*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{
  --paper:#faf7f2;
  --ink:#1c1917;
  --ink-light:#44403c;
  --ink-soft:#57534e;
  --ink-faint:#78716c;
  --accent:#991b1b;
  --accent-dark:#7f1d1d;
  --accent-light:#fef2f2;
  --rule:#292524;
  --rule-light:#d6d3d1;
  --bg-white:#fefefe;
  --radius:2px;
}
html{scroll-behavior:smooth;font-size:16px}
body{
  font-family:'Noto Sans SC',system-ui,-apple-system,"PingFang SC",sans-serif;
  color:var(--ink);background:var(--paper);line-height:1.8;overflow-x:hidden;
}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit;transition:color .2s}
button{border:none;background:none;cursor:pointer;font-family:inherit;color:inherit}
ul,ol{list-style:none}

/* 顶部信息条 */
.top-meta{background:var(--ink);color:#e7e5e4;font-size:.78rem;padding:6px 0}
.meta-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap}
.meta-tel{color:#fca5a5;font-weight:500}
.meta-risk{flex:1;text-align:center}

/* 报头 */
.paper-header{border-bottom:3px double var(--rule)}
.paper-masthead{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;padding:28px 0 20px;gap:20px}
.masthead-left{font-size:.82rem;color:var(--ink-soft);line-height:1.6}
.vol{display:block;font-weight:700;text-transform:uppercase;letter-spacing:.1em}
.issue{font-size:.78rem}
.masthead-title{text-align:center}
.masthead-title h1{
  font-family:'Noto Serif SC',serif;
  font-size:clamp(1.8rem,4vw,2.8rem);font-weight:900;
  letter-spacing:.05em;color:var(--ink);
  border-top:2px solid var(--rule);border-bottom:2px solid var(--rule);
  padding:8px 24px;display:inline-block;
}
.masthead-right{display:flex;justify-content:flex-end;gap:10px}
.paper-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:8px 18px;border:1px solid var(--ink);border-radius:var(--radius);
  font-size:.85rem;font-weight:500;background:transparent;color:var(--ink);
  transition:all .2s;
}
.paper-btn:hover{background:var(--ink);color:var(--paper)}
.paper-btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.paper-btn.primary:hover{background:var(--accent-dark);border-color:var(--accent-dark)}
.paper-btn.lg{padding:12px 28px;font-size:.95rem}
.paper-btn.block{width:100%}
.paper-nav{
  display:flex;align-items:center;justify-content:center;flex-wrap:wrap;
  gap:6px;padding:12px 0;border-top:1px solid var(--rule-light);border-bottom:1px solid var(--rule);
  font-size:.88rem;
}
.paper-nav a{padding:4px 10px;color:var(--ink-soft);font-weight:500}
.paper-nav a:hover{color:var(--accent)}
.nav-divider{color:var(--rule-light)}
.mobile-menu-btn{display:none;position:absolute;top:14px;right:24px;width:40px;height:40px;flex-direction:column;gap:5px;align-items:center;justify-content:center}
.mobile-menu-btn span{width:22px;height:2px;background:var(--ink);transition:all .3s}
.mobile-menu-btn.active span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.mobile-menu-btn.active span:nth-child(2){opacity:0}
.mobile-menu-btn.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}

/* Hero 导读 */
.hero-lead{padding:48px 0;border-bottom:1px solid var(--rule-light)}
.lead-wrap{display:grid;grid-template-columns:1.3fr 1fr;gap:40px;align-items:start}
.lead-kicker{
  display:inline-block;font-size:.75rem;text-transform:uppercase;letter-spacing:.2em;
  color:var(--accent);font-weight:700;border-top:2px solid var(--accent);border-bottom:2px solid var(--accent);
  padding:4px 0;margin-bottom:20px;
}
.lead-headline{
  font-family:'Noto Serif SC',serif;
  font-size:clamp(1.8rem,3.5vw,2.8rem);font-weight:900;line-height:1.3;
  margin-bottom:20px;
}
.lead-deck{
  font-family:'Noto Serif SC',serif;
  font-size:1.05rem;line-height:1.9;color:var(--ink-light);
  margin-bottom:28px;text-align:justify;
  column-count:1;
}
.lead-actions{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.lead-tel{color:var(--accent);font-weight:600;font-size:.95rem}
.lead-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border:1px solid var(--rule)}
.fig-caption{font-size:.78rem;color:var(--ink-faint);text-align:center;margin-top:8px;font-style:italic}

