:root,
html[data-theme="dark"]{
  color-scheme:dark;

  /* canvas / surfaces */
  --bg:#0b0d10;
  --bg2:#101318;
  --panel:#11151a;
  --panel2:#171c22;
  --hover:#14191f;
  --header-bg:rgba(11,13,16,.93);

  /* foreground */
  --text:#f4f6f8;
  --muted:#a5adb7;
  --muted2:#737c87;

  /* structure */
  --line:#293039;
  --line-strong:#404954;

  /* brand / status */
  --accent:#58c9ff;
  --accent2:#7963ff;
  --success:#78d5a2;
  --warn:#e8b45e;

  /* controls */
  --control-bg:rgba(255,255,255,.035);
  --button-bg:#f1f3f5;
  --button-text:#101216;

  /* mock interface */
  --ui-muted:#242b33;
  --ui-muted-strong:#303944;

  /* misc */
  --inverse-bg:#f1f3f5;
  --inverse-text:#101216;
  --grid:rgba(255,255,255,.020);
  --grid2:rgba(255,255,255,.013);

  --max:1240px;
}

html[data-theme="light"]{
  color-scheme:light;

  /* deliberately dimmed warm-gray light theme */
  --bg:#d7d4cd;
  --bg2:#cbc8c0;
  --panel:#e1ded7;
  --panel2:#c6c3bb;
  --hover:#cbc8c0;
  --header-bg:rgba(215,212,205,.94);

  /* dark foreground on light canvas */
  --text:#15171a;
  --muted:#494f57;
  --muted2:#666d76;

  /* stronger dividers so the editorial grid remains visible */
  --line:#aaa69e;
  --line-strong:#7f7a72;

  --accent:#006e98;
  --accent2:#5142b9;
  --success:#236f4c;
  --warn:#8b5c18;

  --control-bg:rgba(0,0,0,.040);
  --button-bg:#15171a;
  --button-text:#f2f0ea;

  --ui-muted:#9d9990;
  --ui-muted-strong:#89857c;

  --inverse-bg:#15171a;
  --inverse-text:#f2f0ea;
  --grid:rgba(0,0,0,.052);
  --grid2:rgba(0,0,0,.034);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  min-width:320px;
  color:var(--text);
  background:
    linear-gradient(var(--grid) 1px,transparent 1px),
    linear-gradient(90deg,var(--grid2) 1px,transparent 1px),
    var(--bg);
  background-size:48px 48px;
  font-family:"Segoe UI","Microsoft YaHei UI","Microsoft YaHei",system-ui,sans-serif;
  line-height:1.6;
}
a{text-decoration:none;color:inherit}
button,input{font:inherit}
button{color:inherit}
.shell{width:min(var(--max),calc(100% - 48px));margin:auto}
.mono{font-family:Consolas,"SFMono-Regular","Roboto Mono",monospace;letter-spacing:.055em}

.site-header{
  position:sticky;top:0;z-index:50;
  background:var(--header-bg);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{height:72px;display:flex;align-items:center}
.brand{display:flex;align-items:center;gap:11px;font-size:18px;font-weight:700;letter-spacing:-.02em}
.brand img{width:32px;height:32px;border-radius:8px;display:block}
.main-nav{margin-left:auto;display:flex;align-items:center;gap:28px}
.main-nav a,.header-cta{font-family:Consolas,monospace;font-size:11px;letter-spacing:.07em;color:var(--muted)}
.main-nav a:hover,.header-cta:hover{color:var(--text)}
.header-cta{margin-left:32px;padding-left:24px;border-left:1px solid var(--line)}

.hero{padding:92px 0 42px}
.hero-kicker{font-size:11px;color:var(--muted2);padding-bottom:18px;border-bottom:1px solid var(--line)}
.hero-grid{display:grid;grid-template-columns:1.45fr .55fr;gap:80px;padding:46px 0 58px;border-bottom:1px solid var(--line)}
.hero h1{
  margin:0;
  font-size:clamp(68px,9vw,132px);
  line-height:.86;
  letter-spacing:-.075em;
  font-weight:750;
}
.hero-cn{margin:30px 0 0;font-size:22px;line-height:1.55;color:var(--muted)}
.hero-spec,.product-spec{border-top:1px solid var(--line-strong)}
.spec-row{display:grid;grid-template-columns:110px 1fr;gap:18px;padding:14px 0;border-bottom:1px solid var(--line)}
.spec-row span{font-family:Consolas,monospace;font-size:10px;color:var(--muted2);letter-spacing:.08em}
.spec-row b{font-family:Consolas,monospace;font-size:11px;font-weight:500;letter-spacing:.035em}
.hero-foot{display:flex;justify-content:space-between;align-items:center;padding-top:18px}
.text-link{font-family:Consolas,monospace;font-size:11px;letter-spacing:.06em}
.text-link:hover{color:var(--accent)}
.hero-foot>span{font-size:10px;color:var(--muted2)}

.section{padding:105px 0;border-top:1px solid var(--line)}
.section-head{display:grid;grid-template-columns:1fr 420px;gap:60px;align-items:end;margin-bottom:50px}
.section-head>div{display:flex;align-items:flex-end;gap:20px}
.section-no{font-size:12px;color:var(--accent);padding-bottom:10px}
.section-head h2{font-size:clamp(38px,5vw,66px);line-height:.95;letter-spacing:-.055em;margin:0}
.section-head>p{margin:0;color:var(--muted);font-size:13px;max-width:420px}

.product-tools{display:flex;justify-content:space-between;gap:24px;align-items:center;padding:18px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.filters,.notice-tabs{display:flex;gap:18px;flex-wrap:wrap}
.filter,.notice-tab{
  border:0;background:none;padding:0;cursor:pointer;
  font-family:Consolas,monospace;font-size:10px;letter-spacing:.07em;color:var(--muted2)
}
.filter.active,.filter:hover,.notice-tab.active,.notice-tab:hover{color:var(--text)}
.search-line{display:flex;align-items:center;gap:10px}
.search-line span{font-size:10px;color:var(--muted2)}
.search-line input{width:220px;border:0;border-bottom:1px solid var(--line-strong);outline:0;background:none;color:var(--text);padding:5px 0;font-family:Consolas,monospace;font-size:10px;letter-spacing:.05em}
.search-line input::placeholder{color:var(--muted2)}

