/* ============================================================
   Chrome 版本检测中心 - style.css
   浅色数据控制台风格 · IBM Plex Mono + Inter
   ============================================================ */
:root{
  --bg:#F4F6F9;
  --bg-soft:#EEF1F6;
  --card:#FFFFFF;
  --ink:#171A1F;
  --ink-2:#4A5566;
  --ink-3:#8A93A3;
  --line:#E2E7EF;
  --line-2:#D3D9E4;
  --c-blue:#4285F4;
  --c-red:#EA4335;
  --c-yellow:#FBBC05;
  --c-green:#34A853;
  --blue-soft:#E8F0FE;
  --red-soft:#FDECEB;
  --green-soft:#E7F6EC;
  --yellow-soft:#FEF7E0;
  --mono:'IBM Plex Mono', ui-monospace, SFMono-Regular, Consolas, monospace;
  --sans:'Inter', -apple-system, 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
  --radius:12px;
  --radius-sm:8px;
  --shadow:0 1px 2px rgba(20,30,50,.05), 0 6px 20px rgba(20,30,50,.05);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-size:14px;
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit}

/* ---------- 顶栏 ---------- */
.topbar{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.88);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.topbar-inner{
  max-width:1200px;margin:0 auto;padding:10px 20px;
  display:flex;align-items:center;gap:18px;
}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.brand-dot{
  width:14px;height:14px;border-radius:4px;flex:none;
  background:conic-gradient(from 210deg, var(--c-red) 0 25%, var(--c-yellow) 0 50%, var(--c-green) 0 75%, var(--c-blue) 0);
}
.brand-name{font-weight:800;font-size:15px;letter-spacing:.2px}
.brand-sub{font-family:var(--mono);font-size:10px;color:var(--ink-3);letter-spacing:.5px}
.nav{display:flex;gap:4px;margin-left:auto}
.nav a{
  text-decoration:none;color:var(--ink-2);font-size:13px;font-weight:500;
  padding:6px 10px;border-radius:8px;white-space:nowrap;
}
.nav a:hover{background:var(--bg-soft);color:var(--ink)}
.topbar-live{
  font-family:var(--mono);font-size:11px;font-weight:600;
  color:var(--ink-2);background:var(--bg-soft);border:1px solid var(--line);
  padding:5px 10px;border-radius:20px;white-space:nowrap;
}
.topbar-live.tag{color:var(--c-green);background:var(--green-soft);border-color:#BFE4CB}
.topbar-live.tag.warn{color:#B26A00;background:var(--yellow-soft);border-color:#F3DFA0}

/* ---------- 通用卡片 ---------- */
main{max-width:1200px;margin:0 auto;padding:0 20px 40px}
.section{margin-top:44px;scroll-margin-top:70px}
.section-head{margin-bottom:14px}
.sec-no{
  font-family:var(--mono);font-weight:700;font-size:13px;color:var(--c-blue);
  background:var(--blue-soft);padding:2px 8px;border-radius:6px;margin-right:8px;
}
.section-head h2{font-size:20px;font-weight:800;letter-spacing:.2px;display:flex;align-items:center;gap:4px}
.sec-sub{color:var(--ink-2);font-size:13px;margin-top:4px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:20px;
}
.card-eyebrow{
  font-family:var(--mono);font-size:11px;font-weight:600;color:var(--ink-3);
  letter-spacing:.4px;margin-bottom:14px;text-transform:uppercase;
}
.eyebrow-note{color:var(--ink-3);text-transform:none;font-weight:500}
.footnote{color:var(--ink-3);font-size:11.5px;margin-top:14px}

/* ---------- HERO ---------- */
.hero{margin-top:24px;display:flex;flex-direction:column;gap:18px}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:16px}