/* 滚动公告 */
.marquee-bar{background:var(--ink);color:#fef2f2;padding:10px 0;overflow:hidden}
.marquee-bar .container{display:flex;align-items:center;gap:16px}
.marquee-label{
  background:var(--accent);color:#fff;padding:4px 12px;
  font-size:.75rem;font-weight:700;letter-spacing:.1em;flex-shrink:0;
}
.marquee-text{flex:1;overflow:hidden;font-size:.85rem;color:#fca5a5;white-space:nowrap}

/* 区块标题 线装饰 */
section{padding:60px 0}
.section-ruled{display:flex;align-items:center;gap:20px;margin-bottom:28px}
.section-ruled.left{justify-content:flex-start}
.ruled-left,.ruled-right{flex:1;height:1px;background:var(--rule)}
.ruled-full{flex:1;height:1px;background:var(--rule);margin-top:8px}
.section-title{
  font-family:'Noto Serif SC',serif;
  font-size:clamp(1.4rem,2.5vw,1.8rem);font-weight:700;
  letter-spacing:.05em;text-align:center;white-space:nowrap;
}
.section-title.small{font-size:1.3rem;text-align:left}
.section-sub{text-align:center;color:var(--ink-soft);max-width:700px;margin:0 auto 32px;font-size:.95rem}

/* 平台索引 */
.platforms-section{background:var(--bg-white)}
.index-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:0;border:1px solid var(--rule)}
.index-card{
  padding:28px;border-right:1px solid var(--rule-light);border-bottom:1px solid var(--rule-light);
  position:relative;transition:background .2s;
}
.index-card:hover{background:var(--accent-light)}
.index-card:nth-child(3n){border-right:none}
.index-card:nth-last-child(-n+3){border-bottom:none}
.ic-number{
  font-family:'Noto Serif SC',serif;
  font-size:.75rem;color:var(--accent);font-weight:700;letter-spacing:.15em;margin-bottom:12px;
}
.ic-letter{
  width:48px;height:48px;font-family:'Noto Serif SC',serif;
  background:var(--ink);color:#fff;font-size:1.4rem;font-weight:900;
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.ic-letter.binance{background:#d97706}
.ic-letter.bitget{background:#0369a1}
.ic-letter.bybit{background:#b45309}
.ic-letter.kraken{background:#5b21b6}
.ic-letter.more{background:var(--ink-faint)}
.index-card h3{font-family:'Noto Serif SC',serif;font-size:1.2rem;font-weight:700;margin-bottom:8px}
.index-card p{font-size:.9rem;color:var(--ink-soft);line-height:1.7;margin-bottom:14px;text-align:justify}
.ic-devices{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:14px}
.ic-devices span{
  font-size:.72rem;padding:2px 8px;border:1px solid var(--rule-light);
  border-radius:2px;color:var(--ink-soft);
}
.ic-links{display:flex;gap:16px}
.text-link{font-size:.85rem;color:var(--accent);font-weight:500}
.text-link:hover{text-decoration:underline}
.index-card.more{background:var(--paper)}

/* 下载表格 */
.download-table{border:2px solid var(--rule);margin-bottom:16px}
.dt-head{
  display:grid;grid-template-columns:1.2fr 1.2fr 1.5fr 1.5fr 1fr;
  background:var(--ink);color:#e7e5e4;padding:14px 20px;gap:12px;
  font-size:.85rem;font-weight:600;letter-spacing:.05em;
}
.dt-group-title{
  padding:10px 20px;background:var(--accent-light);
  font-family:'Noto Serif SC',serif;font-weight:700;font-size:.9rem;
  border-top:1px solid var(--rule);border-bottom:1px solid var(--rule);
  color:var(--accent-dark);
}
.dt-row{
  display:grid;grid-template-columns:1.2fr 1.2fr 1.5fr 1.5fr 1fr;
  padding:14px 20px;gap:12px;border-bottom:1px solid var(--rule-light);
  font-size:.88rem;align-items:center;
}
.dt-row:nth-child(even){background:#fafaf9}
.dt-row:last-child{border-bottom:none}
.dt-col.platform{font-weight:600}
.dt-col.system,.dt-col.source{color:var(--ink-soft);font-size:.85rem}
.table-note{font-size:.85rem;color:var(--ink-soft);padding:12px 16px;background:var(--paper);border:1px solid var(--rule-light);border-top:none;line-height:1.7}

