/* ==========================================================================
   OCBox — 共享设计系统
   --------------------------------------------------------------------------
   配色取自星图视觉稿：近黑底 + 冷蓝强调。
   FurryBox 是薄荷绿，OCBox 用蓝是为了两个平台一眼能分开。
   ========================================================================== */

@font-face{
  font-family:"Space Grotesk";
  src:url("fonts/SpaceGrotesk-400-latin.woff2") format("woff2");
  font-weight:400;font-display:swap;
  unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD;
}
@font-face{
  font-family:"Space Grotesk";
  src:url("fonts/SpaceGrotesk-400-latin-ext.woff2") format("woff2");
  font-weight:400;font-display:swap;
  unicode-range:U+0100-02AF,U+0304,U+0308,U+0329,U+1E00-1E9F,U+1EF2-1EFF,U+2020,U+20A0-20AB,U+20AD-20C0,U+2113,U+2C60-2C7F,U+A720-A7FF;
}
@font-face{
  font-family:"Geist";
  src:url("fonts/Geist-400-latin.woff2") format("woff2");
  font-weight:400;font-display:swap;
}
@font-face{
  font-family:"Geist Mono";
  src:url("fonts/GeistMono-400-latin.woff2") format("woff2");
  font-weight:400;font-display:swap;
}

:root{
  --bg:#06070a;
  --surface:#0e1016;
  --surface-2:#141821;
  --surface-3:#1a1f29;

  --line:#1c2029;
  --line-2:#2a303d;
  --line-3:#3a4252;

  --text:#e8eaee;
  --muted:#8b93a1;
  --faint:#5a616e;

  --ice:#7ab8ff;
  --ice-deep:#2a5a92;
  --ice-dim:#2a4a72;
  --ice-glow:rgba(122,184,255,.12);

  --ok:#3ee6b4;
  --warn:#f2c14e;
  --danger:#ff5a52;
  --danger-text:#ff8a84;

  --font-brand:"Space Grotesk",system-ui,sans-serif;
  --font-sans:"Geist",-apple-system,"PingFang SC","Microsoft YaHei UI","Microsoft YaHei",system-ui,sans-serif;
  --font-mono:"Geist Mono",ui-monospace,Menlo,Consolas,monospace;

  --r-sm:6px;
  --r:10px;
  --r-lg:14px;
}

*{box-sizing:border-box;margin:0;padding:0}

html{scroll-behavior:smooth}

body{
  background:var(--bg);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:14px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
  min-height:100vh;
  overflow-x:hidden;
}

a{color:var(--ice);text-decoration:none}
a:hover{text-decoration:underline}

::selection{background:rgba(122,184,255,.28)}

/* ---------------------------------------------------------------- 星空层 */
.stars{
  position:fixed;inset:0;z-index:0;pointer-events:none;
  background:
    radial-gradient(1px 1px at 20% 30%, #fff 50%, transparent 50%),
    radial-gradient(1px 1px at 60% 70%, #fff 50%, transparent 50%),
    radial-gradient(1px 1px at 80% 20%, #fff 50%, transparent 50%),
    radial-gradient(1.5px 1.5px at 40% 80%, #fff 50%, transparent 50%),
    radial-gradient(1px 1px at 90% 50%, #fff 50%, transparent 50%),
    radial-gradient(1px 1px at 10% 60%, #fff 50%, transparent 50%),
    radial-gradient(1px 1px at 50% 10%, #fff 50%, transparent 50%);
  background-size:600px 600px,700px 700px,500px 500px,800px 800px,650px 650px,550px 550px,750px 750px;
  opacity:.28;
}

.glow{
  position:fixed;top:-30vh;left:50%;transform:translateX(-50%);
  width:140vw;height:80vh;z-index:0;pointer-events:none;
  background:radial-gradient(ellipse at center,
    rgba(122,184,255,.14) 0%,
    rgba(122,184,255,.05) 35%,
    transparent 70%);
  filter:blur(28px);
}

.scan{
  position:fixed;inset:0;z-index:1;pointer-events:none;
  background:repeating-linear-gradient(
    0deg,
    rgba(255,255,255,.012) 0px,
    rgba(255,255,255,.012) 1px,
    transparent 1px,
    transparent 3px);
}

