/* Coexis.ai · 星河版（沿用 My People 展示的深空视觉） */
:root{
  --space:#050c16; --ink:#07111d; --ink-2:#0b1828; --ink-3:#10213a;
  --line:#1c2f45; --line-2:#2b4057;
  --fg:#e9eef3; --fg-dim:#b3c2d1; --fg-faint:#7f93a7;
  --gold:#ddb673; --gold-soft:rgba(221,182,115,.12); --blue:#8cc0ec; --teal:#74c7ae; --coral:#e48e73;
  --max:1160px; --r:18px;
  --sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Segoe UI",sans-serif;
  --serif:"Iowan Old Style",Palatino,"Songti SC","STSong","Noto Serif SC","Source Han Serif SC",serif;
  --mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:76px}
html,body{margin:0;padding:0;background:var(--space);color:var(--fg);font-family:var(--sans);
  -webkit-font-smoothing:antialiased;-webkit-text-size-adjust:100%}
body{overflow-x:hidden;line-height:1.65;
  background:
    radial-gradient(1px 1px at 12% 18%,rgba(255,255,255,.55) 50%,transparent 51%),
    radial-gradient(1px 1px at 72% 32%,rgba(255,255,255,.45) 50%,transparent 51%),
    radial-gradient(1.5px 1.5px at 38% 64%,rgba(221,182,115,.55) 50%,transparent 51%),
    radial-gradient(1px 1px at 88% 78%,rgba(255,255,255,.4) 50%,transparent 51%),
    radial-gradient(1px 1px at 22% 88%,rgba(140,192,236,.5) 50%,transparent 51%),
    radial-gradient(60% 40% at 80% 0%,rgba(40,80,150,.18),transparent 70%),
    var(--space);
  background-size:520px 520px,610px 610px,700px 700px,480px 480px,560px 560px,100% 100%,100% 100%}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
img{height:auto}
.wrap{max-width:var(--max);margin:0 auto;padding:0 clamp(16px,4vw,32px)}
.mono{font-family:var(--mono)}
.serif{font-family:var(--serif)}

/* 顶栏 */
header.top{position:sticky;top:0;z-index:40;background:rgba(5,12,22,.72);
  -webkit-backdrop-filter:blur(16px) saturate(140%);backdrop-filter:blur(16px) saturate(140%);border-bottom:1px solid rgba(43,64,87,.6)}
.bar{display:flex;align-items:center;justify-content:space-between;gap:16px;height:64px}
.logo{display:flex;align-items:center;gap:10px;min-height:44px;flex:none}
.logo img{width:24px;height:27px}
.logo b{font-weight:800;font-size:19px;letter-spacing:-.02em}
.logo b span{color:var(--gold)}
header.top nav{display:flex;gap:2px;align-items:center}
header.top nav a{padding:10px 12px;border-radius:10px;font-size:14.5px;color:var(--fg-dim);transition:color .15s,background .15s}
header.top nav a:hover,header.top nav a[aria-current]{color:var(--fg);background:rgba(43,64,87,.45)}
@media(max-width:880px){header.top nav{display:none}}
@media(max-height:500px){header.top{position:relative}html{scroll-padding-top:8px}}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 22px;
  border-radius:999px;font-weight:700;font-size:15px;background:var(--gold);color:#1a1206;white-space:nowrap;
  transition:transform .15s ease,box-shadow .15s ease,background .15s}
.btn:hover{transform:translateY(-1px);box-shadow:0 10px 30px rgba(221,182,115,.28);background:#e7c486}
.btn.sm{min-height:44px;padding:0 18px;font-size:14px}
.btn.ghost{background:rgba(11,24,40,.55);color:var(--fg);border:1px solid var(--line-2)}
.btn.ghost:hover{border-color:var(--fg-faint);box-shadow:none;background:rgba(16,33,58,.8)}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}

