/* ==========================================================================
   易歪歪 · 官方网站
   设计语言：参考 eyy250.com 的电商软件官网风格
   浅灰底 + 白色圆角卡片 + 钢蓝主色 + 深灰首屏
   ========================================================================== */

:root{
  --paper:#f7f7f7;
  --paper-2:#eef1f6;
  --ink:#222831;
  --ink-2:#414a55;
  --muted:#7d8794;
  --blue:#366bb3;
  --blue-deep:#0047a6;
  --blue-wash:#e9f0fa;
  --steel:#587ab9;
  --navy:#2b333a;
  --navy-2:#232a31;
  --green:#28a745;
  --green-deep:#1e7e34;
  --cyan:#12c0ff;
  --red:#df0000;
  --red-soft:#ff5558;
  --deep:#2b333a;
  --deep-2:#232a31;
  --line:#dfe5ee;
  --line-strong:#c3ccda;
  --white:#ffffff;
  --radius:6px;
  --radius-lg:15px;
  --max:1140px;
}

*,*::before,*::after{box-sizing:border-box}

html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
html:focus-within{scroll-behavior:smooth}

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  font-size:16px;
  line-height:1.7;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}

img,svg,figure{display:block}
img,svg{max-width:100%}
img{height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol,li{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,blockquote{margin:0}
table{border-collapse:collapse;width:100%}

::selection{background:var(--blue);color:#fff}

:focus-visible{outline:2px solid var(--blue);outline-offset:3px}

.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 32px}
.container-narrow{max-width:1000px}

/* ---------- 排版基元 ---------- */

.display{
  font-size:clamp(44px,6.4vw,88px);
  line-height:.98;
  font-weight:800;
  letter-spacing:-.035em;
}
.h1{font-size:clamp(36px,4.6vw,62px);line-height:1.02;font-weight:800;letter-spacing:-.032em}
.h2{font-size:clamp(28px,3.4vw,44px);line-height:1.06;font-weight:800;letter-spacing:-.028em}
.h3{font-size:clamp(20px,2vw,26px);line-height:1.25;font-weight:700;letter-spacing:-.015em}
.h4{font-size:17px;line-height:1.35;font-weight:700}
.lead{font-size:clamp(17px,1.5vw,21px);line-height:1.65;color:var(--ink-2)}
.muted{color:var(--muted)}
.small{font-size:13.5px;line-height:1.6}
.mono{
  font-family:ui-monospace,"SF Mono","Cascadia Mono",Consolas,"Liberation Mono",monospace;
  font-size:12px;letter-spacing:.02em;
}
.caps{
  font-size:11.5px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;
}
.blue{color:var(--blue)}
.accent-rule{width:56px;height:3px;background:var(--blue);margin:0 0 20px}

.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;
}

/* ---------- 按钮 ---------- */

.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:13px 22px;border-radius:var(--radius);
  font-size:14.5px;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
  white-space:nowrap;
}
.btn svg{width:16px;height:16px;flex:none}
.btn-solid{background:var(--blue);color:#fff}
.btn-solid:hover{background:var(--blue-deep);color:#fff;transform:translateY(-1px)}
.btn-ink{background:var(--ink);color:#fff}
.btn-ink:hover{background:#000;color:#fff;transform:translateY(-1px)}
.btn-line{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-line:hover{background:var(--ink);color:#fff}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line-strong)}
.btn-ghost:hover{border-color:var(--ink);color:var(--ink)}
.btn-sm{padding:9px 16px;font-size:13px}
.btn-block{display:flex;width:100%;justify-content:space-between}

.textlink{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:700;color:var(--ink);
  border-bottom:1px solid var(--ink);padding-bottom:2px;
  transition:color .18s,border-color .18s;
}
.textlink:hover{color:var(--blue);border-color:var(--blue)}
.textlink svg{width:14px;height:14px}

/* ---------- 顶栏 ---------- */

.topline{
  border-top:3px solid var(--blue);
  border-bottom:1px solid var(--line);
  background:var(--paper);
}
.topline-inner{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  height:38px;
}
.topline .meta{display:flex;align-items:center;gap:18px;color:var(--muted)}
.topline .dot{width:5px;height:5px;background:var(--blue);display:inline-block;margin-right:7px;vertical-align:1px}
.topline a{color:var(--ink-2)}
.topline a:hover{color:var(--blue)}

.masthead{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(150%) blur(10px);
  border-bottom:1px solid var(--line);
}
.masthead-inner{
  display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:32px;
  height:78px;
}
.brand{display:flex;align-items:center;gap:11px;flex:none}
.brand-mark{
  width:34px;height:34px;background:var(--ink);
  display:grid;place-items:center;
  border-radius:var(--radius);flex:none;
}
.brand-mark svg{width:22px;height:22px}
.brand-text{display:flex;flex-direction:column;line-height:1.05}
.brand-text b{font-size:19px;font-weight:800;letter-spacing:-.03em}
.brand-text span{font-size:9.5px;letter-spacing:.2em;color:var(--muted);text-transform:uppercase;margin-top:4px}

.nav{display:flex;align-items:center;gap:30px;justify-self:center}
.nav a{
  position:relative;padding:6px 0;
  font-size:14.5px;font-weight:600;color:var(--ink-2);
  transition:color .18s;
}
.nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--blue);transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.nav a:hover{color:var(--ink)}
.nav a:hover::after,.nav a.active::after{transform:scaleX(1)}
.nav a.active{color:var(--ink);font-weight:700}

.masthead-actions{display:flex;align-items:center;gap:12px;justify-self:end}
.menu-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line-strong);
  border-radius:var(--radius);place-items:center;
}
.menu-toggle span{display:block;width:16px;height:1.5px;background:var(--ink);margin:3px auto}

