/* ==========================================================
   博王CN 服务索引 · 共享样式表 /assets/site.css
   靛蓝刊头 + 索引侧栏 + 纸白正文 + 琥珀节点 + 青瓷状态
   ========================================================== */

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0}
h1,h2,h3,h4,h5,h6,p,figure,blockquote,dl,dd,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
img,svg{display:block;max-width:100%}
button{font:inherit;color:inherit;background:none;border:0}
table{border-collapse:collapse;width:100%}
a{color:inherit}

/* ---------- tokens ---------- */
:root{
  --indigo:#1B2A4A;
  --indigo-deep:#111C33;
  --amber:#D99A2B;
  --amber-light:#F2C46D;
  --amber-deep:#A9720E;
  --celadon:#4F8F7B;
  --celadon-light:#A9CFC2;
  --paper:#F7F2E8;
  --paper-dim:#EFE8DA;
  --warm:#D8D0C2;
  --ink:#20242B;
  --teal:#0F4C5C;

  --font-display:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --font-body:"Noto Serif SC","Source Han Serif SC","Songti SC",STSong,"SimSun",Georgia,serif;
  --font-mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;

  --wrap:1200px;
  --gutter:clamp(16px,4vw,44px);
  --rule:1px solid rgba(32,36,43,.16);
  --rule-dark:1px solid rgba(247,242,232,.18);
  --shadow:0 20px 44px -30px rgba(17,28,51,.6);
}

/* ---------- 中文排版基座 ---------- */
body{
  background-color:var(--paper);
  background-image:radial-gradient(rgba(32,36,43,.05) 1px, transparent 1px);
  background-size:4px 4px;
  background-attachment:fixed;
  color:var(--ink);
  font-family:var(--font-body);
  font-size:17px;
  line-height:1.8;
  letter-spacing:.01em;
  text-rendering:optimizeLegibility;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:800;line-height:1.22;letter-spacing:-.01em}
strong{font-weight:700}
::selection{background:rgba(242,196,109,.55);color:var(--indigo-deep)}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px;border-radius:2px}

/* ---------- 布局工具 ---------- */
.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:var(--gutter)}
.stack{display:flex;flex-direction:column;gap:var(--stack-gap,18px)}
.cluster{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(18px,3vw,36px)}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(16px,2.4vw,30px)}
.hairline{height:1px;border:0;margin:0;background:var(--warm)}
.muted{color:rgba(32,36,43,.62)}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.02em}

.with-rail{
  display:grid;
  grid-template-columns:minmax(190px,250px) minmax(0,1fr);
  gap:clamp(24px,4vw,56px);
  align-items:start;
}

/* ---------- 页头 ---------- */
.skip-link{
  position:absolute;top:-100px;left:50%;transform:translateX(-50%);
  z-index:200;padding:10px 20px;
  background:var(--amber);color:var(--indigo-deep);
  font-family:var(--font-display);font-size:14px;font-weight:700;letter-spacing:.08em;
  text-decoration:none;transition:top .2s ease;
}
.skip-link:focus{top:10px}

.read-progress{
  position:fixed;inset:0 0 auto 0;height:3px;z-index:120;pointer-events:none;
  background:rgba(27,42,74,.14);
}
.read-progress-bar{
  display:block;height:100%;width:100%;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--amber),var(--celadon));
  transition:transform .12s linear;
}

.site-header{position:relative;z-index:60;background:var(--indigo);color:var(--paper);font-family:var(--font-display)}

.header-topbar{background:var(--paper);color:rgba(32,36,43,.78);border-bottom:var(--rule)}
.topbar-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:6px 24px;min-height:38px;padding-block:6px}
.topbar-group{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.06em}
.topbar-group--end{margin-left:auto}
.topbar-label{font-family:var(--font-mono);font-size:10px;letter-spacing:.22em;color:var(--teal)}
.topbar-value{font-family:var(--font-mono);font-size:12.5px;font-weight:600;letter-spacing:.04em;color:var(--indigo-deep)}
.topbar-cta{
  margin-left:6px;padding:5px 13px;background:var(--amber);color:var(--indigo-deep);
  font-family:var(--font-display);font-size:12px;font-weight:700;letter-spacing:.14em;
  text-decoration:none;border:1px solid var(--amber);
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.topbar-cta:hover,.topbar-cta:focus-visible{background:var(--amber-light);border-color:var(--amber-light);color:var(--indigo-deep)}

