/* ============================================================
   才梓教育 · 站点样式
   深色克制科技风 / 无外部依赖
   ============================================================ */

:root{
  --bg:#0A0D11;
  --bg-2:#0C1116;
  --panel:#0F151C;
  --panel-2:#131B23;
  --line:rgba(255,255,255,.065);
  --line-2:rgba(255,255,255,.13);
  --text:#E6EDF3;
  --sub:#9AA8B6;
  --dim:#5E6B78;
  --accent:#4DD8C0;
  --accent-2:#7DE8D6;
  --accent-dim:rgba(77,216,192,.10);
  --warn:#E0A458;
  --warn-dim:rgba(224,164,88,.10);

  /* 字体：数字独立一套，避免等宽字体带来的"打字机感" */
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --num:"SF Pro Display",-apple-system,BlinkMacSystemFont,"Segoe UI","Helvetica Neue",Arial,"PingFang SC",sans-serif;
  --mono:ui-monospace,"SF Mono",Menlo,Consolas,monospace;
}

*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;scroll-padding-top:88px;}
body{
  background:var(--bg);color:var(--text);
  font-family:var(--sans);
  font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
::selection{background:rgba(77,216,192,.24);}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
.wrap{max-width:1180px;margin:0 auto;padding:0 32px;}
.mono{font-family:var(--mono);letter-spacing:.06em;}

/* 数字统一处理：等宽数字对齐，无衬线外形 */
.n-num{
  font-family:var(--num);
  font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum" 1;
  letter-spacing:-.025em;
  font-weight:600;
}

/* ===== 进度条 ===== */
#bar{position:fixed;top:0;left:0;height:2px;width:0;background:var(--accent);z-index:200;
  transition:width .1s linear;box-shadow:0 0 10px rgba(77,216,192,.5);}

/* ===== 导航 ===== */
header.site{
  position:fixed;top:0;left:0;right:0;z-index:150;
  background:rgba(10,13,17,.72);backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;transition:.3s;
}
header.site.scrolled{border-bottom-color:var(--line);background:rgba(10,13,17,.94);}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px;gap:24px;}
.logo{display:flex;align-items:center;gap:11px;flex:none;}
.logo svg{display:block;}
.logo b{font-size:16.5px;letter-spacing:.14em;font-weight:600;display:block;line-height:1.3;}
.logo i{font-style:normal;font-family:var(--mono);font-size:9.5px;color:var(--dim);
  letter-spacing:.16em;display:block;}
.menu{display:flex;align-items:center;gap:24px;}
.menu a{font-size:14px;color:var(--sub);letter-spacing:.03em;position:relative;padding:4px 0;transition:.2s;white-space:nowrap;}
.menu a:hover,.menu a.on{color:var(--text);}
.menu a::after{content:"";position:absolute;left:0;bottom:0;width:0;height:1px;
  background:var(--accent);transition:.25s;}
.menu a:hover::after,.menu a.on::after{width:100%;}
.cta{
  border:1px solid var(--line-2);padding:9px 20px;font-size:13.5px;letter-spacing:.05em;
  border-radius:2px;transition:.25s;flex:none;white-space:nowrap;
}
.cta:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-dim);}
.burger{display:none;width:22px;height:14px;position:relative;cursor:pointer;flex:none;}
.burger span{display:block;height:1px;background:var(--text);margin-bottom:5px;transition:.25s;}
.burger span:last-child{margin-bottom:0;}