.mobile-nav{
  display:none;border-top:1px solid var(--line);background:var(--paper);
  padding:10px 0 18px;
}
.mobile-nav.open{display:block}
.mobile-nav a{
  display:flex;justify-content:space-between;align-items:center;
  padding:14px 32px;border-bottom:1px solid var(--line);
  font-size:15px;font-weight:600;
}
.mobile-nav a span{color:var(--muted);font-size:12px}

/* ---------- Hero ---------- */

.hero{border-bottom:1px solid var(--line);overflow:hidden}
.hero-grid{
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:56px;align-items:end;
  padding:74px 0 64px;
}
.hero-copy{padding-bottom:8px}
.hero-copy h1{margin-bottom:10px}
.hero-copy .display span{display:block}
.hero-sub{
  margin:24px 0 30px;max-width:520px;
  font-size:17.5px;line-height:1.7;color:var(--ink-2);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-note{
  display:flex;flex-wrap:wrap;gap:10px 22px;
  margin-top:24px;color:var(--muted);font-size:12.5px;
}
.hero-note span{display:inline-flex;align-items:center;gap:6px}
.hero-note svg{width:14px;height:14px;color:var(--blue)}

.hero-figure{position:relative}
.blueprint{
  position:relative;padding:14px;
  border:1px solid var(--line-strong);
  background:
    linear-gradient(to right,rgba(18,19,22,.05) 1px,transparent 1px) 0 0/32px 32px,
    linear-gradient(to bottom,rgba(18,19,22,.05) 1px,transparent 1px) 0 0/32px 32px,
    var(--paper-2);
}
.blueprint::before,.blueprint::after{
  content:"";position:absolute;width:10px;height:10px;
  border-top:2px solid var(--blue);border-left:2px solid var(--blue);
}
.blueprint::before{top:-1px;left:-1px}
.blueprint::after{bottom:-1px;right:-1px;transform:rotate(180deg)}
.blueprint img{width:100%;height:auto;border-radius:0}
.figure-caption{
  display:flex;justify-content:space-between;gap:12px;
  margin-top:12px;padding-top:10px;border-top:1px solid var(--line);
  font-size:11.5px;letter-spacing:.06em;color:var(--muted);
}
.figure-caption b{color:var(--ink);font-weight:700}

/* 竖排侧标 */
.rail-label{
  position:absolute;left:-46px;bottom:0;
  writing-mode:vertical-rl;transform:rotate(180deg);
  font-size:10.5px;letter-spacing:.24em;text-transform:uppercase;color:var(--muted);
}
@media (max-width:1180px){.rail-label{display:none}}

/* ---------- 事实条 ---------- */

.facts{border-bottom:1px solid var(--line);background:var(--white)}
.facts-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.fact{padding:30px 28px;border-left:1px solid var(--line)}
.fact:first-child{border-left:0;padding-left:0}
.fact-num{font-size:34px;font-weight:800;letter-spacing:-.03em;line-height:1;display:flex;align-items:baseline;gap:3px;color:var(--blue)}
.fact-num small{font-size:15px;font-weight:700;letter-spacing:0;color:var(--ink-2)}
.fact p{margin-top:8px;font-size:13px;color:var(--muted);line-height:1.5}

/* ---------- 章节骨架 ---------- */

.section{padding:86px 0}
.section.tight{padding:58px 0}
.section.paper-2{background:var(--paper-2)}
.section.paper-white{background:var(--white)}

.section-head{
  display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);
  gap:48px;align-items:end;
  padding-bottom:26px;margin-bottom:0;
  border-bottom:1px solid var(--ink);
}
.section-head .label{
  font-size:11.5px;font-weight:700;letter-spacing:.18em;text-transform:uppercase;color:var(--blue);
  display:block;margin-bottom:16px;
}
.section-head h2{margin:0}
.section-head .desc{color:var(--muted);font-size:15.5px;line-height:1.75;padding-bottom:6px}
.section-head.single{grid-template-columns:1fr;gap:14px}
.section-head.compact{border-bottom:1px solid var(--line)}

/* ---------- 编号索引行 ---------- */

.index-rows{border-top:1px solid var(--line);margin-top:0}
.index-row{
  display:grid;grid-template-columns:78px minmax(0,1fr) 250px 44px;
  gap:28px;align-items:start;
  padding:30px 0;border-bottom:1px solid var(--line);
  transition:background .2s ease,padding-left .2s ease;
}
.index-row:hover{background:var(--paper-2);padding-left:14px}
.index-row .num{font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--blue);padding-top:5px}
.index-row h3{font-size:21px;font-weight:700;letter-spacing:-.015em;margin-bottom:7px}
.index-row p{font-size:14.5px;line-height:1.7;color:var(--muted);max-width:560px}
.index-row .tagline{font-size:12.5px;color:var(--ink-2);line-height:1.7;padding-top:4px}
.index-row .tagline b{display:block;color:var(--ink);font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;margin-bottom:5px}
.index-row .go{
  width:38px;height:38px;border:1px solid var(--line-strong);border-radius:var(--radius);
  display:grid;place-items:center;transition:.2s ease;
}
.index-row:hover .go{background:var(--blue);border-color:var(--blue);color:#fff}
.index-row .go svg{width:15px;height:15px}

/* ---------- 规格表 ---------- */

.spec-grid{
  display:grid;grid-template-columns:1fr 1fr;
  border-top:1px solid var(--ink);border-left:1px solid var(--line);
}
.spec{
  padding:26px 26px 24px;
  border-right:1px solid var(--line);border-bottom:1px solid var(--line);
  background:var(--white);
  transition:background .2s;
}
.spec:hover{background:var(--paper-2)}
.spec-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.spec-no{font-size:11px;font-weight:700;letter-spacing:.14em;color:var(--muted)}
.spec-icon{
  width:34px;height:34px;border:1px solid var(--line);border-radius:var(--radius);
  display:grid;place-items:center;color:var(--blue);
}
.spec-icon svg{width:17px;height:17px}
.spec h3{font-size:17.5px;font-weight:700;margin-bottom:8px}
.spec p{font-size:14px;line-height:1.7;color:var(--muted)}
.spec ul{margin-top:12px;display:grid;gap:6px}
.spec li{font-size:12.5px;color:var(--ink-2);display:flex;gap:8px;align-items:flex-start}
.spec li::before{content:"—";color:var(--blue);font-weight:700}