.masthead{
  background-color:var(--indigo);
  background-image:radial-gradient(120% 150% at 50% -25%, rgba(79,143,123,.3), transparent 62%);
  padding-block:clamp(18px,3.2vw,34px) clamp(14px,2.4vw,26px);
  border-bottom:1px solid rgba(247,242,232,.14);
}
.masthead-inner{display:grid;grid-template-columns:minmax(0,1fr) auto minmax(0,1fr);align-items:center;gap:18px}
.masthead-center{text-align:center}
.masthead-meta{font-family:var(--font-mono);font-size:11px;letter-spacing:.26em;color:var(--celadon-light)}
.masthead-meta--end{text-align:right;color:rgba(242,196,109,.85)}
.brand{display:inline-flex;align-items:center;gap:14px;text-decoration:none}
.brand-mark{font-size:clamp(30px,5.6vw,54px);font-weight:900;letter-spacing:-.03em;line-height:1;color:var(--paper);transition:color .2s ease}
.brand-sub{
  padding-left:14px;border-left:1px solid rgba(242,196,109,.55);
  font-family:var(--font-mono);font-size:11px;letter-spacing:.34em;color:var(--amber-light);
  transition:color .2s ease;
}
.brand:hover .brand-mark,.brand:focus-visible .brand-mark{color:var(--amber-light)}
.brand:hover .brand-sub,.brand:focus-visible .brand-sub{color:var(--paper)}
.masthead-tagline{margin-top:10px;font-size:clamp(11px,1.3vw,13px);font-weight:500;letter-spacing:.28em;color:rgba(247,242,232,.66)}

.nav-band{background:var(--indigo-deep);border-top:1px solid rgba(247,242,232,.08)}
.nav-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:12px;min-height:54px}
.nav-list{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:clamp(2px,1vw,14px);counter-reset:nav}
.nav-link{
  position:relative;display:inline-flex;align-items:baseline;gap:6px;
  padding:14px 10px 12px;border-bottom:2px solid transparent;
  font-size:15px;font-weight:500;letter-spacing:.08em;color:rgba(247,242,232,.74);
  text-decoration:none;
  transition:color .2s ease,border-color .2s ease,background-color .2s ease;
}
.nav-link::before{
  counter-increment:nav;content:counter(nav,decimal-leading-zero);
  font-family:var(--font-mono);font-size:9.5px;letter-spacing:.1em;color:var(--amber);opacity:.75;
}
.nav-link:hover,.nav-link:focus-visible{color:var(--paper);border-bottom-color:var(--amber-light);background-color:rgba(242,196,109,.08)}
.nav-link[aria-current="page"]{color:var(--amber-light);border-bottom-color:var(--amber);background-color:rgba(217,154,43,.14)}