.product-index{border-bottom:1px solid var(--line)}
.product-row{
  display:grid;
  grid-template-columns:70px 74px 1.2fr 1.7fr 170px 40px;
  gap:22px;align-items:center;
  min-height:118px;
  border-top:1px solid var(--line);
  transition:.18s;
}
.product-row:hover{background:var(--hover)}
.product-row:hover .product-arrow{transform:translate(3px,-3px);color:var(--accent)}
.product-number{font-size:10px;color:var(--muted2)}
.product-icon{width:52px;height:52px;border-radius:12px;display:grid;place-items:center;font-weight:800;font-size:17px}
.product-name h3{font-size:25px;letter-spacing:-.035em;margin:0 0 2px}
.product-name span{font-size:10px;color:var(--muted2)}
.product-description{color:var(--muted);font-size:12px;line-height:1.75}
.product-state{display:grid;gap:5px;font-family:Consolas,monospace;font-size:10px}
.product-state b{font-weight:500}
.product-state span{color:var(--muted2)}
.product-arrow{font-size:22px;text-align:right;transition:.18s}
.loading-row{padding:30px 0;color:var(--muted2);font-size:10px}

.global-notice{display:grid;grid-template-columns:150px 1fr 130px;gap:34px;padding:28px 0;border-top:1px solid var(--line-strong);border-bottom:1px solid var(--line)}
.notice-meta{display:flex;align-items:flex-start;gap:10px;flex-direction:column}
.notice-scope,.notice-type,.notice-important{
  width:max-content;
  font-family:Consolas,monospace;font-size:9px;letter-spacing:.06em;
  border:1px solid var(--line-strong);padding:4px 7px
}
.notice-scope{color:var(--accent)}
.notice-meta .mono{font-size:10px;color:var(--muted2)}
.notice-copy h3{font-size:23px;margin:0 0 7px;letter-spacing:-.025em}
.notice-copy p{color:var(--muted);font-size:13px;margin:0}
.global-notice>.text-link{justify-self:end;align-self:center}

.principle-grid{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line-strong);border-bottom:1px solid var(--line)}
.principle-grid article{padding:28px 30px 32px 0;border-right:1px solid var(--line)}
.principle-grid article+article{padding-left:30px}
.principle-grid article:last-child{border-right:0}
.principle-grid span{font-size:9px;color:var(--accent)}
.principle-grid h3{font-size:21px;margin:36px 0 8px;letter-spacing:-.025em}
.principle-grid p{margin:0;color:var(--muted);font-size:12px;line-height:1.8}

.site-footer{border-top:1px solid var(--line);padding:30px 0 42px}
.footer-inner{display:grid;grid-template-columns:1fr auto auto;align-items:center;gap:30px}
.footer-brand{font-size:16px}.footer-brand img{width:28px;height:28px}
.footer-inner>.mono{font-size:9px;color:var(--muted2)}

.product-hero{padding:80px 0 105px}
.product-breadcrumb{font-size:10px;color:var(--muted2);padding-bottom:18px;border-bottom:1px solid var(--line)}
.product-title-grid{display:grid;grid-template-columns:1.4fr .6fr;gap:90px;padding:44px 0 42px}
.product-symbol{
  width:68px;height:68px;border-radius:14px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--accent),var(--accent2));
  color:#fff;font-size:23px;font-weight:800;margin-bottom:24px
}
.product-title-grid h1{font-size:clamp(64px,9vw,126px);line-height:.88;letter-spacing:-.075em;margin:0}
.product-tagline{font-size:21px;color:var(--muted);margin:24px 0 0}
.product-intro{display:grid;grid-template-columns:1fr 330px;gap:90px;padding:0 0 42px}
.product-intro>p{max-width:720px;color:var(--muted);font-size:14px;line-height:1.9;margin:0}
.product-actions{display:flex;align-items:flex-start;gap:18px;flex-direction:column}
.editorial-button{
  min-height:48px;display:inline-flex;align-items:center;justify-content:center;
  padding:0 17px;border:1px solid var(--button-bg);background:var(--button-bg);color:var(--button-text);
  font-family:Consolas,monospace;font-size:10px;letter-spacing:.06em;transition:.18s
}
.editorial-button:hover{background:var(--accent);border-color:var(--accent)}

.interface-board{border:1px solid var(--line-strong);background:var(--panel)}
.interface-top{height:44px;display:flex;align-items:center;justify-content:space-between;padding:0 16px;border-bottom:1px solid var(--line);color:var(--muted2);font-size:9px}
.interface-body{display:grid;grid-template-columns:86px 1fr;height:370px}
.interface-nav{border-right:1px solid var(--line);display:flex;flex-direction:column;gap:17px;padding:28px}
.interface-nav i{width:28px;height:6px;background:var(--ui-muted)}
.interface-nav i.active{background:linear-gradient(90deg,var(--accent),var(--accent2))}
.interface-main{padding:34px}
.ui-head{display:flex;justify-content:space-between;align-items:center}
.ui-head i{width:170px;height:16px;background:var(--ui-muted)}
.ui-head span{width:90px;height:28px;border:1px solid var(--line)}
.ui-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:28px}
.ui-stats i,.ui-grid i{display:block;border:1px solid var(--line);background:var(--panel2)}
.ui-stats i{height:76px}
.ui-grid{display:grid;grid-template-columns:1.5fr .7fr;gap:14px;margin-top:14px}
.ui-grid i{height:170px}