/* 教程步骤 */
.numbered-steps{max-width:900px;margin:0 auto;display:flex;flex-direction:column;gap:0}
.n-step{display:flex;gap:24px;align-items:flex-start;padding:24px 0;border-bottom:1px dashed var(--rule-light)}
.n-step:last-child{border-bottom:none}
.ns-num{
  font-family:'Noto Serif SC',serif;
  width:56px;height:56px;border:2px solid var(--accent);color:var(--accent);
  display:flex;align-items:center;justify-content:center;font-size:1.5rem;font-weight:900;
  flex-shrink:0;
}
.ns-body{flex:1}
.ns-body h3{font-family:'Noto Serif SC',serif;font-size:1.15rem;font-weight:700;margin-bottom:8px}
.ns-body p{color:var(--ink-soft);line-height:1.7;font-size:.95rem}

/* 双栏功能 */
.two-column{display:grid;grid-template-columns:2fr 1fr;gap:40px;align-items:flex-start}
.feat-columns{display:grid;grid-template-columns:1fr 1fr;gap:20px 40px;margin:20px 0}
.feat-item-paper{display:flex;gap:12px;align-items:flex-start;padding:12px 0;border-bottom:1px dotted var(--rule-light)}
.feat-item-paper:last-child{border-bottom:none}
.fi-bullet{color:var(--accent);font-size:1.2rem;line-height:1;font-weight:700;flex-shrink:0}
.feat-item-paper h4{font-family:'Noto Serif SC',serif;font-size:1rem;font-weight:700;margin-bottom:4px}
.feat-item-paper p{font-size:.88rem;color:var(--ink-soft);line-height:1.6}
.risk-warning{
  background:var(--accent-light);border:1px solid var(--accent);
  padding:16px 20px;font-size:.88rem;color:var(--accent-dark);line-height:1.7;margin-top:20px;
}
.col-side{position:sticky;top:100px}
.side-box{border:1px solid var(--rule);padding:24px;background:var(--bg-white)}
.side-box h4{font-family:'Noto Serif SC',serif;font-size:1.1rem;font-weight:700;padding-bottom:12px;border-bottom:2px solid var(--accent);margin-bottom:16px;color:var(--accent)}
.safety-list li{display:flex;gap:12px;align-items:flex-start;padding:10px 0;border-bottom:1px dotted var(--rule-light);font-size:.9rem}
.safety-list li:last-child{border-bottom:none}
.sl-num{
  width:22px;height:22px;border:1px solid var(--accent);color:var(--accent);
  font-size:.72rem;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0;
  font-family:'Noto Serif SC',serif;
}

/* 资讯列表 硬性规则 */
ul.article-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 0;
  list-style: none;
  margin: 0;
  padding: 0;
  width: 100%;
  box-sizing: border-box;
  border:1px solid var(--rule);border-bottom:none;border-right:none;
}
ul.article-cards > li.article-card {
  min-width: 0;
  width: auto;
  max-width: none;
  margin: 0;
  float: none;
  box-sizing: border-box;
  background:var(--bg-white);border-right:1px solid var(--rule-light);border-bottom:1px solid var(--rule-light);
  padding:20px;transition:background .2s;
}
ul.article-cards > li.article-card:hover{background:var(--accent-light)}
.article-card .card-thumb {
  width: 100%;
  overflow: hidden;
  aspect-ratio: 16/9;
  border:1px solid var(--rule);
}
.article-card .card-thumb img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: 100%;
  object-fit: cover;
  filter:grayscale(20%);
}
.article-card .card-title {
  overflow-wrap: anywhere;
  font-family:'Noto Serif SC',serif;
  font-size:1rem;font-weight:700;line-height:1.5;padding:14px 0 8px;
}
.article-card .card-title a{color:var(--ink)}
.article-card .card-title a:hover{color:var(--accent)}
.article-card .card-date {
  display: block;
  font-size:.75rem;color:var(--ink-faint);padding:0 0 8px;
  border-bottom:1px dotted var(--rule-light);
}
.article-card .card-summary {
  overflow-wrap: anywhere;
  font-size:.82rem;color:var(--ink-soft);line-height:1.7;padding:8px 0 0;
}

