/* ==========================================================================
   Ai征服者 · 全站设计系统 v2
   首页 / 登录 / 注册 / 文档 共用；控制台另有独立换肤层
   ========================================================================== */

:root{
  --bg:#060708;
  --bg-1:#0A0C0E;
  --surface:#0E1113;
  --surface-2:#131719;
  --line:rgba(255,255,255,.07);
  --line-2:rgba(255,255,255,.13);
  --text:#F0F1F3;
  --text-2:#C3C9D0;
  --muted:#8A929A;
  --muted-2:#5F676E;

  --champagne:#F2E3C0;
  --gold:#D9B65C;
  --gold-deep:#B08A38;
  --cool:#8FB6C9;

  --grad-gold:linear-gradient(115deg,#FFF6E2 0%,#F2E3C0 28%,#D9B65C 62%,#B08A38 100%);

  --r-xs:8px; --r-sm:12px; --r-md:16px; --r-lg:22px; --r-xl:28px;
  --maxw:1200px;
  --ff:"Inter","SF Pro Display",system-ui,-apple-system,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --mono:"SFMono-Regular",ui-monospace,"JetBrains Mono","Cascadia Code",Consolas,monospace;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  background:var(--bg); color:var(--text); font-family:var(--ff);
  font-size:15px; line-height:1.65; -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
::selection{background:rgba(217,182,92,.28)}

/* ---------- 背景层 ---------- */
.bg-layer{position:fixed;inset:0;z-index:-3;pointer-events:none;background:var(--bg)}
.bg-layer::before,
.bg-layer::after{content:"";position:absolute;border-radius:50%;filter:blur(90px)}
.bg-layer::before{
  width:820px;height:620px;top:-220px;right:-140px;
  background:radial-gradient(circle,rgba(217,182,92,.16),transparent 68%);
  animation:drift 22s var(--ease) infinite alternate;
}
.bg-layer::after{
  width:760px;height:560px;bottom:-260px;left:-180px;
  background:radial-gradient(circle,rgba(96,146,170,.14),transparent 70%);
  animation:drift 26s var(--ease) infinite alternate-reverse;
}
@keyframes drift{
  from{transform:translate3d(0,0,0) scale(1)}
  to{transform:translate3d(-40px,30px,0) scale(1.08)}
}
.grid-layer{
  position:fixed;inset:0;z-index:-2;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:80px 80px;
  mask-image:radial-gradient(ellipse 80% 60% at 50% 0%,#000 10%,transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse 80% 60% at 50% 0%,#000 10%,transparent 75%);
}
.noise{
  position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.028;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 32px;position:relative}

/* ---------- 排版 ---------- */
h1,h2,h3,h4{font-weight:600;letter-spacing:-.028em;line-height:1.12}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:11.5px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--gold);font-weight:600;
}
.eyebrow::before{content:"";width:18px;height:1px;background:linear-gradient(90deg,transparent,var(--gold))}
.display{
  font-size:clamp(40px,5.2vw,68px);
  letter-spacing:-.04em;line-height:1.04;font-weight:600;
}
.grad-text{
  background:var(--grad-gold);-webkit-background-clip:text;background-clip:text;
  color:transparent;
}
.lede{color:var(--muted);font-size:16.5px;line-height:1.75}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:46px;padding:0 24px;border-radius:999px;
  font-size:14.5px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),background .22s,border-color .22s;
}
.btn:hover{transform:translateY(-2px)}
.btn-primary{
  color:#1A1405;background:var(--grad-gold);
  box-shadow:0 12px 30px -16px rgba(217,182,92,.75), inset 0 1px 0 rgba(255,255,255,.5);
}
.btn-primary:hover{box-shadow:0 20px 44px -18px rgba(217,182,92,.85), inset 0 1px 0 rgba(255,255,255,.6)}
.btn-ghost{
  color:var(--text);background:rgba(255,255,255,.035);
  border-color:var(--line-2);backdrop-filter:blur(8px);
}
.btn-ghost:hover{background:rgba(255,255,255,.075);border-color:rgba(255,255,255,.24)}
.btn-sm{height:38px;padding:0 18px;font-size:13.5px}