.nav-toggle{
  display:none;align-items:center;gap:10px;padding:9px 14px;
  border:1px solid rgba(247,242,232,.35);background:rgba(247,242,232,.06);color:var(--paper);
  font-family:var(--font-display);font-size:13px;letter-spacing:.16em;cursor:pointer;
  transition:border-color .2s ease,color .2s ease,background-color .2s ease;
}
.nav-toggle:hover,.nav-toggle:focus-visible{border-color:var(--amber-light);color:var(--amber-light)}
.nav-toggle-label{white-space:nowrap}
.nav-toggle-icon{position:relative;display:block;width:16px;height:10px}
.nav-toggle-icon::before,.nav-toggle-icon::after{content:"";position:absolute;left:0;right:0;height:2px;background:currentColor;transition:transform .25s ease}
.nav-toggle-icon::before{top:0}
.nav-toggle-icon::after{bottom:0}
.nav-toggle[aria-expanded="true"] .nav-toggle-icon::before{transform:translateY(4px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] .nav-toggle-icon::after{transform:translateY(-4px) rotate(-45deg)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--indigo);color:rgba(247,242,232,.82);font-family:var(--font-display);border-top:3px solid var(--amber)}
.footer-mast{background:var(--indigo-deep);border-bottom:1px solid rgba(247,242,232,.14)}
.footer-mast-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px 28px;padding-block:clamp(18px,2.6vw,26px)}
.footer-brand{display:inline-flex;align-items:center;gap:12px;margin:0}
.footer-brand-mark{font-size:clamp(22px,3vw,30px);font-weight:900;letter-spacing:-.02em;color:var(--paper)}
.footer-brand-sub{padding-left:12px;border-left:1px solid rgba(242,196,109,.55);font-family:var(--font-mono);font-size:10.5px;letter-spacing:.32em;color:var(--amber-light)}
.footer-note{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.2em;color:rgba(247,242,232,.6)}
.footer-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(24px,4vw,52px);padding-block:clamp(30px,4.4vw,52px)}
.footer-col-title{
  font-family:var(--font-mono);font-size:11px;font-weight:600;letter-spacing:.24em;
  color:var(--amber-light);margin-bottom:14px;
}
.footer-list{display:flex;flex-direction:column;gap:9px}
.footer-link{
  display:inline-block;font-size:14.5px;letter-spacing:.04em;color:rgba(247,242,232,.8);
  text-decoration:none;border-bottom:1px solid transparent;padding-bottom:1px;
  transition:color .2s ease,border-color .2s ease;
}
.footer-link:hover,.footer-link:focus-visible{color:var(--amber-light);border-bottom-color:var(--amber-light)}
.footer-contact{display:flex;flex-direction:column;gap:14px}
.contact-row{display:grid;grid-template-columns:minmax(64px,auto) minmax(0,1fr);gap:10px;align-items:start}
.contact-label{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.2em;color:var(--celadon-light);padding-top:3px}
.contact-value{font-size:14px;line-height:1.7;color:rgba(247,242,232,.86);letter-spacing:.02em}
.contact-value--mono{font-family:var(--font-mono);font-size:13.5px;letter-spacing:.04em}
.footer-bottom{background:var(--indigo-deep);border-top:1px solid rgba(247,242,232,.12)}
.footer-bottom-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px 24px;padding-block:14px}
.footer-legal{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.12em;color:rgba(247,242,232,.55)}
.footer-icp{color:rgba(242,196,109,.8)}

/* ---------- 章节与色带 ---------- */
.band{padding-block:clamp(40px,6vw,84px)}
.band--paper{background:var(--paper)}
.band--dim{background:var(--paper-dim);border-block:var(--rule)}
.band--celadon{background:rgba(169,207,194,.35);border-block:1px solid rgba(79,143,123,.35)}
.band--amber{background:rgba(242,196,109,.26);border-block:1px solid rgba(217,154,43,.38)}
.band--indigo{background:var(--indigo);color:rgba(247,242,232,.86)}
.band--deep{background:var(--indigo-deep);color:rgba(247,242,232,.86)}
.band--indigo .display,.band--deep .display,.band--indigo .section-title,.band--deep .section-title{color:var(--paper)}
.band--indigo .lede,.band--deep .lede,.band--indigo .muted,.band--deep .muted{color:rgba(247,242,232,.74)}
.band--indigo .num--price,.band--deep .num--price{color:var(--amber-light)}
.band--indigo .hairline,.band--deep .hairline{background:rgba(247,242,232,.2)}

