/* ===== 至尊信誉9172 · 共享样式 /assets/site.css ===== */

:root{
  --ink:#0B1633;
  --indigo-deep:#14224A;
  --indigo-mid:#1F3266;
  --gold:#C7A03A;
  --gold-soft:#E7CF8C;
  --cinnabar:#B63B2E;
  --jade-a:#2E7D74;
  --jade-b:#86C9B8;
  --paper:#F4EFE4;
  --index-gray:#8B93A7;
  --black:#10131A;

  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --font-sans:"Noto Sans SC","Source Han Sans SC","Inter","Helvetica Neue",Arial,sans-serif;
  --font-mono:"JetBrains Mono","IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --w-wide:1280px;
  --w-read:820px;
  --w-ultra:1480px;
  --gutter:clamp(18px,4vw,32px);
  --radius-card:16px;
  --radius-pill:999px;
  --ease:cubic-bezier(.2,.7,.2,1);
  --shadow-float:0 26px 60px rgba(4,9,22,.55);
}

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

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

body{
  margin:0;
  min-height:100vh;
  overflow-x:hidden;
  background:
    radial-gradient(1100px 560px at 10% -12%, rgba(31,50,102,.85), transparent 62%),
    radial-gradient(880px 520px at 100% 6%, rgba(46,125,116,.20), transparent 64%),
    var(--ink);
  color:var(--paper);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

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

h1,h2,h3,h4{font-family:var(--font-serif);font-weight:700;letter-spacing:-.01em;line-height:1.26}

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

.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
}

.skip-link{
  position:fixed;left:16px;top:10px;z-index:200;
  transform:translateY(-180%);
  background:var(--gold-soft);color:var(--ink);
  padding:10px 18px;border-radius:10px;
  font-size:14px;font-weight:700;
  transition:transform .2s var(--ease);
}
.skip-link:focus{transform:translateY(0)}

/* ===== 头部 ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:linear-gradient(180deg, rgba(11,22,51,.97) 0%, rgba(11,22,51,.90) 100%);
  border-bottom:1px solid var(--indigo-mid);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  transition:box-shadow .24s var(--ease);
}
.site-header[data-scrolled]{box-shadow:0 16px 38px rgba(4,9,22,.55)}

.scroll-progress{
  position:absolute;left:0;bottom:-1px;height:2px;width:0;
  background:linear-gradient(90deg,var(--gold),var(--gold-soft),var(--cinnabar));
  pointer-events:none;
}

.header-rail{
  width:min(calc(100% - var(--gutter) * 2), var(--w-wide));
  margin-inline:auto;
  display:flex;align-items:center;gap:clamp(12px,2vw,26px);
  padding-block:14px;
  transition:padding .24s var(--ease);
}
.site-header[data-scrolled] .header-rail{padding-block:8px}

.brand{
  display:flex;align-items:center;gap:10px;
  flex:0 0 auto;border-radius:12px;
}
.brand-seal{
  width:42px;height:42px;flex:0 0 42px;
  display:grid;place-items:center;
  border:1.5px solid var(--gold);border-radius:9px;
  background:linear-gradient(150deg, rgba(199,160,58,.24), rgba(199,160,58,.04));
  box-shadow:inset 0 0 0 1px rgba(231,207,140,.16);
  color:var(--gold-soft);
  font-family:var(--font-serif);font-size:20px;font-weight:700;line-height:1;
  transition:transform .16s var(--ease);
}
.brand:active .brand-seal{transform:scale(.96)}
.brand-text{display:flex;flex-direction:column;gap:1px;min-width:0}
.brand-name{
  font-family:var(--font-serif);font-size:17px;font-weight:700;
  letter-spacing:.01em;color:var(--paper);white-space:nowrap;
}
.brand-sub{
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.09em;
  color:var(--index-gray);white-space:nowrap;
}

