/* ============================================================
   金多宝论坛 · /assets/site.css
   全站共享：reset / 变量 / 中文排版 / 页头 / 页脚 / 通用组件
   ============================================================ */

/* ---------- 1. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:132px}
body{margin:0;min-height:100%}
h1,h2,h3,h4,h5,p,figure,blockquote{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img,svg,video{display:block;max-width:100%;height:auto}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
a{color:inherit;text-decoration:none}
table{border-collapse:collapse;width:100%}
hr{border:0}
html.nav-open{overflow:hidden}

/* ---------- 2. Design tokens ---------- */
:root{
  --ink:#0A1E3C;
  --ink-deep:#061428;
  --ink-card:#1B2A44;
  --gold:#D4AF37;
  --gold-warm:#F4E3B2;
  --coral:#FF6B4A;
  --steel:#8CA3B8;
  --mist:#E6EEF8;
  --dim:#4A5A6A;
  --white:#FFFFFF;

  --line:rgba(140,163,184,.22);
  --line-strong:rgba(140,163,184,.36);
  --line-gold:rgba(212,175,55,.42);
  --glass:rgba(9,26,52,.74);
  --glass-soft:rgba(140,163,184,.10);

  --font-display:"Archivo Narrow","Arial Narrow","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;
  --font-mono:"IBM Plex Mono","Roboto Mono",ui-monospace,SFMono-Regular,Consolas,monospace;
  --font-body:"Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;

  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-pill:999px;

  --pad-x:clamp(20px,5vw,64px);
  --section-y:clamp(40px,6vw,76px);
  --shadow-card:0 26px 60px -40px rgba(0,0,0,.95);
  --shadow-gold:0 16px 34px -20px rgba(212,175,55,.85);
}

/* ---------- 3. 基础排版 ---------- */
body{
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.7;
  color:var(--mist);
  background-color:var(--ink);
  background-image:
    radial-gradient(1100px 620px at 82% -12%,rgba(212,175,55,.11),transparent 62%),
    radial-gradient(880px 520px at 6% -6%,rgba(255,107,74,.09),transparent 58%),
    linear-gradient(180deg,#0A1E3C 0%,#081A33 44%,#061428 100%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3{
  font-family:var(--font-display);
  font-weight:800;
  letter-spacing:-.012em;
  line-height:1.1;
  color:var(--white);
}
h4,h5{font-family:var(--font-body);font-weight:700;color:var(--white)}
.editorial{font-family:var(--font-serif);font-weight:700;letter-spacing:0}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.annotation{font-size:12.5px;color:var(--dim);line-height:1.6}
a.text-link{color:var(--gold-warm);text-decoration:underline;text-decoration-color:rgba(212,175,55,.45);text-underline-offset:3px}
a.text-link:hover{color:var(--white);text-decoration-color:var(--coral)}

:focus-visible{outline:2px solid var(--coral);outline-offset:3px;border-radius:4px}

/* 城市天际线 / 海岸线情绪底纹 */
body::before{
  content:"";position:fixed;left:0;right:0;bottom:0;height:200px;z-index:0;pointer-events:none;
  background-image:
    repeating-linear-gradient(90deg,rgba(140,163,184,.13) 0 16px,transparent 16px 34px),
    repeating-linear-gradient(90deg,rgba(140,163,184,.09) 0 7px,transparent 7px 58px);
  background-repeat:repeat-x;
  background-size:100% 42%,100% 76%;
  background-position:0 100%,14px 100%;
  -webkit-mask-image:linear-gradient(to top,#000,transparent);
  mask-image:linear-gradient(to top,#000,transparent);
}
/* 左右框架轨：导航成为页面边框的一部分 */
body::after{
  content:"";position:fixed;inset:0;z-index:5;pointer-events:none;
  border-left:1px solid rgba(212,175,55,.30);
  border-right:1px solid rgba(212,175,55,.30);
  background-image:
    repeating-linear-gradient(180deg,rgba(212,175,55,.45) 0 1px,transparent 1px 26px),
    repeating-linear-gradient(180deg,rgba(212,175,55,.45) 0 1px,transparent 1px 26px);
  background-repeat:no-repeat,no-repeat;
  background-size:10px 100%,10px 100%;
  background-position:0 0,100% 0;
  opacity:.55;
}
@media (max-width:1180px){body::after{display:none}}

