/* ============================================================
   白泽管理咨询 · 官网样式
   深蓝星空 / 彩色渐变字 / 动态交互
   纯 CSS，无外部依赖
   ============================================================ */

:root{
  --bg-deep:#04091a;
  --bg:#050b1e;
  --bg-soft:#081026;
  --ink:#eaf1ff;
  --ink-2:#b9c6e4;
  --ink-3:#8293b6;
  --cyan:#5ee7ff;
  --blue:#4d8bff;
  --violet:#8b7cff;
  --pink:#ff7bc6;
  --gold:#ffc46b;
  --mint:#4ee6b8;
  --line:rgba(120,160,255,.14);
  --line-2:rgba(120,160,255,.26);
  --glass:rgba(12,24,52,.55);
  --glass-2:rgba(10,20,44,.72);
  --radius:18px;
  --shadow:0 18px 50px -22px rgba(0,0,0,.9);
  --ease:cubic-bezier(.22,.68,.24,1);
  --font:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}

*,*::before,*::after{box-sizing:border-box}

html{scroll-behavior:smooth; -webkit-text-size-adjust:100%}

body{
  margin:0;
  font-family:var(--font);
  color:var(--ink);
  background:var(--bg-deep);
  line-height:1.75;
  font-size:16px;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}

img,svg{display:block; max-width:100%}
a{color:inherit; text-decoration:none}
ul,ol,dl{margin:0; padding:0; list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font-family:inherit; cursor:pointer; border:0; background:none; color:inherit}

::selection{background:rgba(94,231,255,.28); color:#fff}

/* ---------- 星空背景 ---------- */
.sky{position:fixed; inset:0; z-index:-2; overflow:hidden; background:
  radial-gradient(120% 90% at 50% -10%, #0d1b45 0%, #071131 38%, #04091a 78%, #02040d 100%);}

#starfield{position:absolute; inset:0; width:100%; height:100%; display:block}

.nebula{position:absolute; border-radius:50%; filter:blur(70px); opacity:.5; pointer-events:none; mix-blend-mode:screen}
.nebula-1{width:52vw; height:52vw; left:-12vw; top:-14vw;
  background:radial-gradient(circle at 40% 40%, rgba(77,139,255,.55), rgba(77,139,255,0) 68%);
  animation:drift1 26s var(--ease) infinite alternate}
.nebula-2{width:46vw; height:46vw; right:-10vw; top:8vh;
  background:radial-gradient(circle at 60% 40%, rgba(139,124,255,.5), rgba(139,124,255,0) 68%);
  animation:drift2 32s var(--ease) infinite alternate}
.nebula-3{width:60vw; height:44vw; left:22vw; bottom:-22vw;
  background:radial-gradient(circle at 50% 60%, rgba(255,123,198,.32), rgba(255,123,198,0) 70%);
  animation:drift3 38s var(--ease) infinite alternate}

@keyframes drift1{to{transform:translate3d(6vw,4vh,0) scale(1.12)}}
@keyframes drift2{to{transform:translate3d(-5vw,6vh,0) scale(1.08)}}
@keyframes drift3{to{transform:translate3d(4vw,-4vh,0) scale(1.16)}}

.grid-glow{
  position:absolute; inset:0; pointer-events:none; opacity:.22;
  background-image:linear-gradient(rgba(120,160,255,.16) 1px, transparent 1px),
                   linear-gradient(90deg, rgba(120,160,255,.16) 1px, transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 70% 60% at 50% 30%, #000 0%, transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 70% 60% at 50% 30%, #000 0%, transparent 78%);
}

.cursor-glow{
  position:fixed; width:520px; height:520px; border-radius:50%; pointer-events:none; z-index:-1;
  background:radial-gradient(circle, rgba(94,231,255,.10), rgba(139,124,255,.06) 42%, transparent 68%);
  transform:translate(-50%,-50%); transition:opacity .4s ease; opacity:.9;
  left:50%; top:30%; filter:blur(10px);
}

/* ---------- 排版工具 ---------- */
.grad-text{
  background:linear-gradient(100deg,#5ee7ff 0%,#7ea9ff 34%,#b58cff 62%,#ff7bc6 100%);
  background-size:220% 100%;
  -webkit-background-clip:text; background-clip:text; color:transparent;
  animation:gradFlow 9s linear infinite;
}
.grad-text-2{
  background:linear-gradient(100deg,#ffc46b,#ff8fb8 40%,#8b7cff 78%,#5ee7ff);
  background-size:220% 100%;
  -webkit-background-clip:text; background-clip:text; color:transparent;
  animation:gradFlow 12s linear infinite;
}
.grad-text-3{
  background:linear-gradient(100deg,#8ff4ff,#c3b6ff 50%,#ffb0dd);
  background-size:220% 100%;
  -webkit-background-clip:text; background-clip:text; color:transparent;
  animation:gradFlow 10s linear infinite;
}
@keyframes gradFlow{to{background-position:220% 0}}

.wrap{width:min(1180px,92vw); margin-inline:auto}
.pc-only{display:inline}

/* ---------- 导航 ---------- */
.nav{position:fixed; inset:0 0 auto 0; z-index:80; transition:background .35s ease, backdrop-filter .35s ease, border-color .35s ease; border-bottom:1px solid transparent}
.nav.is-stuck{background:rgba(4,9,26,.78); backdrop-filter:blur(18px) saturate(140%); border-bottom-color:var(--line)}

.nav-inner{width:min(1240px,94vw); margin-inline:auto; display:flex; align-items:center; justify-content:space-between; height:72px; gap:18px}

.brand{display:flex; align-items:center; gap:10px; flex:0 0 auto}
.brand-mark{display:grid; place-items:center; filter:drop-shadow(0 0 12px rgba(94,231,255,.45))}
.brand-mark svg{animation:spinSlow 26s linear infinite}
@keyframes spinSlow{to{transform:rotate(360deg)}}
.brand-text{display:flex; flex-direction:column; line-height:1.15}
.brand-text strong{font-size:16px; letter-spacing:.06em}
.brand-text em{font-style:normal; font-size:9.5px; letter-spacing:.24em; color:var(--ink-3)}