/* ===== 首页 Hero ===== */
.hero{position:relative;padding:150px 0 86px;overflow:hidden;}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),
                   linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 80% 60% at 50% 0%,#000 30%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 80% 60% at 50% 0%,#000 30%,transparent 78%);
  opacity:.55;
}
.hero::after{
  content:"";position:absolute;width:620px;height:620px;right:-220px;top:-260px;
  background:radial-gradient(circle,rgba(77,216,192,.09),transparent 66%);pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.12fr .88fr;gap:60px;align-items:center;}
.tag{
  display:inline-flex;align-items:center;gap:9px;font-family:var(--mono);font-size:11px;
  letter-spacing:.18em;color:var(--accent);border:1px solid rgba(77,216,192,.28);
  background:var(--accent-dim);padding:6px 13px;border-radius:2px;margin-bottom:26px;
}
.tag .dot{width:5px;height:5px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 8px var(--accent);animation:pulse 2.4s infinite;}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:.35;}}
h1.hero-t{
  font-size:clamp(38px,4.5vw,60px);line-height:1.24;letter-spacing:.01em;font-weight:600;
  margin-bottom:24px;
}
h1.hero-t em{font-style:normal;color:var(--accent);}
.hero p.sub{font-size:16.5px;color:var(--sub);max-width:520px;line-height:1.95;margin-bottom:14px;}
.hero .note-line{font-size:12.5px;color:var(--dim);font-family:var(--mono);letter-spacing:.03em;}
.btns{display:flex;gap:14px;margin-top:32px;flex-wrap:wrap;}
.btn{
  display:inline-flex;align-items:center;gap:9px;padding:13px 26px;font-size:14.5px;
  letter-spacing:.04em;border-radius:2px;transition:.25s;border:1px solid transparent;cursor:pointer;
}
.btn-p{background:var(--accent);color:#04211C;font-weight:600;}
.btn-p:hover{background:var(--accent-2);transform:translateY(-1px);
  box-shadow:0 8px 24px -8px rgba(77,216,192,.45);}
.btn-s{border-color:var(--line-2);color:var(--sub);}
.btn-s:hover{border-color:var(--sub);color:var(--text);}

/* ===== 首页数据网格（替代原终端面板） ===== */
.dgrid{
  display:grid;grid-template-columns:1fr 1fr;gap:1px;
  background:var(--line-2);border:1px solid var(--line-2);border-radius:3px;overflow:hidden;
  box-shadow:0 30px 70px -46px rgba(0,0,0,.95);
}
.dcell{
  background:linear-gradient(158deg,var(--panel-2),var(--panel));
  padding:26px 24px 22px;position:relative;transition:.3s;
}
.dcell:hover{background:linear-gradient(158deg,#16202a,var(--panel-2));}
.dcell .k{
  font-family:var(--mono);font-size:9.5px;letter-spacing:.18em;color:var(--dim);
  margin-bottom:16px;display:block;
}
.dcell .v{
  font-family:var(--num);font-weight:600;font-size:clamp(30px,3.2vw,38px);
  line-height:1;font-variant-numeric:tabular-nums;letter-spacing:-.03em;
  color:var(--text);display:flex;align-items:baseline;
}
.dcell .v u{text-decoration:none;font-size:13.5px;font-weight:400;color:#7E8B99;
  margin-left:5px;letter-spacing:.06em;}
.dcell.acc .v{color:var(--accent);}
.dcell .l{font-size:12.5px;color:var(--sub);margin-top:11px;line-height:1.55;letter-spacing:.01em;}
.dgrid-ft{
  grid-column:1 / -1;background:rgba(255,255,255,.02);padding:11px 20px;
  font-family:var(--mono);font-size:10px;color:var(--dim);letter-spacing:.08em;
  border-top:1px solid var(--line);
}

/* ===== 通用区块 ===== */
section.pad{padding:100px 0;}
.sec-head{margin-bottom:52px;max-width:760px;}
.sec-no{font-family:var(--mono);font-size:11px;letter-spacing:.22em;color:var(--accent);margin-bottom:14px;}
h2.sec-t{font-size:clamp(25px,2.8vw,34px);line-height:1.42;letter-spacing:.01em;font-weight:600;margin-bottom:16px;}
.sec-head p{color:var(--sub);font-size:15.5px;line-height:1.95;max-width:660px;}

