/* =====================================================================
   AURUM 曜金旗舰版 · 设计系统
   黑曜石 × 香槟金 —— 奢华黑金视觉语言
   ===================================================================== */

/* ---------------- 设计令牌 ---------------- */
:root{
  /* 黑曜石底色 */
  --obsidian-0:#080706;
  --obsidian-1:#0d0c0a;
  --obsidian-2:#13110e;
  --obsidian-3:#1a1713;
  --obsidian-4:#232019;
  /* 金色体系 */
  --gold-1:#8a6a2c;
  --gold-2:#b8923e;
  --gold-3:#d4af6a;
  --gold-4:#e8c886;
  --gold-5:#f5ddaa;
  --gold-6:#faf0d4;
  /* 文字 */
  --ivory:#f3ecdb;
  --ivory-dim:#c8bda4;
  --muted:#9a8d72;
  --muted-2:#6f6550;
  /* 语义色（压暗以融入黑金） */
  --emerald:#7fae8c;
  --crimson:#c47a6e;
  --azure:#8aa6c4;
  /* 线与面 */
  --hairline:rgba(212,175,106,.18);
  --hairline-strong:rgba(212,175,106,.4);
  --surface:rgba(26,23,19,.72);
  --surface-2:rgba(35,32,25,.85);
  /* 渐变 */
  --gold-grad:linear-gradient(115deg,#8a6a2c 0%,#c9a455 22%,#f7e6b8 42%,#d9b972 58%,#a8853c 78%,#e8c886 100%);
  --gold-grad-soft:linear-gradient(135deg,rgba(232,200,134,.16),rgba(138,106,44,.06));
  --obsidian-grad:linear-gradient(180deg,#0d0c0a 0%,#080706 100%);
  /* 主题化部件（默认=曜金黑金） */
  --nav-bg:rgba(10,9,7,.82);
  --card-grad:linear-gradient(160deg,rgba(35,32,25,.9),rgba(19,17,14,.92));
  --card-grad-2:linear-gradient(160deg,rgba(48,40,22,.9),rgba(22,19,13,.94));
  --modal-bg:linear-gradient(165deg,#1d1a15,#100e0b);
  --input-bg:rgba(8,7,6,.6);
  --scroll-track:#0b0a08;
  --scroll-thumb:linear-gradient(#6b5220,#b8923e);
  --sidebar-bg:linear-gradient(180deg,#12100d,#0a0907);
  --terminal-bg:#070605;
  --terminal-text:#9a8f78;
  --toast-bg:rgba(20,18,14,.95);
  --footer-bg:linear-gradient(180deg,transparent,rgba(0,0,0,.4));
  /* 尺寸 */
  --nav-h:72px;
  --radius:14px;
  --radius-lg:22px;
  --shadow-gold:0 18px 60px -18px rgba(212,175,106,.35);
  --shadow-deep:0 30px 80px -30px rgba(0,0,0,.85);
  --ease-lux:cubic-bezier(.22,1,.36,1);
  --serif:"Noto Serif SC","Songti SC",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --mono:"JetBrains Mono","Cascadia Code",ui-monospace,Consolas,monospace;
}

/* ---------------- 重置 ---------------- */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--obsidian-0);
  color:var(--ivory);
  font-family:var(--sans);
  font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
::selection{background:rgba(212,175,106,.32);color:#fff}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
ul{list-style:none}
h1,h2,h3,h4{font-family:var(--serif);font-weight:700;line-height:1.28;color:var(--ivory)}

/* 滚动条 */
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--scroll-track)}
::-webkit-scrollbar-thumb{background:var(--scroll-thumb);border-radius:8px;border:2px solid var(--scroll-track)}

/* ---------------- 背景层：光晕 / 颗粒 / 网格 ---------------- */
.bg-stage{position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
  radial-gradient(900px 500px at 78% -8%,rgba(212,175,106,.13),transparent 60%),
  radial-gradient(800px 600px at 8% 18%,rgba(138,106,44,.10),transparent 60%),
  radial-gradient(1200px 800px at 50% 110%,rgba(184,146,62,.10),transparent 60%),
  var(--obsidian-grad);
}
.bg-grid{position:fixed;inset:0;z-index:-2;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(212,175,106,.045) 1px,transparent 1px),
  linear-gradient(90deg,rgba(212,175,106,.045) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 90% 70% at 50% 0%,#000 30%,transparent 75%);
}
.grain{position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.06;mix-blend-mode:overlay}
.grain::after{content:"";position:absolute;inset:-50%;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation:grainShift 9s steps(6) infinite}
@keyframes grainShift{
  0%,100%{transform:translate(0,0)}20%{transform:translate(-3%,2%)}
  40%{transform:translate(2%,-3%)}60%{transform:translate(-2%,-2%)}80%{transform:translate(3%,3%)}}