.nav-links{display:flex; align-items:center; gap:4px}
.nav-links a{
  position:relative; padding:8px 11px; font-size:13.5px; color:var(--ink-2); border-radius:9px;
  transition:color .25s ease, background .25s ease;
}
.nav-links a:not(.nav-cta)::after{
  content:""; position:absolute; left:11px; right:11px; bottom:4px; height:1px;
  background:linear-gradient(90deg,var(--cyan),var(--pink)); transform:scaleX(0); transform-origin:left;
  transition:transform .3s var(--ease);
}
.nav-links a:hover{color:#fff}
.nav-links a:not(.nav-cta):hover::after{transform:scaleX(1)}
.nav-links a.is-current{color:#fff}
.nav-links a.is-current::after{transform:scaleX(1)}

.nav-cta{
  margin-left:8px; padding:9px 16px !important; border-radius:999px; color:#04101f !important; font-weight:600;
  background:linear-gradient(100deg,#7ff0ff,#9db4ff 50%,#ffa8d8);
  box-shadow:0 6px 22px -8px rgba(94,231,255,.7);
  transition:transform .25s var(--ease), box-shadow .25s ease;
}
.nav-cta:hover{transform:translateY(-1px); box-shadow:0 10px 28px -8px rgba(94,231,255,.85)}

.nav-progress{height:2px; width:0; background:linear-gradient(90deg,var(--cyan),var(--violet),var(--pink)); box-shadow:0 0 12px rgba(94,231,255,.8)}

.burger{display:none; width:42px; height:42px; border-radius:11px; border:1px solid var(--line-2); flex-direction:column; gap:5px; align-items:center; justify-content:center}
.burger span{display:block; width:18px; height:1.6px; background:var(--ink); border-radius:2px; transition:transform .3s var(--ease), opacity .2s ease}
.burger.is-open span:nth-child(1){transform:translateY(6.6px) rotate(45deg)}
.burger.is-open span:nth-child(2){opacity:0}
.burger.is-open span:nth-child(3){transform:translateY(-6.6px) rotate(-45deg)}

/* ---------- 通用区块 ---------- */
.section{position:relative; padding:110px 0; scroll-margin-top:78px}
.section-cost{padding-top:20px}
.section::before{
  content:""; position:absolute; inset:auto 0 0 0; height:1px;
  background:linear-gradient(90deg,transparent,rgba(120,160,255,.22),transparent);
}

.sec-head{max-width:860px; margin-bottom:52px}
.sec-kicker{
  display:inline-flex; align-items:center; gap:8px; font-size:12px; letter-spacing:.22em; color:var(--cyan);
  margin-bottom:16px; text-transform:uppercase; opacity:.9;
}
.sec-kicker::before{content:""; width:22px; height:1px; background:linear-gradient(90deg,var(--cyan),transparent)}
.sec-title{font-size:clamp(26px,3.4vw,44px); line-height:1.28; letter-spacing:.01em; font-weight:700}
.sec-sub{margin-top:16px; color:var(--ink-2); font-size:15.5px; line-height:1.85; max-width:760px}

.glass{
  background:linear-gradient(160deg, rgba(16,30,64,.72), rgba(8,16,38,.62));
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  backdrop-filter:blur(14px) saturate(130%);
  position:relative; overflow:hidden;
}
.glass::before{
  content:""; position:absolute; inset:0 0 auto 0; height:1px;
  background:linear-gradient(90deg,transparent,rgba(94,231,255,.55),rgba(139,124,255,.35),transparent);
  opacity:.7;
}

.micro-note{margin-top:22px; font-size:13px; color:var(--ink-3); letter-spacing:.02em}
.big-quote{font-size:clamp(19px,2.2vw,27px); font-weight:600; letter-spacing:.02em; line-height:1.5}
.big-quote.center{text-align:center; margin-top:56px; color:#fff}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:9px;
  padding:13px 24px; border-radius:999px; font-size:14.5px; font-weight:600; letter-spacing:.02em;
  transition:transform .28s var(--ease), box-shadow .28s ease, background .28s ease, border-color .28s ease;
  position:relative; overflow:hidden;
}
.btn svg{transition:transform .28s var(--ease)}
.btn-primary{
  color:#04101f;
  background:linear-gradient(100deg,#7ff0ff,#9db4ff 52%,#ffa8d8);
  box-shadow:0 12px 34px -14px rgba(94,231,255,.9);
}
.btn-primary::after{
  content:""; position:absolute; inset:0; background:linear-gradient(100deg,transparent 20%,rgba(255,255,255,.65) 50%,transparent 80%);
  transform:translateX(-120%);
}
.btn-primary:hover{transform:translateY(-2px); box-shadow:0 18px 42px -14px rgba(94,231,255,1)}
.btn-primary:hover::after{animation:sheen .9s ease}
.btn-primary:hover svg{transform:translateX(4px)}
@keyframes sheen{to{transform:translateX(120%)}}
.btn-ghost{
  color:var(--ink); border:1px solid var(--line-2); background:rgba(255,255,255,.02);
}
.btn-ghost:hover{border-color:rgba(94,231,255,.55); box-shadow:0 0 0 4px rgba(94,231,255,.07), 0 10px 30px -18px #5ee7ff; transform:translateY(-2px)}
.btn.full{width:100%; margin-top:18px}

/* ---------- HERO ---------- */
.hero{position:relative; min-height:100vh; display:grid; align-items:center; padding:130px 0 90px; overflow:hidden}
.hero-inner{position:relative; z-index:2}
.badge{
  display:inline-block; padding:7px 15px; border-radius:999px; font-size:12.5px; letter-spacing:.1em; color:#bfe9ff;
  border:1px solid rgba(94,231,255,.32); background:rgba(94,231,255,.07);
  box-shadow:0 0 26px -10px rgba(94,231,255,.7) inset;
}
.hero-title{margin-top:26px; display:flex; flex-direction:column; gap:2px}
.hero-title .line-1{font-size:clamp(40px,7vw,86px); font-weight:800; letter-spacing:.04em; line-height:1.06;
  background:linear-gradient(96deg,#ffffff 0%,#a8e8ff 26%,#c9b8ff 54%,#ffc7e4 78%,#ffffff 100%);
  background-size:220% 100%; -webkit-background-clip:text; background-clip:text; color:transparent;
  animation:gradFlow 16s linear infinite;
  filter:drop-shadow(0 0 26px rgba(94,231,255,.18))}
.hero-title .line-2{font-size:clamp(13px,1.7vw,20px); letter-spacing:.42em; font-weight:500}