/* ---------- 文字层级 ---------- */
.display{
  font-family:var(--font-display);font-weight:900;
  font-size:clamp(34px,5.6vw,64px);line-height:1.06;letter-spacing:-.03em;
  color:var(--indigo-deep);
}
.section-title{
  font-family:var(--font-display);font-weight:900;
  font-size:clamp(24px,3.2vw,36px);line-height:1.2;letter-spacing:-.015em;
  color:var(--indigo-deep);
}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--font-mono);font-size:11px;letter-spacing:.28em;color:var(--teal);
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--amber)}
.lede{font-size:clamp(16px,1.6vw,19px);line-height:1.85;color:rgba(32,36,43,.78);max-width:62ch}
.prose{max-width:68ch;font-size:17px;line-height:1.85}
.prose > * + *{margin-top:1.05em}
.prose h3{font-family:var(--font-display);font-size:clamp(19px,2.1vw,23px);font-weight:800;color:var(--indigo-deep);margin-top:1.7em}
.prose a{color:var(--teal);text-decoration:underline;text-decoration-thickness:1px;text-decoration-color:rgba(217,154,43,.65);text-underline-offset:3px;transition:color .2s ease,text-decoration-color .2s ease}
.prose a:hover,.prose a:focus-visible{color:var(--indigo-deep);text-decoration-color:var(--amber)}
.prose ul,.prose ol{display:flex;flex-direction:column;gap:.5em;padding-left:1.2em}
.prose ul{list-style:square}
.prose ol{list-style:decimal}
.prose li::marker{color:var(--amber)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border:1px solid transparent;border-radius:2px;
  font-family:var(--font-display);font-size:14.5px;font-weight:700;letter-spacing:.1em;
  text-decoration:none;cursor:pointer;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.btn:active{transform:translateY(1px)}
.btn--primary{background:var(--indigo);color:var(--paper);border-color:var(--indigo)}
.btn--primary:hover,.btn--primary:focus-visible{background:var(--indigo-deep);border-color:var(--amber);color:var(--amber-light)}
.btn--amber{background:var(--amber);color:var(--indigo-deep);border-color:var(--amber)}
.btn--amber:hover,.btn--amber:focus-visible{background:var(--amber-light);border-color:var(--amber-light)}
.btn--ghost{background:transparent;color:var(--indigo);border-color:rgba(27,42,74,.35)}
.btn--ghost:hover,.btn--ghost:focus-visible{border-color:var(--amber);color:var(--amber-deep);background:rgba(242,196,109,.18)}
.band--indigo .btn--ghost,.band--deep .btn--ghost{color:var(--paper);border-color:rgba(247,242,232,.4)}
.band--indigo .btn--ghost:hover,.band--deep .btn--ghost:hover,.band--indigo .btn--ghost:focus-visible,.band--deep .btn--ghost:focus-visible{color:var(--amber-light);border-color:var(--amber-light);background:rgba(242,196,109,.14)}

/* ---------- 面包屑 ---------- */
.breadcrumb{font-family:var(--font-mono);font-size:12px;letter-spacing:.08em;color:rgba(32,36,43,.7)}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li + li::before{content:"/";color:var(--amber)}
.breadcrumb a{text-decoration:none;border-bottom:1px solid transparent;transition:color .2s ease,border-color .2s ease}
.breadcrumb a:hover,.breadcrumb a:focus-visible{color:var(--indigo-deep);border-bottom-color:var(--amber)}
.breadcrumb [aria-current="page"]{color:var(--indigo-deep);font-weight:700}
.band--indigo .breadcrumb,.band--deep .breadcrumb{color:rgba(247,242,232,.7)}
.band--indigo .breadcrumb a:hover,.band--deep .breadcrumb a:hover{color:var(--amber-light)}

/* ---------- 服务索引侧栏 ---------- */
.rail{position:sticky;top:22px}
.rail-title{font-family:var(--font-mono);font-size:10.5px;letter-spacing:.26em;color:var(--teal);margin-bottom:12px}
.index-list{display:flex;flex-direction:column;gap:1px}
.index-link{
  display:block;padding:8px 10px 8px 14px;
  border-left:2px solid rgba(32,36,43,.16);
  font-family:var(--font-display);font-size:14px;font-weight:500;letter-spacing:.04em;
  color:rgba(32,36,43,.72);text-decoration:none;
  transition:color .2s ease,border-color .2s ease,background-color .2s ease;
}
.index-link:hover,.index-link:focus-visible{color:var(--indigo-deep);border-left-color:var(--celadon);background:rgba(169,207,194,.26)}
.index-link.is-active{
  color:var(--indigo-deep);font-weight:700;border-left-color:var(--amber);
  background:linear-gradient(90deg,rgba(242,196,109,.42),rgba(242,196,109,0));
}

/* ---------- 面板 ---------- */
.panel{padding:clamp(18px,2.6vw,28px);border-radius:2px}
.panel--sheet{background:var(--paper);border:1px solid var(--warm);box-shadow:var(--shadow)}
.panel--glass{
  background:rgba(247,242,232,.1);border:1px solid rgba(247,242,232,.22);
  color:var(--paper);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
}