.feature-index{border-bottom:1px solid var(--line)}
.feature-row{display:grid;grid-template-columns:100px 280px 1fr;gap:26px;padding:24px 0;border-top:1px solid var(--line)}
.feature-row .mono{font-size:10px;color:var(--accent)}
.feature-row h3{font-size:20px;margin:0;letter-spacing:-.02em}
.feature-row p{margin:0;color:var(--muted);font-size:12px}

.notice-toolbar{display:flex;align-items:center;justify-content:space-between;padding:16px 0;border-top:1px solid var(--line-strong);border-bottom:1px solid var(--line)}
.notice-toolbar>#noticeCount{font-size:9px;color:var(--muted2)}
.product-notice-list{border-bottom:1px solid var(--line)}
.product-notice-row{display:grid;grid-template-columns:190px 1fr 120px;gap:30px;padding:24px 0;border-top:1px solid var(--line)}
.product-notice-meta{display:flex;gap:7px;align-items:flex-start;flex-wrap:wrap}
.notice-type.update{color:var(--success)}
.notice-type.maintenance{color:var(--warn)}
.notice-important{color:var(--accent)}
.product-notice-row h3{font-size:19px;margin:0 0 6px}
.product-notice-row p{margin:0;color:var(--muted);font-size:12px}
.notice-date{font-family:Consolas,monospace;font-size:10px;color:var(--muted2);justify-self:end}
.notice-details{margin-top:12px}
.notice-details summary{font-family:Consolas,monospace;font-size:10px;cursor:pointer;color:var(--accent)}
.notice-details ul{margin:10px 0 0;padding-left:18px;color:var(--muted);font-size:11px;line-height:1.8}
.notice-empty{padding:30px 0;color:var(--muted2);font-size:11px}

.changelog-index{border-bottom:1px solid var(--line)}
.changelog-row{display:grid;grid-template-columns:180px 280px 1fr;gap:30px;padding:28px 0;border-top:1px solid var(--line)}
.changelog-row .version{font-size:24px;letter-spacing:-.03em}
.changelog-row .date{font-family:Consolas,monospace;font-size:10px;color:var(--muted2);margin-top:5px}
.changelog-row h3{font-size:19px;margin:0}
.changelog-row ul{margin:0;padding-left:18px;color:var(--muted);font-size:12px;line-height:1.85}

.download-strip{display:flex;justify-content:space-between;gap:40px;align-items:end;padding:34px 0;border-top:1px solid var(--line-strong);border-bottom:1px solid var(--line)}
.download-strip .mono{font-size:9px;color:var(--accent)}
.download-strip h2{font-size:44px;letter-spacing:-.045em;margin:10px 0 5px}
.download-strip p{margin:0;color:var(--muted);font-size:12px}

.not-found{padding:130px 0}.not-found .mono{color:var(--accent);font-size:10px}.not-found h1{font-size:72px;letter-spacing:-.06em;margin:12px 0}.not-found p{color:var(--muted);margin-bottom:25px}
.toast{position:fixed;left:50%;bottom:24px;transform:translate(-50%,15px);opacity:0;pointer-events:none;background:var(--inverse-bg);color:var(--inverse-text);padding:10px 14px;font-family:Consolas,monospace;font-size:10px;transition:.2s;z-index:100}.toast.show{opacity:1;transform:translate(-50%,0)}

@media(max-width:980px){
  .main-nav{display:none}
  .hero-grid,.product-title-grid,.product-intro{grid-template-columns:1fr;gap:44px}
  .section-head{grid-template-columns:1fr;gap:24px}
  .product-row{grid-template-columns:56px 60px 1fr 130px 30px}
  .product-description{display:none}
  .principle-grid{grid-template-columns:1fr}
  .principle-grid article,.principle-grid article+article{padding:26px 0;border-right:0;border-bottom:1px solid var(--line)}
  .principle-grid article:last-child{border-bottom:0}
  .footer-inner{grid-template-columns:1fr 1fr}.footer-inner>:last-child{grid-column:1/-1}
}
@media(max-width:680px){
  .shell{width:min(100% - 28px,var(--max))}
  .header-inner{height:62px}.header-cta{margin-left:auto}
  .hero{padding-top:62px}.hero h1{font-size:58px}.hero-cn{font-size:18px}
  .hero-foot{align-items:flex-start;gap:18px;flex-direction:column}
  .section{padding:76px 0}
  .section-head h2{font-size:42px}
  .product-tools{align-items:flex-start;flex-direction:column}.search-line{width:100%}.search-line input{flex:1}
  .product-row{grid-template-columns:42px 52px 1fr 24px;gap:14px;min-height:96px}
  .product-state{display:none}.product-name h3{font-size:20px}
  .global-notice{grid-template-columns:1fr;gap:18px}.global-notice>.text-link{justify-self:start}
  .product-title-grid h1{font-size:56px}
  .interface-body{grid-template-columns:54px 1fr;height:300px}.interface-nav{padding:22px 13px}.interface-main{padding:22px}.ui-grid i{height:120px}
  .feature-row{grid-template-columns:52px 1fr}.feature-row p{grid-column:2}
  .product-notice-row{grid-template-columns:1fr}.notice-date{justify-self:start}
  .changelog-row{grid-template-columns:1fr;gap:12px}.download-strip{align-items:flex-start;flex-direction:column}.download-strip h2{font-size:35px}
  .footer-inner{grid-template-columns:1fr;gap:16px}.footer-inner>:last-child{grid-column:auto}
}