/* ---------- 卡片 ---------- */
.card{
  position:relative;border-radius:var(--r-lg);border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.012));
  box-shadow:0 30px 70px -50px #000, inset 0 1px 0 rgba(255,255,255,.06);
  transition:border-color .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease);
}
.card:hover{border-color:var(--line-2);transform:translateY(-3px);
  box-shadow:0 40px 90px -50px #000, inset 0 1px 0 rgba(255,255,255,.09)}
.card-glow::after{
  content:"";position:absolute;inset:-1px;border-radius:inherit;pointer-events:none;
  background:linear-gradient(140deg,rgba(242,227,192,.22),transparent 32%,transparent 70%,rgba(143,182,201,.14));
  -webkit-mask:linear-gradient(#000,#000) content-box,linear-gradient(#000,#000);
  -webkit-mask-composite:xor;mask-composite:exclude;
  padding:1px;
}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  backdrop-filter:blur(18px) saturate(150%);
  background:rgba(6,7,8,.72);
  border-bottom:1px solid transparent;
  transition:border-color .3s,background .3s;
}
.site-header.stuck{border-bottom-color:var(--line);background:rgba(6,7,8,.9)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.logo{display:flex;align-items:center;gap:11px;font-weight:600;letter-spacing:-.01em;font-size:15.5px}
.logo-mark{
  width:32px;height:32px;border-radius:10px;display:grid;place-items:center;
  font-size:13px;font-weight:700;color:#1A1405;background:var(--grad-gold);
  box-shadow:0 6px 18px -10px rgba(217,182,92,.9), inset 0 1px 0 rgba(255,255,255,.55);
}
.logo-img{
  width:36px;height:36px;flex:none;object-fit:contain;
  filter:drop-shadow(0 0 10px rgba(96,150,215,.45)) brightness(1.08) contrast(1.05);
}
.nav-links{display:flex;gap:34px;font-size:14px;color:var(--muted)}
.nav-links a{position:relative;transition:color .2s}
.nav-links a::after{
  content:"";position:absolute;left:0;right:100%;bottom:-6px;height:1px;
  background:var(--grad-gold);transition:right .28s var(--ease);
}
.nav-links a:hover{color:var(--text)}
.nav-links a:hover::after{right:0}
.nav-actions{display:flex;align-items:center;gap:12px}

/* ---------- 通用区块 ---------- */
.section{padding:104px 0;position:relative}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:40px;margin-bottom:52px}
.section-head h2{font-size:clamp(27px,2.7vw,38px);margin-top:14px}
.section-head p{color:var(--muted);font-size:14.5px;max-width:400px;line-height:1.8}
.hairline{height:1px;background:linear-gradient(90deg,transparent,var(--line-2),transparent)}

/* ---------- 入场动画 ---------- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:none}
.reveal[data-delay="1"]{transition-delay:.08s}
.reveal[data-delay="2"]{transition-delay:.16s}
.reveal[data-delay="3"]{transition-delay:.24s}
.reveal[data-delay="4"]{transition-delay:.32s}

@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}

/* ---------- 认证页（登录/注册） ---------- */
.auth-body{min-height:100vh;display:grid;grid-template-columns:1.08fr .92fr}
.auth-aside{
  position:relative;overflow:hidden;padding:52px 60px;
  isolation:isolate;
  display:flex;flex-direction:column;justify-content:space-between;
  border-right:1px solid var(--line);
  background:
    radial-gradient(760px 480px at 76% 4%,rgba(217,182,92,.16),transparent 62%),
    radial-gradient(620px 460px at 4% 96%,rgba(96,146,170,.15),transparent 62%),
    #08090B;
}
.auth-aside .grid-layer{position:absolute;opacity:.55;mask-image:radial-gradient(circle at 42% 34%,#000,transparent 70%)}
.auth-main{display:flex;align-items:center;justify-content:center;padding:48px 32px}
.auth-card{width:100%;max-width:430px;position:relative;z-index:1}
.auth-head h2{font-size:29px;letter-spacing:-.03em}
.auth-head p{margin-top:9px;font-size:14px;color:var(--muted)}
.auth-head p a{color:var(--gold)}
.auth-head p a:hover{text-decoration:underline}

/* 左侧品牌区内容 */
.auth-hero{position:relative;z-index:1;max-width:470px}
.auth-hero h1{font-size:clamp(30px,3.1vw,42px);line-height:1.16;letter-spacing:-.035em}
.auth-hero > p{margin-top:20px;color:var(--muted);font-size:15px;max-width:420px}
.auth-bullets{list-style:none;margin-top:36px;display:grid;gap:15px}
.auth-bullets li{display:flex;gap:13px;font-size:14px;color:var(--text-2);align-items:flex-start}
.auth-bullets li span.dot{
  width:20px;height:20px;border-radius:50%;flex:none;margin-top:2px;
  border:1px solid rgba(217,182,92,.4);background:rgba(217,182,92,.1);
  display:grid;place-items:center;color:var(--gold);font-size:10px;
}
.auth-footer{position:relative;z-index:1;display:flex;gap:20px;flex-wrap:wrap;font-size:12.5px;color:var(--muted-2)}