/* ===== 业务卡 ===== */
.svc{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.card{
  background:var(--panel);border:1px solid var(--line);border-radius:4px;padding:30px 26px 26px;
  position:relative;transition:.3s;overflow:hidden;display:flex;flex-direction:column;
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--accent),transparent);
  opacity:0;transition:.35s;
}
.card:hover{border-color:rgba(77,216,192,.3);transform:translateY(-3px);
  box-shadow:0 24px 50px -30px rgba(77,216,192,.2);}
.card:hover::before{opacity:1;}
.card .idx{font-family:var(--mono);font-size:10.5px;color:var(--dim);letter-spacing:.18em;margin-bottom:16px;}
.card h3{font-size:18.5px;letter-spacing:.02em;margin-bottom:13px;font-weight:600;line-height:1.5;}
.card .lead{font-size:13.8px;color:var(--sub);line-height:1.85;padding-bottom:18px;
  border-bottom:1px solid var(--line);margin-bottom:18px;min-height:78px;}
.card ul{list-style:none;margin-bottom:22px;flex:1;}
.card ul li{font-size:13.3px;color:var(--sub);line-height:1.75;padding-left:15px;
  position:relative;margin-bottom:9px;}
.card ul li::before{content:"";position:absolute;left:0;top:10px;width:5px;height:1px;background:var(--accent);}
.card .fit{font-size:11.5px;color:var(--dim);font-family:var(--mono);letter-spacing:.02em;
  padding-top:15px;border-top:1px dashed var(--line);line-height:1.7;}
.card .fit b{color:var(--sub);font-weight:400;}
.card .more{
  display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:12.5px;
  color:var(--accent);letter-spacing:.04em;transition:.2s;
}
.card .more:hover{gap:10px;}

/* ===== 大数字统计 ===== */
.stats{border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  display:grid;grid-template-columns:repeat(4,1fr);}
.stat{padding:42px 26px 38px;border-right:1px solid var(--line);}
.stat:last-child{border-right:none;}
.stat .n{font-family:var(--num);font-weight:600;font-variant-numeric:tabular-nums;
  font-size:clamp(36px,4vw,52px);line-height:1;letter-spacing:-.035em;color:var(--text);
  display:flex;align-items:baseline;}
.stat .n u{text-decoration:none;font-size:14px;font-weight:400;color:#7E8B99;
  margin-left:5px;letter-spacing:.06em;}
.stat .t{font-size:13.5px;color:var(--sub);margin-top:14px;line-height:1.6;letter-spacing:.01em;}
.stat .s{font-family:var(--mono);font-size:10px;color:var(--dim);margin-top:9px;letter-spacing:.07em;}
.stat.hi .n{color:var(--accent);}

/* ===== 流程 ===== */
.flow{display:grid;grid-template-columns:repeat(6,1fr);gap:0;margin-top:8px;}
.step{padding:0 18px 0 0;position:relative;}
.step::after{content:"";position:absolute;top:8px;right:8px;width:10px;height:1px;background:var(--line-2);}
.step:last-child::after{display:none;}
.step .k{font-family:var(--mono);font-size:10.5px;color:var(--accent);letter-spacing:.14em;margin-bottom:11px;}
.step .k::before{content:"";display:inline-block;width:4px;height:4px;background:var(--accent);
  border-radius:50%;margin-right:8px;vertical-align:2px;}
.step b{display:block;font-size:14px;margin-bottom:5px;font-weight:600;letter-spacing:.02em;}
.step span{font-size:12.2px;color:var(--dim);line-height:1.65;display:block;}

/* ===== 边界区 ===== */
.bound{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.bound-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:60px;align-items:start;}
.bound-list{list-style:none;}
.bound-list li{display:flex;gap:15px;padding:18px 0;border-bottom:1px solid var(--line);}
.bound-list li:first-child{padding-top:0;}
.bound-list li:last-child{border-bottom:none;}
.bound-list .x{flex:none;width:19px;height:19px;border:1px solid rgba(224,164,88,.38);
  color:var(--warn);font-size:11px;display:flex;align-items:center;justify-content:center;
  margin-top:4px;border-radius:2px;font-family:var(--mono);}
.bound-list .tx b{display:block;font-size:14.3px;margin-bottom:3px;font-weight:600;}
.bound-list .tx span{font-size:12.8px;color:var(--dim);line-height:1.7;display:block;}