.hero-slogan{margin-top:22px; font-size:clamp(24px,3.6vw,42px); font-weight:700; letter-spacing:.06em}
.hero-quote{margin-top:18px; color:var(--ink-2); font-size:clamp(14px,1.5vw,17px); max-width:720px; line-height:1.9}

.hero-actions{display:flex; flex-wrap:wrap; gap:14px; margin-top:34px}

.hero-stats{display:flex; flex-wrap:wrap; gap:38px; margin-top:56px; padding-top:26px; border-top:1px solid var(--line)}
.hero-stats li{display:flex; flex-direction:column; gap:2px}
.hero-stats b{font-size:clamp(20px,2.4vw,27px); font-weight:700; letter-spacing:.03em}
.hero-stats span{font-size:12.5px; color:var(--ink-3); letter-spacing:.06em}

.scroll-hint{
  position:absolute; left:50%; bottom:30px; transform:translateX(-50%);
  width:26px; height:42px; border:1px solid rgba(150,190,255,.35); border-radius:14px;
  display:grid; place-items:center; z-index:3;
}
.scroll-hint span{width:3px; height:8px; border-radius:2px; background:linear-gradient(#8ff4ff,transparent); animation:scrolldot 1.8s ease-in-out infinite}
@keyframes scrolldot{0%{transform:translateY(-6px); opacity:0}35%{opacity:1}100%{transform:translateY(9px); opacity:0}}

/* ---------- 两个变量 ---------- */
.two-vars{display:grid; grid-template-columns:1fr 1fr; gap:22px}
.card-var{padding:32px 30px 34px}
.var-head{display:flex; align-items:center; gap:14px; margin-bottom:14px}
.var-head .num{
  font-size:13px; font-weight:700; letter-spacing:.1em; color:#8ff4ff; padding:3px 9px; border-radius:7px;
  border:1px solid rgba(94,231,255,.35); background:rgba(94,231,255,.08);
}
.var-head h3{font-size:20px; font-weight:600; letter-spacing:.02em}
.card-var p{color:var(--ink-2); font-size:14.8px; line-height:1.9}
.scan-line{
  position:absolute; left:0; right:0; top:0; height:1px;
  background:linear-gradient(90deg,transparent,rgba(94,231,255,.9),transparent);
  animation:scan 5.5s linear infinite; opacity:.65;
}
@keyframes scan{0%{transform:translateY(0); opacity:0}10%{opacity:.7}90%{opacity:.5}100%{transform:translateY(240px); opacity:0}}

/* ---------- 三重撕裂 ---------- */
.split-title{display:flex; align-items:baseline; gap:20px; flex-wrap:wrap; margin:64px 0 26px}
.split-title h3{font-size:clamp(20px,2.4vw,28px); font-weight:700}
.split-title p{font-size:13.5px; color:var(--ink-3); letter-spacing:.06em}

.tear-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:20px}
.tear{
  padding:28px 26px; border-radius:var(--radius); border:1px solid var(--line);
  background:linear-gradient(175deg, rgba(14,26,56,.6), rgba(6,12,30,.4));
  transition:transform .35s var(--ease), border-color .35s ease, box-shadow .35s ease;
  position:relative;
}
.tear:hover{transform:translateY(-6px); border-color:rgba(94,231,255,.4); box-shadow:0 24px 50px -28px rgba(94,231,255,.6)}
.tear-icon{color:#7fd8ff; margin-bottom:16px; opacity:.9}
.tear h4{font-size:17.5px; font-weight:600; margin-bottom:10px}
.tear p{font-size:14px; color:var(--ink-2); line-height:1.85}
.tear strong{color:#cfe6ff; font-weight:600}

.highlight-band{
  margin-top:34px; padding:30px 34px; border-radius:var(--radius);
  border:1px solid var(--line-2);
  background:
    radial-gradient(120% 140% at 0% 0%, rgba(94,231,255,.1), transparent 55%),
    radial-gradient(120% 140% at 100% 100%, rgba(255,123,198,.1), transparent 55%),
    rgba(8,16,38,.55);
}
.highlight-band p{font-size:clamp(15px,1.7vw,18.5px); color:var(--ink-2); line-height:1.9}
.highlight-band em{font-style:normal; color:#fff; font-weight:600; background:linear-gradient(transparent 62%, rgba(94,231,255,.28) 62%)}
.band-strong{margin-top:12px; color:#fff !important; font-weight:700; letter-spacing:.03em}

/* ---------- 成本 ---------- */
.cost-grid{display:grid; grid-template-columns:repeat(3,1fr); gap:20px}
.cost-card{
  position:relative; padding:34px 26px 28px; border-radius:var(--radius);
  border:1px solid rgba(255,150,150,.14);
  background:linear-gradient(175deg, rgba(40,16,34,.5), rgba(8,12,28,.55));
  transition:transform .35s var(--ease), border-color .35s ease;
}
.cost-card:hover{transform:translateY(-5px); border-color:rgba(255,140,170,.4)}
.cost-no{
  font-size:44px; font-weight:800; line-height:1;
  background:linear-gradient(160deg,#ff9d6b,#ff5f9e 60%,#8b7cff);
  -webkit-background-clip:text; background-clip:text; color:transparent; opacity:.85;
}
.cost-card h3{margin-top:12px; font-size:17px; font-weight:600}
.cost-card p{margin-top:10px; font-size:14px; color:var(--ink-2); line-height:1.85}
.cost-quote{
  margin-top:46px; text-align:center; font-size:clamp(19px,2.3vw,28px); font-weight:700; letter-spacing:.04em;
  color:#fff;
}
.cost-quote::before,.cost-quote::after{content:"「"; color:var(--pink); opacity:.6; margin:0 6px}
.cost-quote::after{content:"」"}