.detect-card{}
.browser-ident{display:flex;gap:14px;align-items:center;margin-bottom:16px}
.browser-badge{
  width:52px;height:52px;border-radius:14px;flex:none;
  display:flex;align-items:center;justify-content:center;
  font-size:26px;font-weight:800;color:#fff;
  background:conic-gradient(from 210deg, var(--c-red) 0 25%, var(--c-yellow) 0 50%, var(--c-green) 0 75%, var(--c-blue) 0);
  box-shadow:0 4px 12px rgba(20,30,50,.15);
}
.browser-name{font-size:22px;font-weight:800;letter-spacing:.2px}
.browser-meta{font-family:var(--mono);font-size:12px;color:var(--ink-2);margin-top:2px}
.kv{display:grid;grid-template-columns:repeat(2,1fr);gap:8px 24px;margin-bottom:14px}
.kv .item{display:flex;justify-content:space-between;align-items:baseline;border-bottom:1px dashed var(--line);padding-bottom:5px;font-size:13px}
.kv dt{color:var(--ink-3);font-size:12px}
.kv dd{font-family:var(--mono);font-weight:600}
.ua{
  font-family:var(--mono);font-size:11px;color:var(--ink-3);background:var(--bg-soft);
  border:1px dashed var(--line-2);border-radius:var(--radius-sm);
  padding:8px 10px;word-break:break-all;line-height:1.5;margin-top:10px;
}

.compare-card{}
.compare-vs{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.cmp-item{flex:1}
.cmp-label{font-size:12px;color:var(--ink-3);margin-bottom:3px}
.cmp-value{font-family:var(--mono);font-weight:700;font-size:26px;letter-spacing:-.5px}
.cmp-item-latest .cmp-value{color:var(--c-green)}
.cmp-item-latest .cmp-label{color:var(--c-green);font-weight:600}
.cmp-gap{
  font-family:var(--mono);font-size:12px;font-weight:700;text-align:center;
  background:var(--bg-soft);border:1px solid var(--line);border-radius:20px;padding:4px 12px;white-space:nowrap;
}
.cmp-gap.behind{color:#C62828;background:var(--red-soft);border-color:#F4C7C3}

.gap-meter{margin:14px 0 16px}
.gap-bar{position:relative;height:12px;background:var(--bg-soft);border-radius:8px;overflow:visible;border:1px solid var(--line)}
.gap-fill{position:absolute;left:0;top:0;bottom:0;border-radius:8px;background:linear-gradient(90deg,#C6D8F6,var(--c-blue));width:0;transition:width 1s ease}
.gap-you{
  position:absolute;top:-5px;width:2px;height:22px;background:var(--c-red);transform:translateX(-1px);
  border-radius:2px;transition:left 1s ease;
}
.gap-scale{display:flex;justify-content:space-between;font-family:var(--mono);font-size:10px;color:var(--ink-3);margin-top:4px}

.status-rows{display:flex;flex-direction:column;gap:8px}
.status-row{
  display:flex;align-items:center;gap:10px;font-size:13px;
  padding:8px 12px;border-radius:var(--radius-sm);background:var(--bg-soft);border:1px solid var(--line);
}
.status-row .s-label{width:120px;color:var(--ink-2);font-size:12px;flex:none}
.status-row .s-val{font-weight:600;font-family:var(--mono);flex:none}
.status-row .s-desc{color:var(--ink-2);font-size:12px;margin-left:auto;text-align:right}
.pill{font-size:11px;font-weight:700;padding:2px 8px;border-radius:6px;flex:none}
.pill.ok{background:var(--green-soft);color:#1E7E3C;border:1px solid #BFE4CB}
.pill.mid{background:var(--yellow-soft);color:#9A6B00;border:1px solid #F3DFA0}
.pill.bad{background:var(--red-soft);color:#C62828;border:1px solid #F4C7C3}

/* ---------- 版本光谱条 ---------- */
.spectrum-card{}
.spectrum{
  position:relative;height:58px;border-radius:var(--radius-sm);overflow:hidden;
  background:var(--bg-soft);border:1px solid var(--line);
  margin-top:6px;
}
.spectrum-fill{position:absolute;inset:0;display:flex}
.spectrum-czone{position:absolute;bottom:0;top:0;border-left:1px solid rgba(20,30,50,.18)}
.spectrum-seg{flex:1;position:relative}
.spectrum-ticks{position:absolute;inset:0;display:flex;align-items:flex-end}
.spectrum-tick{flex:1;display:flex;justify-content:center;position:relative}
.spectrum-tick::after{
  content:"";position:absolute;bottom:0;width:1px;height:40%;background:rgba(20,30,50,.14);
}
.spectrum-tick.major::before{
  content:attr(data-v);position:absolute;bottom:-16px;font-family:var(--mono);font-size:9px;color:var(--ink-3);
}
.spectrum-flag{
  position:absolute;bottom:-2px;transform:translateX(-50%);
  font-family:var(--mono);font-size:10px;font-weight:700;
  background:var(--c-red);color:#fff;padding:2px 7px;border-radius:6px;
  box-shadow:0 2px 8px rgba(234,67,53,.4);white-space:nowrap;z-index:5;
}
.spectrum-flag.your{background:var(--c-blue)}
.spectrum-flag.latest{left:auto;right:6px;transform:none;background:var(--c-green);box-shadow:0 2px 8px rgba(52,168,83,.4)}
.spectrum-flag.left-anchored{transform:translateX(-100%)}
.spectrum-midhint{font-family:var(--sans);color:var(--ink-3);font-size:10px}
.spectrum-scale{display:flex;justify-content:space-between;gap:10px;font-family:var(--mono);font-size:10px;color:var(--ink-3);margin-top:20px}