/* 表单控件 */
.form{margin-top:28px;display:grid;gap:18px}
.field{display:block}
.field > label,.label-row > label{
  display:block;font-size:12.5px;color:var(--muted);margin-bottom:8px;letter-spacing:.02em;
}
.label-row{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:8px}
.label-row label{margin-bottom:0}
.link-mini{font-size:12.5px;color:var(--muted);transition:color .18s}
.link-mini:hover{color:var(--gold)}
.input{
  width:100%;height:48px;padding:0 15px;border-radius:13px;
  background:rgba(255,255,255,.035);border:1px solid var(--line);
  color:var(--text);font-size:14.5px;font-family:var(--ff);outline:none;
  transition:border-color .2s,box-shadow .2s,background .2s;
}
.input::placeholder{color:#575E65}
.input:hover{border-color:var(--line-2)}
.input:focus{
  border-color:rgba(217,182,92,.55);background:rgba(255,255,255,.055);
  box-shadow:0 0 0 4px rgba(217,182,92,.1), inset 0 1px 0 rgba(255,255,255,.05);
}
.input.err{border-color:rgba(227,120,92,.6)}
.input.err:focus{box-shadow:0 0 0 4px rgba(227,120,92,.1)}
.hint{font-size:11.5px;color:var(--muted-2);margin-top:7px;line-height:1.55}
.row{display:grid;grid-template-columns:1fr 120px;gap:10px}
.pw-wrap{position:relative}
.pw-wrap .input{padding-right:58px}
.eye{
  position:absolute;right:5px;top:50%;transform:translateY(-50%);
  width:48px;height:38px;border:0;border-radius:9px;background:transparent;
  color:var(--muted-2);cursor:pointer;font-size:12px;font-family:var(--ff);
  transition:.18s;
}
.eye:hover{color:var(--text);background:rgba(255,255,255,.06)}
.side-btn{
  height:48px;border-radius:13px;border:1px solid var(--line-2);
  background:rgba(255,255,255,.045);color:var(--text);
  font-size:13px;font-family:var(--ff);cursor:pointer;white-space:nowrap;
  transition:.2s;
}
.side-btn:hover:not(:disabled){background:rgba(255,255,255,.09);border-color:rgba(255,255,255,.24)}
.side-btn:disabled{color:var(--muted-2);cursor:not-allowed;background:transparent;border-color:var(--line)}

.agree{display:flex;gap:10px;align-items:flex-start;font-size:12.5px;color:var(--muted);line-height:1.6}
.agree input{width:15px;height:15px;margin-top:3px;accent-color:var(--gold);flex:none;cursor:pointer}
.agree a{color:var(--gold)}
.agree a:hover{text-decoration:underline}

.btn-block{width:100%;height:50px;border-radius:13px;font-size:15px}
.form-note{margin-top:22px;font-size:12.5px;color:var(--muted-2);text-align:center;line-height:1.8}
.form-note a{color:var(--gold)}
.form-note a:hover{text-decoration:underline}

.msg{font-size:13px;padding:12px 15px;border-radius:12px;display:none;margin-top:22px;line-height:1.55}
.msg.show{display:block}
.msg.error{background:rgba(227,120,92,.09);border:1px solid rgba(227,120,92,.3);color:#F0A48F}
.msg.ok{background:rgba(95,211,160,.09);border:1px solid rgba(95,211,160,.28);color:#8FE6C1}

/* 注册成功 */
.done{display:none;text-align:center;padding:34px 0 10px}
.done.show{display:block}
.done .tick{
  width:56px;height:56px;border-radius:50%;margin:0 auto 20px;display:grid;place-items:center;
  background:rgba(95,211,160,.1);border:1px solid rgba(95,211,160,.32);
  color:#8FE6C1;font-size:22px;
}
.done h3{font-size:20px}
.done p{color:var(--muted);font-size:13.5px;margin-top:10px}
.done .btn{width:auto;padding:0 30px;margin:24px auto 0}

/* 认证页装饰性浮层卡片 */
.auth-badge{
  position:relative;z-index:1;margin-top:38px;padding:18px 20px;border-radius:16px;
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  backdrop-filter:blur(8px);max-width:400px;
}
.auth-badge .row-a{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--muted-2)}
.auth-badge .ok{display:inline-flex;align-items:center;gap:7px;color:#8FE6C1;font-size:12px}
.auth-badge .ok i{width:6px;height:6px;border-radius:50%;background:#5FD3A0;box-shadow:0 0 0 4px rgba(95,211,160,.12)}
.auth-badge .bars{display:flex;gap:4px;margin-top:14px;align-items:flex-end;height:34px}
.auth-badge .bars span{flex:1;border-radius:3px;background:linear-gradient(180deg,rgba(217,182,92,.75),rgba(217,182,92,.12))}