/* ---------- 4. 布局 ---------- */
.container{width:min(1280px,100% - var(--pad-x) * 2);margin-inline:auto}
.section{padding-block:var(--section-y);position:relative;z-index:1}
.section--tight{padding-block:clamp(26px,4vw,46px)}
.grid-12{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:clamp(16px,1.6vw,26px)}
.span-3{grid-column:span 3}
.span-4{grid-column:span 4}
.span-5{grid-column:span 5}
.span-6{grid-column:span 6}
.span-7{grid-column:span 7}
.span-8{grid-column:span 8}
.span-9{grid-column:span 9}
.span-10{grid-column:span 10}
.span-12{grid-column:span 12}
.stack{display:flex;flex-direction:column;gap:clamp(12px,1.4vw,20px)}
.row{display:flex;flex-wrap:wrap;gap:12px;align-items:center}

/* ---------- 5. 章节头 ---------- */
.section-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:14px clamp(20px,4vw,48px);
  padding-bottom:16px;margin-bottom:clamp(20px,3vw,34px);
  border-bottom:1px solid var(--line);
}
.eyebrow{
  display:inline-block;margin-bottom:10px;
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.26em;
  color:var(--gold);text-transform:uppercase;
}
.section-title{font-size:clamp(26px,3.6vw,46px)}
.section-title--xl{font-size:clamp(40px,7.4vw,104px);line-height:.94;letter-spacing:-.03em}
.section-note{max-width:54ch;font-size:14px;color:var(--steel);line-height:1.75}
.rule{height:6px;border:0;background-image:repeating-linear-gradient(90deg,rgba(212,175,55,.5) 0 1px,transparent 1px 18px);opacity:.6}

/* ---------- 6. 跳转链接 ---------- */
.skip-link{
  position:absolute;left:12px;top:-60px;z-index:120;
  padding:10px 18px;border-radius:0 0 var(--r-md) var(--r-md);
  background:var(--gold);color:var(--ink-deep);font-weight:700;font-size:14px;
  transition:top .18s ease;
}
.skip-link:focus{top:0}

/* ---------- 7. 页头：控制台 + 框架 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:linear-gradient(180deg,rgba(6,20,40,.95),rgba(6,20,40,.79));
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line-gold);
  box-shadow:0 22px 48px -34px rgba(0,0,0,.95);
}
.header-frame{
  height:4px;
  background:linear-gradient(90deg,var(--gold) 0%,var(--coral) 40%,var(--steel) 72%,rgba(140,163,184,0) 100%);
}
.site-header::after{
  content:"";display:block;height:6px;
  background-image:repeating-linear-gradient(90deg,rgba(212,175,55,.5) 0 1px,transparent 1px 16px);
  opacity:.45;
}
.header-console{
  display:grid;grid-template-columns:auto minmax(0,1fr) auto;
  align-items:center;gap:clamp(14px,2vw,34px);
  padding-block:11px 9px;
}

/* 品牌 */
.brand{display:inline-flex;align-items:center;gap:12px;min-width:0}
.brand-mark{
  flex:0 0 auto;width:42px;height:42px;display:grid;place-items:center;
  border-radius:11px;
  background:linear-gradient(148deg,var(--gold-warm),var(--gold) 62%,#b8912b);
  color:#08152b;font-family:var(--font-display);font-weight:800;font-size:22px;line-height:1;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.35),var(--shadow-gold);
}
.brand-text{display:flex;flex-direction:column;min-width:0}
.brand-name{
  font-family:var(--font-display);font-weight:800;font-size:19px;letter-spacing:.01em;
  color:var(--white);white-space:nowrap;
}
.brand-tag{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.05em;color:var(--steel);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}

/* 导航 */
.site-nav{justify-self:center;min-width:0}
.nav-list{
  display:flex;align-items:center;gap:2px;
  padding:4px;border:1px solid var(--line);border-radius:14px;
  background:rgba(8,24,48,.62);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.03);
}
.nav-link{
  display:block;padding:9px 14px;border-radius:10px;
  font-size:14.5px;color:var(--mist);white-space:nowrap;
  transition:background-color .18s ease,color .18s ease,transform .18s ease;
}
.nav-link:hover{background:rgba(140,163,184,.14);color:var(--white)}
.nav-link[aria-current="page"]{
  background:linear-gradient(180deg,rgba(212,175,55,.95),rgba(184,145,43,.86));
  color:#08152b;font-weight:700;
  box-shadow:var(--shadow-gold);
}
.nav-item{position:relative}