.nav-capsule{flex:1 1 auto;display:flex;justify-content:center;min-width:0}
.nav-list{
  display:flex;align-items:center;gap:2px;
  padding:5px;max-width:100%;
  background:rgba(20,34,74,.92);
  border:1px solid var(--indigo-mid);
  border-radius:var(--radius-pill);
  box-shadow:0 12px 28px rgba(4,9,22,.42);
  overflow-x:auto;scrollbar-width:none;
}
.nav-list::-webkit-scrollbar{display:none}
.nav-link{
  display:block;padding:8px 15px;border-radius:var(--radius-pill);
  font-size:14.5px;font-weight:500;color:#C3CBE0;white-space:nowrap;
  transition:color .18s var(--ease),background .18s var(--ease);
}
.nav-link:hover{color:var(--gold-soft);background:rgba(199,160,58,.12)}
.nav-link[aria-current="page"]{
  color:var(--ink);font-weight:700;
  background:linear-gradient(135deg,var(--gold-soft),var(--gold));
}

.header-tools{
  display:flex;align-items:center;gap:10px;
  margin-left:auto;flex:0 0 auto;
}
.tool-link{
  display:inline-flex;align-items:center;
  padding:9px 16px;border-radius:var(--radius-pill);
  border:1px solid rgba(199,160,58,.6);
  background:linear-gradient(135deg, rgba(199,160,58,.18), rgba(199,160,58,.05));
  color:var(--gold-soft);
  font-size:13.5px;font-weight:600;letter-spacing:.02em;white-space:nowrap;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.tool-link:hover{background:var(--gold-soft);color:var(--ink);border-color:var(--gold-soft)}

.tool-btn{
  padding:9px 14px;border-radius:var(--radius-pill);
  border:1px solid var(--indigo-mid);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;
  color:#AEB6CB;white-space:nowrap;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.tool-btn:hover{color:var(--gold-soft);border-color:var(--gold)}

.nav-toggle{
  display:none;
  width:42px;height:42px;border-radius:12px;
  border:1px solid var(--indigo-mid);
  background:rgba(20,34,74,.7);
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
  transition:border-color .18s var(--ease);
}
.nav-toggle:hover{border-color:var(--gold)}
.nav-toggle-bar{
  width:18px;height:2px;border-radius:2px;
  background:var(--gold-soft);
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ===== 页脚 ===== */
.site-footer{
  position:relative;
  margin-top:clamp(56px,8vw,110px);
  background:linear-gradient(180deg, rgba(20,34,74,.55), rgba(11,22,51,.98) 58%);
  border-top:1px solid var(--indigo-mid);
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--jade-a),var(--jade-b) 42%, rgba(199,160,58,.7) 76%, transparent);
}
.footer-inner{
  width:min(calc(100% - var(--gutter) * 2), var(--w-wide));
  margin-inline:auto;
  padding-block:clamp(40px,6vw,66px) 28px;
}
.footer-top{
  display:grid;gap:clamp(24px,3vw,42px);
  grid-template-columns:1.5fr 1fr 1fr 1.1fr;
}
.footer-brand{display:flex;flex-direction:column;gap:9px}
.footer-seal{
  width:52px;height:52px;display:grid;place-items:center;
  border:1.5px dashed rgba(199,160,58,.75);border-radius:12px;
  background:rgba(199,160,58,.08);
  color:var(--gold-soft);
  font-family:var(--font-serif);font-size:24px;font-weight:700;line-height:1;
}
.footer-brand-name{font-family:var(--font-serif);font-size:19px;font-weight:700;color:var(--paper)}
.footer-brand-line{font-size:13.5px;color:var(--index-gray);line-height:1.7}
.footer-col{display:flex;flex-direction:column;gap:12px}
.footer-col-title{
  font-family:var(--font-mono);font-size:11.5px;font-weight:500;
  letter-spacing:.16em;color:var(--gold);
}
.footer-links{display:flex;flex-direction:column;gap:8px}
.footer-links a{
  display:inline-block;width:fit-content;padding-bottom:2px;
  font-size:14px;color:#B7BFD3;
  border-bottom:1px solid transparent;
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.footer-links a:hover{color:var(--gold-soft);border-bottom-color:var(--gold)}
.footer-contact{
  grid-column:1 / -1;
  display:flex;flex-direction:column;gap:8px;
  padding-top:22px;border-top:1px solid var(--indigo-mid);
}
.footer-contact-line{
  display:flex;flex-wrap:wrap;gap:10px;align-items:baseline;
  font-size:13.5px;color:#B7BFD3;
}
.footer-label{
  font-family:var(--font-mono);font-size:11px;letter-spacing:.12em;color:var(--gold);
}
.footer-note{font-size:12.5px;color:var(--index-gray);max-width:66ch}
.footer-bottom{
  margin-top:28px;padding-top:18px;
  border-top:1px solid var(--indigo-mid);
  display:flex;flex-wrap:wrap;gap:10px 24px;
  align-items:center;justify-content:space-between;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.07em;
  color:var(--index-gray);
}
.footer-legal{color:#9AA3B8}
.footer-meta{margin:0}