/* 首屏：星河底图 */
.hero{position:relative;overflow:hidden;isolation:isolate;padding:clamp(72px,11vw,140px) 0 clamp(64px,9vw,120px)}
.hero::before{content:"";position:absolute;inset:0;z-index:-2;pointer-events:none;background:url(/assets/galaxy.jpg) 70% 42%/cover no-repeat}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;
  background:linear-gradient(90deg,rgba(5,12,22,.96) 0%,rgba(5,12,22,.82) 38%,rgba(5,12,22,.25) 72%,rgba(5,12,22,.35) 100%),
             linear-gradient(0deg,var(--space) 0%,rgba(5,12,22,0) 30%)}
@media(max-width:760px){
  .hero::before{background-position:62% 30%}
  .hero::after{background:linear-gradient(180deg,rgba(5,12,22,.55) 0%,rgba(5,12,22,.86) 55%,var(--space) 100%)}
}
.kicker{display:inline-flex;align-items:center;gap:10px;font-family:var(--mono);font-size:13px;letter-spacing:.14em;color:var(--gold);
  border:1px solid rgba(221,182,115,.35);background:rgba(5,12,22,.5);border-radius:999px;padding:7px 14px}
.kicker i{width:6px;height:6px;border-radius:50%;background:var(--gold);box-shadow:0 0 10px var(--gold);flex:none}
.hero h1{font-family:var(--serif);font-size:clamp(40px,6.6vw,80px);line-height:1.08;font-weight:700;letter-spacing:-.01em;margin:26px 0 0;max-width:12em}
.hero h1 em{font-style:normal;color:var(--gold)}
.hero .sub{margin:24px 0 0;font-size:clamp(16px,1.9vw,19px);line-height:1.85;color:var(--fg-dim);max-width:33em}
.hero .sub b{color:var(--fg);font-weight:600}
.hero .en{margin:16px 0 0;font-family:var(--mono);font-size:13.5px;letter-spacing:.06em;color:var(--blue)}

/* 区块 */
section{padding:clamp(72px,9vw,120px) 0;position:relative}
section+section{border-top:1px solid rgba(43,64,87,.45)}
.eyebrow{font-family:var(--mono);font-size:13px;letter-spacing:.18em;color:var(--gold);text-transform:uppercase}
.h2{font-family:var(--serif);font-size:clamp(30px,4.2vw,48px);line-height:1.18;font-weight:700;letter-spacing:-.005em;margin:12px 0 16px}
.lede{color:var(--fg-dim);font-size:16.5px;line-height:1.9;max-width:40em;margin:0 0 44px}
.card{background:linear-gradient(180deg,rgba(16,33,58,.55),rgba(11,24,40,.72));border:1px solid var(--line);border-radius:var(--r);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}

/* 四件事 */
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.pillar{display:flex;flex-direction:column;padding:26px 24px 22px;transition:border-color .2s,transform .2s}
.pillar:hover{border-color:var(--line-2);transform:translateY(-2px)}
.pillar .no{font-family:var(--mono);font-size:13px;letter-spacing:.14em;color:var(--fg-faint)}
.pillar .ic{width:42px;height:42px;border-radius:12px;background:var(--gold-soft);display:grid;place-items:center;margin:18px 0 16px}
.pillar .ic svg{width:22px;height:22px;stroke:var(--gold);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.pillar h3{margin:0;font-size:21px;font-weight:800}
.pillar .tag{font-size:13.5px;color:var(--blue);margin:4px 0 12px}
.pillar p{margin:0 0 16px;font-size:14.5px;line-height:1.8;color:var(--fg-dim)}
.pillar ul{margin:0 0 18px;padding:0;list-style:none;display:grid;gap:8px}
.pillar li{font-size:14px;line-height:1.55;padding-left:16px;position:relative}
.pillar li::before{content:"";position:absolute;left:0;top:.6em;width:6px;height:6px;border-radius:50%;background:var(--gold)}
.more{margin-top:auto;font-size:14.5px;font-weight:600;color:var(--gold);display:inline-flex;align-items:center;gap:6px;min-height:44px}
.more:hover{text-decoration:underline;text-underline-offset:4px}
@media(max-width:1000px){.grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:600px){.grid-4{grid-template-columns:1fr}}

/* 产品大卡（整卡可点） */
.prods{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.pcard{display:flex;flex-direction:column;overflow:hidden;transition:border-color .2s,transform .25s,box-shadow .25s}
.pcard:hover{border-color:rgba(221,182,115,.45);transform:translateY(-3px);box-shadow:0 24px 60px rgba(0,0,0,.45)}
.pcard .shot{position:relative;aspect-ratio:16/10;overflow:hidden;border-bottom:1px solid var(--line);background:var(--ink)}
.pcard .shot img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.pcard:hover .shot img{transform:scale(1.03)}
.pcard .body{padding:24px 26px 22px;display:flex;flex-direction:column;flex:1}
.pcard .top{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap}
.pcard h3{margin:0;font-family:var(--serif);font-size:26px;font-weight:700}
.pcard p{margin:10px 0 0;font-size:15px;line-height:1.8;color:var(--fg-dim)}
.pcard .for{margin-top:14px;font-size:13.5px;color:var(--fg-faint)}
.pcard .go{margin-top:18px;display:inline-flex;align-items:center;gap:8px;min-height:44px;font-weight:700;color:var(--gold)}
.pcard .go svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:2;transition:transform .2s}
.pcard:hover .go svg{transform:translateX(4px)}
.chip{font-size:13px;padding:4px 11px;border-radius:999px;border:1px solid var(--line-2);color:var(--fg-dim);white-space:nowrap;font-family:var(--mono);letter-spacing:.02em}
.chip.gold{border-color:rgba(221,182,115,.45);color:var(--gold)}
.chip.teal{border-color:rgba(116,199,174,.45);color:var(--teal)}
.side-prod{margin-top:20px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px 24px;padding:20px 24px}
.side-prod b{font-size:17px}
.side-prod span{color:var(--fg-dim);font-size:14.5px}
@media(max-width:820px){.prods{grid-template-columns:1fr}}