/* ---------- 表格 ---------- */
.table-card{padding:8px 12px}
.table-wrap{overflow-x:auto}
.dense-table{width:100%;border-collapse:collapse;font-size:13px}
.dense-table th{
  font-family:var(--mono);font-size:11px;text-transform:uppercase;color:var(--ink-3);
  text-align:left;padding:10px 10px;border-bottom:2px solid var(--line);white-space:nowrap;
}
.dense-table td{padding:9px 10px;border-bottom:1px solid var(--line);vertical-align:middle;white-space:normal;word-break:break-word}
.dense-table tr:last-child td{border-bottom:none}
.dense-table tbody tr:hover{background:var(--bg-soft)}
.dense-table .num{text-align:right;font-variant-numeric:tabular-nums}
.dense-table .num-th{text-align:right}
.major-cell{font-family:var(--mono);font-weight:700;font-size:15px}
.major-cell sup{font-size:9px;font-weight:600;color:var(--ink-3)}
.full-ver{font-family:var(--mono);font-size:11px;color:var(--ink-2)}
.date-cell{font-family:var(--mono);font-size:12px;color:var(--ink-2);white-space:nowrap}
.note-cell{color:var(--ink-2);font-size:12px;min-width:120px}
.perf-cell{display:flex;align-items:center;gap:8px;min-width:110px}
.perf-num{font-family:var(--mono);font-weight:700;font-size:12px;width:40px;text-align:right}
.perf-track{flex:1;height:6px;background:var(--bg-soft);border-radius:4px;overflow:hidden}
.perf-fill{height:100%;border-radius:4px}
.row-latest td{background:var(--green-soft)}
.row-user td{background:var(--blue-soft)}
.badge-tag{font-size:10px;font-weight:700;padding:1px 6px;border-radius:5px;margin-left:6px;vertical-align:2px}
.badge-tag.new{background:var(--c-green);color:#fff}
.badge-tag.you{background:var(--c-red);color:#fff}
b.err{color:var(--c-red)}

/* ---------- 性能曲线 ---------- */
.perf-card{}
.perf-chart{width:100%;overflow-x:auto}
.perf-chart svg{display:block;min-width:760px;width:100%;height:auto}
.perf-legend{display:flex;flex-direction:column;gap:10px;margin-top:10px;font-size:12px;color:var(--ink-2)}
.perf-legend i{display:inline-block;width:10px;height:10px;border-radius:3px;margin-right:6px;vertical-align:-1px}
.perf-chips{width:100%;min-width:0;display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 8px;margin-bottom:2px}
.perf-chips .chip-label{flex:none;font-size:11.5px;color:var(--ink-3);white-space:normal}
.cfg-chip{display:inline-block;font-size:11.5px;color:var(--ink-2);background:var(--bg-soft);border:1px solid var(--line);border-radius:20px;padding:3px 10px;text-decoration:none;line-height:1.4;max-width:100%;word-break:break-word}
.cfg-chip:hover{border-color:var(--c-blue);color:var(--c-blue);background:var(--blue-soft)}
#perfNote a{color:var(--c-blue);text-decoration:none;border-bottom:1px dotted #C6D8F6}
#perfNote a:hover{border-bottom-style:solid}
#perfNote b{color:var(--ink)}