/* ---------- 展示区 ---------- */

.showcase-grid{
  display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:54px;align-items:start;
}
.showcase-figure{margin:0}
.showcase-figure .frame{
  border:1px solid var(--line-strong);background:var(--white);padding:10px;
}
.showcase-figure .frame img{width:100%}
.showcase-caption{
  margin-top:12px;padding-top:10px;border-top:1px solid var(--ink);
  display:flex;justify-content:space-between;gap:14px;
  font-size:11.5px;color:var(--muted);letter-spacing:.05em;
}
.notes{display:grid;gap:0;border-top:1px solid var(--ink)}
.note{padding:20px 0;border-bottom:1px solid var(--line);display:grid;grid-template-columns:34px 1fr;gap:14px}
.note .n{font-size:11.5px;font-weight:700;color:var(--blue);letter-spacing:.1em;padding-top:2px}
.note h4{font-size:15px;margin-bottom:5px}
.note p{font-size:13.5px;color:var(--muted);line-height:1.65}

/* ---------- 版本对比 ---------- */

.editions{border-top:1px solid var(--ink)}
.edition{
  display:grid;grid-template-columns:190px minmax(0,1fr) 132px 168px;
  gap:30px;align-items:center;
  padding:32px 0;border-bottom:1px solid var(--line);
}
.edition .e-name{font-size:22px;font-weight:800;letter-spacing:-.02em}
.edition .e-name span{display:block;font-size:11px;font-weight:700;letter-spacing:.16em;color:var(--blue);margin-top:6px;text-transform:uppercase}
.edition .e-desc{font-size:14px;color:var(--muted);line-height:1.7}
.edition .e-meta{font-size:11.5px;color:var(--ink-2);line-height:1.9}
.edition .e-meta b{display:block;font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);font-weight:700}
.edition .e-cta{justify-self:end}

/* ---------- 三步流程 ---------- */

.steps{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--ink)}
.step{padding:32px 30px 34px;border-right:1px solid var(--line);position:relative}
.step:last-child{border-right:0}
.step .big{
  font-size:clamp(46px,5vw,72px);font-weight:800;letter-spacing:-.05em;line-height:1;
  color:transparent;-webkit-text-stroke:1.4px var(--line-strong);
  margin-bottom:22px;
}
.step:hover .big{-webkit-text-stroke:1.4px var(--blue)}
.step h3{font-size:18px;margin-bottom:9px}
.step p{font-size:13.5px;line-height:1.7;color:var(--muted)}

/* ---------- FAQ 折叠 ---------- */

.acc{border-top:1px solid var(--ink)}
.acc-item{border-bottom:1px solid var(--line)}
.acc-head{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 0;text-align:left;
}
.acc-head h3{font-size:16px;font-weight:700;line-height:1.5;transition:color .18s}
.acc-head:hover h3{color:var(--blue)}
.acc-sign{position:relative;width:16px;height:16px;flex:none}
.acc-sign::before,.acc-sign::after{
  content:"";position:absolute;background:var(--ink);transition:transform .22s ease,background .18s;
}
.acc-sign::before{left:0;top:7.5px;width:16px;height:1.5px}
.acc-sign::after{left:7.5px;top:0;width:1.5px;height:16px}
.acc-item.open .acc-sign::after{transform:scaleY(0)}
.acc-item.open .acc-sign::before{background:var(--blue)}
.acc-body{max-height:0;overflow:hidden;transition:max-height .3s ease}
.acc-body-inner{padding:0 44px 22px 0;font-size:14px;line-height:1.8;color:var(--muted)}
.acc-body-inner b{color:var(--ink-2)}
.acc-item.open .acc-body{max-height:520px}

/* ---------- 博客列表（编辑式） ---------- */

.log-list{border-top:1px solid var(--ink)}
.log-row{
  display:grid;grid-template-columns:132px minmax(0,1fr) 168px 30px;
  gap:28px;align-items:center;
  padding:22px 0;border-bottom:1px solid var(--line);
  transition:padding-left .2s,background .2s;
}
.log-row:hover{background:var(--paper-2);padding-left:12px}
.log-thumb{
  width:132px;border:1px solid var(--line-strong);background:var(--white);padding:4px;
}
.log-thumb img{width:100%;height:auto}
.log-meta{font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);margin-bottom:6px}
.log-row h3{font-size:17.5px;line-height:1.35;letter-spacing:-.01em;margin-bottom:5px}
.log-row p{font-size:13.5px;color:var(--muted);line-height:1.65;max-width:640px}
.log-date{font-size:11.5px;color:var(--ink-2);text-align:right;line-height:1.7}
.log-date span{display:block;color:var(--muted);font-size:10.5px;letter-spacing:.1em;text-transform:uppercase}
.log-arrow{color:var(--line-strong)}
.log-row:hover .log-arrow{color:var(--blue)}

/* ---------- 深色 CTA ---------- */

.cta{
  background:var(--deep);color:#fff;
  padding:74px 0;position:relative;overflow:hidden;
}
.cta-grid{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);gap:48px;align-items:center}
.cta .caps{color:rgba(255,255,255,.5);letter-spacing:.2em;display:block;margin-bottom:20px}
.cta h2{font-size:clamp(30px,3.8vw,50px);line-height:1.04;letter-spacing:-.03em;font-weight:800;color:#fff}
.cta p{margin-top:18px;color:rgba(255,255,255,.6);font-size:15.5px;line-height:1.75;max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta .btn-solid{background:var(--lime);color:var(--ink)}
.cta .btn-solid:hover{background:#fff;color:var(--ink)}
.cta .btn-ghost{border-color:rgba(255,255,255,.35);color:#fff}
.cta .btn-ghost:hover{border-color:#fff;color:#fff;background:rgba(255,255,255,.06)}
.cta-num{
  position:absolute;right:-30px;bottom:-70px;
  font-size:220px;font-weight:800;letter-spacing:-.06em;line-height:1;
  color:transparent;-webkit-text-stroke:1px rgba(255,255,255,.10);
  pointer-events:none;
}