/* 顶部滚动进度 */
.scroll-progress{position:fixed;top:0;left:0;height:2px;width:0;z-index:200;
  background:var(--gold-grad);box-shadow:0 0 12px rgba(232,200,134,.8)}

/* ---------------- 布局工具 ---------------- */
.wrap{width:min(1240px,92vw);margin:0 auto}
.section{padding:120px 0;position:relative}
.section-tight{padding:80px 0}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:12px;letter-spacing:.32em;
  text-transform:uppercase;color:var(--gold-3);font-weight:500;margin-bottom:22px}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--gold-grad)}
.sec-title{font-size:clamp(28px,3.6vw,44px);font-weight:900;letter-spacing:.02em;margin-bottom:18px}
.sec-sub{color:var(--muted);max-width:680px;font-size:16px}
.text-center{text-align:center}
.mx-auto{margin-left:auto;margin-right:auto}

/* 鎏金文字（静态渐变，不闪动） */
.gold-text{
  background:var(--gold-grad);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}

/* 发丝金线分隔 */
.gold-rule{height:1px;border:0;background:linear-gradient(90deg,transparent,var(--hairline-strong),transparent)}

/* ---------------- 按钮 ---------------- */
.btn{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 30px;border-radius:999px;font-size:15px;font-weight:600;letter-spacing:.04em;
  transition:transform .4s var(--ease-lux),box-shadow .4s,border-color .4s;overflow:hidden;
  will-change:transform}
.btn svg{width:17px;height:17px}
.btn-gold{background:var(--gold-grad);background-size:180% auto;color:#241a08;
  box-shadow:0 10px 34px -10px rgba(212,175,106,.6),inset 0 1px 0 rgba(255,255,255,.5)}
.btn-gold:hover{background-position:right center;transform:translateY(-2px);
  box-shadow:0 18px 46px -10px rgba(212,175,106,.75),inset 0 1px 0 rgba(255,255,255,.6)}
.btn-ghost{border:1px solid var(--hairline-strong);color:var(--gold-4);background:rgba(212,175,106,.04)}
.btn-ghost:hover{border-color:var(--gold-3);background:rgba(212,175,106,.1);transform:translateY(-2px)}
.btn-dark{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);color:var(--ivory)}
.btn-dark:hover{background:rgba(255,255,255,.1);transform:translateY(-2px)}
.btn-sm{padding:9px 18px;font-size:13px}
.btn-lg{padding:17px 38px;font-size:16px}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}

/* ---------------- 导航 ---------------- */
.nav{position:fixed;top:0;left:0;right:0;height:var(--nav-h);z-index:100;
  display:flex;align-items:center;transition:background .4s,border-color .4s,backdrop-filter .4s;
  border-bottom:1px solid transparent}
.nav.scrolled{background:var(--nav-bg);backdrop-filter:blur(18px);border-bottom-color:var(--hairline)}
.nav-inner{width:min(1320px,92vw);margin:0 auto;display:flex;align-items:center;gap:34px}
.brand{display:flex;align-items:center;gap:13px;font-family:var(--serif);font-weight:900;font-size:18px}
.brand-mark{width:38px;height:38px;flex:none;border-radius:10px;position:relative;
  background:conic-gradient(from 200deg,#8a6a2c,#f5ddaa,#b8923e,#8a6a2c);
  display:grid;place-items:center;box-shadow:0 6px 20px -6px rgba(212,175,106,.7)}
.brand-mark::before{content:"";position:absolute;border-radius:9px;background:#100e0b;inset:1px}
.brand-mark svg{position:relative;width:20px;height:20px}
.brand small{display:block;font-size:10px;letter-spacing:.3em;color:var(--gold-3);font-weight:400;font-family:var(--sans)}
.nav-links{display:flex;gap:6px;margin-left:auto}
.nav-links a{padding:9px 16px;border-radius:999px;font-size:14px;color:var(--ivory-dim);
  transition:.3s;position:relative}
.nav-links a:hover,.nav-links a.active{color:var(--gold-4);background:rgba(212,175,106,.09)}
.nav-cta{margin-left:8px}
.nav-burger{display:none;margin-left:auto;flex-direction:column;gap:5px;padding:8px}
.nav-burger span{width:24px;height:2px;background:var(--gold-4);transition:.3s;border-radius:2px}