/* ---------- 关于 ---------- */
.about-grid{display:grid; grid-template-columns:1.15fr 1fr; gap:22px; align-items:start}
.about-myth{padding:36px 32px}
.myth-title{font-size:15px; letter-spacing:.18em; color:var(--cyan); margin-bottom:16px}
.about-myth p{color:var(--ink-2); font-size:15px; line-height:1.95; margin-bottom:12px}
.about-myth p:first-of-type{color:#e8f2ff; font-size:16px}
.about-claim{
  margin-top:20px !important; padding-left:14px; border-left:2px solid;
  border-image:linear-gradient(180deg,var(--cyan),var(--pink)) 1;
  color:#fff !important; font-weight:600;
}
.about-facts{display:grid; gap:14px}
.fact{padding:22px 24px; transition:transform .3s var(--ease), border-color .3s ease}
.fact:hover{transform:translateX(4px); border-color:rgba(139,124,255,.42)}
.fact h4{font-size:14px; letter-spacing:.1em; color:#a9c6ff; margin-bottom:7px}
.fact p{font-size:14.2px; color:var(--ink-2); line-height:1.8}

.mvv{display:grid; grid-template-columns:1fr 1fr 1fr; gap:18px; margin-top:24px}
.mvv-item{padding:24px 24px; border-radius:14px; border:1px solid var(--line); background:rgba(255,255,255,.015)}
.mvv-label{display:block; font-size:12px; letter-spacing:.22em; color:var(--cyan); margin-bottom:10px}
.mvv-item p{font-size:14.5px; color:#dbe7ff; line-height:1.8}
.values{display:flex; gap:12px}
.values b{
  font-size:15px; font-weight:600; padding:3px 12px; border-radius:999px;
  border:1px solid rgba(139,124,255,.4); background:rgba(139,124,255,.1); color:#dcd4ff;
}

/* ---------- 四维模型 ---------- */
.section-model{overflow:hidden}
.model-stage{display:grid; grid-template-columns:1.05fr .95fr; gap:44px; align-items:center}

.model-graph{position:relative; aspect-ratio:1/1; width:100%; max-width:520px; margin-inline:auto}
.orbit{width:100%; height:100%}
.ring-spin{transform-origin:210px 210px; animation:ringSpin 34s linear infinite}
@keyframes ringSpin{to{transform:rotate(360deg)}}
.orbit-core{fill:#ffffff; font-size:15px; font-weight:700; letter-spacing:.16em}
.orbit-core-sub{fill:#8fb8e8; font-size:10.5px; letter-spacing:.08em}

.node{
  position:absolute; transform:translate(-50%,-50%);
  display:flex; flex-direction:column; align-items:center; gap:2px;
  padding:14px 20px 12px; border-radius:16px;
  border:1px solid rgba(120,160,255,.24);
  background:rgba(9,18,40,.84); backdrop-filter:blur(8px);
  transition:transform .35s var(--ease), border-color .3s ease, box-shadow .35s ease, background .3s ease;
}
.node b{font-size:17px; letter-spacing:.08em; color:#e7f1ff}
.node em{font-style:normal; font-size:11.5px; letter-spacing:.1em; color:var(--ink-3)}
.node-dot{width:7px; height:7px; border-radius:50%; background:#5ee7ff; box-shadow:0 0 12px 2px rgba(94,231,255,.8); margin-bottom:4px}
.node:hover{transform:translate(-50%,-50%) scale(1.06); border-color:rgba(94,231,255,.55)}
.node.is-active{border-color:rgba(94,231,255,.8); box-shadow:0 0 0 1px rgba(94,231,255,.3), 0 18px 44px -22px rgba(94,231,255,.9); background:rgba(14,30,62,.95)}
.node.is-active b{background:linear-gradient(100deg,#8ff4ff,#c3b6ff); -webkit-background-clip:text; background-clip:text; color:transparent}

.node-strategy{left:50%; top:6%}
.node-org{left:92%; top:50%}
.node-talent{left:50%; top:94%}
.node-incentive{left:8%; top:50%}
.node-org .node-dot{background:#8b7cff; box-shadow:0 0 12px 2px rgba(139,124,255,.8)}
.node-talent .node-dot{background:#4ee6b8; box-shadow:0 0 12px 2px rgba(78,230,184,.8)}
.node-incentive .node-dot{background:#ffc46b; box-shadow:0 0 12px 2px rgba(255,196,107,.8)}

.model-panel{padding:38px 34px; min-height:290px; display:grid}
.dim-view{grid-area:1/1; opacity:0; transform:translateY(12px); transition:opacity .4s ease, transform .4s var(--ease); pointer-events:none}
.dim-view.is-active{opacity:1; transform:none; pointer-events:auto}
.dim-tag{font-size:12px; letter-spacing:.22em; color:var(--cyan); margin-bottom:12px}
.dim-view h3{font-size:clamp(28px,3.4vw,40px); font-weight:800; letter-spacing:.06em;
  background:linear-gradient(100deg,#fff,#b9d4ff 60%,#ffc7e8); background-size:200% 100%;
  -webkit-background-clip:text; background-clip:text; color:transparent; animation:gradFlow 11s linear infinite}
.dim-q{margin-top:10px; font-size:17px; color:#cfe0ff; font-weight:600; letter-spacing:.03em}
.dim-desc{margin-top:14px; font-size:14.5px; color:var(--ink-2); line-height:1.9}

.model-foot{margin-top:52px; display:grid; gap:16px; justify-items:center; text-align:center}
.model-foot p{color:var(--ink-2); font-size:15px; max-width:860px}
.model-foot strong{color:#fff}