/* ---------- 页脚 ---------- */

.footer{background:var(--deep-2);color:rgba(255,255,255,.62);padding:62px 0 0}
.footer-top{display:grid;grid-template-columns:1.4fr .7fr .7fr .9fr;gap:44px;padding-bottom:48px}
.footer .brand-mark{background:var(--blue)}
.footer .brand-text b{color:#fff}
.footer .brand-text span{color:rgba(255,255,255,.4)}
.footer-about{margin-top:20px;font-size:13px;line-height:1.8;max-width:320px;color:rgba(255,255,255,.5)}
.footer-col h4{
  font-size:11px;letter-spacing:.18em;text-transform:uppercase;
  color:#fff;font-weight:700;margin-bottom:16px;
}
.footer-col ul{display:grid;gap:9px}
.footer-col a{font-size:13px;color:rgba(255,255,255,.55);transition:color .18s}
.footer-col a:hover{color:#fff}
.footer-col .mono{color:rgba(255,255,255,.4);font-size:11.5px;line-height:1.8}
.footer-disclaimer{
  border-top:1px solid rgba(255,255,255,.12);
  padding:24px 0;font-size:11.5px;line-height:1.85;color:rgba(255,255,255,.42);
}
.footer-disclaimer b{color:rgba(255,255,255,.7);font-weight:700}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px 24px;
  padding:20px 0 26px;font-size:11.5px;color:rgba(255,255,255,.38);
}
.footer-bottom a:hover{color:#fff}

/* ---------- 内页头 ---------- */

.page-head{border-bottom:1px solid var(--ink);background:var(--paper)}
.page-head-grid{
  display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:48px;align-items:end;
  padding:52px 0 44px;
}
.page-head h1{margin:14px 0 16px}
.page-head .lead{max-width:620px}
.page-head-side{
  border-left:1px solid var(--line);padding-left:28px;
  display:grid;gap:14px;padding-bottom:4px;
}
.page-head-side dl{margin:0;display:grid;grid-template-columns:auto 1fr;gap:6px 16px;font-size:12.5px}
.page-head-side dt{color:var(--muted);letter-spacing:.04em}
.page-head-side dd{margin:0;color:var(--ink);font-weight:600}

.crumb{
  display:flex;align-items:center;gap:9px;
  font-size:11.5px;color:var(--muted);letter-spacing:.05em;
  padding:14px 0 0;
}
.crumb a:hover{color:var(--blue)}
.crumb i{color:var(--line-strong);font-style:normal}

/* ---------- 下载页 ---------- */

.edition-tabs{
  display:flex;gap:0;border-bottom:1px solid var(--line);margin-bottom:36px;
  overflow-x:auto;
}
.edition-tabs button{
  position:relative;padding:14px 24px 16px;white-space:nowrap;
  font-size:14px;font-weight:700;color:var(--muted);
  border-bottom:2px solid transparent;margin-bottom:-1px;
  transition:color .18s,border-color .18s;
}
.edition-tabs button:hover{color:var(--ink)}
.edition-tabs button[aria-selected="true"]{color:var(--ink);border-color:var(--blue)}
.edition-tabs button small{
  display:block;font-size:10.5px;font-weight:600;letter-spacing:.1em;color:var(--muted);margin-top:3px;text-transform:uppercase;
}

.dl-panel{display:none}
.dl-panel.active{display:block}

.dl-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:44px}
.dl-card{
  background:var(--white);border:1px solid var(--ink);border-radius:var(--radius);
  padding:32px;
}
.dl-card-top{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;padding-bottom:20px;border-bottom:1px solid var(--line)}
.dl-card h2{font-size:26px;letter-spacing:-.02em}
.dl-card .ver{font-size:11.5px;letter-spacing:.1em;color:var(--blue);font-weight:700;text-transform:uppercase;margin-bottom:6px}
.dl-badge{font-size:10.5px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;padding:5px 9px;border:1px solid var(--line-strong);color:var(--ink-2)}
.dl-badge.hot{background:var(--blue);color:#fff;border-color:var(--blue)}
.dl-actions{display:grid;gap:10px;margin:22px 0 8px}
.dl-note{font-size:12px;color:var(--muted);line-height:1.7}
.hash{
  margin-top:18px;border:1px dashed var(--line-strong);padding:12px 14px;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  background:var(--paper-2);
}
.hash code{font-family:ui-monospace,Consolas,monospace;font-size:11.5px;color:var(--ink-2);word-break:break-all}
.copy-btn{font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--blue);flex:none}
.copy-btn:hover{text-decoration:underline}

.req-table{border-top:1px solid var(--ink);font-size:13px}
.req-table caption{
  text-align:left;padding-bottom:12px;font-size:11px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--blue);font-weight:700;
}
.req-table th,.req-table td{padding:11px 0;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;line-height:1.6}
.req-table th{width:34%;color:var(--muted);font-weight:600}
.req-table td{color:var(--ink-2)}
.req-table td b{color:var(--ink)}

.mirror{border:1px solid var(--line);background:var(--paper-2);padding:20px 22px;margin-top:22px}
.mirror h4{font-size:13px;margin-bottom:8px}
.mirror p{font-size:12px;color:var(--muted);line-height:1.7}
.mirror ul{margin-top:10px;display:grid;gap:6px}
.mirror li{font-size:12px;color:var(--ink-2)}
.mirror li a{border-bottom:1px solid var(--line-strong)}
.mirror li a:hover{color:var(--blue);border-color:var(--blue)}

