/* ============================================================
   v4.css — 旅觅官网 v4 公共皮肤
   与首页 index.html 的 v4 设计语言同源；子页共用。
   更新请同步 index.html 内联版本（首页仍为内联自包含）。
   ============================================================ */
:root{
  --bg:#06080f; --bg2:#0a0e1a; --bg3:#0d1322;
  --panel:rgba(14,20,34,.62);
  --panel2:rgba(18,26,44,.42);
  --line:rgba(120,160,200,.10);
  --line-2:rgba(120,160,200,.18);
  --glow:rgba(74,222,128,.22);
  --green:#4ade80; --green-2:#22c55e; --green-d:#16a34a;
  --gold:#d8b878;
  --txt:#e9eff8; --txt2:#93a4bd; --txt3:#5f728e;
  --mono:ui-monospace,"SFMono-Regular","JetBrains Mono","Cascadia Mono",Consolas,monospace;
  --sans:"Inter","HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --maxw:1240px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg); color:var(--txt);
  font-family:var(--sans); font-size:15px; line-height:1.7;
  -webkit-font-smoothing:antialiased; overflow-x:hidden;
}
/* ===== 全局底纹：网格 + 扫描 ===== */
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(120,170,220,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,170,220,.045) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(1200px 700px at 50% 0%,#000 20%,transparent 78%);
  -webkit-mask-image:radial-gradient(1200px 700px at 50% 0%,#000 20%,transparent 78%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:radial-gradient(900px 520px at 78% 8%,rgba(74,222,128,.09),transparent 62%),
             radial-gradient(760px 460px at 12% 22%,rgba(88,140,255,.08),transparent 64%);
}
.scan{
  position:fixed;left:0;right:0;height:180px;z-index:1;pointer-events:none;
  background:linear-gradient(180deg,transparent,rgba(74,222,128,.05),transparent);
  animation:scan 9s linear infinite;
}
@keyframes scan{0%{top:-200px}100%{top:110%}}

.wrap{position:relative;z-index:2;max-width:var(--maxw);margin:0 auto;padding:0 28px}

/* ===== 导航 ===== */
nav{
  position:sticky;top:0;z-index:50;
  backdrop-filter:blur(18px) saturate(150%); -webkit-backdrop-filter:blur(18px) saturate(150%);
  background:linear-gradient(180deg,rgba(6,8,15,.85),rgba(6,8,15,.5));
  border-bottom:1px solid var(--line);
}
.nav-in{max-width:var(--maxw);margin:0 auto;padding:0 28px;height:64px;display:flex;align-items:center;gap:34px}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:.02em;font-size:15.5px;white-space:nowrap;text-decoration:none;color:var(--txt)}
.logo .mark{width:24px;height:24px;display:block}
.logo small{color:var(--txt3);font-weight:400;font-size:12px;letter-spacing:.14em;font-family:var(--mono)}
.nav-links{display:flex;gap:26px;margin-left:auto;font-size:14px}
.nav-links a{color:var(--txt2);text-decoration:none;position:relative;transition:color .2s}
.nav-links a:hover{color:var(--txt)}
.nav-links a::after{content:"";position:absolute;left:0;right:100%;bottom:-6px;height:1px;background:var(--green);transition:right .25s}
.nav-links a:hover::after{right:0}
.nav-links a.active{color:var(--txt)}
.nav-links a.active::after{right:0;background:var(--gold)}
.nav-toggle{display:none;margin-left:auto;background:none;border:1px solid var(--line-2);border-radius:9px;padding:9px 10px;cursor:pointer}
.nav-toggle i{display:block;width:17px;height:1.6px;background:var(--txt);margin:4px 0;border-radius:2px}
.chip{
  font-family:var(--mono);font-size:11px;letter-spacing:.08em;color:var(--green);
  border:1px solid var(--line-2);border-radius:999px;padding:5px 11px;display:flex;align-items:center;gap:7px;
  background:rgba(74,222,128,.05);white-space:nowrap;
}
.dot{width:6px;height:6px;border-radius:50%;background:var(--green);box-shadow:0 0 9px var(--green);animation:pulse 1.8s ease-in-out infinite;flex:none}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.35;transform:scale(.72)}}