/* FAQ */
.faq-columns{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.faq-paper{border:1px solid var(--rule);padding:20px 24px;margin-bottom:16px;background:var(--bg-white);transition:border-color .2s}
.faq-paper:hover{border-color:var(--accent)}
.faq-paper h5{font-family:'Noto Serif SC',serif;font-size:1rem;font-weight:700;display:flex;gap:10px;align-items:flex-start;line-height:1.5}
.q-mark{
  width:24px;height:24px;background:var(--accent);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:.8rem;
  font-weight:700;flex-shrink:0;font-family:'Noto Serif SC',serif;
}
.a-wrap{display:flex;gap:10px;align-items:flex-start;margin-top:12px;padding-top:12px;border-top:1px dotted var(--rule-light)}
.a-mark{
  width:24px;height:24px;border:1px solid var(--accent);color:var(--accent);
  display:flex;align-items:center;justify-content:center;font-size:.8rem;
  font-weight:700;flex-shrink:0;font-family:'Noto Serif SC',serif;
}
.a-wrap p{font-size:.9rem;color:var(--ink-soft);line-height:1.7}

/* 关于我们 */
.about-paper{display:grid;grid-template-columns:1.5fr 1fr;gap:40px;border:1px solid var(--rule);padding:32px;background:var(--bg-white)}
.ap-subtitle{font-family:'Noto Serif SC',serif;font-size:1.3rem;font-weight:700;margin-bottom:16px;padding-bottom:10px;border-bottom:2px solid var(--accent);display:inline-block}
.ap-col p{color:var(--ink-light);line-height:1.9;margin-bottom:16px;text-align:justify}
.ap-statement{background:var(--accent-light);border-left:3px solid var(--accent);padding:14px 18px;font-size:.88rem;color:var(--accent-dark);line-height:1.7}
.ap-col h4{font-family:'Noto Serif SC',serif;font-size:1.1rem;font-weight:700;margin-bottom:16px}
.service-list-paper li{padding:8px 0;font-size:.92rem;color:var(--ink-soft);border-bottom:1px dotted var(--rule-light)}
.service-list-paper li:last-child{border-bottom:none}

/* 联系我们 */
.contact-paper{display:grid;grid-template-columns:1fr 1fr;gap:40px;border:1px solid var(--rule);padding:32px;background:var(--bg-white)}
.cp-info h3{font-family:'Noto Serif SC',serif;font-size:1.3rem;font-weight:700;margin-bottom:12px}
.cp-info > p{color:var(--ink-soft);line-height:1.8;margin-bottom:24px}
.cp-item{display:flex;gap:14px;align-items:flex-start;padding:14px 0;border-bottom:1px dotted var(--rule-light)}
.cpi-label{font-size:.88rem;color:var(--ink-soft);min-width:100px}
.cpi-val{font-weight:500}
.cpi-val.phone{font-family:'Noto Serif SC',serif;font-size:1.2rem;color:var(--accent);font-weight:700}
.cp-form{border-left:1px solid var(--rule-light);padding-left:40px}
.cp-form h4{font-family:'Noto Serif SC',serif;font-size:1.15rem;font-weight:700;margin-bottom:6px}
.form-note{font-size:.78rem;color:var(--ink-faint);margin-bottom:20px}
.form-g-p{margin-bottom:14px}
.form-g-p label{display:block;font-size:.85rem;font-weight:500;margin-bottom:6px}
.form-g-p input,.form-g-p select,.form-g-p textarea{
  width:100%;padding:10px 14px;border:1px solid var(--rule-light);
  font-family:inherit;font-size:.9rem;background:var(--paper);transition:border-color .2s;
}
.form-g-p input:focus,.form-g-p select:focus,.form-g-p textarea:focus{outline:none;border-color:var(--accent);background:#fff}
.form-g-p textarea{resize:vertical}
.form-row-p{display:grid;grid-template-columns:1fr 1fr;gap:14px}