/* 右侧动作区 */
.header-actions{display:flex;align-items:center;gap:14px;justify-self:end;min-width:0}
.header-status{
  display:flex;gap:16px;padding:6px 13px;
  border:1px dashed var(--line-strong);border-radius:var(--r-md);
  background:rgba(6,20,40,.55);
}
.status-item{display:flex;flex-direction:column;gap:1px;min-width:62px}
.status-label{font-size:10px;letter-spacing:.14em;color:var(--steel)}
.status-value{
  font-family:var(--font-mono);font-size:13px;color:var(--gold-warm);
  font-variant-numeric:tabular-nums;white-space:nowrap;
}

/* 移动导航按钮 */
.nav-toggle{
  display:none;width:46px;height:46px;place-items:center;
  border:1px solid var(--line-gold);border-radius:var(--r-md);
  background:rgba(8,24,48,.8);color:var(--gold);
  transition:background-color .18s ease,color .18s ease;
}
.nav-toggle:hover{background:rgba(212,175,55,.14);color:var(--gold-warm)}
.nav-toggle-bars{position:relative;display:block;width:20px;height:2px;background:currentColor;transition:background-color .2s ease}
.nav-toggle-bars::before,.nav-toggle-bars::after{
  content:"";position:absolute;left:0;width:20px;height:2px;background:currentColor;
  transition:transform .22s ease;
}
.nav-toggle-bars::before{top:-6px}
.nav-toggle-bars::after{top:6px}
.site-header[data-open="true"] .nav-toggle-bars{background:transparent}
.site-header[data-open="true"] .nav-toggle-bars::before{transform:translateY(6px) rotate(45deg)}
.site-header[data-open="true"] .nav-toggle-bars::after{transform:translateY(-6px) rotate(-45deg)}

/* ---------- 8. 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 19px;border-radius:var(--r-md);border:1px solid transparent;
  font-family:var(--font-body);font-size:14px;font-weight:600;line-height:1.2;
  white-space:nowrap;cursor:pointer;
  transition:transform .18s ease,filter .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn:hover{transform:translateY(-1px)}
.btn-gold{background:linear-gradient(160deg,var(--gold-warm),var(--gold) 45%,#b8912b);color:#08152b;box-shadow:var(--shadow-gold)}
.btn-gold:hover{filter:brightness(1.07)}
.btn-coral{background:linear-gradient(160deg,var(--coral),#e2502f);color:var(--white);box-shadow:0 16px 34px -20px rgba(255,107,74,.9)}
.btn-ghost{border-color:var(--line-gold);background:rgba(212,175,55,.09);color:var(--gold-warm)}
.btn-ghost:hover{background:rgba(212,175,55,.18);color:var(--white)}
.btn-quiet{border-color:var(--line);background:rgba(140,163,184,.09);color:var(--mist)}
.btn-quiet:hover{border-color:var(--line-strong);background:rgba(140,163,184,.16);color:var(--white)}
.btn-sm{padding:8px 14px;font-size:13px;border-radius:9px}
.copy-btn{
  padding:5px 11px;border:1px solid var(--line);border-radius:var(--r-pill);
  background:rgba(140,163,184,.08);color:var(--steel);
  font-size:12px;font-family:var(--font-mono);
  transition:color .18s ease,border-color .18s ease,background-color .18s ease;
}
.copy-btn:hover{color:var(--gold-warm);border-color:var(--line-gold);background:rgba(212,175,55,.12)}
.copy-btn[data-state="copied"]{color:var(--ink-deep);background:var(--gold);border-color:var(--gold)}