.header-controls{
  margin-left:28px;
  display:flex;
  align-items:center;
  gap:8px;
}
.control-btn{
  min-height:34px;
  display:inline-flex;
  align-items:center;
  gap:7px;
  border:1px solid var(--line);
  background:var(--control-bg);
  color:var(--muted);
  padding:0 10px;
  cursor:pointer;
  font-family:Consolas,"Microsoft YaHei UI",monospace;
  font-size:10px;
  letter-spacing:.035em;
  transition:.16s;
}
.control-btn:hover{
  color:var(--text);
  border-color:var(--line-strong);
}
.lang-current{color:var(--text)}
.control-sep{color:var(--muted2)}
.theme-icon{font-size:13px;line-height:1}

html,body,.site-header,.product-row,.editorial-button,.control-btn{
  transition:background-color .22s ease,color .22s ease,border-color .22s ease;
}
@media(max-width:980px){
  .header-controls{margin-left:auto}
}
@media(max-width:680px){
  .header-controls{gap:5px}
  .control-btn{padding:0 8px}
  .theme-label{display:none}
}


.theme-toggle{
  min-width:74px;
  justify-content:center;
}
.theme-toggle .theme-icon{
  width:14px;
  text-align:center;
}


/* =========================================================
   Theme-safe semantic component colors
   Components below never choose black/white by theme.
   They only consume semantic tokens above.
   ========================================================= */
body{
  color:var(--text);
  background:
    linear-gradient(var(--grid) 1px,transparent 1px),
    linear-gradient(90deg,var(--grid2) 1px,transparent 1px),
    var(--bg);
}

.site-header{background:var(--header-bg)}

.hero h1,
.section-head h2,
.product-title-grid h1,
.product-name h3,
.notice-copy h3,
.feature-row h3,
.product-notice-row h3,
.changelog-row h3,
.principle-grid h3{
  color:var(--text);
}

.hero-cn,
.product-tagline{
  color:var(--muted);
}

.section-head>p,
.product-description,
.notice-copy p,
.principle-grid p,
.feature-row p,
.product-notice-row p,
.changelog-row ul,
.product-intro>p,
.download-strip p{
  color:var(--muted);
}

.hero-kicker,
.hero-foot>span,
.product-number,
.product-name span,
.product-state span,
.search-line span,
.notice-meta .mono,
.notice-date,
.notice-toolbar>#noticeCount,
.product-breadcrumb,
.footer-inner>.mono{
  color:var(--muted2);
}

.spec-row span{color:var(--muted2)}
.spec-row b{color:var(--text)}

.filter,.notice-tab{color:var(--muted2)}
.filter.active,.filter:hover,
.notice-tab.active,.notice-tab:hover{color:var(--text)}

.search-line input{
  color:var(--text);
  border-color:var(--line-strong);
}
.search-line input::placeholder{color:var(--muted2)}

.product-row:hover{background:var(--hover)}

.control-btn{
  background:var(--control-bg);
  color:var(--muted);
  border-color:var(--line);
}
.control-btn:hover{
  color:var(--text);
  border-color:var(--line-strong);
}
.lang-current{color:var(--text)}

.editorial-button{
  background:var(--button-bg);
  color:var(--button-text);
  border-color:var(--button-bg);
}
.editorial-button:hover{
  background:var(--accent);
  border-color:var(--accent);
  color:#fff;
}

.interface-board{
  background:var(--panel);
  border-color:var(--line-strong);
}
.interface-top{
  background:var(--panel2);
  color:var(--muted2);
  border-color:var(--line);
}
.interface-nav{
  background:var(--panel2);
  border-color:var(--line);
}
.interface-nav i,
.ui-head i{
  background:var(--ui-muted);
}
.interface-nav i.active{
  background:linear-gradient(90deg,var(--accent),var(--accent2));
}
.ui-head span,
.ui-stats i,
.ui-grid i{
  background:var(--panel2);
  border-color:var(--line-strong);
}

.toast{
  background:var(--inverse-bg);
  color:var(--inverse-text);
}

html[data-theme="light"] .brand img{
  box-shadow:0 0 0 1px rgba(0,0,0,.14),0 2px 7px rgba(0,0,0,.07);
}
html[data-theme="dark"] .brand img{
  box-shadow:0 0 0 1px rgba(255,255,255,.08);
}


/* =========================================================
   Technical Editorial — visual polish v3
   ========================================================= */

/* More nuanced dark canvas without turning back into glassmorphism */
html[data-theme="dark"]{
  --bg:#090b0e;
  --bg2:#0d1116;
  --panel:#10141a;
  --panel2:#151a21;
  --hover:#121821;
  --line:#252d36;
  --line-strong:#3d4854;
  --text:#f3f5f7;
  --muted:#a1a9b3;
  --muted2:#6f7a86;
  --accent:#55c9ff;
  --accent2:#7b63ff;
  --grid:rgba(88,201,255,.018);
  --grid2:rgba(123,99,255,.012);
}

body{
  position:relative;
  overflow-x:hidden;
}

/* subtle editorial glow, not SaaS glass */
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-2;
  pointer-events:none;
  background:
    radial-gradient(900px 420px at 16% 4%, rgba(84,198,255,.055), transparent 62%),
    radial-gradient(760px 420px at 82% 18%, rgba(123,99,255,.045), transparent 66%);
}

body::after{
  content:"";
  position:fixed;
  left:50%;
  top:0;
  width:1px;
  height:100vh;
  background:linear-gradient(to bottom,transparent,var(--line),transparent);
  opacity:.18;
  z-index:-1;
  pointer-events:none;
}

/* Header gains structure, still minimal */
.site-header{
  border-bottom-color:var(--line);
}
.header-inner{
  position:relative;
}
.header-inner::after{
  content:"";
  position:absolute;
  left:0;
  bottom:-1px;
  width:72px;
  height:1px;
  background:linear-gradient(90deg,var(--accent),var(--accent2));
}

/* Hero spacing and Chinese headline fix */
.hero{
  position:relative;
  padding-top:86px;
}
.hero-kicker{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.hero-kicker-mark{
  color:var(--accent);
}
.hero-grid{
  position:relative;
  grid-template-columns:minmax(0,1.25fr) minmax(300px,.75fr);
  gap:76px;
  padding-top:54px;
}
.hero-title-wrap{
  position:relative;
  padding-left:34px;
}
.hero-title-wrap::before{
  content:"";
  position:absolute;
  left:0;
  top:6px;
  width:3px;
  height:78px;
  background:linear-gradient(var(--accent),var(--accent2));
}
.hero h1{
  max-width:860px;
  font-weight:760;
}