/* ---------- FAQ 页 ---------- */

.faq-wrap{display:grid;grid-template-columns:230px minmax(0,1fr);gap:56px;align-items:start}
.faq-index{position:sticky;top:104px;border-top:1px solid var(--ink);padding-top:16px}
.faq-index .caps{color:var(--muted);display:block;margin-bottom:14px}
.faq-index a{
  display:flex;justify-content:space-between;gap:10px;
  padding:10px 0;border-bottom:1px solid var(--line);
  font-size:13.5px;font-weight:600;color:var(--ink-2);
  transition:color .18s,padding-left .18s;
}
.faq-index a:hover{color:var(--blue);padding-left:5px}
.faq-index a span{color:var(--muted);font-size:11px}
.faq-index .search-mini{margin-top:20px;border:1px solid var(--line-strong);padding:9px 12px;width:100%;font-size:12.5px;background:var(--white);border-radius:2px}
.faq-index .search-mini:focus{outline:2px solid var(--blue);outline-offset:0}

.faq-group{margin-bottom:44px;scroll-margin-top:110px}
.faq-group-head{display:flex;align-items:baseline;gap:14px;margin-bottom:4px}
.faq-group-head .no{font-size:11px;font-weight:700;letter-spacing:.14em;color:var(--blue)}
.faq-group-head h2{font-size:24px;letter-spacing:-.02em}
.faq-group > p{font-size:13.5px;color:var(--muted);margin:8px 0 14px;max-width:680px}

.faq-empty{display:none;padding:26px 0;color:var(--muted);font-size:14px}
.faq-empty.show{display:block}

/* ---------- 博客页 ---------- */

.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--ink);border-left:1px solid var(--line)}
.post-card{
  border-right:1px solid var(--line);border-bottom:1px solid var(--line);
  background:var(--white);display:flex;flex-direction:column;
  transition:background .2s;
}
.post-card:hover{background:var(--paper-2)}
.post-cover{display:block;border-bottom:1px solid var(--line)}
.post-cover img{width:100%;height:auto}
.post-body{padding:24px 24px 26px;display:flex;flex-direction:column;flex:1}
.post-meta{display:flex;align-items:center;gap:10px;font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin-bottom:12px}
.post-meta i{width:4px;height:4px;background:var(--blue);display:inline-block}
.post-body h3{font-size:19px;line-height:1.35;letter-spacing:-.015em;margin-bottom:10px}
.post-body p{font-size:13.5px;line-height:1.7;color:var(--muted);margin-bottom:18px}
.post-body .textlink{margin-top:auto;font-size:12.5px}

.filters{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 28px}
.filters button{
  border:1px solid var(--line-strong);border-radius:var(--radius);
  padding:7px 14px;font-size:12px;font-weight:700;letter-spacing:.04em;color:var(--ink-2);
  transition:.18s;
}
.filters button[aria-pressed="true"]{background:var(--ink);border-color:var(--ink);color:#fff}
.filters button:hover{border-color:var(--ink)}

/* ---------- 关于页 ---------- */

.about-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px;align-items:start}
.about-art{border:1px solid var(--line-strong);background:var(--white);padding:12px}
.about-art img{width:100%}
.timeline{border-top:1px solid var(--ink)}
.tl-item{display:grid;grid-template-columns:110px minmax(0,1fr);gap:26px;padding:24px 0;border-bottom:1px solid var(--line)}
.tl-year{font-size:22px;font-weight:800;letter-spacing:-.02em;color:var(--blue)}
.tl-item h3{font-size:16px;margin-bottom:6px}
.tl-item p{font-size:13.5px;color:var(--muted);line-height:1.7}
.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--ink)}
.value{padding:28px 26px;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.value:first-child{padding-left:0}
.value:last-child{border-right:0}
.value .no{font-size:11px;font-weight:700;color:var(--blue);letter-spacing:.14em;margin-bottom:14px;display:block}
.value h3{font-size:17px;margin-bottom:8px}
.value p{font-size:13.5px;color:var(--muted);line-height:1.7}

/* ---------- 数据/引用 ---------- */

.quote{
  border-left:3px solid var(--blue);padding:6px 0 6px 24px;margin:0;
  font-size:clamp(18px,2vw,24px);line-height:1.5;font-weight:600;letter-spacing:-.01em;
}
.quote footer{margin-top:14px;font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);font-weight:700}

.data-strip{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--ink);border-bottom:1px solid var(--ink);background:var(--white)}
.data-cell{padding:26px 26px 24px;border-right:1px solid var(--line)}
.data-cell:last-child{border-right:0}
.data-cell .k{font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin-bottom:10px}
.data-cell .v{font-size:30px;font-weight:800;letter-spacing:-.03em;line-height:1}
.data-cell .v small{font-size:13px;font-weight:700;letter-spacing:0;color:var(--muted)}

/* ---------- 显现动画 ---------- */

.reveal{transition:opacity .6s ease,transform .6s ease}
.js-reveal .reveal{opacity:0;transform:translateY(18px)}
.js-reveal .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){.reveal{transition:none}.js-reveal .reveal{opacity:1;transform:none}}

/* ---------- 返回顶部 ---------- */

.to-top{
  position:fixed;right:22px;bottom:22px;z-index:50;
  width:42px;height:42px;background:var(--ink);color:#fff;
  border-radius:var(--radius);display:grid;place-items:center;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .22s,visibility .22s,transform .22s,background .18s;
}
.to-top.show{opacity:1;visibility:visible;transform:none}
.to-top:hover{background:var(--blue)}
.to-top svg{width:16px;height:16px}