@media(max-width:1024px){
  .auth-body{grid-template-columns:1fr}
  .auth-aside{display:none}
  .auth-main{padding:44px 22px 60px;align-items:flex-start;padding-top:56px}
  .auth-card{max-width:460px;margin:0 auto}
}

/* ---------- 文档页 ---------- */
.doc-shell{display:grid;grid-template-columns:250px 1fr;gap:64px;max-width:1280px;margin:0 auto;padding:0 32px}
.doc-side{position:sticky;top:96px;align-self:start;height:calc(100vh - 120px);overflow-y:auto;padding:38px 0 60px}
.doc-side h5{font-size:10.5px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted-2);margin:24px 0 10px}
.doc-side h5:first-child{margin-top:0}
.doc-side a{
  display:block;font-size:13.5px;color:var(--muted);padding:6px 0 6px 14px;
  border-left:1px solid transparent;transition:.18s;
}
.doc-side a:hover{color:var(--text);border-left-color:var(--line-2)}
.doc-side a.on{color:var(--gold);border-left-color:var(--gold)}
.doc-main{padding:46px 0 120px;min-width:0}
.doc-main h1{font-size:40px;letter-spacing:-.035em}
.doc-main .lead{color:var(--muted);margin-top:16px;font-size:16px;max-width:700px;line-height:1.8}
.doc-main h2{
  font-size:23px;margin:64px 0 16px;padding-top:12px;letter-spacing:-.025em;
  position:relative;
}
.doc-main h3{font-size:16px;margin:32px 0 10px}
.doc-main p{color:var(--text-2);font-size:14.5px;margin:13px 0}
.doc-main ul,.doc-main ol{color:var(--text-2);font-size:14.5px;margin:13px 0 13px 22px}
.doc-main li{margin:7px 0}
.doc-main strong{color:var(--text);font-weight:600}
.doc-main code{
  font-family:var(--mono);font-size:12.5px;background:rgba(255,255,255,.07);
  padding:2px 7px;border-radius:6px;color:#E6EBF0;
}
.doc-main pre{
  font-family:var(--mono);font-size:13px;line-height:1.85;
  background:#0B0E10;border:1px solid var(--line);border-radius:14px;
  padding:18px 20px;overflow-x:auto;margin:18px 0;color:#C9D1D9;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
}
.doc-main pre .c{color:#5A646D}
.doc-main pre .k{color:#8FB6C9}
.doc-main pre .s{color:#C7DB9E}

.doc-note{
  border:1px solid var(--line);border-left:2px solid var(--gold);
  border-radius:0 14px 14px 0;background:rgba(217,182,92,.05);
  padding:15px 19px;margin:20px 0;font-size:14px;color:#D8D3C6;
}
.doc-note b{color:var(--champagne)}
.doc-note.warn{border-left-color:#D97757;background:rgba(217,119,87,.06)}
.doc-note.warn b{color:#E8977B}

.doc-cardgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:20px 0}
.doc-card{border:1px solid var(--line);border-radius:14px;padding:20px;background:rgba(255,255,255,.022)}
.doc-card h4{font-size:14px;margin-bottom:6px}
.doc-card p{font-size:13px;color:var(--muted);margin:0}

.doc-main table{width:100%;border-collapse:collapse;margin:20px 0;font-size:13.5px}
.doc-main th{
  text-align:left;font-weight:600;color:var(--muted);font-size:11.5px;
  letter-spacing:.08em;text-transform:uppercase;padding:11px 13px;
  border-bottom:1px solid var(--line-2);
}
.doc-main td{padding:12px 13px;border-bottom:1px solid var(--line);color:var(--text-2);vertical-align:top}
.doc-main tbody tr{transition:background .18s}
.doc-main tbody tr:hover{background:rgba(255,255,255,.022)}
.doc-main td code{white-space:nowrap}

.site-footer{border-top:1px solid var(--line);padding:56px 0 44px;margin-top:40px}
.site-footer .foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.site-footer h4{font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted-2);margin-bottom:16px}
.site-footer a{display:block;font-size:13.5px;color:var(--muted);margin-bottom:11px;transition:color .18s}
.site-footer a:hover{color:var(--text)}
.site-footer .foot-bottom{
  margin-top:44px;padding-top:26px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;
  font-size:12.5px;color:var(--muted-2);
}

@media(max-width:1024px){
  .doc-shell{grid-template-columns:1fr;gap:0}
  .doc-side{display:none}
  .doc-main{padding-top:36px}
  .site-footer .foot-grid{grid-template-columns:1fr 1fr}
}