/* ---------- 里程碑 ---------- */
.milestone-card{}
.milestone-line{display:flex;gap:0;overflow-x:auto;padding:6px 2px 18px;scrollbar-width:thin;scrollbar-color:#CBD5E1 transparent}
.milestone-line::-webkit-scrollbar{height:8px}
.milestone-line::-webkit-scrollbar-thumb{background:#CBD5E1;border-radius:4px}
.milestone-line::-webkit-scrollbar-thumb:hover{background:#B4C2D6}
.milestone-line::-webkit-scrollbar-track{background:transparent}
.m-node{
  flex:0 0 auto;min-width:150px;max-width:250px;position:relative;padding:0 12px 34px 12px;text-align:center;
}
.m-node::before{
  content:"";position:absolute;left:50%;bottom:12px;transform:translateX(-50%);
  width:10px;height:10px;border-radius:50%;background:var(--c-blue);border:3px solid var(--card);
  box-shadow:0 0 0 2px var(--c-blue);
}
.m-node:hover::before{background:var(--c-red);box-shadow:0 0 0 2px var(--c-red)}
.m-node::after{
  content:"";position:absolute;left:50%;bottom:17px;width:100%;
  border-top:2px dashed var(--line-2);
}
.m-node:first-child::after{left:50%;width:50%}
.m-node:last-child::after{width:50%}
.m-num{font-family:var(--mono);font-weight:700;font-size:16px}
.m-date{font-family:var(--mono);font-size:11px;color:var(--c-blue);margin-top:2px}
.m-note{font-size:12px;color:var(--ink-2);margin-top:6px;line-height:1.4;word-break:break-word}

/* ---------- 时间线 ---------- */
.timeline-card{padding:8px 20px 20px}
.timeline-list{position:relative;padding-left:26px}
.timeline-list::before{
  content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;background:var(--line-2);
}
.tl-item{position:relative;padding:14px 0 14px 8px;border-bottom:1px solid var(--line)}
.tl-item:last-child{border-bottom:none}
.tl-item::before{
  content:"";position:absolute;left:-25px;top:22px;width:12px;height:12px;border-radius:50%;
  background:var(--card);border:3px solid var(--ink-3);
}
.tl-item.tl-r::before{border-color:var(--c-red)}
.tl-item.tl-g::before{border-color:var(--c-green)}
.tl-item.tl-b::before{border-color:var(--c-blue)}
.tl-item.tl-y::before{border-color:var(--c-yellow)}
.tl-date{font-family:var(--mono);font-size:12px;font-weight:600;color:var(--ink-2)}
.tl-title{font-weight:700;font-size:14px;margin-top:2px}
.tl-title .tl-tag{font-size:10px;font-weight:700;padding:1px 7px;border-radius:5px;margin-left:8px;vertical-align:1px}
.tl-tag.r{background:var(--red-soft);color:#C62828}
.tl-tag.g{background:var(--green-soft);color:#1E7E3C}
.tl-tag.b{background:var(--blue-soft);color:var(--c-blue)}
.tl-tag.y{background:var(--yellow-soft);color:#9A6B00}
.tl-desc{font-size:12.5px;color:var(--ink-2);margin-top:3px;max-width:880px}

/* ---------- 更新日志弹层 ---------- */
.modal-overlay{position:fixed;inset:0;background:rgba(15,23,42,.45);backdrop-filter:blur(3px);display:flex;align-items:center;justify-content:center;z-index:100;padding:20px}
.modal{background:var(--card);border-radius:16px;box-shadow:0 20px 60px rgba(15,23,42,.25);max-width:640px;width:100%;max-height:82vh;display:flex;flex-direction:column;overflow:hidden;animation:modalIn .18s ease}
@keyframes modalIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}
.modal-head{position:relative;padding:20px 22px 14px;border-bottom:1px solid var(--line)}
.modal-kicker{font-family:var(--mono);font-size:10px;font-weight:700;color:var(--c-blue);letter-spacing:1px}
.modal-title{font-size:22px;font-weight:800;margin-top:4px}
.modal-meta{font-family:var(--mono);font-size:12px;color:var(--ink-3);margin-top:4px}
.modal-close{position:absolute;top:14px;right:14px;width:32px;height:32px;border:1px solid var(--line);background:var(--bg-soft);border-radius:8px;font-size:18px;color:var(--ink-2);cursor:pointer;line-height:1}
.modal-close:hover{background:var(--red-soft);color:#C62828;border-color:#F4C7C3}
.modal-body{overflow-y:auto;padding:14px 22px 8px}
.cl-list{list-style:none;margin:0;padding:0}
.cl-list li{position:relative;padding:8px 0 8px 22px;border-bottom:1px dashed var(--line);font-size:13.5px;color:var(--ink)}
.cl-list li::before{content:"";position:absolute;left:2px;top:14px;width:8px;height:8px;border-radius:3px;background:var(--c-blue)}
.modal-foot{padding:12px 22px 18px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:8px}
.btn-link{display:inline-block;font-size:12.5px;font-weight:600;color:var(--c-blue);background:var(--blue-soft);border:1px solid #C6D8F6;padding:6px 12px;border-radius:8px;text-decoration:none}
.btn-link:hover{background:#DCE9FD}