/* ===== HERO / 标题 ===== */
.hero{display:grid;grid-template-columns:1.06fr .94fr;gap:52px;align-items:center;padding:78px 0 62px;position:relative}
.hero .spot{position:absolute;inset:-40px;pointer-events:none;z-index:-1;opacity:0;transition:opacity .5s;
  background:radial-gradient(340px 340px at var(--hx,50%) var(--hy,40%),rgba(74,222,128,.08),transparent 70%)}
.hero:hover .spot{opacity:1}
.hero-solo{padding:78px 0 46px}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;font-family:var(--mono);font-size:11.5px;
  letter-spacing:.16em;color:var(--txt2);border:1px solid var(--line);border-radius:999px;
  padding:6px 14px;background:rgba(255,255,255,.02);margin-bottom:26px;
}
.eyebrow i{width:5px;height:5px;border-radius:50%;background:var(--gold);box-shadow:0 0 8px var(--gold);font-style:normal}
h1{font-size:clamp(32px,3.7vw,50px);line-height:1.16;font-weight:760;letter-spacing:-.022em}
h1 .ch{display:inline-block;opacity:0;transform:translateY(24px) rotateX(-40deg);animation:chin .78s cubic-bezier(.19,1,.22,1) forwards}
@keyframes chin{to{opacity:1;transform:none}}
h1 em{
  font-style:normal;
  background:linear-gradient(96deg,var(--green) 8%,#8ef0b6 42%,var(--gold) 96%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 0 22px rgba(74,222,128,.28));
}
.lead{color:var(--txt2);font-size:15.5px;margin:24px 0 32px;max-width:32em;line-height:1.85}
.lead b{color:var(--txt);font-weight:600}
.btns{display:flex;gap:13px;flex-wrap:wrap}
.btn{
  font-family:var(--sans);font-size:14.5px;font-weight:600;border-radius:11px;padding:13px 22px;
  cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;gap:9px;
  border:1px solid transparent;transition:transform .18s,box-shadow .22s,background .2s;
}
.btn-primary{
  background:linear-gradient(135deg,var(--green),#2f9c63);color:#04140c;
  box-shadow:0 8px 30px -8px rgba(74,222,128,.55),inset 0 1px 0 rgba(255,255,255,.3);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 38px -8px rgba(74,222,128,.68)}
.btn-ghost{background:rgba(255,255,255,.03);color:var(--txt);border-color:var(--line-2);backdrop-filter:blur(10px)}
.btn-ghost:hover{border-color:var(--green);color:var(--green);transform:translateY(-2px)}
.kbd{font-family:var(--mono);font-size:11px;opacity:.6}

/* ===== 段落标题 ===== */
.sec{margin-bottom:78px}
.sec-h{display:flex;align-items:flex-end;gap:16px;margin-bottom:30px}
.sec-h .num{font-family:var(--mono);font-size:12px;color:var(--green);letter-spacing:.14em;padding-bottom:6px}
.sec-h h2{font-size:clamp(23px,2.4vw,32px);font-weight:720;letter-spacing:-.018em;line-height:1.25}
.sec-h p{color:var(--txt2);font-size:14.5px;margin-left:auto;max-width:26em;text-align:right;padding-bottom:4px}