.promise{margin-top:20px;display:flex;flex-wrap:wrap;gap:10px 30px;padding:18px 22px;border:1px dashed var(--line-2);border-radius:var(--r);font-size:14.5px}
.promise span{display:inline-flex;align-items:center;gap:10px}
.promise i{width:8px;height:8px;border-radius:50%;background:var(--teal);box-shadow:0 0 8px var(--teal);flex:none}

/* 流程 */
.flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:rgba(11,24,40,.6)}
.flow>div{padding:26px 22px;border-right:1px solid var(--line)}
.flow>div:last-child{border-right:0}
.flow .no{font-family:var(--serif);font-size:30px;color:var(--gold);line-height:1}
.flow h4{margin:14px 0 6px;font-size:16.5px;font-weight:700}
.flow p{margin:0;font-size:14px;line-height:1.75;color:var(--fg-dim)}
@media(max-width:860px){.flow{grid-template-columns:repeat(2,minmax(0,1fr))}.flow>div:nth-child(2){border-right:0}.flow>div:nth-child(-n+2){border-bottom:1px solid var(--line)}}
@media(max-width:520px){.flow{grid-template-columns:1fr}.flow>div{border-right:0;border-bottom:1px solid var(--line)}.flow>div:last-child{border-bottom:0}}

/* 行业 */
.inds{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:12px}
.ind{padding:22px 16px}
.ind svg{width:26px;height:26px;stroke:var(--blue);fill:none;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.ind b{display:block;margin-top:16px;font-size:17px;font-weight:700}
.ind span{display:block;margin-top:4px;font-size:13px;color:var(--fg-faint);font-family:var(--mono)}
@media(max-width:960px){.inds{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:480px){.inds{grid-template-columns:repeat(2,minmax(0,1fr))}}

.voice{margin:48px 0 0;display:grid;grid-template-columns:auto 1fr;gap:24px;align-items:start;padding:34px clamp(20px,4vw,44px)}
.voice .q{font-family:var(--serif);font-size:72px;line-height:.8;color:var(--gold)}
.voice blockquote{margin:0;font-family:var(--serif);font-size:clamp(19px,2.3vw,24px);line-height:1.7}
.voice cite{display:block;margin-top:14px;font-style:normal;font-size:14px;color:var(--fg-dim)}
@media(max-width:560px){.voice{grid-template-columns:1fr;gap:6px}}

/* 社群 */
.comm{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:48px;align-items:start}
.comm-list{display:grid;gap:12px}
.row{display:grid;grid-template-columns:48px minmax(0,1fr);gap:16px;padding:20px}
.row .n{width:48px;height:48px;border-radius:14px;background:var(--gold-soft);display:grid;place-items:center;font-family:var(--serif);font-size:18px;color:var(--gold)}
.row h4{margin:2px 0 4px;font-size:16.5px;font-weight:700}
.row p{margin:0;font-size:14.5px;line-height:1.75;color:var(--fg-dim)}
.row a.inl{color:var(--gold);font-weight:600;display:inline-flex;align-items:center;min-height:44px;margin:-12px 0}
@media(max-width:860px){.comm{grid-template-columns:1fr;gap:24px}}

/* 加入 */
.join{position:relative;overflow:hidden;isolation:isolate;border-radius:24px;border:1px solid rgba(221,182,115,.3);padding:clamp(34px,6vw,68px)}
.join::before{content:"";position:absolute;inset:0;z-index:-1;background:url(/assets/galaxy.jpg) 50% 60%/cover;opacity:.55}
.join::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(100deg,rgba(5,12,22,.95) 30%,rgba(5,12,22,.55))}
.join h2{font-family:var(--serif);font-size:clamp(30px,4.6vw,52px);line-height:1.15;font-weight:700;margin:12px 0 0;max-width:15em}
.join p{margin:16px 0 0;color:var(--fg-dim);font-size:16.5px;line-height:1.85;max-width:34em}