/* ---------- 9. 页脚 ---------- */
.site-footer{
  position:relative;z-index:1;
  margin-top:clamp(56px,9vw,110px);
  border-top:1px solid var(--line-gold);
  background:
    linear-gradient(180deg,rgba(212,175,55,.09),rgba(6,20,40,0) 26%),
    linear-gradient(180deg,rgba(6,20,40,.55),rgba(6,20,40,.98) 46%),
    linear-gradient(100deg,#061428 0%,#0A1E3C 58%,#08182f 100%);
}
.site-footer::before{
  content:"";display:block;height:6px;
  background-image:repeating-linear-gradient(90deg,rgba(212,175,55,.5) 0 1px,transparent 1px 16px);
  opacity:.45;
}
.footer-top{
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);
  gap:clamp(20px,4vw,56px);align-items:end;
  padding-block:clamp(34px,5vw,64px) clamp(20px,3vw,34px);
}
.footer-wordmark{
  font-family:var(--font-display);font-weight:800;
  font-size:clamp(40px,8.4vw,104px);line-height:.9;letter-spacing:-.03em;
  color:rgba(212,175,55,.12);
  -webkit-text-stroke:1px rgba(212,175,55,.5);
}
.footer-lead{display:flex;flex-direction:column;gap:10px;padding-bottom:6px}
.footer-heading{
  font-family:var(--font-display);font-weight:800;font-size:clamp(19px,2.2vw,26px);
  color:var(--white);letter-spacing:-.01em;
}
.footer-note{font-size:13.5px;color:var(--steel);line-height:1.75;max-width:52ch}
.footer-note--meta{font-family:var(--font-mono);font-size:12px;color:var(--dim);letter-spacing:.02em}

.footer-grid{
  display:grid;grid-template-columns:1fr 1fr 1.4fr;
  gap:clamp(22px,3vw,44px);
  padding-block:clamp(22px,3vw,36px);
  border-top:1px solid var(--line);
}
.footer-col{display:flex;flex-direction:column;gap:14px;min-width:0}
.footer-col-title{
  font-family:var(--font-mono);font-size:11.5px;font-weight:600;letter-spacing:.2em;
  color:var(--gold);display:flex;align-items:center;gap:9px;
}
.footer-col-title::before{content:"";width:14px;height:2px;background:var(--coral);flex:0 0 auto}
.footer-list{display:flex;flex-direction:column;gap:9px}
.footer-link{
  display:inline-block;font-size:14px;color:var(--mist);
  padding-left:11px;border-left:2px solid rgba(140,163,184,.2);
  transition:color .18s ease,border-color .18s ease,padding-left .18s ease;
}
.footer-link:hover{color:var(--gold-warm);border-color:var(--gold);padding-left:15px}

.footer-contact{display:flex;flex-direction:column}
.contact-row{
  display:grid;grid-template-columns:74px minmax(0,1fr) auto;gap:10px;align-items:center;
  padding:11px 0;border-bottom:1px dashed rgba(140,163,184,.18);
}
.contact-row--wide{grid-template-columns:74px minmax(0,1fr)}
.contact-label{font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;color:var(--dim)}
.contact-value{font-family:var(--font-mono);font-size:13.5px;color:var(--mist);word-break:break-word}
.contact-row--wide .contact-value{font-family:var(--font-body);font-size:13.5px;color:var(--steel);line-height:1.6}

.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px 26px;align-items:center;justify-content:space-between;
  padding-block:18px 30px;border-top:1px solid var(--line);
}
.footer-legal{font-family:var(--font-mono);font-size:12.5px;color:var(--steel)}
.footer-meta{font-size:12.5px;color:var(--dim)}

/* ---------- 10. 通用内容组件 ---------- */
.breadcrumbs{padding-block:16px 4px}
.breadcrumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-family:var(--font-mono);font-size:12.5px;color:var(--steel)}
.breadcrumbs li{display:flex;align-items:center;gap:8px}
.breadcrumbs li + li::before{content:"/";color:var(--dim)}
.breadcrumbs a:hover{color:var(--gold-warm)}
.breadcrumbs [aria-current="page"]{color:var(--gold-warm)}

.card{
  position:relative;
  padding:clamp(18px,2vw,26px);
  border:1px solid var(--line);border-radius:var(--r-lg);
  background:linear-gradient(165deg,rgba(27,42,68,.92),rgba(10,30,60,.86));
  box-shadow:var(--shadow-card);
}
.card--glass{
  background:var(--glass);
  -webkit-backdrop-filter:blur(12px) saturate(130%);
  backdrop-filter:blur(12px) saturate(130%);
  border-color:rgba(212,175,55,.22);
}
.card--gold{
  border-color:var(--line-gold);
  background:linear-gradient(165deg,rgba(212,175,55,.16),rgba(10,30,60,.8));
}
.card-title{font-family:var(--font-display);font-size:clamp(18px,2vw,22px);margin-bottom:8px}