/* ---------- 响应式 ---------- */

@media (max-width:1080px){
  .hero-grid{grid-template-columns:1fr;gap:40px;padding:56px 0 46px;align-items:start}
  .hero-copy .display{font-size:clamp(40px,7.2vw,72px)}
  .section-head{grid-template-columns:1fr;gap:18px}
  .showcase-grid{grid-template-columns:1fr;gap:34px}
  .edition{grid-template-columns:160px minmax(0,1fr) 150px;gap:22px}
  .edition .e-meta{display:none}
  .page-head-grid{grid-template-columns:1fr;gap:28px;padding:40px 0 34px}
  .page-head-side{border-left:0;border-top:1px solid var(--line);padding-left:0;padding-top:18px}
  .dl-grid{grid-template-columns:1fr;gap:30px}
  .faq-wrap{grid-template-columns:1fr;gap:34px}
  .faq-index{position:static;border-top:1px solid var(--line);padding:16px 0 0}
  .faq-index a{display:none}
  .faq-index .search-mini{margin-top:8px}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .about-grid{grid-template-columns:1fr;gap:36px}
  .footer-top{grid-template-columns:1fr 1fr;gap:36px}
}

@media (max-width:900px){
  .nav{display:none}
  .masthead-actions .btn-ghost{display:none}
  .menu-toggle{display:grid}
  .masthead-inner{height:66px}
  .facts-grid{grid-template-columns:1fr 1fr}
  .fact{border-left:0;border-top:1px solid var(--line);padding:22px 0}
  .fact:nth-child(2n){padding-left:22px;border-left:1px solid var(--line)}
  .index-row{grid-template-columns:56px minmax(0,1fr) 38px;gap:18px}
  .index-row .tagline{display:none}
  .spec-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .step{border-right:0;border-bottom:1px solid var(--line);padding:24px 0}
  .step .big{font-size:44px;margin-bottom:14px}
  .edition{grid-template-columns:1fr;gap:14px;padding:24px 0}
  .edition .e-cta{justify-self:start}
  .log-row{grid-template-columns:96px minmax(0,1fr) 30px;gap:18px}
  .log-thumb{width:96px}
  .log-date{display:none}
  .cta-grid{grid-template-columns:1fr;gap:28px}
  .value-grid{grid-template-columns:1fr}
  .value{border-right:0;padding-left:0}
  .data-strip{grid-template-columns:1fr}
  .data-cell{border-right:0;border-bottom:1px solid var(--line)}
  .tl-item{grid-template-columns:84px minmax(0,1fr);gap:18px}
}

@media (max-width:620px){
  .container{padding:0 20px}
  .topline .meta span:nth-child(2){display:none}
  .section{padding:52px 0}
  .section.tight{padding:40px 0}
  .hero-grid{padding:38px 0 34px;gap:30px}
  .hero-sub{font-size:16px}
  .hero-actions .btn{width:100%;justify-content:center}
  .post-grid{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr;gap:30px}
  .display{font-size:clamp(34px,9vw,48px)}
  .h1{font-size:clamp(28px,7.6vw,40px)}
  .h2{font-size:clamp(24px,6.4vw,32px)}
  .cta{padding:52px 0}
  .cta-num{display:none}
  .dl-card{padding:22px}
  .index-row{grid-template-columns:44px minmax(0,1fr);gap:14px}
  .index-row .go{display:none}
  .log-row{grid-template-columns:78px minmax(0,1fr);gap:14px}
  .log-thumb{width:78px}
  .log-arrow{display:none}
}

/* ==========================================================================
   视觉主题 v2：参考 eyy250.com 的白灰底 + 钢蓝 + 深灰首屏 + 圆角卡片
   ========================================================================== */

body{background:var(--paper);color:var(--ink);font-size:15.5px}

/* 顶部信息条 */
.topline{border-top:0;background:#fff;border-bottom:1px solid var(--line)}
.topline-inner{height:34px}
.topline .dot{background:var(--green)}

/* 导航：白底 + 5px 钢蓝下边线 */
.masthead{
  background:#fff;backdrop-filter:none;
  border-bottom:5px solid var(--steel);
  box-shadow:0 1px 3px rgba(17,24,39,.06);
}
.masthead-inner{height:64px;gap:24px}
.brand-mark{background:var(--steel)}
.brand-text b{color:#4d6faf;font-size:18px}
.brand-text span{color:#97a3b4}
.nav a{font-weight:500;font-size:14.5px;color:#3c4552}
.nav a.active{color:var(--blue)}
.nav a::after{background:var(--blue)}
.masthead-actions .btn-ghost{border-color:var(--line-strong);border-radius:4px;color:#4a5561}
.masthead-actions .btn-ghost:hover{border-color:var(--blue);color:var(--blue);background:#fff}
.masthead-actions .btn-solid{background:var(--green);border-color:var(--green);border-radius:4px}
.masthead-actions .btn-solid:hover{background:var(--green-deep);border-color:var(--green-deep);color:#fff}
.menu-toggle{border-color:var(--line-strong);border-radius:4px}
.mobile-nav{background:#fff}