/* 产品页 */
.crumb{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--fg-dim);min-height:44px;margin-bottom:10px}
.crumb:hover{color:var(--fg)}
.feature{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.25fr);gap:clamp(28px,5vw,64px);align-items:center}
.feature+.feature{margin-top:clamp(56px,8vw,96px)}
.feature.flip .txt{order:2}
.feature h3{font-family:var(--serif);font-size:clamp(24px,3vw,32px);line-height:1.3;margin:10px 0 12px;font-weight:700}
.feature p{margin:0;color:var(--fg-dim);font-size:16px;line-height:1.9}
.feature .fig{overflow:hidden;border-radius:var(--r);border:1px solid var(--line-2);box-shadow:0 30px 80px rgba(0,0,0,.5)}
.feature figcaption{padding:12px 16px;font-size:13px;color:var(--fg-faint);background:rgba(11,24,40,.9);border-top:1px solid var(--line)}
.feature .step{font-family:var(--mono);font-size:13px;letter-spacing:.14em;color:var(--gold)}
@media(max-width:860px){.feature{grid-template-columns:1fr}.feature.flip .txt{order:0}}

.pipe{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:28px}
.pipe span{padding:10px 16px;border-radius:999px;border:1px solid var(--line-2);background:rgba(11,24,40,.7);font-size:14.5px}
.pipe i{color:var(--gold);font-style:normal}

.tbl{width:100%;border-collapse:separate;border-spacing:0;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:rgba(11,24,40,.6)}
.tbl th,.tbl td{padding:16px 18px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line);font-size:15px;line-height:1.7}
.tbl tr:last-child th,.tbl tr:last-child td{border-bottom:0}
.tbl thead th{font-family:var(--serif);font-size:18px;color:var(--fg);background:rgba(16,33,58,.6)}
.tbl tbody th{color:var(--fg-faint);font-weight:500;font-size:14px;width:22%}
.tbl td{color:var(--fg-dim)}
@media(max-width:640px){
  .tbl thead{display:none}
  .tbl,.tbl tbody,.tbl tr,.tbl th,.tbl td{display:block;width:auto}
  .tbl tr{padding:6px 0;border-bottom:1px solid var(--line)}
  .tbl tbody th{padding:12px 18px 2px;border:0}
  .tbl td{padding:4px 18px;border:0}
  .tbl td::before{content:attr(data-h)"：";color:var(--gold);font-weight:600}
}

.caps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.cap{padding:24px}
.cap .ic{width:42px;height:42px;border-radius:12px;background:rgba(116,199,174,.12);display:grid;place-items:center;margin-bottom:16px}
.cap .ic svg{width:22px;height:22px;stroke:var(--teal);fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.cap h4{margin:0 0 6px;font-size:17.5px;font-weight:700}
.cap p{margin:0;font-size:14.5px;line-height:1.8;color:var(--fg-dim)}
@media(max-width:900px){.caps{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:560px){.caps{grid-template-columns:1fr}}

.list-dot{margin:0;padding:0;list-style:none;display:grid;gap:12px}
.list-dot li{position:relative;padding:16px 18px 16px 44px;font-size:15.5px;line-height:1.75}
.list-dot li::before{content:"";position:absolute;left:20px;top:25px;width:8px;height:8px;border-radius:50%;background:var(--gold);box-shadow:0 0 10px var(--gold)}
.note{margin-top:28px;font-size:13.5px;color:var(--fg-faint);line-height:1.8}

footer{border-top:1px solid rgba(43,64,87,.6);padding:36px 0 calc(36px + env(safe-area-inset-bottom));color:var(--fg-dim);font-size:14px}
.foot{display:flex;flex-wrap:wrap;gap:12px 28px;justify-content:space-between;align-items:center}
.foot nav{display:flex;flex-wrap:wrap;gap:4px 18px}
.foot a{min-height:44px;min-width:44px;padding:0 6px;justify-content:center;display:inline-flex;align-items:center}
.foot a:hover{color:var(--fg)}
@media (pointer:coarse){header.top nav a{min-height:44px;display:inline-flex;align-items:center}}

/* 进场：脚本自己加 reveal-on 才隐藏，脚本没跑=全部可见 */
@media (prefers-reduced-motion:no-preference){
  .reveal-on .rv{opacity:0;transform:translateY(16px);transition:opacity .7s ease,transform .7s ease}
  .reveal-on .rv.in{opacity:1;transform:none}
}