/* ===== 容器与区块 ===== */
.container{width:min(calc(100% - var(--gutter) * 2), var(--w-wide));margin-inline:auto}
.container--read{width:min(calc(100% - var(--gutter) * 2), var(--w-read));margin-inline:auto}
.container--wide{width:min(calc(100% - var(--gutter) * 2), var(--w-ultra));margin-inline:auto}

.section{padding-block:clamp(44px,7vw,96px)}
.section--deep{background:var(--indigo-deep)}
.section--paper{background:var(--paper);color:var(--black)}
.section--alt{
  background:linear-gradient(120deg, rgba(46,125,116,.24), rgba(134,201,184,.07) 58%, transparent);
}
.section-head{display:flex;flex-direction:column;gap:10px;margin-bottom:clamp(24px,3vw,40px)}
.eyebrow{
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.2em;
  text-transform:uppercase;color:var(--gold);
}
.section-title{font-size:clamp(24px,3.4vw,36px)}
.section-sub{font-size:15px;color:var(--index-gray);max-width:62ch}

/* ===== 文本 ===== */
.lede{font-size:clamp(17px,2vw,20px);line-height:1.75;color:#D7DDEC;max-width:62ch}
.prose{max-width:72ch;font-size:16.5px;line-height:1.8}
.prose > * + *{margin-top:1.1em}
.prose h2{font-size:clamp(20px,2.4vw,26px)}
.prose h3{font-size:clamp(17px,2vw,20px)}
.prose ul{display:flex;flex-direction:column;gap:.5em}
.prose ul li{position:relative;padding-left:1.2em}
.prose ul li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:7px;height:7px;border:1px solid var(--gold);transform:rotate(45deg);
}
.quiet{font-size:13px;color:var(--index-gray)}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-pill);
  border:1px solid transparent;
  font-size:15px;font-weight:600;
  transition:background .18s var(--ease),color .18s var(--ease),
             border-color .18s var(--ease),transform .16s var(--ease);
}
.btn:active{transform:scale(.97)}
.btn--gold{background:linear-gradient(135deg,var(--gold-soft),var(--gold));color:var(--ink)}
.btn--gold:hover{background:linear-gradient(135deg,#F3E1AB,var(--gold-soft))}
.btn--ghost{
  border-color:var(--indigo-mid);color:var(--paper);
  background:rgba(20,34,74,.55);
}
.btn--ghost:hover{border-color:var(--gold);color:var(--gold-soft)}
.btn--cinnabar{background:var(--cinnabar);color:#fff}
.btn--cinnabar:hover{background:#C9483A}

/* ===== 标签 ===== */
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 10px;border-radius:var(--radius-pill);
  border:1px solid var(--indigo-mid);
  background:rgba(31,50,102,.42);
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.06em;
  color:#B7BFD3;
}
.tag--gold{border-color:rgba(199,160,58,.55);background:rgba(199,160,58,.1);color:var(--gold-soft)}
.tag--jade{border-color:rgba(134,201,184,.45);background:rgba(46,125,116,.2);color:var(--jade-b)}
.tag--new{border-color:transparent;background:var(--cinnabar);color:#fff}