/* ---------- 服务 Tab ---------- */
.tabs{position:relative; display:flex; flex-wrap:wrap; gap:8px; padding:7px; border-radius:16px; border:1px solid var(--line); background:rgba(8,16,38,.5); width:fit-content; max-width:100%}
.tab{
  position:relative; z-index:2; padding:11px 18px; border-radius:11px; font-size:13.8px; color:var(--ink-2);
  transition:color .3s ease; white-space:nowrap;
}
.tab:hover{color:#fff}
.tab.is-active{color:#04101f; font-weight:700}
.tab-ink{
  position:absolute; z-index:1; top:7px; bottom:7px; border-radius:11px;
  background:linear-gradient(100deg,#7ff0ff,#a8b6ff 55%,#ffb1dd);
  box-shadow:0 8px 26px -12px rgba(94,231,255,.95);
  transition:left .4s var(--ease), width .4s var(--ease);
}

.tab-panels{margin-top:22px; padding:44px 40px; position:relative}
.panel{display:none; grid-template-columns:1fr auto; gap:40px; align-items:center; animation:panelIn .5s var(--ease)}
.panel.is-active{display:grid}
@keyframes panelIn{from{opacity:0; transform:translateY(10px)}to{opacity:1; transform:none}}

.panel-kicker{font-size:12.5px; letter-spacing:.16em; color:var(--cyan); margin-bottom:14px}
.panel-claim{font-size:clamp(26px,3.4vw,42px); font-weight:800; letter-spacing:.03em; line-height:1.24; color:#fff}
.panel-pain{margin-top:18px; font-size:14.6px; color:var(--ink-2); line-height:1.9; max-width:640px}
.panel-pain b{color:#9fd4ff; font-weight:600}

.panel-meta{display:grid; gap:12px; min-width:210px}
.panel-meta li{
  display:flex; align-items:center; justify-content:space-between; gap:18px;
  padding:14px 18px; border-radius:12px; border:1px solid var(--line);
  background:rgba(255,255,255,.025);
}
.panel-meta span{font-size:12.5px; letter-spacing:.14em; color:var(--ink-3)}
.panel-meta b{font-size:17px; font-weight:700;
  background:linear-gradient(100deg,#8ff4ff,#ffc7e8); -webkit-background-clip:text; background-clip:text; color:transparent}

/* ---------- 选型引导 ---------- */
.selector-box{padding:40px 38px}
.selector-q{font-size:13px; letter-spacing:.16em; color:var(--ink-3); margin-bottom:18px}
.selector-options{display:flex; flex-wrap:wrap; gap:10px}
.opt{
  padding:12px 20px; border-radius:999px; font-size:14px; color:var(--ink-2);
  border:1px solid var(--line-2); background:rgba(255,255,255,.02);
  transition:all .28s var(--ease);
}
.opt:hover{border-color:rgba(94,231,255,.5); color:#fff; transform:translateY(-2px)}
.opt.is-active{
  color:#04101f; font-weight:700; border-color:transparent;
  background:linear-gradient(100deg,#7ff0ff,#a9b6ff 55%,#ffb1dd);
  box-shadow:0 14px 34px -16px rgba(94,231,255,.95);
}

.selector-result{margin-top:26px; border-top:1px dashed var(--line-2); padding-top:26px; min-height:104px}
.result-inner{display:flex; align-items:center; gap:26px; flex-wrap:wrap; animation:panelIn .45s var(--ease)}
.result-hint{color:var(--ink-3); font-size:14px}
.result-service{display:flex; flex-direction:column; gap:4px}
.result-service .rs-label{font-size:11.5px; letter-spacing:.2em; color:var(--ink-3)}
.result-service .rs-name{font-size:clamp(20px,2.4vw,28px); font-weight:800; letter-spacing:.04em;
  background:linear-gradient(100deg,#8ff4ff,#c3b6ff 50%,#ffb0dd); background-size:200% 100%;
  -webkit-background-clip:text; background-clip:text; color:transparent; animation:gradFlow 9s linear infinite}
.result-cycle{margin-left:auto; display:flex; align-items:center; gap:12px; padding:12px 22px; border-radius:14px; border:1px solid var(--line-2); background:rgba(94,231,255,.06)}
.result-cycle span{font-size:12px; letter-spacing:.14em; color:var(--ink-3)}
.result-cycle b{font-size:20px; color:#fff; font-weight:700}
.result-desc{flex-basis:100%; color:var(--ink-2); font-size:14px; line-height:1.85}
.result-desc a{color:var(--cyan); border-bottom:1px solid rgba(94,231,255,.4)}

/* ---------- 交付能力 ---------- */
.deliver-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:18px}
.deliver{
  padding:28px 24px; border-radius:var(--radius); border:1px solid var(--line);
  background:linear-gradient(175deg, rgba(14,26,56,.6), rgba(6,12,30,.42));
  transition:transform .35s var(--ease), border-color .3s ease, box-shadow .35s ease;
}
.deliver:hover{transform:translateY(-6px); border-color:rgba(139,124,255,.5); box-shadow:0 24px 48px -30px rgba(139,124,255,.9)}
.d-num{font-size:12px; letter-spacing:.2em; color:var(--violet)}
.deliver h3{margin-top:10px; font-size:18px; font-weight:700; letter-spacing:.04em}
.deliver p{margin-top:10px; font-size:13.8px; color:var(--ink-2); line-height:1.85}
.d-tag{margin-top:14px; font-size:12.6px; color:#8ff4ff !important; padding-left:12px; position:relative}
.d-tag::before{content:""; position:absolute; left:0; top:9px; width:5px; height:5px; border-radius:50%; background:var(--cyan); box-shadow:0 0 8px 1px rgba(94,231,255,.8)}

