:.66rem;letter-spacing:.26em;color:var(--ink-3);text-transform:uppercase;margin-bottom:16px}
.cc img{width:148px;height:148px;background:#fff;padding:6px;margin:0 auto 4px}
.cc:first-child p{text-align:center}
.cc p{font-size:.8rem;color:var(--ink-2);line-height:1.8;margin-top:14px}
.cc p em{font-style:normal;color:var(--ink-3)}
.cc-text a{font-family:var(--serif);font-size:1.16rem;border-bottom:1px solid var(--line);padding-bottom:3px;transition:color .25s,border-color .25s;word-break:break-all}
.cc-text a:hover{color:var(--accent);border-color:var(--accent)}

.form-wrap{background:var(--panel);border:1px solid var(--line);padding:clamp(26px,3vw,40px)}
.form-wrap h3{font-size:1.3rem;margin-bottom:6px}
.form-hint{font-size:.78rem;color:var(--ink-3);margin-bottom:26px}
.field{margin-bottom:18px}
.field label{display:block;font-size:.74rem;letter-spacing:.12em;color:rgba(242,236,225,.78);margin-bottom:8px}
.field label span{color:var(--accent)}
.field input,.field select,.field textarea{
  width:100%;background:rgba(242,236,225,.05);border:1px solid rgba(242,236,225,.18);
  color:var(--ink);font-family:var(--sans);font-size:.92rem;padding:12px 14px;
  transition:border-color .25s,background .25s;appearance:none;border-radius:0;
}
.field textarea{resize:vertical;min-height:84px}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:rgba(212,96,47,.6);background:rgba(212,96,47,.05);
}
.field select{background-image:linear-gradient(45deg,transparent 50%,var(--ink-3) 50%),linear-gradient(135deg,var(--ink-3) 50%,transparent 50%);background-position:calc(100% - 18px) 20px,calc(100% - 13px) 20px;background-size:5px 5px,5px 5px;background-repeat:no-repeat}
.field select option{background:#161412;color:var(--ink)}
.hp{position:absolute;left:-9999px;opacity:0;height:0}
.form-status{font-size:.82rem;margin-top:14px;min-height:1.2em}
.form-status.ok{color:var(--copper)}
.form-status.err{color:#e2725b}
.form-legal{font-size:.7rem;color:var(--ink-3);margin-top:14px;line-height:1.7}
.form-legal a{border-bottom:1px solid var(--line)}

/* ---------------- FOOTER ---------------- */
.footer{border-top:1px solid var(--line);background:#080706;padding:clamp(56px,7vh,84px) 0 30px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:clamp(24px,4vw,56px)}
.footer .brand{margin-bottom:18px;color:var(--ink)}
.footer-desc{font-size:.84rem;color:var(--ink-3);line-height:1.9}
.footer-col h4{font-family:var(--sans);font-size:.66rem;letter-spacing:.26em;text-transform:uppercase;color:var(--ink-3);margin-bottom:18px;font-weight:500}
.footer-col a{display:block;font-size:.86rem;color:var(--ink-2);padding:5px 0;transition:color .25s}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  margin-top:56px;padding-top:22px;border-top:1px solid var(--line-2);
  font-size:.72rem;letter-spacing:.08em;color:var(--ink-3);
}

/* ---------------- REVEAL ---------------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------------- RESPONSIVE ---------------- */
@media (max-width:1100px){
  .hero{min-height:auto;justify-content:flex-start;padding-bottom:48px}
  .hero-inner{grid-template-columns:1fr}
  .hero-side{display:none}
  .sec-head{grid-template-columns:1fr;gap:18px}
  .sec-head p{grid-column:1}
  .bento{grid-template-columns:repeat(2,1fr)}
  .span-2,.span-3,.span-6{grid-column:span 1}
  .svc-wide{grid-column:span 2;flex-direction:column;align-items:flex-start}
  .svc-wide .tags{max-width:none;justify-content:flex-start}
  .steps{grid-template-columns:1fr 1fr}
  .process-rail,.process-fill{display:none}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:1000px){
  .nav-links{
    position:fixed;top:76px;right:12px;left:12px;
    flex-direction:column;align-items:flex-start;gap:0;margin:0;
    background:rgba(14,13,11,.98);border:1px solid var(--line);
    padding:8px 22px 18px;opacity:0;visibility:hidden;transform:translateY(-8px);
    transition:opacity .28s,transform .28s,visibility .28s;z-index:48;
  }
  body.nav-open .nav-links{opacity:1;visibility:visible;transform:none}
  body.nav-open .nav-scrim{opacity:1;visibility:visible}
  .nav-links a{width:100%;padding:16px 0;border-bottom:1px solid var(--line-2);font-size:.92rem}
  .nav-links a::after{display:none}
  .nav-cta-inline{display:block;color:var(--accent)!important;border-bottom:0!important;padding-bottom:0!important}
  .nav-cta{display:none}
  .nav-toggle{display:block}
  body.nav-open{overflow:hidden}
  body.nav-open .nav-toggle span:nth-child(1){transform:translateY(5px) rotate(45deg)}
  body.nav-open .nav-toggle span:nth-child(2){opacity:0}
  body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}
  .hero{padding-top:112px}
  .hero-stats{grid-template-columns:1fr;border-top:1px solid var(--line)}
  .stat{border-right:0;border-bottom:1px solid var(--line-2);padding:18px 0}
  .stat:last-child{border-bottom:0}
}
@media (max-width:720px){
  .hero h1{font-size:clamp(2rem,8.4vw,2.7rem)}
  .hero-actions .btn{width:100%;justify-content:center}
  .grid-3,.cases,.fit,.contact-grid{grid-template-columns:1fr}
  .bento{grid-template-columns:1fr}
  .svc-wide{grid-column:span 1}
  .steps{grid-template-columns:1fr}
  .sec{padding:64px 0}
  .footer-grid{grid-template-columns:1fr}
  .contact-cards{grid-template-columns:1fr}
  .cc img{width:132px;height:132px}
  .field input,.field select,.field textarea{font-size:16px}
  .faq summary{font-size:1rem;padding-right:44px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  .reveal{opacity:1;transform:none}
  .hero-media video{display:none}
}

.nw{white-space:nowrap}

.trust-line{display:flex;align-items:center;justify-content:space-between;gap:22px;flex-wrap:wrap;margin-top:32px;padding-top:20px;border-top:1px solid var(--line-2)}
.trust-p{font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:rgba(238,243,242,.74);line-height:1.9;white-space:nowrap}
.trust-v{color:rgba(242,236,225,.86)}
.trust-line i{width:3px;height:3px;background:var(--accent);transform:rotate(45deg);opacity:.75;flex:none}
@media (max-width:900px){.trust-line{justify-content:flex-start;gap:12px 16px}}
@media (max-width:720px){.trust-p{font-size:.62rem;letter-spacing:.09em}}

/* 小屏用静态海报，Canvas 只在桌面/平板绘制 */
/* 手机端也为 Canvas 留出顶部空间，动画照常运行 */
@media (max-width:720px){
  .hero{padding-top:176px}
  .hero-media::after{opacity:.45}
}