/* ===== 历程列表 ===== */
.exp-list{list-style:none;counter-reset:e;}
.exp-list li{
  position:relative;padding:0 0 22px 26px;border-left:1px solid var(--line-2);
}
.exp-list li:last-child{padding-bottom:0;}
.exp-list li::before{
  content:"";position:absolute;left:-4px;top:7px;width:7px;height:7px;border-radius:50%;
  background:var(--bg);border:1px solid var(--accent);
}
.exp-list li:first-child::before{background:var(--accent);box-shadow:0 0 10px rgba(77,216,192,.5);}
.exp-list b{display:block;font-size:15px;color:var(--text);margin-bottom:4px;letter-spacing:.02em;}
.exp-list span{display:block;font-size:13.4px;color:var(--sub);line-height:1.8;}

/* ===== 自习室入口横幅 ===== */
.room-band{position:relative;overflow:hidden;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.rb-bg{position:absolute;inset:0;
  background:url('../study-room/assets/banner/b1.jpg') center/cover no-repeat;
  filter:brightness(.46) saturate(.92);}
.rb-bg::after{content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(8,11,14,.94) 0%,rgba(8,11,14,.62) 48%,rgba(8,11,14,.90) 100%);}
.room-band .in{position:relative;padding:76px 0;}
.room-band h2{margin-bottom:14px;}
.room-band p{color:#C3D0DA;font-size:15.4px;line-height:1.95;max-width:600px;}
@media(max-width:720px){.room-band .in{padding:56px 0;}}

/* ===== 团队 / 三栏 ===== */
.team{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);}
.tm{background:var(--bg);padding:30px 26px;}
.tm .r{font-family:var(--mono);font-size:10px;color:var(--accent);letter-spacing:.16em;margin-bottom:13px;}
.tm b{display:block;font-size:15.5px;margin-bottom:9px;letter-spacing:.02em;}
.tm p{font-size:13.3px;color:var(--sub);line-height:1.78;}

/* ===== FAQ ===== */
.faq{border-top:1px solid var(--line);}
details{border-bottom:1px solid var(--line);}
summary{
  padding:21px 44px 21px 0;cursor:pointer;font-size:15.2px;letter-spacing:.01em;
  position:relative;list-style:none;transition:.2s;color:var(--text);
}
summary::-webkit-details-marker{display:none;}
summary:hover{color:var(--accent);}
summary::after{
  content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);
  font-family:var(--mono);font-size:17px;color:var(--dim);transition:.25s;
}
details[open] summary::after{content:"−";color:var(--accent);}
details .ans{padding:0 56px 22px 0;font-size:14px;color:var(--sub);line-height:1.9;}

/* ===== 联系 ===== */
.contact{display:grid;grid-template-columns:1fr 1fr;gap:66px;}
form .fld{margin-bottom:19px;}
label{display:block;font-family:var(--mono);font-size:10px;letter-spacing:.15em;
  color:var(--dim);margin-bottom:8px;}
input,select,textarea{
  width:100%;background:var(--panel);border:1px solid var(--line-2);color:var(--text);
  padding:12px 14px;font-size:14px;font-family:inherit;border-radius:2px;
  transition:.2s;outline:none;
}
input:focus,select:focus,textarea:focus{border-color:var(--accent);background:var(--panel-2);}
select{appearance:none;
  background-image:linear-gradient(45deg,transparent 50%,var(--dim) 50%),
                   linear-gradient(135deg,var(--dim) 50%,transparent 50%);
  background-position:calc(100% - 18px) 19px,calc(100% - 13px) 19px;
  background-size:5px 5px;background-repeat:no-repeat;}
textarea{resize:vertical;min-height:86px;}
.f2{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.info-item{padding:21px 0;border-bottom:1px solid var(--line);}
.info-item:first-child{padding-top:0;}
.info-item .k{font-family:var(--mono);font-size:10px;letter-spacing:.16em;color:var(--dim);margin-bottom:7px;}
.info-item .v{font-size:14.8px;color:var(--text);line-height:1.7;}
.info-item .v small{display:block;font-size:12.3px;color:var(--dim);margin-top:4px;}
.hint{font-size:12px;color:var(--warn);margin-top:12px;display:none;font-family:var(--mono);letter-spacing:.03em;}

/* 联系电话 */
.tel-link{
  font-family:var(--num);font-size:20px;font-weight:600;color:var(--accent);
  letter-spacing:.02em;font-variant-numeric:tabular-nums;transition:.2s;
  display:inline-block;line-height:1.3;
}
.tel-link:hover{color:var(--accent-2);}
.person{font-size:12.8px;color:var(--sub);margin-top:2px;display:block;}