/* ---------------------------------------------------------------- HUD 框 */
.hud-frame{position:fixed;inset:14px;z-index:2;pointer-events:none}
.hud-frame::before,
.hud-frame::after{
  content:"";position:absolute;width:26px;height:26px;
  border-color:var(--line-2);border-style:solid;
}
.hud-frame::before{top:0;left:0;border-width:1px 0 0 1px}
.hud-frame::after{top:0;right:0;border-width:1px 1px 0 0}
.corner-bl{position:absolute;bottom:0;left:0;width:26px;height:26px;border:1px solid var(--line-2);border-width:0 0 1px 1px}
.corner-br{position:absolute;bottom:0;right:0;width:26px;height:26px;border:1px solid var(--line-2);border-width:0 1px 1px 0}

/* ---------------------------------------------------------------- 顶栏 */
.top{
  position:relative;z-index:20;
  display:flex;align-items:center;justify-content:space-between;
  padding:20px 34px;
  background:linear-gradient(180deg, var(--bg) 0%, var(--bg) 40%, transparent 100%);
}
.top.sticky{
  position:sticky;top:0;
}

.brand{
  display:inline-flex;align-items:baseline;gap:1px;
  font-family:var(--font-brand);
  font-size:22px;font-weight:400;letter-spacing:-.03em;
  color:var(--text);text-decoration:none;
}
.brand:hover{text-decoration:none}
.brand b{color:var(--ice);font-weight:400}
.brand-sub{
  margin-left:12px;
  font-family:var(--font-mono);
  font-size:10px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--faint);
}
.brand-wrap{display:flex;align-items:baseline}

.top-right{display:flex;align-items:center;gap:14px}

.clock{
  font-family:var(--font-mono);
  font-size:11.5px;letter-spacing:.08em;
  color:var(--muted);
  font-variant-numeric:tabular-nums;
}
.clock .dot{
  display:inline-block;width:5px;height:5px;border-radius:50%;
  background:var(--ok);margin-right:7px;vertical-align:middle;
  animation:pulse 2s ease-in-out infinite;
}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.3}}

/* ---------------------------------------------------------------- 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  min-height:38px;padding:0 16px;
  border-radius:var(--r-sm);
  border:1px solid var(--line-2);
  background:transparent;
  color:var(--muted);
  font-family:var(--font-sans);font-size:13px;
  cursor:pointer;transition:.18s;
  text-decoration:none;white-space:nowrap;
}
.btn:hover{color:var(--text);border-color:var(--line-3);background:rgba(255,255,255,.03);text-decoration:none}
.btn:disabled{opacity:.42;cursor:default}
.btn:disabled:hover{color:var(--muted);border-color:var(--line-2);background:transparent}

.btn-primary{
  border-color:rgba(122,184,255,.42);
  background:rgba(122,184,255,.1);
  color:var(--ice);
}
.btn-primary:hover{
  background:var(--ice);color:#04070d;border-color:var(--ice);
}

.btn-solid{
  border-color:var(--ice);
  background:var(--ice);
  color:#04070d;
}
.btn-solid:hover{background:#9ccaff;border-color:#9ccaff;color:#04070d}

.btn-block{width:100%}

/* ---------------------------------------------------------------- 输入 */
.input{
  width:100%;height:44px;
  padding:0 14px;
  border-radius:var(--r-sm);
  border:1px solid var(--line-2);
  background:rgba(14,16,22,.9);
  color:var(--text);
  font-family:var(--font-sans);font-size:14px;
  transition:.18s;
}
.input::placeholder{color:var(--faint)}
.input:focus{
  outline:none;border-color:var(--ice);
  box-shadow:0 0 0 3px rgba(122,184,255,.12);
  background:rgba(20,24,33,.95);
}

.field{margin-bottom:14px}
.label{
  display:block;margin-bottom:6px;
  font-family:var(--font-mono);
  font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--faint);
}

/* ---------------------------------------------------------------- 提示 */
.alert{
  display:flex;gap:9px;align-items:flex-start;
  padding:11px 13px;
  border-radius:var(--r-sm);
  font-size:12.5px;line-height:1.55;
  border:1px solid var(--line-2);
  background:var(--surface-2);
  color:var(--muted);
}
.alert.error{
  color:var(--danger-text);
  background:rgba(255,90,82,.08);
  border-color:rgba(255,90,82,.26);
}
.alert.ok{
  color:var(--ok);
  background:rgba(62,230,180,.07);
  border-color:rgba(62,230,180,.24);
}
.alert[hidden]{display:none}

/* ---------------------------------------------------------------- 卡片 */
.panel{
  border-radius:var(--r);
  border:1px solid var(--line);
  background:linear-gradient(180deg, rgba(20,24,33,.72) 0%, rgba(14,16,22,.72) 100%);
  padding:22px;
}