/* ---------------- 卡片：金边奢华容器 ---------------- */
.lux-card{position:relative;border-radius:var(--radius);padding:30px;
  background:var(--card-grad);
  border:1px solid var(--hairline);
  transition:transform .5s var(--ease-lux),border-color .5s,box-shadow .5s;overflow:hidden}
.lux-card::before{content:"";position:absolute;inset:0;border-radius:inherit;padding:1px;
  background:linear-gradient(150deg,rgba(245,221,170,.5),transparent 30%,transparent 70%,rgba(138,106,44,.4));
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;opacity:.7;pointer-events:none}
.lux-card:hover{transform:translateY(-6px);border-color:var(--hairline-strong);
  box-shadow:var(--shadow-gold)}
.lux-card .ico{width:48px;height:48px;border-radius:12px;display:grid;place-items:center;margin-bottom:20px;
  background:var(--gold-grad-soft);border:1px solid var(--hairline)}
.lux-card .ico svg{width:23px;height:23px;stroke:var(--gold-4)}
.lux-card h3{font-size:19px;margin-bottom:10px}
.lux-card p{color:var(--muted);font-size:14.5px}

/* 角标装饰 */
.corner{position:absolute;width:18px;height:18px;border-color:var(--gold-3);opacity:.5}
.corner.tl{top:10px;left:10px;border-top:1px solid;border-left:1px solid}
.corner.tr{top:10px;right:10px;border-top:1px solid;border-right:1px solid}
.corner.bl{bottom:10px;left:10px;border-bottom:1px solid;border-left:1px solid}
.corner.br{bottom:10px;right:10px;border-bottom:1px solid;border-right:1px solid}

/* ---------------- 表格 ---------------- */
.table-wrap{border:1px solid var(--hairline);border-radius:var(--radius);overflow:auto;
  background:var(--surface)}
table.data{width:100%;border-collapse:collapse;font-size:14px;min-width:640px}
table.data th{text-align:left;padding:14px 18px;font-size:12px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--gold-3);font-weight:600;background:rgba(212,175,106,.06);
  border-bottom:1px solid var(--hairline);white-space:nowrap}
table.data td{padding:13px 18px;border-bottom:1px solid rgba(212,175,106,.08);
  color:var(--ivory-dim);vertical-align:middle}
table.data tr:last-child td{border-bottom:none}
table.data tbody tr{transition:background .25s}
table.data tbody tr:hover{background:rgba(212,175,106,.05)}
.code-cell{font-family:var(--mono);font-size:12.5px;color:var(--gold-4);letter-spacing:.02em}

/* 徽章 */
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;font-size:12px;font-weight:500;white-space:nowrap}
.badge::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor}
.badge.unused{color:var(--azure);background:rgba(138,166,196,.12)}
.badge.activated{color:var(--emerald);background:rgba(127,174,140,.12)}
.badge.revoked{color:var(--crimson);background:rgba(196,122,110,.12)}

/* ---------------- 表单 ---------------- */
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;color:var(--ivory-dim);margin-bottom:8px;font-weight:500}
.input,.select,textarea.input{width:100%;padding:12px 16px;border-radius:10px;
  background:var(--input-bg);border:1px solid var(--hairline);color:var(--ivory);
  transition:border-color .3s,box-shadow .3s;outline:none}
.input:focus,.select:focus,textarea.input:focus{border-color:var(--gold-3);
  box-shadow:0 0 0 3px rgba(212,175,106,.12)}
.select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23d4af6a' fill='none' stroke-width='1.6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 16px center;padding-right:40px}
.select option{background:#15130f}
.input::placeholder{color:var(--muted-2)}
textarea.input{resize:vertical;min-height:90px}
.check-row{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--ivory-dim);cursor:pointer}
.check-row input{width:17px;height:17px;accent-color:var(--gold-3)}