/* 微信号复制 */
.cp{
  background:none;border:none;padding:0;margin:0;cursor:pointer;
  font-family:var(--mono);font-size:16px;letter-spacing:.04em;
  color:var(--accent);transition:.2s;text-align:left;line-height:1.4;
}
.cp:hover{color:var(--accent-2);}
.cp.done{color:var(--warn);}
.cp-lg{font-size:18px;}
.ft-contact .cp{font-size:12.6px;letter-spacing:.03em;}

/* ============================================================
   内页
   ============================================================ */
.page-hero{
  position:relative;padding:132px 0 54px;border-bottom:1px solid var(--line);overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),
                   linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 70% 100% at 30% 0%,#000 20%,transparent 80%);
  -webkit-mask-image:radial-gradient(ellipse 70% 100% at 30% 0%,#000 20%,transparent 80%);
  opacity:.4;
}
.page-hero .in{position:relative;}
.crumb{display:flex;align-items:center;gap:9px;font-family:var(--mono);font-size:11px;
  letter-spacing:.1em;color:var(--dim);margin-bottom:22px;flex-wrap:wrap;}
.crumb a:hover{color:var(--accent);}
.crumb i{font-style:normal;color:#2C353E;}
.page-hero h1{font-size:clamp(30px,3.6vw,44px);line-height:1.3;font-weight:600;letter-spacing:.01em;margin-bottom:16px;}
.page-hero p{font-size:16px;color:var(--sub);line-height:1.9;max-width:720px;}
.page-hero .kv{display:flex;gap:28px;margin-top:26px;flex-wrap:wrap;}
.page-hero .kv div{font-size:12.5px;color:var(--dim);}
.page-hero .kv b{display:block;font-family:var(--num);font-size:20px;color:var(--accent);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;margin-bottom:2px;}

.layout{display:grid;grid-template-columns:minmax(0,1fr) 236px;
  gap:56px;align-items:start;padding:56px 0 96px;}
.art{max-width:802px;min-width:0;}
.art > *:first-child{margin-top:0;}

.art h2{
  font-size:24px;font-weight:600;letter-spacing:.02em;line-height:1.5;
  margin:52px 0 16px;padding-top:24px;border-top:1px solid var(--line);
}
.art > h2:first-child{border-top:none;padding-top:0;margin-top:0;}
.art h3{font-size:17px;font-weight:600;letter-spacing:.02em;color:var(--accent);margin:30px 0 10px;}
.art h4{font-size:15px;font-weight:600;margin:22px 0 8px;color:var(--text);}
.art p{font-size:15.2px;color:var(--sub);line-height:1.98;margin-bottom:16px;}
.art p strong,.art li strong{color:var(--text);font-weight:600;}
.art a.lnk{color:var(--accent);border-bottom:1px solid rgba(77,216,192,.3);transition:.2s;}
.art a.lnk:hover{border-bottom-color:var(--accent);}
.art ul,.art ol{margin:0 0 18px;padding-left:0;list-style:none;}
.art ul li{position:relative;padding-left:20px;font-size:15.2px;color:var(--sub);
  line-height:1.95;margin-bottom:9px;}
.art ul li::before{content:"";position:absolute;left:2px;top:12px;width:6px;height:1px;background:var(--accent);}
.art ol{counter-reset:o;}
.art ol li{position:relative;padding-left:30px;font-size:15.2px;color:var(--sub);
  line-height:1.95;margin-bottom:10px;counter-increment:o;}
.art ol li::before{content:counter(o);position:absolute;left:0;top:2px;font-family:var(--mono);
  font-size:11px;color:var(--accent);letter-spacing:.04em;}