/* Critical fix: Chinese needs much more line-height than Latin */
.hero-title-cn{
  display:block;
  font-family:"Microsoft YaHei UI","Microsoft YaHei","PingFang SC","Noto Sans CJK SC","Segoe UI",sans-serif;
  font-size:clamp(68px,7.7vw,118px);
  line-height:1.12;
  letter-spacing:-.065em;
  font-weight:780;
  text-wrap:balance;
}
html[data-lang="en"] .hero-title-cn{
  font-family:"Segoe UI",system-ui,sans-serif;
  font-size:clamp(68px,9vw,132px);
  line-height:.92;
  letter-spacing:-.075em;
}

.hero-cn{
  margin-top:34px;
  padding-left:2px;
  font-size:20px;
  line-height:1.8;
  letter-spacing:.015em;
}
.hero-spec{
  align-self:start;
  background:linear-gradient(180deg,rgba(255,255,255,.018),transparent);
  padding:0 18px 10px;
  border-left:1px solid var(--line);
}
.spec-row{
  grid-template-columns:94px 1fr;
  padding:16px 0;
}

.hero-accent-panel{
  position:absolute;
  right:0;
  bottom:-72px;
  width:310px;
  padding:18px 20px;
  border:1px solid var(--line);
  background:var(--panel);
  z-index:2;
}
.hero-accent-panel .accent-code{
  font-size:9px;
  color:var(--accent);
}
.hero-accent-panel .accent-line{
  height:1px;
  margin:14px 0;
  background:linear-gradient(90deg,var(--accent),var(--accent2),transparent);
}
.hero-accent-panel p{
  margin:0;
  color:var(--muted);
  font-size:11px;
  line-height:1.75;
}

.hero-rail{
  position:absolute;
  left:-54px;
  top:162px;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:11px;
  color:var(--muted2);
  font-family:Consolas,monospace;
  font-size:8px;
  letter-spacing:.14em;
}
.hero-rail i{
  width:1px;
  height:88px;
  background:linear-gradient(var(--accent),var(--accent2));
}
.hero-rail span:last-child{
  writing-mode:vertical-rl;
  transform:rotate(180deg);
}

/* Section framing gives stronger editorial rhythm */
.section-framed{
  position:relative;
}
.section-framed::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  width:84px;
  height:1px;
  background:linear-gradient(90deg,var(--accent),transparent);
}
.section-head{
  position:relative;
}
.section-head::after{
  content:"";
  position:absolute;
  right:0;
  bottom:-20px;
  width:72px;
  height:2px;
  background:linear-gradient(90deg,var(--accent),var(--accent2));
  opacity:.8;
}

/* Product index: richer hierarchy without cardification */
.product-row{
  position:relative;
  padding:4px 18px 4px 0;
}
.product-row::before{
  content:"";
  position:absolute;
  left:0;
  top:0;
  width:0;
  height:100%;
  background:linear-gradient(180deg,var(--accent),var(--accent2));
  transition:.18s;
}
.product-row:hover::before{
  width:2px;
}
.product-row:hover{
  padding-left:16px;
}
.product-number{
  font-size:11px;
}
.product-icon{
  border-radius:10px;
  box-shadow:0 0 0 1px rgba(255,255,255,.05);
}
.product-name h3{
  font-size:27px;
}
.product-state{
  padding-left:14px;
  border-left:1px solid var(--line);
}

/* Global notice gets a strong visual anchor */
.global-notice{
  position:relative;
  padding:34px 24px 34px 0;
}
.global-notice::before{
  content:"";
  position:absolute;
  left:0;
  top:0;
  width:2px;
  height:100%;
  background:linear-gradient(var(--accent),var(--accent2));
}
.global-notice .notice-meta{
  padding-left:18px;
}

/* Principles feel more like an editorial spread */
.principle-grid article{
  position:relative;
  min-height:220px;
}
.principle-grid article::after{
  content:"";
  position:absolute;
  right:18px;
  bottom:18px;
  width:26px;
  height:26px;
  border-right:1px solid var(--line);
  border-bottom:1px solid var(--line);
}

/* Product detail visual polish */
.product-hero-polished{
  position:relative;
}
.product-side-index{
  position:absolute;
  left:-52px;
  top:150px;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:10px;
  color:var(--muted2);
  font-size:8px;
  letter-spacing:.12em;
}
.product-side-index i{
  width:1px;
  height:70px;
  background:linear-gradient(var(--accent),var(--accent2));
}
.product-side-index span{
  writing-mode:vertical-rl;
  transform:rotate(180deg);
}

.product-title-grid{
  position:relative;
}
.product-title-grid::after{
  content:"";
  position:absolute;
  left:0;
  bottom:12px;
  width:38%;
  height:1px;
  background:linear-gradient(90deg,var(--accent),transparent);
}
.product-title-grid h1{
  line-height:.98;
}
.product-symbol{
  border-radius:12px;
  box-shadow:0 0 0 1px rgba(255,255,255,.06),0 10px 30px rgba(0,0,0,.18);
}

/* Make mock UI less flat */
.interface-board{
  box-shadow:0 26px 70px rgba(0,0,0,.16);
}
.interface-main{
  position:relative;
}
.interface-main::after{
  content:"";
  position:absolute;
  right:18px;
  top:18px;
  width:42px;
  height:42px;
  border-top:1px solid var(--accent);
  border-right:1px solid var(--accent2);
  opacity:.7;
}

/* Typographic spacing for all large Chinese headings */
html[lang="zh-CN"] .section-head h2,
html[lang="zh-CN"] .download-strip h2,
html[lang="zh-CN"] .not-found h1{
  line-height:1.16;
  letter-spacing:-.04em;
}
html[lang="zh-CN"] .product-title-grid h1{
  line-height:1.08;
  letter-spacing:-.05em;
}