/* ===== 通用卡片（v4 面板语言） ===== */
.card{
  border-radius:16px;padding:24px;position:relative;overflow:hidden;
  background:linear-gradient(155deg,rgba(17,25,42,.62),rgba(9,12,22,.8));
  border:1px solid var(--line);transition:transform .25s,border-color .25s,box-shadow .3s;
  backdrop-filter:blur(14px);
}
.card:hover{transform:translateY(-3px);border-color:var(--line-2);box-shadow:0 22px 55px -28px #000,0 0 45px -28px var(--glow)}
.card::after{content:"";position:absolute;inset:0;pointer-events:none;opacity:0;transition:opacity .3s;
  background:radial-gradient(340px 180px at var(--mx,50%) var(--my,0%),rgba(74,222,128,.1),transparent 70%)}
.card:hover::after{opacity:1}
.card .k{font-family:var(--mono);font-size:10.5px;letter-spacing:.13em;color:var(--green);margin-bottom:12px;display:block}
.card h3{font-size:17.5px;font-weight:660;letter-spacing:-.01em;margin-bottom:9px;color:var(--txt)}
.card p{font-size:13.5px;color:var(--txt2);line-height:1.75}
.card .big{font-size:44px;font-weight:760;letter-spacing:-.03em;font-variant-numeric:tabular-nums;line-height:1;
  background:linear-gradient(180deg,#fff,#8fd6ae);-webkit-background-clip:text;background-clip:text;color:transparent;margin-bottom:6px}
.card .sub{font-family:var(--mono);font-size:11px;color:var(--txt3);letter-spacing:.05em}
.pillrow{display:flex;flex-wrap:wrap;gap:7px;margin-top:15px}
.pill{font-family:var(--mono);font-size:11px;color:var(--txt2);border:1px solid var(--line);border-radius:999px;padding:4px 11px;background:rgba(255,255,255,.02)}

/* ===== 数字条 ===== */
.nums{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:16px;overflow:hidden}
.nums .n{background:rgba(9,13,24,.72);padding:26px 22px;position:relative;overflow:hidden}
.nums .n::after{content:"";position:absolute;left:0;top:0;width:100%;height:1px;background:linear-gradient(90deg,transparent,var(--green),transparent);opacity:.5}
.nums .n b{display:block;font-size:34px;font-weight:750;letter-spacing:-.02em;font-variant-numeric:tabular-nums;
  background:linear-gradient(180deg,#fff,#9fd9b7);-webkit-background-clip:text;background-clip:text;color:transparent}
.nums .n b em{font-style:normal;font-size:13px;color:var(--gold);margin-left:3px;-webkit-text-fill-color:var(--gold)}
.nums .n span{font-size:12.5px;color:var(--txt3);font-family:var(--mono);letter-spacing:.06em}

/* ===== 状态标签 ===== */
.st-tag{font-family:var(--mono);font-size:11px;letter-spacing:.06em;border-radius:999px;padding:5px 13px;white-space:nowrap}
.st-tag.on{color:var(--green);border:1px solid rgba(74,222,128,.35);background:rgba(74,222,128,.06)}
.st-tag.mut{color:var(--gold);border:1px solid rgba(216,184,120,.28);background:rgba(216,184,120,.05)}
.st-tag.dim{color:var(--txt3);border:1px solid var(--line-2);background:transparent}
.live{display:inline-flex;align-items:center;gap:7px;font-family:var(--mono);font-size:11px;color:var(--green);font-weight:400;letter-spacing:.05em}
.tag{
  font-family:var(--mono);font-size:10.5px;letter-spacing:.05em;color:var(--txt2);
  border:1px solid var(--line);border-radius:6px;padding:4px 8px;background:rgba(255,255,255,.02);
}
.tag.live{color:var(--green);border-color:var(--line-2);background:rgba(74,222,128,.06)}

/* ===== CTA ===== */
.cta{
  border-radius:20px;padding:44px 36px;text-align:center;position:relative;overflow:hidden;
  background:linear-gradient(160deg,rgba(16,24,40,.72),rgba(8,11,20,.86));
  border:1px solid var(--line-2);
  box-shadow:0 34px 100px -40px rgba(0,0,0,.95),inset 0 1px 0 rgba(255,255,255,.05);
  backdrop-filter:blur(18px);
}
.cta::before{
  content:"";position:absolute;inset:0;border-radius:20px;padding:1px;pointer-events:none;
  background:linear-gradient(140deg,rgba(74,222,128,.45),transparent 40%,transparent 60%,rgba(216,184,120,.3));
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;
}
.cta h3{font-size:clamp(20px,2.2vw,27px);font-weight:720;letter-spacing:-.015em;margin-bottom:10px}
.cta p{color:var(--txt2);font-size:14px;max-width:34em;margin:0 auto 26px}