/* ---------- 表格日志按钮与可点击行 ---------- */
.btn-log{font-size:12px;font-weight:600;color:var(--c-blue);background:var(--blue-soft);border:1px solid #C6D8F6;border-radius:7px;padding:4px 10px;cursor:pointer;white-space:nowrap}
.btn-log:hover{background:#DCE9FD}
.dense-table tr.log-row{cursor:pointer}
.dense-table tr.log-row:hover td{background:var(--bg-soft)}
.dense-table tr.log-row:focus-visible{outline:2px solid var(--c-blue);outline-offset:-2px}
#historyTable .log-row .note-cell{position:relative;padding-right:20px}
#historyTable .log-row .note-cell::after{content:"›";position:absolute;right:8px;top:50%;transform:translateY(-56%);color:var(--c-blue);opacity:0;transition:opacity .12s;font-size:17px;line-height:1}
#historyTable .log-row:hover .note-cell::after,#historyTable .log-row:focus-visible .note-cell::after{opacity:1}
@media (max-width:420px){ .modal{max-height:88vh} }

/* ---------- Footer ---------- */
.footer{border-top:1px solid var(--line);background:var(--card);margin-top:48px}
.footer-inner{max-width:1200px;margin:0 auto;padding:26px 20px}
.footer-brand{font-weight:800;font-size:15px;margin-bottom:8px}
.footer p{color:var(--ink-2);font-size:12px;line-height:1.75;max-width:900px;margin-top:6px}
.footer-dim{color:var(--ink-3)!important;font-family:var(--mono);font-size:11px!important}

/* ---------- 响应式 ---------- */
html{-webkit-text-size-adjust:100%}
a,button,.log-row{-webkit-tap-highlight-color:transparent;touch-action:manipulation}

@media (max-width:940px){
  .hero-grid{grid-template-columns:1fr}
  .nav{display:none}
  .brand-sub{display:none}
}
@media (max-width:680px){
  main{padding:0 12px 36px}
  .card{padding:14px}
  .hide-sm{display:none}
  .kv{grid-template-columns:1fr}
  .compare-vs{flex-direction:column;align-items:stretch}
  .cmp-gap{align-self:flex-start}
  .status-row{flex-wrap:wrap}
  .status-row .s-desc{margin-left:0;width:100%;text-align:left}
  .section{margin-top:34px}
  .section-head h2{font-size:18px}
  .cmp-value{font-size:24px}
  .spectrum{height:50px}
  .spectrum-scale{margin-top:16px}
}
@media (max-width:560px){
  #historyTable .btn-log{font-size:0;width:34px;height:34px;padding:0;border-radius:9px;position:relative}
  #historyTable .btn-log::after{content:"日志";font-size:12px;font-weight:600;color:var(--c-blue)}
  #historyTable .note-cell{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .row-latest td{background:var(--green-soft)}
  .row-user td{background:var(--blue-soft)}
  .modal{padding:0}
  .modal-head{padding:16px 16px 12px}
  .modal-body{padding:10px 16px 4px}
  .modal-foot{padding:10px 16px 14px}
  .cfg-chip{font-size:11px;padding:3px 8px}
  .perf-chips{row-gap:6px}
}
/* 手机上“你”旗标退化为圆点，避免与“最新”重叠 */
@media (max-width:560px){
  .spectrum-flag.your{width:11px;height:11px;padding:0;font-size:0;border-radius:50%;top:50%;bottom:auto;transform:translate(-50%,-50%)!important;box-shadow:none;border:2px solid #fff}
  .spectrum-scale{flex-wrap:wrap;row-gap:6px}
}
@media (max-width:940px){ .hide-md{display:none} }
@media (max-width:560px){ .hide-xs{display:none} }
@media (max-width:420px){ .topbar-live{display:none} }

@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  html{scroll-behavior:auto}
}