/* Light theme keeps editorial character */
html[data-theme="light"] body::before{
  background:
    radial-gradient(800px 380px at 14% 6%, rgba(0,110,152,.055), transparent 62%),
    radial-gradient(700px 360px at 82% 18%, rgba(81,66,185,.04), transparent 65%);
}
html[data-theme="light"] .hero-spec,
html[data-theme="light"] .hero-accent-panel{
  background:rgba(255,255,255,.15);
}
html[data-theme="light"] .product-icon{
  box-shadow:0 0 0 1px rgba(0,0,0,.08);
}

/* Responsive */
@media(max-width:1320px){
  .hero-rail,.product-side-index{display:none}
}
@media(max-width:980px){
  .hero-grid{
    grid-template-columns:1fr;
  }
  .hero-accent-panel{
    position:static;
    width:100%;
    margin-top:18px;
  }
  .hero-title-wrap{
    padding-left:24px;
  }
}
@media(max-width:680px){
  .hero-title-cn{
    font-size:clamp(48px,15vw,72px);
    line-height:1.16;
    letter-spacing:-.055em;
  }
  html[data-lang="en"] .hero-title-cn{
    font-size:54px;
    line-height:.98;
  }
  .hero-title-wrap{
    padding-left:18px;
  }
  .hero-title-wrap::before{
    height:58px;
  }
  .hero-cn{
    font-size:17px;
    line-height:1.75;
  }
}


/* =========================================================
   Visual Readability v4
   Bigger technical type + stronger Seqvia wordmark
   ========================================================= */

/* Brand: use title case and more presence */
.brand{
  gap:12px;
  font-size:20px;
  font-weight:760;
  letter-spacing:-.025em;
}
.brand span{
  transform:translateY(-.5px);
}
.brand img{
  width:34px;
  height:34px;
}
.footer-brand{
  font-size:18px;
}
.footer-brand img{
  width:30px;
  height:30px;
}

/* Header navigation was too tiny at real desktop scale */
.main-nav a,
.header-cta{
  font-size:12px;
  letter-spacing:.065em;
}
.control-btn{
  min-height:36px;
  padding:0 12px;
  font-size:11px;
}
.theme-icon{
  font-size:14px;
}

/* Hero technical labels */
.hero-kicker{
  font-size:12px;
  line-height:1.5;
}
.hero-kicker-mark{
  font-size:11px;
}
.hero-rail{
  font-size:9px;
}

/* Right-side spec panel:
   labels and values both enlarged, with clearer hierarchy */
.spec-row{
  grid-template-columns:100px 1fr;
  gap:22px;
  padding:18px 0;
}
.spec-row span{
  font-size:11px;
  line-height:1.55;
}
.spec-row b{
  font-size:12px;
  line-height:1.55;
  color:var(--text);
}
.hero-spec{
  padding-left:20px;
  padding-right:20px;
}

/* Bottom-right editorial annotation panel */
.hero-accent-panel{
  width:326px;
  padding:20px 22px;
}
.hero-accent-panel .accent-code{
  font-size:11px;
}
.hero-accent-panel p{
  font-size:13px;
  line-height:1.75;
}
.hero-accent-panel .accent-line{
  margin:16px 0;
}

/* Increase small editorial labels globally */
.section-no{
  font-size:13px;
}
.section-kicker,
.product-breadcrumb{
  font-size:11px;
}
.hero-foot .text-link{
  font-size:12px;
}
.hero-foot>span{
  font-size:11px;
}
.filters .filter,
.notice-tabs .notice-tab{
  font-size:11px;
}
.search-line span,
.search-line input{
  font-size:11px;
}
.notice-meta .mono,
.notice-date,
.notice-toolbar>#noticeCount{
  font-size:11px;
}
.footer-inner>.mono{
  font-size:10px;
}

/* Product index metadata was also visually weak */
.product-number{
  font-size:12px;
}
.product-name span{
  font-size:11px;
  line-height:1.5;
}
.product-description{
  font-size:13px;
  line-height:1.78;
}
.product-state{
  font-size:11px;
  line-height:1.55;
}
.product-state span{
  font-size:10.5px;
}

/* Editorial text blocks */
.notice-copy p,
.section-head>p,
.principle-grid p,
.feature-row p,
.product-notice-row p,
.changelog-row ul,
.product-intro>p,
.download-strip p{
  font-size:13px;
}
.principle-grid span,
.feature-row .mono,
.download-strip .mono{
  font-size:10px;
}

/* Software detail metadata */
.product-side-index{
  font-size:9px;
}
.interface-top{
  font-size:10px;
}

/* Slightly more breathing room in top bar */
.header-inner{
  height:76px;
}

/* Chinese readability */
html[lang="zh-CN"] .main-nav a,
html[lang="zh-CN"] .control-btn,
html[lang="zh-CN"] .spec-row span,
html[lang="zh-CN"] .spec-row b{
  letter-spacing:.02em;
}

/* Keep responsive header from becoming crowded */
@media(max-width:980px){
  .brand{
    font-size:19px;
  }
}
@media(max-width:680px){
  .brand{
    font-size:18px;
  }
  .brand img{
    width:31px;
    height:31px;
  }
  .control-btn{
    min-height:34px;
    font-size:10px;
    padding:0 8px;
  }
  .hero-kicker{
    font-size:10px;
  }
  .hero-accent-panel p{
    font-size:12px;
  }
}


/* =========================================================
   Version Archive
   ========================================================= */
.version-warning{
  display:grid;
  grid-template-columns:180px 1fr;
  gap:28px;
  padding:18px 0;
  margin-bottom:4px;
  border-top:1px solid var(--line-strong);
  border-bottom:1px solid var(--line);
}
.version-warning>span{
  font-size:10px;
  color:var(--warn);
}
.version-warning p{
  margin:0;
  color:var(--muted);
  font-size:13px;
  line-height:1.75;
}