/* ===== 页脚 ===== */
footer{margin-top:78px;border-top:1px solid var(--line);background:rgba(4,6,12,.6);padding:44px 0 34px}
.f-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;gap:38px}
.f-grid h5{font-family:var(--mono);font-size:11px;letter-spacing:.14em;color:var(--txt3);margin-bottom:14px}
.f-grid a{display:block;color:var(--txt2);text-decoration:none;font-size:13.5px;padding:4px 0}
.f-grid a:hover{color:var(--green)}
.f-grid p{color:var(--txt2);font-size:13.5px;max-width:24em}
.ai-box{border:1px solid var(--line-2);border-radius:14px;padding:18px;background:rgba(74,222,128,.04)}
.ai-box p{font-size:12.5px;color:var(--txt2);margin-bottom:10px}
.ai-box a{font-family:var(--mono);font-size:12.5px;color:var(--green)}
.cr{max-width:var(--maxw);margin:34px auto 0;padding:18px 28px 0;border-top:1px solid var(--line);
  display:flex;gap:18px;color:var(--txt3);font-size:12px;font-family:var(--mono);flex-wrap:wrap}
.cr a{color:var(--txt3);text-decoration:none}
.cr a:hover{color:var(--green)}

/* ===== 入场 / 进度 / 焦点 ===== */
.rv{opacity:0;transform:translateY(26px);transition:opacity .8s cubic-bezier(.19,1,.22,1),transform .8s cubic-bezier(.19,1,.22,1)}
.rv.in{opacity:1;transform:none}
.progress{position:fixed;top:0;left:0;height:2px;width:0;z-index:60;background:linear-gradient(90deg,var(--green),var(--gold));box-shadow:0 0 10px var(--glow)}
:focus-visible{outline:2px solid var(--green);outline-offset:3px;border-radius:6px}
.btn{will-change:transform}

/* ===== 表单（partner / contact 共用） ===== */
.field{display:flex;flex-direction:column;gap:7px;margin-bottom:18px}
.field label{font-family:var(--mono);font-size:11px;letter-spacing:.1em;color:var(--txt3)}
.field input,.field textarea,.field select{
  font-family:var(--sans);font-size:14px;color:var(--txt);
  background:rgba(255,255,255,.03);border:1px solid var(--line-2);border-radius:10px;padding:12px 14px;
  outline:none;transition:border-color .2s,box-shadow .2s;width:100%;
}
.field input:focus,.field textarea:focus,.field select:focus{border-color:var(--green);box-shadow:0 0 0 3px rgba(74,222,128,.12)}
.field input::placeholder,.field textarea::placeholder{color:var(--txt3)}
.form-box{border-radius:18px;padding:30px;position:relative;overflow:hidden;
  background:linear-gradient(155deg,rgba(17,25,42,.62),rgba(9,12,22,.8));
  border:1px solid var(--line-2);backdrop-filter:blur(14px)}
.form-note{font-size:12.5px;color:var(--txt3);font-family:var(--mono)}

@media (prefers-reduced-motion:reduce){
  .scan,.dot{animation:none!important}
  html{scroll-behavior:auto}
  .rv{transition:none!important;opacity:1!important;transform:none!important}
  .ch{animation-duration:.01s!important}
}
@media (max-width:1080px){
  .hero{grid-template-columns:1fr;gap:38px;padding:52px 0 42px}
  .hero-solo{padding:52px 0 36px}
  .nums{grid-template-columns:repeat(2,1fr)}
  .f-grid{grid-template-columns:1fr}
  .sec-h p{display:none}
  .chip{display:none}
  .nav-toggle{display:block}
  .nav-links{
    display:none;position:absolute;top:64px;left:0;right:0;flex-direction:column;gap:0;
    background:rgba(6,8,15,.97);border-bottom:1px solid var(--line);padding:8px 28px 16px;
  }
  .nav-links.open{display:flex}
  .nav-links a{padding:11px 0;border-bottom:1px solid var(--line)}
  .nav-links a::after{display:none}
}