.stage-block{margin-top:44px; padding:34px 34px 28px; border-radius:var(--radius); border:1px solid var(--line); background:rgba(8,16,38,.48)}
.stage-head h3{font-size:19px; font-weight:700}
.stage-head p{margin-top:8px; color:var(--ink-2); font-size:14px}
.stage-track{display:grid; grid-template-columns:repeat(6,1fr); gap:0; margin-top:30px; position:relative}
.stage-track::before{
  content:""; position:absolute; left:6%; right:6%; top:9px; height:1px;
  background:linear-gradient(90deg,rgba(94,231,255,.15),rgba(94,231,255,.8),rgba(139,124,255,.8),rgba(255,123,198,.2));
}
.stage-track li{position:relative; display:flex; flex-direction:column; align-items:center; gap:12px; padding-top:0}
.stage-track .dot{
  width:19px; height:19px; border-radius:50%; border:1px solid rgba(94,231,255,.7);
  background:#050b1e; position:relative; z-index:2;
  box-shadow:0 0 0 4px rgba(94,231,255,.06), 0 0 16px rgba(94,231,255,.5);
}
.stage-track li:nth-child(4) .dot{border-color:rgba(139,124,255,.8); box-shadow:0 0 0 4px rgba(139,124,255,.06),0 0 16px rgba(139,124,255,.5)}
.stage-track li:nth-child(5) .dot,.stage-track li:nth-child(6) .dot{border-color:rgba(255,123,198,.75); box-shadow:0 0 0 4px rgba(255,123,198,.06),0 0 16px rgba(255,123,198,.45)}
.stage-track b{font-size:14px; letter-spacing:.1em; color:#dbe7ff; font-weight:600}
.stage-note{margin-top:22px; font-size:12.5px; color:var(--ink-3)}

/* ---------- 坚持 ---------- */
.believe-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:18px}
.believe{
  padding:28px 24px; border-radius:14px; border:1px solid var(--line);
  background:linear-gradient(180deg, rgba(94,231,255,.05), rgba(8,16,38,.2));
  transition:transform .35s var(--ease), border-color .3s ease;
}
.believe:hover{transform:translateY(-5px); border-color:rgba(94,231,255,.45)}
.b-index{
  display:inline-block; font-size:12px; letter-spacing:.18em; color:#0a1526; font-weight:700;
  padding:2px 9px; border-radius:6px; background:linear-gradient(100deg,#8ff4ff,#c9bcff);
}
.believe h3{margin-top:14px; font-size:16.5px; font-weight:700; line-height:1.6}
.believe p{margin-top:10px; font-size:13.8px; color:var(--ink-2); line-height:1.85}

.change-block{margin-top:26px; padding:34px; display:grid; grid-template-columns:.95fr 1.05fr; gap:36px; align-items:center}
.change-text h3{font-size:21px; font-weight:700}
.change-text p{margin-top:12px; color:var(--ink-2); font-size:14.3px; line-height:1.85}
.change-list{display:grid; gap:10px}
.change-list li{display:flex; align-items:flex-start; gap:14px; padding:13px 16px; border-radius:11px; background:rgba(255,255,255,.025); border:1px solid rgba(120,160,255,.1)}
.change-list b{flex:0 0 44px; font-size:13px; color:#8ff4ff; letter-spacing:.06em; padding-top:2px}
.change-list span{font-size:13.8px; color:var(--ink-2); line-height:1.75}

/* ---------- 案例 ---------- */
.case-grid{display:grid; grid-template-columns:1fr 1fr; gap:22px}
.case-card{
  padding:34px 30px 26px; border-radius:var(--radius); border:1px solid var(--line);
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(139,124,255,.1), transparent 60%),
    linear-gradient(175deg, rgba(14,26,56,.66), rgba(6,12,30,.5));
  position:relative; overflow:hidden; transition:transform .4s var(--ease), border-color .35s ease;
}
.case-card:hover{transform:translateY(-6px); border-color:rgba(94,231,255,.4)}
.case-tag{
  display:inline-block; font-size:11.5px; letter-spacing:.2em; color:#8ff4ff;
  padding:3px 10px; border-radius:6px; border:1px solid rgba(94,231,255,.3); background:rgba(94,231,255,.07);
}
.case-card h3{margin-top:14px; font-size:19px; font-weight:700; line-height:1.5}
.case-card h3 span{color:var(--violet)}
.case-dl{margin-top:18px; display:grid; gap:10px}
.case-dl dt{font-size:11.5px; letter-spacing:.18em; color:var(--ink-3)}
.case-dl dd{font-size:14px; color:var(--ink-2); line-height:1.85}
.case-label{margin-top:24px; font-size:12px; letter-spacing:.16em; color:#ffc46b}
.case-metrics{display:grid; grid-template-columns:repeat(3,1fr); gap:12px; margin-top:14px}
.case-metrics li{display:flex; flex-direction:column; gap:4px; padding:14px 12px; border-radius:11px; background:rgba(255,255,255,.03); border:1px solid rgba(120,160,255,.1)}
.case-metrics b{font-size:clamp(19px,2.3vw,25px); font-weight:800; letter-spacing:.01em}
.case-metrics span{font-size:11.8px; color:var(--ink-3); line-height:1.5}
.case-biz{margin-top:20px; font-size:13.5px; color:#d6e4ff; line-height:1.85; padding-top:16px; border-top:1px dashed var(--line-2)}
.case-biz em{display:block; margin-top:6px; font-style:normal; font-size:11.6px; color:var(--ink-3); line-height:1.7}
.case-bar{position:absolute; left:0; right:0; bottom:0; height:2px; background:rgba(120,160,255,.1)}
.case-bar i{display:block; height:100%; width:var(--w); background:linear-gradient(90deg,#5ee7ff,#8b7cff,#ff7bc6); box-shadow:0 0 12px rgba(94,231,255,.7)}