.version-archive{
  border-bottom:1px solid var(--line);
}
.version-row{
  position:relative;
  display:grid;
  grid-template-columns:58px 210px minmax(0,1fr) 135px;
  gap:26px;
  align-items:start;
  padding:26px 0;
  border-top:1px solid var(--line);
}
.version-row::before{
  content:"";
  position:absolute;
  left:0;
  top:0;
  width:0;
  height:100%;
  background:var(--line-strong);
}
.version-row.current::before{
  width:2px;
  background:linear-gradient(var(--accent),var(--accent2));
}
.version-row.current{
  padding-left:16px;
}
.version-order{
  font-size:11px;
  color:var(--muted2);
  padding-top:5px;
}
.version-main h3{
  margin:0;
  font-size:21px;
  letter-spacing:-.025em;
}
.version-title-line{
  display:flex;
  gap:10px;
  align-items:center;
  flex-wrap:wrap;
}
.version-badge{
  font-family:Consolas,monospace;
  font-size:9px;
  letter-spacing:.04em;
  padding:3px 6px;
  border:1px solid var(--line-strong);
  color:var(--muted);
}
.version-badge.current{
  color:var(--accent);
  border-color:color-mix(in srgb,var(--accent) 45%,var(--line));
}
.version-date{
  margin-top:7px;
  font-size:10px;
  color:var(--muted2);
}
.version-notes{
  color:var(--muted);
  font-size:12px;
}
.version-notes ul{
  margin:0;
  padding-left:18px;
  line-height:1.8;
}
.version-action{
  justify-self:end;
  padding-top:4px;
}
.version-download,
.version-unavailable{
  font-family:Consolas,monospace;
  font-size:10px;
  letter-spacing:.05em;
}
.version-download{
  color:var(--text);
  padding-bottom:4px;
  border-bottom:1px solid var(--line-strong);
}
.version-download:hover{
  color:var(--accent);
  border-color:var(--accent);
}
.version-unavailable{
  color:var(--muted2);
}

@media(max-width:980px){
  .version-row{
    grid-template-columns:48px 170px 1fr;
  }
  .version-action{
    grid-column:3;
    justify-self:start;
  }
}
@media(max-width:680px){
  .version-warning{
    grid-template-columns:1fr;
    gap:8px;
  }
  .version-row{
    grid-template-columns:38px 1fr;
    gap:14px;
  }
  .version-notes,
  .version-action{
    grid-column:2;
  }
  .version-main h3{
    font-size:19px;
  }
}


/* =========================================================
   Readability v6
   Technical Editorial, but readable on 1080p / 2K displays
   ========================================================= */

/* Rendering */
body{
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  text-rendering:optimizeLegibility;
}

/* Brand */
.brand{
  font-size:21px;
  font-weight:800;
}
.brand img{
  width:36px;
  height:36px;
}

/* Navigation & controls */
.main-nav a,
.header-cta{
  font-size:13px;
  font-weight:600;
  letter-spacing:.04em;
}
.control-btn{
  min-height:38px;
  padding:0 13px;
  font-size:12px;
  font-weight:600;
}
.theme-icon{
  font-size:15px;
}

/* Hero utility typography */
.hero-kicker{
  font-size:13px;
  font-weight:600;
  color:var(--muted);
}
.hero-kicker-mark{
  font-size:12px;
  font-weight:700;
}
.hero-rail{
  font-size:10px;
  font-weight:600;
}

/* Hero subtitle */
.hero-cn{
  font-size:22px;
  font-weight:500;
  line-height:1.8;
  color:var(--muted);
}

/* Right-side system specification */
.spec-row{
  grid-template-columns:105px 1fr;
  gap:24px;
  padding:20px 0;
}
.spec-row span{
  font-size:13px;
  font-weight:600;
  line-height:1.55;
  color:var(--muted);
}
.spec-row b{
  font-size:14px;
  font-weight:600;
  line-height:1.55;
  color:var(--text);
}
.hero-spec{
  padding:0 22px 12px;
}

/* Accent info card */
.hero-accent-panel{
  width:340px;
  padding:22px 24px;
}
.hero-accent-panel .accent-code{
  font-size:12px;
  font-weight:700;
}
.hero-accent-panel p{
  font-size:14px;
  font-weight:500;
  line-height:1.75;
  color:var(--muted);
}

/* Hero footer */
.hero-foot .text-link{
  font-size:13px;
  font-weight:700;
}
.hero-foot>span{
  font-size:12px;
  font-weight:600;
}

/* Section headings metadata */
.section-no{
  font-size:14px;
  font-weight:700;
}
.section-head>p{
  font-size:15px;
  font-weight:500;
  line-height:1.75;
}

/* Filters / search */
.filter,
.notice-tab{
  font-size:12px;
  font-weight:700;
}
.search-line span{
  font-size:12px;
  font-weight:700;
}
.search-line input{
  font-size:13px;
  font-weight:500;
}

/* Product list */
.product-number{
  font-size:13px;
  font-weight:700;
}
.product-name h3{
  font-size:29px;
  font-weight:700;
}
.product-name span{
  font-size:13px;
  font-weight:600;
  line-height:1.55;
}
.product-description{
  font-size:14px;
  font-weight:500;
  line-height:1.8;
}
.product-state{
  font-size:12px;
  font-weight:600;
}
.product-state b{
  font-size:13px;
  font-weight:700;
}
.product-state span{
  font-size:12px;
}

/* Notice */
.notice-scope,
.notice-type,
.notice-important,
.version-badge{
  font-size:10px;
  font-weight:700;
}
.notice-meta .mono,
.notice-date,
.notice-toolbar>#noticeCount{
  font-size:12px;
  font-weight:600;
}
.notice-copy h3{
  font-size:24px;
  font-weight:700;
}
.notice-copy p{
  font-size:14px;
  font-weight:500;
  line-height:1.8;
}