/* ---------- 状态与标签 ---------- */
.status{
  display:inline-flex;align-items:center;gap:7px;padding:3px 10px;
  background:var(--celadon-light);color:#0d3a30;border-radius:2px;
  font-family:var(--font-display);font-size:12px;font-weight:600;letter-spacing:.06em;
}
.status::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--celadon)}
.status--busy{background:rgba(242,196,109,.5);color:#5c3d05}
.status--busy::before{background:var(--amber)}
.tag{
  display:inline-block;padding:3px 9px;
  border:1px solid rgba(217,154,43,.6);background:rgba(242,196,109,.2);
  color:var(--amber-deep);font-family:var(--font-mono);font-size:11.5px;letter-spacing:.08em;
}
.num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.num--price{color:var(--amber-deep);font-weight:700}

/* ---------- 表格 ---------- */
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--warm);background:var(--paper)}
.table{width:100%;min-width:520px;font-size:15px}
.table th,.table td{padding:12px 14px;text-align:left;vertical-align:top;border-bottom:1px solid var(--warm)}
.table thead th{
  background:var(--indigo);color:var(--paper);
  font-family:var(--font-display);font-size:12.5px;font-weight:700;letter-spacing:.1em;
  border-bottom-color:var(--indigo-deep);
}
.table tbody tr{transition:background-color .18s ease}
.table tbody tr:hover{background:rgba(242,196,109,.26)}
.table tbody tr:last-child th,.table tbody tr:last-child td{border-bottom:0}
.table--price .num{color:var(--amber-deep);font-weight:700;white-space:nowrap}
.band--indigo .table-scroll,.band--deep .table-scroll{border-color:rgba(247,242,232,.28)}

/* ---------- 时间轴 ---------- */
.steps{display:flex;flex-direction:column}
.step{position:relative;padding:0 0 26px 30px;border-left:1px solid var(--warm)}
.step:last-child{border-left-color:transparent;padding-bottom:0}
.step::before{
  content:"";position:absolute;left:-6px;top:8px;width:11px;height:11px;border-radius:50%;
  background:var(--paper);border:2px solid var(--amber);
  transition:background-color .2s ease,border-color .2s ease;
}
.step:hover::before{background:var(--amber-light)}
.step.is-done::before{background:var(--celadon);border-color:var(--celadon)}
.step-node{display:block;font-family:var(--font-mono);font-size:11.5px;letter-spacing:.18em;color:var(--teal)}
.step-title{font-family:var(--font-display);font-size:clamp(16px,1.8vw,19px);font-weight:800;color:var(--indigo-deep);margin-top:4px}
.step-time{display:inline-block;margin-top:6px;font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;color:var(--amber-deep)}
.step p{margin-top:6px;color:rgba(32,36,43,.76);font-size:15.5px}
.band--indigo .step,.band--deep .step{border-left-color:rgba(247,242,232,.24)}
.band--indigo .step::before,.band--deep .step::before{background:var(--indigo-deep);border-color:var(--amber-light)}
.band--indigo .step-title,.band--deep .step-title{color:var(--paper)}
.band--indigo .step-time,.band--deep .step-time{color:var(--amber-light)}
.band--indigo .step p,.band--deep .step p{color:rgba(247,242,232,.76)}

/* ---------- 手风琴 ---------- */
.acc{border-top:1px solid var(--warm)}
.acc-item{border-bottom:1px solid var(--warm)}
.acc-trigger{
  display:flex;align-items:flex-start;justify-content:space-between;gap:18px;width:100%;
  padding:16px 6px;text-align:left;cursor:pointer;
  font-family:var(--font-display);font-size:clamp(15.5px,1.7vw,17.5px);font-weight:700;letter-spacing:.02em;
  color:var(--indigo-deep);
  transition:color .2s ease,background-color .2s ease;
}
.acc-trigger:hover,.acc-trigger:focus-visible{color:var(--teal);background:rgba(242,196,109,.14)}
.acc-trigger::after{
  content:"+";flex:0 0 auto;font-family:var(--font-mono);font-size:19px;font-weight:400;
  line-height:1;color:var(--amber);transition:transform .25s ease,color .25s ease;
}
.acc-item[data-open] .acc-trigger::after{content:"–";color:var(--celadon)}
.acc-panel{display:grid;grid-template-rows:0fr;transition:grid-template-rows .3s ease}
.acc-item[data-open] .acc-panel{grid-template-rows:1fr}
.acc-body{overflow:hidden;color:rgba(32,36,43,.8);font-size:16px}
.acc-body > *{margin-bottom:16px}
.acc-body > *:first-child{margin-top:2px}