.art table{width:100%;border-collapse:collapse;margin:20px 0 24px;font-size:13.4px;}
.art th{text-align:left;padding:11px 12px;background:rgba(255,255,255,.035);color:var(--text);
  font-weight:600;font-size:12.5px;letter-spacing:.04em;border-bottom:1px solid var(--line-2);}
.art td{padding:11px 12px;border-bottom:1px solid var(--line);color:var(--sub);vertical-align:top;line-height:1.72;}
.art tr:hover td{background:rgba(255,255,255,.015);}
.art td b{color:var(--text);}
.art .nw{white-space:nowrap;}
.art .ca{color:var(--accent);font-weight:600;}
.art .cr{color:#E07A66;font-weight:600;}

/* 提示块 */
.note-b{
  border-left:2px solid var(--accent);background:rgba(77,216,192,.055);
  padding:16px 20px;margin:20px 0;border-radius:0 2px 2px 0;
}
.note-b p{margin:0;font-size:14.2px;color:#BFD6D2;line-height:1.85;}
.note-b p + p{margin-top:8px;}
.note-b b{color:var(--accent);}
.note-w{
  border-left:2px solid var(--warn);background:var(--warn-dim);
  padding:16px 20px;margin:20px 0;border-radius:0 2px 2px 0;
}
.note-w p{margin:0;font-size:14.2px;color:#DCC3A0;line-height:1.85;}
.note-w p + p{margin-top:8px;}
.note-w b{color:var(--warn);}

/* 引文 */
.pull{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:26px 0;margin:30px 0;
  font-size:19px;line-height:1.85;color:var(--text);letter-spacing:.01em;
}
.pull span{color:var(--accent);}

/* 目录 */
.toc{position:sticky;top:100px;font-size:13px;}
.toc .h{font-family:var(--mono);font-size:10px;letter-spacing:.18em;color:#7C8A98;
  padding-bottom:12px;border-bottom:1px solid var(--line-2);margin-bottom:12px;}
.toc a{display:block;color:#8A97A5;padding:6px 0 6px 11px;border-left:1px solid var(--line-2);
  line-height:1.6;transition:.2s;font-size:12.8px;}
.toc a:hover{color:var(--accent);border-left-color:var(--accent);}
.toc .back{margin-top:20px;color:#7C8A98;font-size:12px;display:inline-flex;gap:6px;align-items:center;}
.toc .back:hover{color:var(--accent);}

/* 内页底部导航 */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:64px;padding-top:32px;
  border-top:1px solid var(--line);}
.pager a{
  border:1px solid var(--line);border-radius:3px;padding:18px 20px;transition:.25s;background:var(--panel);
}
.pager a:hover{border-color:rgba(77,216,192,.3);background:var(--panel-2);}
.pager .p-k{font-family:var(--mono);font-size:10px;letter-spacing:.16em;color:var(--dim);margin-bottom:6px;}
.pager .p-t{font-size:14.5px;color:var(--text);}
.pager .next{text-align:right;}

/* 相关阅读卡 */
.rel{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:26px 0;}
.rel a{border:1px solid var(--line);padding:18px 18px 16px;border-radius:3px;
  background:var(--panel);transition:.25s;}
.rel a:hover{border-color:rgba(77,216,192,.3);background:var(--panel-2);}
.rel .rk{font-family:var(--mono);font-size:10px;color:var(--dim);letter-spacing:.14em;margin-bottom:7px;}
.rel b{display:block;font-size:14px;margin-bottom:5px;font-weight:600;}
.rel span{font-size:12.3px;color:var(--dim);line-height:1.6;display:block;}

/* ===== 页脚 ===== */
footer.site{border-top:1px solid var(--line);padding:44px 0 40px;}
.ft-top{display:flex;justify-content:space-between;align-items:flex-start;gap:40px;
  padding-bottom:30px;border-bottom:1px solid var(--line);flex-wrap:wrap;}
.ft-cols{display:flex;gap:56px;flex-wrap:wrap;}
.ft-col .h{font-family:var(--mono);font-size:10px;letter-spacing:.16em;color:var(--dim);margin-bottom:12px;}
.ft-col a{display:block;font-size:13px;color:var(--sub);margin-bottom:8px;transition:.2s;}
.ft-col a:hover{color:var(--accent);}
.ft-contact{
  display:flex;gap:30px;flex-wrap:wrap;padding:18px 0;
  border-bottom:1px solid var(--line);font-size:12.6px;color:var(--sub);
}
.ft-contact span{display:inline-flex;align-items:center;gap:7px;}
.ft-contact i{font-style:normal;color:var(--dim);font-family:var(--mono);
  font-size:10px;letter-spacing:.1em;}
.ft-contact a{color:var(--accent);font-variant-numeric:tabular-nums;}
.ft-contact a:hover{color:var(--accent-2);}
.ft-bot{padding-top:22px;display:flex;justify-content:space-between;gap:24px;
  font-size:11.5px;color:var(--dim);line-height:1.8;flex-wrap:wrap;}
.ft-bot .src{max-width:660px;letter-spacing:.01em;}