/* 文章详情 - 印刷风格 */
.article-print{padding:50px 0 70px}
.print-container{max-width:780px;margin:0 auto}
.print-rule{height:3px;background:var(--rule);margin-bottom:20px}
.print-rule.thin{height:1px;background:var(--rule-light);margin:16px 0}
.print-rule.thick{height:2px;background:var(--rule);margin:32px 0}
.print-breadcrumb{font-size:.82rem;color:var(--ink-faint);margin-bottom:20px}
.print-breadcrumb a:hover{color:var(--accent)}
.print-headline{font-family:'Noto Serif SC',serif;font-size:clamp(1.6rem,3vw,2.4rem);font-weight:900;line-height:1.3;margin-bottom:16px}
.print-byline{font-size:.85rem;color:var(--ink-faint);display:flex;gap:14px;flex-wrap:wrap;padding-bottom:16px}
.print-byline a{color:var(--accent)}
.byline-sep{color:var(--rule-light)}
.print-deck{
  font-family:'Noto Serif SC',serif;
  font-size:1.05rem;line-height:1.9;color:var(--ink-light);
  padding:20px 0;margin-bottom:20px;
  border-top:1px solid var(--rule-light);border-bottom:1px solid var(--rule-light);
}
.print-figure{margin-bottom:28px}
.print-figure img{width:100%;border:1px solid var(--rule)}
.print-figure figcaption{font-size:.8rem;color:var(--ink-faint);text-align:center;margin-top:8px;font-style:italic}
.print-body{font-family:'Noto Serif SC',serif;line-height:2;font-size:1rem;color:var(--ink);text-align:justify}
.print-body h2{font-size:1.4rem;font-weight:700;margin:36px 0 14px}
.print-body h3{font-size:1.2rem;font-weight:700;margin:28px 0 10px}
.print-body p{margin-bottom:16px;text-indent:2em}
.print-body img{margin:20px 0;border:1px solid var(--rule)}
.print-body ul,.print-body ol{margin:16px 0;padding-left:2em}
.print-body ul li{list-style:disc;margin-bottom:6px;text-indent:0}
.print-body ol li{list-style:decimal;margin-bottom:6px;text-indent:0}
.print-body blockquote{
  border-left:3px solid var(--accent);padding:12px 20px;
  background:var(--accent-light);margin:20px 0;color:var(--accent-dark);font-style:italic;text-indent:0;
}
.print-body a{color:var(--accent);border-bottom:1px dotted var(--accent)}
.print-actions{display:flex;gap:10px;flex-wrap:wrap;margin:28px 0}
.print-relate{margin:36px 0}
.print-relate h4{font-family:'Noto Serif SC',serif;font-size:1.1rem;margin-bottom:16px}
.relate-links{display:flex;gap:10px;flex-wrap:wrap}
.relate-pill{padding:8px 16px;border:1px solid var(--rule);font-size:.85rem;transition:all .2s}
.relate-pill:hover{background:var(--ink);color:var(--paper)}
.print-cta{
  border:2px solid var(--rule);padding:32px;text-align:center;
  background:var(--ink);color:#e7e5e4;
}
.print-cta h3{font-family:'Noto Serif SC',serif;font-size:1.4rem;color:#fff;margin-bottom:8px}
.print-cta p{opacity:.8;margin-bottom:24px}
.cta-btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.print-cta .paper-btn{border-color:#e7e5e4;color:#e7e5e4}
.print-cta .paper-btn:hover{background:#e7e5e4;color:var(--ink)}
.print-cta .paper-btn.primary{background:var(--accent);border-color:var(--accent);color:#fff}
.print-cta .paper-btn.primary:hover{background:var(--accent-dark)}

/* Footer */
.paper-footer{background:var(--ink);color:#a8a29e;padding:0 0 30px;margin-top:40px}
.footer-rule{height:3px;background:#a8a29e;margin-bottom:40px}
.footer-rule.thick{height:2px;background:#57534e;margin:30px 0}
.footer-head{text-align:center;margin-bottom:40px}
.footer-title{font-family:'Noto Serif SC',serif;font-size:1.8rem;color:#faf7f2;margin-bottom:8px}
.footer-tagline{font-size:.85rem;color:#78716c;letter-spacing:.1em}
.footer-sections{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;padding-bottom:30px;border-bottom:1px solid #44403c}
.fc-brand p{font-size:.88rem;line-height:1.8;color:#78716c;margin-bottom:14px}
.footer-tel{font-size:.88rem}
.footer-tel a{color:#fca5a5;font-weight:600}
.footer-col h6{font-family:'Noto Serif SC',serif;color:#faf7f2;font-size:.95rem;margin-bottom:16px;font-weight:700;padding-bottom:8px;border-bottom:1px solid #44403c}
.footer-col a{display:block;font-size:.85rem;color:#78716c;padding:4px 0}
.footer-col a:hover{color:#fca5a5}
.footer-links-block{padding:24px 0;border-bottom:1px solid #44403c}
.footer-links-block h6{font-family:'Noto Serif SC',serif;color:#faf7f2;font-size:.9rem;margin-bottom:12px}
.links-inline{display:flex;flex-wrap:wrap;gap:16px}
.links-inline a{font-size:.82rem;color:#78716c}
.links-inline a:hover{color:#fca5a5}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px;padding-top:20px}
.fb-copy p{font-size:.8rem;color:#57534e;margin-bottom:4px}
.fb-beian{display:flex;gap:16px}
.fb-beian a{font-size:.8rem;color:#78716c}
.fb-beian a:hover{color:#fca5a5}