/* ---------------- 滚动揭示动效 ---------------- */
.reveal{opacity:0;transform:translateY(38px);transition:opacity 1s var(--ease-lux),transform 1s var(--ease-lux)}
.reveal.in{opacity:1;transform:none}
.reveal-l{opacity:0;transform:translateX(-44px);transition:all 1s var(--ease-lux)}
.reveal-r{opacity:0;transform:translateX(44px);transition:all 1s var(--ease-lux)}
.reveal-l.in,.reveal-r.in{opacity:1;transform:none}
.reveal-scale{opacity:0;transform:scale(.92);transition:all 1.1s var(--ease-lux)}
.reveal-scale.in{opacity:1;transform:none}
[data-stagger]>*{opacity:0;transform:translateY(30px);transition:opacity .9s var(--ease-lux),transform .9s var(--ease-lux)}
[data-stagger].in>*{opacity:1;transform:none}
[data-stagger].in>*:nth-child(1){transition-delay:.05s}
[data-stagger].in>*:nth-child(2){transition-delay:.14s}
[data-stagger].in>*:nth-child(3){transition-delay:.23s}
[data-stagger].in>*:nth-child(4){transition-delay:.32s}
[data-stagger].in>*:nth-child(5){transition-delay:.41s}
[data-stagger].in>*:nth-child(6){transition-delay:.5s}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
  .reveal,.reveal-l,.reveal-r,.reveal-scale,[data-stagger]>*{opacity:1;transform:none}
}

/* ---------------- Toast ---------------- */
.toast-host{position:fixed;right:24px;bottom:24px;z-index:400;display:flex;flex-direction:column;gap:12px}
.toast{padding:14px 20px;border-radius:12px;background:var(--toast-bg);border:1px solid var(--hairline-strong);
  backdrop-filter:blur(12px);font-size:14px;display:flex;align-items:center;gap:11px;min-width:260px;
  box-shadow:var(--shadow-deep);animation:toastIn .5s var(--ease-lux)}
.toast.ok{border-color:rgba(127,174,140,.5)}
.toast.err{border-color:rgba(196,122,110,.5)}
.toast .dot{width:8px;height:8px;border-radius:50%;background:var(--gold-4);flex:none}
.toast.ok .dot{background:var(--emerald)}.toast.err .dot{background:var(--crimson)}
.toast.out{animation:toastOut .4s var(--ease-lux) forwards}
@keyframes toastIn{from{opacity:0;transform:translateX(40px)}to{opacity:1;transform:none}}
@keyframes toastOut{to{opacity:0;transform:translateX(40px)}}

/* ---------------- 模态框 ---------------- */
.modal-mask{position:fixed;inset:0;z-index:300;background:rgba(5,4,3,.72);backdrop-filter:blur(6px);
  display:none;align-items:center;justify-content:center;padding:24px}
.modal-mask.show{display:flex;animation:fadeIn .3s}
.modal{width:min(560px,100%);max-height:88vh;overflow:auto;border-radius:var(--radius-lg);
  background:var(--modal-bg);border:1px solid var(--hairline-strong);
  box-shadow:var(--shadow-deep);animation:modalIn .45s var(--ease-lux)}
.modal.wide{width:min(820px,100%)}
@keyframes modalIn{from{opacity:0;transform:translateY(30px) scale(.97)}to{opacity:1;transform:none}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.modal-head{display:flex;align-items:center;justify-content:space-between;padding:22px 28px;
  border-bottom:1px solid var(--hairline)}
.modal-head h3{font-size:20px}
.modal-x{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;color:var(--muted);transition:.3s}
.modal-x:hover{background:rgba(255,255,255,.08);color:var(--ivory)}
.modal-body{padding:28px}
.modal-foot{padding:18px 28px;border-top:1px solid var(--hairline);display:flex;justify-content:flex-end;gap:12px}

/* ---------------- 页脚 ---------------- */
.footer{border-top:1px solid var(--hairline);padding:70px 0 34px;margin-top:40px;
  background:var(--footer-bg);position:relative}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:44px;margin-bottom:50px}
.footer h4{font-size:14px;color:var(--gold-3);margin-bottom:18px;font-family:var(--sans);letter-spacing:.1em}
.footer li{margin-bottom:11px}
.footer li a,.footer p{color:var(--muted);font-size:14px;transition:.3s}
.footer li a:hover{color:var(--gold-4)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:26px;
  border-top:1px solid rgba(212,175,106,.1);color:var(--muted-2);font-size:13px;gap:16px;flex-wrap:wrap}

/* ---------------- 响应式 ---------------- */
@media(max-width:960px){
  .section{padding:84px 0}
  .nav-links,.nav-cta{display:none}
  .nav-burger{display:flex}
  .nav-links.open{display:flex;position:absolute;top:var(--nav-h);left:0;right:0;flex-direction:column;
    background:rgba(12,10,8,.97);backdrop-filter:blur(18px);padding:18px 6vw 26px;gap:8px;
    border-bottom:1px solid var(--hairline)}
  .nav-links.open a{padding:13px 16px;font-size:15px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:560px){
  .footer-grid{grid-template-columns:1fr}
  .lux-card{padding:24px}
}