/* 首屏 */
.hero{background:var(--navy);border-bottom:0;color:#fff}
.hero-grid{padding:52px 0 46px;gap:46px;align-items:center;grid-template-columns:minmax(0,1.16fr) minmax(0,.84fr)}
.hero-copy{padding-bottom:0}
.hero-copy .display{font-size:clamp(29px,3.4vw,42px);line-height:1.28;font-weight:700;letter-spacing:-.02em;color:#fff}
.hero-copy .display .cyan{color:var(--cyan)}
.hero-copy .display .free-badge{
  display:inline-block;vertical-align:middle;margin-left:10px;
  padding:4px 9px;background:var(--red);border-radius:3px;
  font-size:12px;font-weight:700;letter-spacing:.02em;color:#fff;line-height:1.4;
}
.hero-sub{margin:16px 0 0;max-width:none;font-size:16.5px;line-height:1.8;color:rgba(255,255,255,.92)}
.hero-stat{margin:22px 0 0;font-size:15.5px;color:#fff}
.hero-stat strong{font-size:46px;line-height:1;color:var(--red-soft);font-weight:800;margin-right:6px}
.hero-dl-label{margin:30px 0 10px;font-size:13px;color:#9fabb9}
.hero-actions{gap:10px}
.platform-buttons{display:flex;flex-wrap:nowrap;gap:10px}
.platform-btn{
  display:inline-flex;align-items:center;height:50px;flex:1 1 0;min-width:0;
  background:#366bb3;border:1px solid #3f60a1;border-radius:5px;color:#fff;
  overflow:hidden;transition:background .18s;
}
.platform-btn:hover{background:var(--blue-deep);color:#fff}
.platform-btn i{display:grid;place-items:center;width:44px;height:100%;flex:none;font-style:normal}
.platform-btn i svg{width:19px;height:19px}
.platform-btn span{padding-right:12px;font-size:14.5px;font-weight:700;white-space:nowrap}
.hero-note{color:#9fabb9}
.hero-note svg{color:#8fb3e6}
.blueprint{background:#fff;border:0;border-radius:8px;padding:10px;box-shadow:0 10px 30px rgba(0,0,0,.28)}
.blueprint::before,.blueprint::after{display:none}
.blueprint img{border-radius:4px}
.figure-caption{border-top:1px solid rgba(255,255,255,.16);color:#9fabb9;margin-top:14px}
.figure-caption b{color:#fff}
.rail-label{color:#8b98a7}
.hero-chevrons{display:flex;flex-direction:column;align-items:center;gap:5px;padding:0 0 26px}
.hero-chevrons span{
  width:9px;height:9px;border-right:2px solid #fff;border-bottom:2px solid #fff;
  transform:rotate(45deg);opacity:.7;animation:chev 1.8s ease-in-out infinite;
}
.hero-chevrons span:nth-child(2){animation-delay:.25s}
@keyframes chev{0%,100%{transform:rotate(45deg) translate(0,0)}50%{transform:rotate(45deg) translate(3px,3px)}}
@media (prefers-reduced-motion:reduce){.hero-chevrons span{animation:none}}

/* 三大特点（圆形图标） */
.trio-section{background:var(--paper);padding:60px 0 0}
.trio{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;text-align:center}
.trio-item h2{font-size:25px;font-weight:700;letter-spacing:.02em;margin:20px 0 10px;color:var(--ink)}
.trio-item p{font-size:13.5px;line-height:1.7;color:var(--muted);max-width:300px;margin:0 auto}
.trio-icon{
  width:104px;height:104px;margin:0 auto;border-radius:50%;
  background:#4d5f7c;display:grid;place-items:center;color:#fff;
}
.trio-icon svg{width:46px;height:46px}
.trio-rule{border:0;border-top:1px solid #e3e7ec;margin:54px 0 0}

/* 版本预览 */
.preview-section{padding:22px 0 56px;background:var(--paper)}
.preview-title{text-align:center;font-size:17px;font-weight:600;color:#131313;margin:0 0 18px}
.preview-frame{
  border-top:1px solid var(--blue);background:#fff;padding:8px;
  box-shadow:0 10px 34px rgba(30,52,84,.13);
}
.preview-frame img{width:100%;height:auto}

/* 功能卡片网格 */
.support-section{padding:0 0 64px;background:var(--paper)}
.support-title{
  font-size:clamp(22px,2.6vw,28px);font-weight:700;color:#131313;
  margin:0 0 26px;border-top:1px solid #e3e7ec;padding-top:34px;
}
.g-grid{display:flex;flex-wrap:wrap;justify-content:center;gap:16px}
.g-card{
  width:150px;height:150px;padding:10px;background:#fff;
  border:1px solid #dae2ec;border-radius:15px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  text-align:center;transition:border-color .18s,box-shadow .18s,transform .18s;
}
.g-card:hover{border-color:#adbed4;box-shadow:0 8px 20px rgba(30,52,84,.09);transform:translateY(-2px)}
.g-card .gi{width:46px;height:46px;border-radius:12px;display:grid;place-items:center;color:#fff;flex:none}
.g-card .gi svg{width:24px;height:24px}
.g-card b{font-size:14px;font-weight:600;color:#2a3441;line-height:1.4}
.gi-1{background:linear-gradient(135deg,#ffcf4d,#ff9f1c)}
.gi-2{background:linear-gradient(135deg,#6f8cff,#366bb3)}
.gi-3{background:linear-gradient(135deg,#5ed3c0,#12b58f)}
.gi-4{background:linear-gradient(135deg,#ff9a8b,#ff5f6d)}
.gi-5{background:linear-gradient(135deg,#c084fc,#7c3aed)}
.gi-6{background:linear-gradient(135deg,#7dd3fc,#0ea5e9)}
.gi-7{background:linear-gradient(135deg,#fca5a5,#dc2626)}
.gi-8{background:linear-gradient(135deg,#a3e635,#65a30d)}
.gi-9{background:linear-gradient(135deg,#fbbf24,#d97706)}
.gi-10{background:linear-gradient(135deg,#94a3b8,#475569)}
.gi-11{background:linear-gradient(135deg,#67e8f9,#0891b2)}
.gi-12{background:linear-gradient(135deg,#f9a8d4,#db2777)}

/* 字号与留白向参考站靠拢 */
.h1{font-size:clamp(30px,3.6vw,46px);line-height:1.14;letter-spacing:-.02em}
.h2{font-size:clamp(25px,2.9vw,34px);line-height:1.22;letter-spacing:-.012em}
.section{padding:64px 0}
.section.tight{padding:44px 0}
.page-head-grid{padding:40px 0 34px}