/* ---------- 响应式图像容器 ---------- */
.media-frame{
  position:relative;display:block;margin:0;overflow:hidden;
  background-color:var(--indigo);
  background-image:linear-gradient(135deg,var(--indigo) 0%,var(--teal) 70%,var(--celadon) 100%);
  border:1px solid rgba(32,36,43,.14);
}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-frame::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.22) 1px,transparent 1px);
  background-size:3px 3px;opacity:.35;mix-blend-mode:overlay;
}
.media-frame--wide{aspect-ratio:16/9}
.media-frame--4x3{aspect-ratio:4/3}
.media-frame--square{aspect-ratio:1/1}
.media-frame--portrait{aspect-ratio:3/4}
.media-caption{
  position:absolute;inset:auto 0 0 0;z-index:2;margin:0;padding:12px 16px 10px;
  background:linear-gradient(0deg,rgba(17,28,51,.88),rgba(17,28,51,0));
  color:var(--paper);font-family:var(--font-display);font-size:12.5px;letter-spacing:.06em;
}

/* ---------- 响应式 ---------- */
@media (max-width:1080px){
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-col--contact{grid-column:1 / -1}
}
@media (max-width:980px){
  .with-rail{grid-template-columns:minmax(0,1fr)}
  .rail{position:static;border-bottom:1px solid var(--warm);padding-bottom:16px}
  .index-list{flex-direction:row;flex-wrap:wrap;gap:6px}
  .index-link{border-left:0;border:1px solid rgba(32,36,43,.16);padding:6px 12px}
  .index-link.is-active{border-color:var(--amber);background:rgba(242,196,109,.35)}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:900px){
  .masthead-inner{grid-template-columns:minmax(0,1fr);gap:8px}
  .masthead-meta{display:none}
  .brand{flex-direction:column;align-items:center;gap:8px}
  .brand-sub{padding-left:0;border-left:0;border-top:1px solid rgba(242,196,109,.55);padding-top:6px}
  .nav-inner{justify-content:space-between;gap:10px;padding-block:10px}
  .nav-toggle{display:inline-flex}
  .site-nav{flex:1 1 100%;max-height:0;overflow:hidden;border-top:1px solid transparent;transition:max-height .32s ease,border-color .32s ease}
  .site-nav[data-open]{max-height:76vh;overflow-y:auto;border-top-color:rgba(247,242,232,.14)}
  .nav-list{flex-direction:column;align-items:stretch;gap:0;width:100%}
  .nav-link{display:flex;width:100%;padding:13px 10px;border-bottom:1px solid rgba(247,242,232,.1);border-left:2px solid transparent}
  .nav-link::before{width:22px;flex:0 0 auto}
  .nav-link:hover,.nav-link:focus-visible{background:rgba(242,196,109,.1)}
  .nav-link[aria-current="page"]{padding-left:16px;border-left-color:var(--amber);border-bottom-color:rgba(247,242,232,.1)}
}
@media (max-width:760px){
  body{font-size:16.5px}
  .grid-2,.grid-3{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .footer-col--contact{grid-column:auto}
  .topbar-inner{justify-content:flex-start}
  .topbar-group--end{margin-left:0}
  .contact-row{grid-template-columns:minmax(0,1fr);gap:2px}
  .contact-label{padding-top:0}
}
@media (max-width:520px){
  .footer-bottom-inner{flex-direction:column;align-items:flex-start}
  .table{min-width:460px;font-size:14px}
  .table th,.table td{padding:10px 11px}
}

/* ---------- 动效偏好 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .read-progress-bar{transition:none}
}