/* Modal */
.modal{position:fixed;inset:0;z-index:200;display:none;align-items:center;justify-content:center;padding:20px}
.modal.active{display:flex}
.modal-mask{position:absolute;inset:0;background:rgba(0,0,0,.6)}
.modal-paper{
  position:relative;background:var(--paper);border:2px solid var(--ink);
  padding:36px 32px;max-width:420px;width:100%;text-align:center;
  box-shadow:8px 8px 0 var(--ink);
}
.modal-close{
  position:absolute;top:12px;right:12px;width:30px;height:30px;
  border:1px solid var(--ink);font-size:1.1rem;display:flex;align-items:center;justify-content:center;
}
.modal-close:hover{background:var(--ink);color:#fff}
.modal-tag{font-size:.72rem;letter-spacing:.2em;color:var(--accent);font-weight:700;margin-bottom:10px}
.modal-paper h3{font-family:'Noto Serif SC',serif;font-size:1.3rem;margin-bottom:10px}
.modal-paper > p{font-size:.9rem;color:var(--ink-soft);line-height:1.7;margin-bottom:16px}
.modal-note{background:var(--accent-light);border:1px solid var(--accent);padding:14px;font-size:.85rem;color:var(--accent-dark);line-height:1.6;text-align:left;margin-bottom:20px}

/* Toast */
.toast{
  position:fixed;bottom:40px;left:50%;transform:translateX(-50%) translateY(100px);
  background:var(--ink);color:#faf7f2;padding:12px 24px;font-size:.88rem;
  z-index:300;opacity:0;transition:all .3s;border:1px solid #57534e;
}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

/* 响应式 */
@media(max-width:1024px){
  .lead-wrap{grid-template-columns:1fr}
  .lead-figure{max-width:500px;margin:0 auto}
  .two-column,.about-paper,.contact-paper{grid-template-columns:1fr;gap:30px}
  .col-side{position:static}
  .cp-form{border-left:none;padding-left:0;border-top:1px solid var(--rule-light);padding-top:30px}
  .footer-sections{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .paper-nav{display:none;flex-direction:column;gap:0;padding:10px 0;position:absolute;top:100%;left:0;right:0;background:var(--paper);border:1px solid var(--rule);z-index:50}
  .paper-nav.active{display:flex}
  .paper-nav a{padding:12px 20px;border-bottom:1px solid var(--rule-light);width:100%}
  .paper-nav .nav-divider{display:none}
  .mobile-menu-btn{display:flex;position:static}
  .paper-header{position:relative;display:flex;align-items:center;justify-content:space-between}
  .paper-masthead{grid-template-columns:1fr;padding:16px 0}
  .masthead-left,.masthead-right{display:none}
  .masthead-title{text-align:center}
  .hero-lead{padding:30px 0}
  section{padding:40px 0}
  .index-grid{grid-template-columns:1fr}
  .index-card{border-right:none}
  .dt-head,.dt-row{grid-template-columns:1fr 1fr;gap:8px}
  .dt-head .dt-col:nth-child(3),.dt-head .dt-col:nth-child(4),
  .dt-row .dt-col:nth-child(3),.dt-row .dt-col:nth-child(4){display:none}
  .feat-columns,.faq-columns{grid-template-columns:1fr}
  .form-row-p{grid-template-columns:1fr}
  .footer-sections{grid-template-columns:1fr}
  .n-step{flex-direction:column;gap:12px}
  .print-body p{text-indent:0}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}
  html{scroll-behavior:auto}
}