/* ---------------------------------------------------------------- 区块标题 */
.sec-head{
  display:flex;align-items:center;gap:14px;
  margin-bottom:18px;
}
.sec-title{
  font-family:var(--font-mono);
  font-size:10.5px;letter-spacing:.24em;text-transform:uppercase;
  color:var(--muted);white-space:nowrap;
}
.sec-line{flex:1;height:1px;background:var(--line)}
.sec-meta{
  font-family:var(--font-mono);font-size:10.5px;
  color:var(--faint);white-space:nowrap;
}

/* ---------------------------------------------------------------- 工具类 */
.mono{font-family:var(--font-mono)}
.muted{color:var(--muted)}
.faint{color:var(--faint)}
.center{text-align:center}
.mt-0{margin-top:0}
.mt-1{margin-top:8px}
.mt-2{margin-top:14px}
.mt-3{margin-top:22px}
.mb-0{margin-bottom:0}
.mb-1{margin-bottom:8px}
.mb-2{margin-bottom:14px}
.mb-3{margin-bottom:22px}
.hidden{display:none !important}
.spinner{
  display:inline-block;width:14px;height:14px;
  border:2px solid rgba(255,255,255,.16);
  border-top-color:var(--ice);
  border-radius:50%;
  animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------------------------------------------------------------- 响应式 */
@media (max-width:640px){
  .top{padding:16px 18px}
  .brand{font-size:19px}
  .brand-sub,.clock{display:none}
  .hud-frame{inset:8px}
}


/* ==== main ==== */
/* ==========================================================================
   oc.box — 主站
   ========================================================================== */

/* ---------------------------------------------------------------- Hero */
.hero{
  position:relative;z-index:3;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  padding:96px 24px 34px;
  text-align:center;
}

.hero-tag{
  font-family:var(--font-mono);
  font-size:10.5px;letter-spacing:.28em;text-transform:uppercase;
  color:var(--ice);opacity:.75;
  margin-bottom:20px;
}

.hero-title{
  font-family:var(--font-brand);
  font-size:clamp(40px, 6.2vw, 74px);
  font-weight:400;
  letter-spacing:-.045em;
  line-height:1.02;
  margin-bottom:16px;
}
.hero-title .dim{color:var(--faint)}

.hero-lead{
  max-width:470px;
  color:var(--muted);
  font-size:14.5px;line-height:1.75;
  margin-bottom:34px;
}

/* ---------------------------------------------------------------- 搜索 */
.search{position:relative;width:min(560px, 100%)}

.search input{
  width:100%;height:60px;
  padding:0 62px 0 22px;
  border-radius:11px;
  border:1px solid var(--line-2);
  background:rgba(14,16,22,.9);
  color:var(--text);
  font-family:var(--font-brand);
  font-size:21px;letter-spacing:-.01em;
  transition:.2s;
}
.search input::placeholder{color:var(--faint);font-weight:400}
.search input:focus{
  outline:none;
  border-color:var(--ice);
  box-shadow:0 0 0 3px rgba(122,184,255,.12), 0 0 40px rgba(122,184,255,.08);
  background:rgba(20,24,33,.95);
}

.search-go{
  position:absolute;right:12px;top:50%;transform:translateY(-50%);
  width:40px;height:40px;border-radius:8px;
  border:1px solid var(--line-2);background:var(--surface-2);
  color:var(--ice);cursor:pointer;transition:.18s;
  display:grid;place-items:center;
}
.search-go:hover{background:var(--ice);color:#04070d;border-color:var(--ice)}

/* ---------------------------------------------------------------- 快捷 */
.chips{display:flex;gap:8px;justify-content:center;flex-wrap:wrap;margin-top:18px}
.chip{
  padding:5px 11px;border-radius:5px;
  border:1px solid var(--line);
  background:rgba(20,24,33,.5);
  font-family:var(--font-mono);font-size:11.5px;
  color:var(--muted);cursor:pointer;transition:.15s;
}
.chip:hover{color:var(--ice);border-color:var(--ice-dim)}

/* ---------------------------------------------------------------- 区块 */
.section{
  position:relative;z-index:3;
  width:min(980px, 100%);
  margin:0 auto;
  padding:0 24px 70px;
}

/* ---------------------------------------------------------------- 星图 */
.grid{
  display:grid;
  grid-template-columns:repeat(auto-fill, minmax(288px, 1fr));
  gap:12px;
}

.node{
  position:relative;
  padding:20px 20px 18px;
  border-radius:var(--r);
  border:1px solid var(--line);
  background:linear-gradient(180deg, rgba(20,24,33,.72) 0%, rgba(14,16,22,.72) 100%);
  transition:.22s;
  overflow:hidden;
}