/* ---------- 交付物 ---------- */
.dlv-grid{display:grid; grid-template-columns:repeat(4,1fr); gap:18px}
.dlv-col{padding:26px 22px; border-radius:14px; border:1px solid var(--line); background:rgba(8,16,38,.45); transition:border-color .3s ease, transform .3s var(--ease)}
.dlv-col:hover{border-color:rgba(139,124,255,.45); transform:translateY(-4px)}
.dlv-col h3{display:flex; align-items:center; gap:9px; font-size:16px; font-weight:700; padding-bottom:14px; border-bottom:1px solid var(--line); margin-bottom:14px}
.dlv-dot{width:7px; height:7px; border-radius:50%; background:var(--cyan); box-shadow:0 0 10px 2px rgba(94,231,255,.7)}
.dlv-col:nth-child(2) .dlv-dot{background:var(--violet); box-shadow:0 0 10px 2px rgba(139,124,255,.7)}
.dlv-col:nth-child(3) .dlv-dot{background:var(--mint); box-shadow:0 0 10px 2px rgba(78,230,184,.7)}
.dlv-col:nth-child(4) .dlv-dot{background:var(--gold); box-shadow:0 0 10px 2px rgba(255,196,107,.7)}
.dlv-col li{font-size:13.4px; color:var(--ink-2); line-height:1.8; padding:7px 0 7px 14px; position:relative}
.dlv-col li::before{content:""; position:absolute; left:0; top:15px; width:4px; height:4px; border-radius:50%; background:rgba(140,180,255,.55)}

/* ---------- 团队 ---------- */
.team-grid{display:grid; grid-template-columns:1fr 1fr; gap:22px}
.team-card{padding:34px 32px; transition:transform .4s var(--ease), border-color .35s ease}
.team-card:hover{transform:translateY(-6px); border-color:rgba(94,231,255,.42)}
.avatar{margin-bottom:18px}
.avatar svg{filter:drop-shadow(0 0 16px rgba(94,231,255,.35))}
.team-head h3{font-size:21px; font-weight:700; letter-spacing:.04em}
.team-head h3 span{font-size:13.5px; font-weight:500; color:var(--ink-3); letter-spacing:.1em}
.team-tags{margin-top:8px; font-size:12.5px; letter-spacing:.14em; color:#8ff4ff}
.team-claim{margin-top:16px; padding-left:14px; border-left:2px solid; border-image:linear-gradient(180deg,var(--cyan),var(--violet)) 1; font-size:15.5px; color:#fff; font-weight:600; line-height:1.75}
.team-dl{margin-top:20px; display:grid; gap:8px}
.team-dl dt{font-size:11.5px; letter-spacing:.18em; color:var(--ink-3)}
.team-dl dd{font-size:14px; color:var(--ink-2); line-height:1.9; margin-bottom:8px}
.team-extra{margin-top:10px; font-size:13.4px; color:#c9dbff; line-height:1.8}
.team-phone{
  display:inline-flex; margin-top:18px; padding:8px 16px; border-radius:999px; font-size:14px; letter-spacing:.08em;
  border:1px solid rgba(94,231,255,.35); background:rgba(94,231,255,.07); color:#8ff4ff;
  transition:background .25s ease, box-shadow .25s ease;
}
.team-phone:hover{background:rgba(94,231,255,.16); box-shadow:0 0 24px -8px rgba(94,231,255,.9)}

/* ---------- FAQ ---------- */
.faq-list{display:grid; gap:12px; max-width:900px}
.faq-item{border:1px solid var(--line); border-radius:14px; background:rgba(8,16,38,.5); overflow:hidden; transition:border-color .3s ease, background .3s ease}
.faq-item.is-open{border-color:rgba(94,231,255,.4); background:rgba(10,22,48,.72)}
.faq-q{
  width:100%; display:flex; align-items:center; justify-content:space-between; gap:18px;
  padding:20px 24px; text-align:left; font-size:15.5px; color:#e7f1ff; font-weight:600; letter-spacing:.02em;
}
.faq-q i{position:relative; flex:0 0 16px; height:16px}
.faq-q i::before,.faq-q i::after{
  content:""; position:absolute; background:#8ff4ff; border-radius:2px; transition:transform .3s var(--ease), opacity .3s ease;
}
.faq-q i::before{left:0; top:7px; width:16px; height:1.6px}
.faq-q i::after{left:7px; top:0; width:1.6px; height:16px}
.faq-item.is-open .faq-q i::after{transform:rotate(90deg); opacity:0}
.faq-a{max-height:0; overflow:hidden; transition:max-height .45s var(--ease)}
.faq-a p{padding:0 24px 22px; color:var(--ink-2); font-size:14.2px; line-height:1.9}

/* ---------- 联系 ---------- */
.section-contact{padding-bottom:130px}
.contact-card{padding:52px 48px}
.contact-card .sec-title{margin-top:6px}
.contact-cols{display:grid; grid-template-columns:1fr 1fr .9fr; gap:34px; margin-top:40px}
.contact-col h3{font-size:13px; letter-spacing:.18em; color:var(--cyan); margin-bottom:12px}
.contact-col h3 ~ h3{margin-top:22px}
.check-list{display:grid; gap:9px; margin-bottom:12px}
.check-list li{display:flex; align-items:flex-start; gap:10px; font-size:14.2px; color:#dbe7ff; line-height:1.7}
.check-list li::before{content:""; flex:0 0 6px; height:6px; margin-top:9px; border-radius:50%; background:linear-gradient(120deg,#5ee7ff,#8b7cff); box-shadow:0 0 10px rgba(94,231,255,.8)}
.contact-note{font-size:12.8px; color:var(--ink-3)}
.contact-p{font-size:14px; color:var(--ink-2); line-height:1.85}
.contact-people .person{
  display:flex; align-items:center; justify-content:space-between; gap:14px;
  padding:14px 18px; margin-bottom:10px; border-radius:12px; border:1px solid var(--line-2);
  background:rgba(94,231,255,.05); transition:background .25s ease, border-color .25s ease, transform .25s var(--ease);
}
.contact-people .person:hover{background:rgba(94,231,255,.13); border-color:rgba(94,231,255,.55); transform:translateX(3px)}
.p-name{font-size:14px; color:#e7f1ff; font-weight:600; letter-spacing:.06em}
.p-tel{font-size:15.5px; font-weight:700; letter-spacing:.06em;
  background:linear-gradient(100deg,#8ff4ff,#ffc7e8); -webkit-background-clip:text; background-clip:text; color:transparent}
.contact-principle{margin-top:36px; padding-top:22px; border-top:1px dashed var(--line-2); font-size:13px; color:var(--ink-3); letter-spacing:.02em}