/* ===== 卡片 / 面板 ===== */
.card{
  position:relative;
  display:flex;flex-direction:column;gap:10px;
  padding:clamp(20px,2.4vw,28px);
  border:1px solid var(--indigo-mid);border-radius:var(--radius-card);
  background:rgba(20,34,74,.78);
  transition:border-color .2s var(--ease),transform .2s var(--ease);
}
.card:hover{border-color:rgba(199,160,58,.6);transform:translateY(-2px)}
.card-title{font-family:var(--font-serif);font-size:18px;font-weight:700}
.card-text{font-size:14.5px;line-height:1.7;color:#B7BFD3}

.panel{
  padding:clamp(20px,3vw,34px);
  border:1px solid var(--indigo-mid);border-radius:var(--radius-card);
  background:var(--indigo-deep);
}
.panel--jade{background:linear-gradient(135deg, rgba(46,125,116,.42), rgba(20,34,74,.92))}
.panel--paper{background:var(--paper);color:var(--black);border-color:rgba(16,19,26,.12)}

.index-num{
  display:inline-flex;align-items:center;gap:6px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;color:var(--gold);
}
.index-num::before{content:"";width:14px;height:1px;background:var(--gold);opacity:.7}

.copy-num{
  padding:3px 9px;border-radius:8px;
  border:1px dashed rgba(199,160,58,.5);
  font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;
  color:var(--gold);
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.copy-num:hover{background:rgba(199,160,58,.14)}
.copy-num.is-copied{background:var(--jade-a);color:#fff;border-style:solid;border-color:transparent}

/* ===== 网格 ===== */
.grid{display:grid;gap:clamp(16px,2vw,24px)}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(280px,1fr))}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}
.grid--7-5{grid-template-columns:minmax(0,7fr) minmax(0,5fr)}
.grid--5-7{grid-template-columns:minmax(0,5fr) minmax(0,7fr)}

/* ===== 筛选 ===== */
.filter-bar{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.filter-pill{
  padding:7px 15px;border-radius:var(--radius-pill);
  border:1px solid var(--indigo-mid);
  background:rgba(20,34,74,.6);
  font-size:13.5px;color:#B7BFD3;
  transition:background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.filter-pill:hover{color:var(--gold-soft);border-color:var(--gold)}
.filter-pill[aria-pressed="true"]{
  background:linear-gradient(135deg,var(--gold-soft),var(--gold));
  color:var(--ink);border-color:var(--gold-soft);font-weight:600;
}
.filter-count{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--index-gray);
}
.filter-empty{font-size:14px;color:var(--index-gray)}

/* ===== 面包屑 ===== */
.breadcrumb{
  display:flex;flex-wrap:wrap;gap:0 8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;
  color:var(--index-gray);
}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li + li::before{content:"/";color:var(--indigo-mid)}
.breadcrumb a:hover{color:var(--gold-soft)}

/* ===== 数据 / 时间轴 ===== */
.stat{display:flex;flex-direction:column;gap:4px}
.stat-value{
  font-family:var(--font-mono);font-size:clamp(22px,3vw,30px);
  line-height:1.1;letter-spacing:.04em;color:var(--gold-soft);
}
.stat-label{font-size:13px;color:var(--index-gray)}

.timeline{position:relative;display:flex;flex-direction:column;gap:22px;padding-left:26px}
.timeline::before{
  content:"";position:absolute;left:6px;top:6px;bottom:6px;width:1px;
  background:linear-gradient(180deg,var(--gold),var(--indigo-mid));
}
.timeline-item{position:relative}
.timeline-item::before{
  content:"";position:absolute;left:-24px;top:8px;
  width:9px;height:9px;border-radius:50%;
  background:var(--ink);border:2px solid var(--gold);
}
.timeline-date{
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.1em;color:var(--gold);
}