/* Principles */
.principle-grid span{
  font-size:11px;
  font-weight:700;
}
.principle-grid h3{
  font-size:22px;
  font-weight:700;
}
.principle-grid p{
  font-size:14px;
  font-weight:500;
  line-height:1.85;
}

/* Product detail page */
.product-breadcrumb{
  font-size:12px;
  font-weight:600;
}
.product-tagline{
  font-size:22px;
  font-weight:500;
}
.product-intro>p{
  font-size:15px;
  font-weight:500;
  line-height:1.9;
}
.feature-row .mono{
  font-size:11px;
  font-weight:700;
}
.feature-row h3{
  font-size:21px;
  font-weight:700;
}
.feature-row p{
  font-size:14px;
  font-weight:500;
  line-height:1.8;
}
.product-notice-row p{
  font-size:14px;
  font-weight:500;
  line-height:1.8;
}
.notice-details summary{
  font-size:12px;
  font-weight:700;
}
.notice-details ul{
  font-size:13px;
  line-height:1.85;
}

/* Changelog */
.changelog-row .version{
  font-size:25px;
  font-weight:700;
}
.changelog-row .date{
  font-size:12px;
  font-weight:600;
}
.changelog-row h3{
  font-size:20px;
  font-weight:700;
}
.changelog-row ul{
  font-size:14px;
  font-weight:500;
  line-height:1.85;
}

/* Version archive */
.version-warning>span{
  font-size:11px;
  font-weight:700;
}
.version-warning p{
  font-size:14px;
  font-weight:500;
}
.version-order{
  font-size:12px;
  font-weight:700;
}
.version-main h3{
  font-size:22px;
  font-weight:700;
}
.version-date{
  font-size:12px;
  font-weight:600;
}
.version-notes{
  font-size:14px;
  font-weight:500;
  line-height:1.8;
}
.version-download,
.version-unavailable{
  font-size:12px;
  font-weight:700;
}

/* Download area */
.download-strip .mono{
  font-size:11px;
  font-weight:700;
}
.download-strip p{
  font-size:14px;
  font-weight:500;
}

/* Footer */
.footer-inner>.mono{
  font-size:11px;
  font-weight:600;
}
.footer-brand{
  font-size:19px;
  font-weight:800;
}

/* Interface mock labels */
.interface-top{
  font-size:11px;
  font-weight:600;
}

/* Chinese should not inherit excessive mono letter spacing */
html[lang="zh-CN"] .mono,
html[lang="zh-CN"] .main-nav a,
html[lang="zh-CN"] .control-btn,
html[lang="zh-CN"] .spec-row span,
html[lang="zh-CN"] .spec-row b{
  letter-spacing:.015em;
}

/* More breathing room in the right-side table */
.hero-spec .spec-row:first-child{
  border-top:0;
}

/* Desktop 2K readability: don't let content feel too tiny inside a huge canvas */
@media(min-width:1500px){
  .shell{
    width:min(1320px,calc(100% - 72px));
  }
  .hero-grid{
    gap:88px;
  }
}

/* Mobile stays compact */
@media(max-width:680px){
  body{font-size:15px}
  .main-nav a,.header-cta{font-size:11px}
  .control-btn{font-size:11px}
  .spec-row span{font-size:12px}
  .spec-row b{font-size:13px}
  .hero-accent-panel p{font-size:13px}
  .section-head>p{font-size:14px}
}


/* Product principles v7 */
.principle-grid article{
  min-height:245px;
}
.principle-grid h3{
  margin-top:42px;
  font-size:24px;
}
.principle-grid p{
  max-width:340px;
  font-size:14px;
  line-height:1.9;
}
.hero-accent-panel p{
  max-width:280px;
}


/* =========================================================
   License Store Navigation
   ========================================================= */
#licenseStoreLink{
  position:relative;
  color:var(--text);
}
#licenseStoreLink::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-8px;
  height:1px;
  background:linear-gradient(90deg,var(--accent),var(--accent2));
  transform:scaleX(.35);
  transform-origin:left;
  opacity:.75;
  transition:.18s ease;
}
#licenseStoreLink:hover{
  color:var(--accent);
}
#licenseStoreLink:hover::after{
  transform:scaleX(1);
}
#licenseStoreLink.store-link-disabled{
  color:var(--muted2);
}
#licenseStoreLink.store-link-disabled::after{
  background:var(--line-strong);
  opacity:.5;
}


/* =========================================================
   Primary download button — v9
   ========================================================= */
.editorial-button{
  min-height:56px;
  min-width:168px;
  padding:0 24px;
  font-size:14px;
  font-weight:750;
  line-height:1;
  letter-spacing:.035em;
  justify-content:center;
  white-space:nowrap;
}

/* Product hero primary action should read as the main CTA */
.product-actions .editorial-button{
  min-width:178px;
  min-height:58px;
  font-size:15px;
  font-weight:800;
}

/* Bottom download CTA */
.download-strip .editorial-button{
  min-width:190px;
  min-height:58px;
  font-size:15px;
  font-weight:800;
}

/* Secondary changelog link remains secondary, but readable */
.product-actions .text-link{
  font-size:13px;
  font-weight:700;
  line-height:1.5;
}

/* Chinese CTA should not look overly spaced out */
html[lang="zh-CN"] .editorial-button{
  letter-spacing:.01em;
  font-family:"Microsoft YaHei UI","Microsoft YaHei","PingFang SC","Segoe UI",sans-serif;
}

/* Better hover emphasis without changing the editorial style */
.editorial-button:hover{
  transform:translateY(-1px);
}

/* Mobile */
@media(max-width:680px){
  .editorial-button,
  .product-actions .editorial-button,
  .download-strip .editorial-button{
    min-height:52px;
    min-width:150px;
    font-size:14px;
    padding:0 18px;
  }
}