.stat{display:flex;flex-direction:column;gap:4px}
.stat-value{font-family:var(--font-mono);font-size:clamp(24px,3vw,34px);color:var(--gold-warm);font-variant-numeric:tabular-nums}
.stat-label{font-size:11.5px;letter-spacing:.14em;color:var(--steel)}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 11px;border-radius:var(--r-pill);
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.04em;
  border:1px solid var(--line);color:var(--steel);background:rgba(140,163,184,.09);
}
.badge--gold{border-color:var(--line-gold);color:var(--gold-warm);background:rgba(212,175,55,.12)}
.badge--coral{border-color:rgba(255,107,74,.5);color:#FFB5A2;background:rgba(255,107,74,.14)}
.tag{
  display:inline-block;padding:3px 9px;border-radius:6px;
  font-size:11.5px;color:var(--steel);border:1px dashed var(--line-strong);
}
.pill{
  display:inline-flex;align-items:center;padding:6px 13px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(6,20,40,.5);
  font-family:var(--font-mono);font-size:12px;color:var(--steel);
}

/* 分段切换 */
.tabs{display:block}
.tab-list{
  display:flex;flex-wrap:wrap;gap:8px;padding:6px;
  border:1px solid var(--line);border-radius:14px;
  background:rgba(6,20,40,.55);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
}
.tab{
  padding:10px 17px;border:1px solid transparent;border-radius:10px;
  font-size:14px;font-weight:600;color:var(--steel);
  transition:background-color .18s ease,color .18s ease;
}
.tab:hover{color:var(--white);background:rgba(140,163,184,.13)}
.tab[aria-selected="true"]{
  background:linear-gradient(180deg,rgba(212,175,55,.95),rgba(184,145,43,.86));
  color:#08152b;box-shadow:var(--shadow-gold);
}
.tab-panel{margin-top:clamp(16px,2.4vw,26px)}
.tab-panel[hidden]{display:none}

/* 数据表（积分榜 / 权益对照） */
.data-table{font-variant-numeric:tabular-nums}
.data-table caption{
  text-align:left;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.2em;
  color:var(--gold);padding-bottom:10px;
}
.data-table th{
  text-align:left;padding:10px 12px;
  font-family:var(--font-mono);font-size:11px;font-weight:600;letter-spacing:.12em;color:var(--steel);
  border-bottom:1px solid var(--line-gold);
}
.data-table td{padding:12px;font-size:14.5px;border-bottom:1px solid var(--line);color:var(--mist)}
.data-table tbody tr:nth-child(even){background:rgba(140,163,184,.06)}
.data-table tbody tr:hover{background:rgba(212,175,55,.09)}
.data-table .num{font-family:var(--font-mono);color:var(--gold-warm)}
.data-table .up{color:var(--coral)}
.data-table .flat{color:var(--steel)}

/* 页内目录 */
.anchor-nav{display:flex;flex-wrap:wrap;gap:8px}
.anchor-nav a{
  display:inline-block;padding:6px 13px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(6,20,40,.45);
  font-family:var(--font-mono);font-size:12px;color:var(--steel);
  transition:color .18s ease,border-color .18s ease,background-color .18s ease;
}
.anchor-nav a:hover,.anchor-nav a[aria-current="true"]{
  color:var(--gold-warm);border-color:var(--line-gold);background:rgba(212,175,55,.12);
}

/* 长文 */
.prose{max-width:74ch;font-size:16px;color:var(--mist)}
.prose > * + *{margin-top:1.05em}
.prose h2{font-size:clamp(22px,2.6vw,30px);margin-top:1.7em}
.prose h3{font-size:19px;margin-top:1.5em}
.prose ul{list-style:disc;padding-left:1.25em}
.prose ol{list-style:decimal;padding-left:1.4em}
.prose li + li{margin-top:.4em}
.prose strong{color:var(--white)}
.prose a{color:var(--gold-warm);text-decoration:underline;text-decoration-color:rgba(212,175,55,.45);text-underline-offset:3px}
.prose blockquote{
  padding:12px 0 12px 18px;border-left:2px solid var(--gold);
  font-family:var(--font-serif);color:var(--mist);
}