/* ===== 动效 ===== */
.rv{opacity:0;transform:translateY(20px);
  transition:opacity .7s cubic-bezier(.2,.7,.3,1),transform .7s cubic-bezier(.2,.7,.3,1);}
.rv.in{opacity:1;transform:none;}
.d1{transition-delay:.07s;} .d2{transition-delay:.14s;} .d3{transition-delay:.21s;}

/* ===== 响应式 ===== */
@media(max-width:1040px){
  .hero-grid{grid-template-columns:1fr;gap:44px;}
  .svc{grid-template-columns:1fr;}
  .card .lead{min-height:auto;}
  .stats{grid-template-columns:1fr 1fr;}
  .stat:nth-child(2){border-right:none;}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line);}
  .flow{grid-template-columns:1fr 1fr;gap:26px 0;}
  .step::after{display:none;}
  .bound-grid,.contact{grid-template-columns:1fr;gap:36px;}
  .team,.rel{grid-template-columns:1fr;}
  .layout{grid-template-columns:1fr;gap:0;}
  .art{max-width:none;}
  .toc{display:none;}
  .menu{display:none;}
  .menu.open{display:flex;position:absolute;top:68px;left:0;right:0;flex-direction:column;
    background:rgba(10,13,17,.98);border-bottom:1px solid var(--line);padding:20px 32px;
    gap:18px;align-items:flex-start;}
  .burger{display:block;}
}
@media(max-width:720px){
  .wrap{padding:0 20px;}
  .hero{padding:116px 0 64px;}
  section.pad{padding:68px 0;}
  .page-hero{padding:112px 0 40px;}
  .layout{padding:40px 0 70px;}
  .stats{grid-template-columns:1fr;}
  .stat{border-right:none;border-bottom:1px solid var(--line);}
  .stat:last-child{border-bottom:none;}
  .f2{grid-template-columns:1fr;}
  h1.hero-t{font-size:33px;}
  .dgrid{grid-template-columns:1fr 1fr;}
  .dcell{padding:20px 18px 18px;}
  .pager{grid-template-columns:1fr;}
  .pager .next{text-align:left;}
  .art table{font-size:12.4px;}
  .art th,.art td{padding:8px;}
}
@media(max-width:430px){
  .nav .cta{display:none;}
  .dcell{padding:16px 14px 15px;}
  .dcell .v{font-size:26px;}
  .dcell .v u{font-size:12px;}
  .dcell .l{font-size:11.8px;margin-top:9px;}
  .dcell .k{font-size:9px;margin-bottom:13px;}
  .stat .n{font-size:34px;}
  .card{padding:24px 20px 22px;}
}
/* 移动端吸底行动条 */
.mbar{display:none;}
@media(max-width:720px){
  .mbar{
    display:grid;grid-template-columns:1fr 1.1fr;position:fixed;bottom:0;left:0;right:0;z-index:130;
    background:rgba(10,13,17,.97);border-top:1px solid var(--line-2);
    backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  }
  .mbar a,.mbar button{display:flex;align-items:center;justify-content:center;gap:7px;
    padding:14px 0;font-size:14px;letter-spacing:.03em;font-family:inherit;
    background:none;border:none;cursor:pointer;}
  .mbar .mb-call{background:var(--accent);color:#04211C;font-weight:600;}
  .mbar .mb-wx{color:var(--text);border-left:1px solid rgba(0,0,0,.15);}
  .mbar .mb-wx.done{color:var(--warn);}
  body{padding-bottom:51px;}
}

@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  .rv{opacity:1;transform:none;}
}