.node::before{
  content:"+";
  position:absolute;top:9px;left:11px;
  font-family:var(--font-mono);font-size:11px;
  color:var(--line-2);
  transition:.22s;
}

/* 可用 */
.node.is-free{
  border-color:rgba(122,184,255,.24);
  background:linear-gradient(180deg, rgba(24,32,46,.8) 0%, rgba(14,18,26,.8) 100%);
}
.node.is-free::before{color:var(--ice)}
.node.is-free:hover{
  border-color:rgba(122,184,255,.5);
  transform:translateY(-2px);
  box-shadow:0 8px 32px rgba(122,184,255,.09);
}
.node.is-free:hover::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(circle at 100% 0%, rgba(122,184,255,.1), transparent 55%);
}

/* 已占用 */
.node.is-taken{opacity:.42}
.node.is-taken::before{color:var(--line-2)}

/* 检查中 */
.node.is-checking{opacity:.6}

.node-name{
  font-family:var(--font-brand);
  font-size:19px;font-weight:400;letter-spacing:-.02em;
  margin-bottom:3px;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.node-name .sfx{color:var(--ice)}
.node.is-taken .node-name .sfx{color:var(--faint)}
.node-name .lbl{color:var(--text)}
.node.is-taken .node-name .lbl{color:var(--muted)}

.node-sub{
  font-family:var(--font-mono);
  font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--faint);
  margin-bottom:18px;
  min-height:16px;
}

.node-foot{
  display:flex;align-items:center;justify-content:space-between;
  padding-top:14px;
  border-top:1px solid rgba(255,255,255,.045);
}

.price{
  font-family:var(--font-mono);
  font-size:14px;color:var(--text);
  font-variant-numeric:tabular-nums;
}
.price span{font-size:10.5px;color:var(--faint);margin-left:3px}

.status{
  display:flex;align-items:center;gap:6px;
  font-family:var(--font-mono);
  font-size:10px;letter-spacing:.14em;text-transform:uppercase;
}
.status i{width:5px;height:5px;border-radius:50%;display:block}
.status.free{color:var(--ice)}
.status.free i{background:var(--ice);box-shadow:0 0 7px var(--ice)}
.status.taken{color:var(--faint)}
.status.taken i{background:var(--faint)}

.node-btn{
  margin-top:16px;width:100%;height:38px;
  border-radius:var(--r-sm);
  border:1px solid rgba(122,184,255,.32);
  background:rgba(122,184,255,.07);
  color:var(--ice);
  font-family:var(--font-sans);font-size:13px;
  cursor:pointer;transition:.18s;
}
.node-btn:hover{background:var(--ice);color:#04070d;border-color:var(--ice)}
.node-btn:disabled{opacity:.4;cursor:default}

/* 骨架 */
.node-skeleton{
  height:172px;
  border-radius:var(--r);
  border:1px solid var(--line);
  background:linear-gradient(90deg, var(--surface) 25%, var(--surface-2) 50%, var(--surface) 75%);
  background-size:200% 100%;
  animation:shimmer 1.4s infinite;
}
@keyframes shimmer{0%{background-position:200% 0}100%{background-position:-200% 0}}

/* ---------------------------------------------------------------- 步骤 */
.steps{
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(200px, 1fr));
  gap:12px;
}
.step{
  padding:20px;
  border-radius:var(--r);
  border:1px solid var(--line);
  background:rgba(14,16,22,.6);
}
.step-n{
  font-family:var(--font-mono);
  font-size:10.5px;letter-spacing:.2em;
  color:var(--ice);opacity:.6;
  margin-bottom:10px;
}
.step h3{
  font-family:var(--font-brand);
  font-size:16px;font-weight:400;letter-spacing:-.01em;
  margin-bottom:6px;
}
.step p{font-size:12.5px;line-height:1.6;color:var(--muted)}

/* ---------------------------------------------------------------- 底部 */
.foot{
  position:relative;z-index:3;
  padding:0 24px 60px;
}
.foot-inner{
  width:min(980px,100%);margin:0 auto;
  padding-top:26px;
  border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;flex-wrap:wrap;
}
.foot-txt{
  font-family:var(--font-mono);font-size:10.5px;
  color:var(--faint);letter-spacing:.1em;
}
.foot-links{display:flex;gap:18px}
.foot-links a{font-size:12px;color:var(--faint);transition:.15s}
.foot-links a:hover{color:var(--ice);text-decoration:none}

/* ---------------------------------------------------------------- 响应式 */
@media (max-width:640px){
  .hero{padding-top:70px}
  .search input{height:56px;font-size:18px;padding-right:56px}
  .grid{grid-template-columns:1fr}
  .sec-meta{display:none}
}