/* 媒体容器（页面阶段放置图片 / SVG） */
.figure{margin:0}
.figure-frame{
  position:relative;aspect-ratio:16/9;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--r-lg);
  background:
    radial-gradient(120% 90% at 78% 6%,rgba(212,175,55,.16),transparent 58%),
    linear-gradient(160deg,rgba(140,163,184,.20),rgba(6,20,40,.82));
}
.figure-frame--wide{aspect-ratio:21/9}
.figure-frame--tall{aspect-ratio:4/5}
.figure-frame--square{aspect-ratio:1/1}
.figure-frame > img,.figure-frame > svg{width:100%;height:100%;object-fit:cover}
.figure-frame::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:36%;pointer-events:none;
  background-image:
    repeating-linear-gradient(90deg,rgba(140,163,184,.20) 0 14px,transparent 14px 30px),
    repeating-linear-gradient(90deg,rgba(140,163,184,.13) 0 6px,transparent 6px 44px);
  background-repeat:repeat-x;
  background-size:100% 58%,100% 100%;
  background-position:0 100%,8px 100%;
  -webkit-mask-image:linear-gradient(to top,#000,transparent);
  mask-image:linear-gradient(to top,#000,transparent);
}
.figure-caption{margin-top:10px;font-size:12.5px;color:var(--steel);line-height:1.65}

/* 工具类 */
.visually-hidden{
  position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
}
.text-gold{color:var(--gold-warm)}
.text-coral{color:var(--coral)}
.text-steel{color:var(--steel)}

/* 阅读进度条（由 JS 注入） */
.scroll-progress{
  position:fixed;top:0;left:0;right:0;height:3px;z-index:90;
  background:rgba(140,163,184,.16);pointer-events:none;
  opacity:0;transition:opacity .3s ease;
}
.scroll-progress[data-active="true"]{opacity:1}
.scroll-progress > span{
  display:block;height:100%;width:100%;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--gold),var(--coral));
}

/* 显现动效 */
.js-ready [data-reveal]{opacity:0;transform:translateY(16px)}
.js-ready [data-reveal].is-revealed{opacity:1;transform:none;transition:opacity .55s ease,transform .55s ease}

/* ---------- 11. 响应式 ---------- */
@media (max-width:1180px){
  .brand-tag{display:none}
}
@media (max-width:1080px){
  .nav-toggle{display:grid}
  .header-console{grid-template-columns:minmax(0,1fr) auto;row-gap:12px;padding-block:11px 13px}
  .site-nav{
    grid-column:1 / -1;justify-self:stretch;order:3;
    display:none;
  }
  .site-header[data-open="true"] .site-nav{display:block;animation:nav-drop .22s ease both}
  @keyframes nav-drop{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}
  .nav-list{flex-direction:column;align-items:stretch;padding:8px;border-radius:var(--r-lg)}
  .nav-link{padding:13px 15px;font-size:16px;border-radius:10px}
  .header-actions{
    grid-column:1 / -1;justify-self:stretch;order:4;
    justify-content:space-between;flex-wrap:wrap;gap:12px;
  }
  .header-status{flex:1 1 auto;justify-content:space-between}
  .header-actions .btn{flex:0 0 auto}
}
@media (max-width:960px){
  .span-3,.span-4,.span-5,.span-6,.span-7,.span-8,.span-9,.span-10,.span-11{grid-column:span 12}
  .footer-top{grid-template-columns:minmax(0,1fr);align-items:start}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-col--contact{grid-column:1 / -1}
}
@media (max-width:720px){
  :root{--pad-x:clamp(16px,5vw,28px)}
  body{font-size:15.5px}
  .brand-mark{width:38px;height:38px;font-size:20px}
  .brand-name{font-size:17px}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .contact-row{grid-template-columns:minmax(0,1fr);gap:4px}
  .contact-row .copy-btn{justify-self:start}
  .data-table th,.data-table td{padding:10px 8px;font-size:13.5px}
}
@media (max-width:420px){
  .header-status{display:none}
  .header-actions .btn{width:100%}
}

/* ---------- 12. 无障碍与打印 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms!important;
    animation-iteration-count:1!important;
    transition-duration:.001ms!important;
  }
  .js-ready [data-reveal]{opacity:1!important;transform:none!important}
  .btn:hover{transform:none}
}
@media print{
  body{background:#fff;color:#111}
  .site-header,.scroll-progress,.skip-link{display:none!important}
  .site-footer{border-top:1px solid #999;background:#fff;color:#333}
}