/* ---------- 页脚 ---------- */
.footer{border-top:1px solid var(--line); background:linear-gradient(180deg, rgba(4,9,26,.2), rgba(2,5,14,.9)); padding:58px 0 30px; position:relative; z-index:2}
.footer-inner{display:grid; grid-template-columns:1.1fr 1.4fr; gap:44px}
.footer-brand p{margin-top:12px; font-size:13.5px; color:var(--ink-3); line-height:1.8}
.footer-values{margin-top:14px !important; font-size:13px !important; letter-spacing:.24em; color:#8ff4ff !important}
.footer-nav{display:grid; grid-template-columns:repeat(3,1fr); gap:24px}
.footer-nav h4{font-size:12px; letter-spacing:.2em; color:var(--ink-3); margin-bottom:12px; font-weight:500}
.footer-nav a{display:block; font-size:13.4px; color:var(--ink-2); padding:5px 0; transition:color .22s ease, transform .22s ease}
.footer-nav a:hover{color:#8ff4ff; transform:translateX(3px)}
.footer-bottom{display:flex; justify-content:space-between; align-items:center; gap:16px; margin-top:42px; padding-top:20px; border-top:1px solid var(--line); font-size:12.3px; color:var(--ink-3); letter-spacing:.04em; flex-wrap:wrap}

/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed; right:26px; bottom:26px; z-index:70; width:44px; height:44px; border-radius:12px;
  display:grid; place-items:center; color:#8ff4ff;
  border:1px solid rgba(94,231,255,.35); background:rgba(6,14,32,.82); backdrop-filter:blur(10px);
  opacity:0; pointer-events:none; transform:translateY(12px);
  transition:opacity .35s ease, transform .35s var(--ease), box-shadow .3s ease;
}
.to-top.is-show{opacity:1; pointer-events:auto; transform:none}
.to-top:hover{box-shadow:0 0 28px -8px rgba(94,231,255,.95); border-color:rgba(94,231,255,.7)}

/* ---------- 滚动入场 ---------- */
.reveal{opacity:0; transform:translateY(26px); transition:opacity .8s var(--ease), transform .8s var(--ease)}
.reveal.is-in{opacity:1; transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .nav-links a{padding:8px 9px; font-size:13px}
  .deliver-grid,.believe-grid,.dlv-grid{grid-template-columns:repeat(2,1fr)}
  .model-stage{gap:30px}
}

@media (max-width:980px){
  .burger{display:flex}
  .nav-links{
    position:fixed; inset:72px 0 auto 0; flex-direction:column; align-items:stretch; gap:2px;
    padding:16px 6vw 26px; background:rgba(4,9,26,.96); backdrop-filter:blur(20px);
    border-bottom:1px solid var(--line); transform:translateY(-12px); opacity:0; pointer-events:none;
    transition:opacity .3s ease, transform .3s var(--ease);
    max-height:calc(100vh - 72px); overflow-y:auto;
  }
  .nav-links.is-open{opacity:1; transform:none; pointer-events:auto}
  .nav-links a{padding:13px 8px; font-size:15px; border-bottom:1px solid rgba(120,160,255,.08)}
  .nav-cta{margin:14px 0 0; text-align:center; border-bottom:0 !important; padding:13px 8px !important}

  .hero{min-height:auto; padding:120px 0 96px}
  .two-vars,.tear-grid,.cost-grid,.case-grid,.team-grid,.about-grid,.change-block,.contact-cols{grid-template-columns:1fr}
  .model-stage{grid-template-columns:1fr; gap:26px}
  .model-graph{max-width:420px}
  .mvv{grid-template-columns:1fr}
  .panel{grid-template-columns:1fr; gap:26px}
  .panel-meta{min-width:0}
  .stage-track{grid-template-columns:repeat(3,1fr); gap:22px 0}
  .stage-track::before{display:none}
  .footer-inner{grid-template-columns:1fr; gap:34px}
  .footer-nav{grid-template-columns:repeat(3,1fr); gap:18px}
  .change-block{padding:28px 24px}
  .contact-card{padding:36px 26px}
  .tab-panels{padding:32px 24px}
  .selector-box{padding:28px 22px}
  .result-cycle{margin-left:0}
  .deliver-grid,.believe-grid,.dlv-grid{grid-template-columns:1fr 1fr}
}

@media (max-width:640px){
  .section{padding:76px 0}
  .sec-head{margin-bottom:34px}
  .hero-title .line-2{letter-spacing:.3em}
  .hero-stats{gap:22px; margin-top:40px}
  .hero-stats li{flex:1 0 40%}
  .deliver-grid,.believe-grid,.dlv-grid,.case-metrics{grid-template-columns:1fr}
  .case-metrics{gap:10px}
  .footer-nav{grid-template-columns:1fr 1fr}
  .footer-bottom{flex-direction:column; align-items:flex-start; gap:8px}
  .to-top{right:16px; bottom:16px; width:40px; height:40px}
  .tabs{gap:6px; padding:6px}
  .tab{padding:10px 12px; font-size:12.6px}
  .tab-ink{display:none}
  .tab.is-active{background:linear-gradient(100deg,#7ff0ff,#a8b6ff 55%,#ffb1dd); color:#04101f}
  .stage-track{grid-template-columns:repeat(2,1fr)}
  .node{padding:10px 14px 9px}
  .node b{font-size:15px}
  .node em{font-size:10.5px}
  .highlight-band,.stage-block{padding:24px 20px}
  .about-myth{padding:26px 22px}
  .team-card,.case-card{padding:26px 22px}
  .contact-card{padding:30px 20px}
  .pc-only{display:none}
}

/* ---------- 无障碍 / 降级 ---------- */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important; animation-iteration-count:1 !important; transition-duration:.001ms !important}
  html{scroll-behavior:auto}
  .reveal{opacity:1; transform:none}
}

:focus-visible{outline:2px solid rgba(94,231,255,.8); outline-offset:3px; border-radius:6px}

@media print{
  .sky,.cursor-glow,.nav,.to-top,.scroll-hint{display:none !important}
  body{background:#fff; color:#111}
  .reveal{opacity:1 !important; transform:none !important}
}