/* ===== 装饰与杂项 ===== */
.divider{height:1px;border:0;margin-block:clamp(24px,4vw,48px);
  background:linear-gradient(90deg,var(--indigo-mid),transparent)}
.jade-bar{height:4px;border-radius:var(--radius-pill);
  background:linear-gradient(90deg,var(--jade-a),var(--jade-b));margin-bottom:18px}
.seal-stamp{
  display:inline-grid;place-items:center;
  width:64px;height:64px;border-radius:14px;
  border:2px solid var(--cinnabar);background:rgba(182,59,46,.1);
  color:var(--cinnabar);
  font-family:var(--font-serif);font-size:26px;font-weight:700;line-height:1;
  transition:transform .16s var(--ease);
}
.seal-stamp:active{transform:scale(.96)}
.blueprint{position:relative}
.blueprint::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(139,147,167,.09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(139,147,167,.09) 1px, transparent 1px);
  background-size:56px 56px;
}
.note{
  padding:12px 16px;border-left:3px solid var(--cinnabar);
  border-radius:0 12px 12px 0;
  background:rgba(182,59,46,.1);
  font-size:14px;color:#E4DCD2;
}
.note--gold{border-left-color:var(--gold);background:rgba(199,160,58,.1)}
.quick-list{display:flex;flex-direction:column;gap:10px}
.quick-list li{display:flex;gap:10px;align-items:baseline;font-size:14.5px;color:#B7BFD3}

/* ===== 图片容器基础规则 ===== */
.media-frame{
  position:relative;width:100%;
  aspect-ratio:16 / 10;
  overflow:hidden;border-radius:var(--radius-card);
  border:1px solid var(--indigo-mid);background:var(--indigo-deep);
}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(244,239,228,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(244,239,228,.06) 1px, transparent 1px);
  background-size:44px 44px;
}
.media-frame figcaption{
  position:absolute;left:0;right:0;bottom:0;z-index:1;
  padding:14px 16px;font-size:12.5px;color:#D7DDEC;
  background:linear-gradient(180deg, transparent, rgba(11,22,51,.92));
}
.media-frame--hero{aspect-ratio:21 / 9}
.media-frame--square{aspect-ratio:1 / 1}
.media-frame--tall{aspect-ratio:3 / 4}

/* ===== 渐显 ===== */
[data-reveal]{
  transition:opacity .32s var(--ease),transform .32s var(--ease);
}
.js [data-reveal]{opacity:0;transform:translateY(12px)}
.js [data-reveal].is-visible{opacity:1;transform:none}

/* ===== 响应式 ===== */
@media (max-width:1180px){
  .tool-btn{display:none}
}

@media (max-width:1024px){
  .nav-toggle{display:flex}
  .nav-capsule{
    position:absolute;left:var(--gutter);right:var(--gutter);
    top:calc(100% + 8px);
    display:none;flex-direction:column;
    max-height:calc(100vh - 150px);overflow-y:auto;
    padding:10px;
    background:var(--indigo-deep);
    border:1px solid var(--indigo-mid);
    border-radius:18px;
    box-shadow:var(--shadow-float);
  }
  .nav-capsule[data-open]{display:flex}
  .nav-list{
    flex-direction:column;align-items:stretch;gap:4px;
    padding:0;overflow:visible;
    background:none;border:0;box-shadow:none;
  }
  .nav-link{padding:12px 14px;border-radius:12px;font-size:15.5px}
}

@media (max-width:900px){
  .footer-top{grid-template-columns:1fr 1fr}
  .grid--7-5,.grid--5-7{grid-template-columns:1fr}
}

@media (max-width:620px){
  .footer-top{grid-template-columns:1fr}
  .header-rail{gap:10px}
  .brand-seal{width:38px;height:38px;flex-basis:38px;font-size:18px;border-radius:8px}
  .brand-name{font-size:15.5px}
  .brand-sub{display:none}
  .tool-link{padding:8px 13px;font-size:13px}
  .nav-toggle{width:38px;height:38px}
}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
  }
  .js [data-reveal]{opacity:1;transform:none}
  .card:hover{transform:none}
}