/* 卡片化的既有组件 */
.btn{border-radius:5px}
.index-rows{border-top:0;display:grid;gap:14px;margin-top:26px}
.index-row{
  background:#fff;border:1px solid #dae2ec;border-radius:10px;
  padding:24px 26px;grid-template-columns:64px minmax(0,1fr) 230px 44px;
}
.index-row:hover{background:#fff;padding-left:26px;border-color:#adbed4;box-shadow:0 8px 22px rgba(30,52,84,.08)}

.spec-grid{border:0;gap:16px}
.spec{border:1px solid #dae2ec;border-radius:10px;padding:26px}
.spec:hover{background:#fff;border-color:#adbed4;box-shadow:0 8px 22px rgba(30,52,84,.08)}

.showcase-figure .frame{border:1px solid #dae2ec;border-radius:10px;padding:8px;box-shadow:0 6px 22px rgba(30,52,84,.07)}

.editions{border-top:0;display:grid;gap:14px}
.edition{
  background:#fff;border:1px solid #dae2ec;border-radius:10px;
  padding:24px 26px;grid-template-columns:170px minmax(0,1fr) 130px 160px;
}

.steps{border-top:0;gap:16px}
.step{
  border:1px solid #dae2ec;border-right:1px solid #dae2ec;border-radius:10px;
  padding:28px 26px;background:#fff;
}
.step .big{color:var(--blue);-webkit-text-stroke:0;opacity:.22;font-size:52px;margin-bottom:16px}
.step:hover .big{-webkit-text-stroke:0;opacity:.45}
.step:hover{border-color:#adbed4;box-shadow:0 8px 22px rgba(30,52,84,.08)}

.acc{border:1px solid #dae2ec;border-radius:10px;background:#fff;padding:0 22px}
.acc-item{border-bottom:1px solid #edf1f6}
.acc-item:last-child{border-bottom:0}

.log-list{border-top:0;display:grid;gap:12px}
.log-row{background:#fff;border:1px solid #dae2ec;border-radius:10px;padding:18px 20px}
.log-row:hover{background:#fff;padding-left:20px;border-color:#adbed4;box-shadow:0 8px 22px rgba(30,52,84,.08)}

.data-strip{border:1px solid #dae2ec;border-radius:10px;background:#fff;overflow:hidden}
.data-cell{border-right:1px solid #edf1f6}

.cta{background:var(--navy)}
.cta .btn-solid{background:#366bb3}
.cta .btn-solid:hover{background:var(--blue-deep);color:#fff}

/* 浅色页脚 */
.footer{background:#fff;color:#6d7885;border-top:1px solid var(--line);padding-top:54px}
.footer .brand-mark{background:var(--steel)}
.footer .brand-text b{color:var(--ink)}
.footer .brand-text span{color:#98a2b0}
.footer-about{color:#7d8794}
.footer-col h4{color:var(--ink)}
.footer-col a{color:#6d7885}
.footer-col a:hover{color:var(--blue)}
.footer-col .mono{color:#8b95a2}
.footer-disclaimer{border-top:1px solid var(--line);color:#8b95a2}
.footer-disclaimer b{color:#4a5561}
.footer-bottom{border-top:1px solid var(--line);color:#98a2b0}
.footer-bottom a:hover{color:var(--blue)}

/* 内页 / 下载 / FAQ / 博客 / 关于 的统一卡片化 */
.page-head{background:#fff;border-bottom:1px solid var(--line)}
.page-head h1{color:var(--ink)}
.crumb{padding-top:16px}
.dl-card{border:1px solid #dae2ec;border-radius:10px;background:#fff;box-shadow:0 8px 26px rgba(30,52,84,.07)}
.hash{border:1px dashed #c3ccda;border-radius:8px;background:#f7f9fc}
.mirror{background:#fff;border:1px solid #dae2ec;border-radius:10px}
.faq-index{border-top:0;padding-top:0}
.faq-index a{border-bottom:1px solid #e3e8ef}
.faq-index .search-mini{border-radius:5px;border-color:var(--line-strong)}
.quote{border-left-color:var(--blue)}
.post-grid{border:0;display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.post-card{border:1px solid #dae2ec;border-radius:12px;overflow:hidden}
.post-card:hover{background:#fff;border-color:#adbed4;box-shadow:0 10px 26px rgba(30,52,84,.10)}
.post-cover{border-bottom:1px solid #edf1f6}
.filters button{border-radius:5px}
.filters button[aria-pressed="true"]{background:var(--blue);border-color:var(--blue)}
.about-art{border:1px solid #dae2ec;border-radius:10px;box-shadow:0 8px 26px rgba(30,52,84,.07)}
.timeline{border-top:1px solid #dae2ec}
.value-grid{border-top:1px solid #dae2ec;background:#fff;border-radius:10px;overflow:hidden}
.value{border-color:#edf1f6}
.to-top{background:var(--navy)}
.to-top:hover{background:var(--green)}

/* 主题响应式 */
@media (max-width:1080px){
  .hero-grid{grid-template-columns:1fr;padding:44px 0 38px}
  .edition{grid-template-columns:150px minmax(0,1fr) 140px}
}
@media (max-width:900px){
  .trio{grid-template-columns:1fr;gap:34px}
  .trio-rule{margin-top:38px}
  .index-row{grid-template-columns:44px minmax(0,1fr) 38px;padding:20px}
  .index-row:hover{padding-left:20px}
  .edition{grid-template-columns:1fr;padding:22px}
  .steps{grid-template-columns:1fr}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .g-card{width:calc(50% - 8px);max-width:170px;height:150px}
}
@media (max-width:620px){
  .hero-copy .display{font-size:clamp(26px,7vw,34px)}
  .section{padding:46px 0}
  .section.tight{padding:36px 0}
  .hero-copy .display .free-badge{display:inline-block;margin:10px 0 0 0;font-size:11px}
  .hero-stat strong{font-size:38px}
  .platform-buttons{flex-wrap:wrap}
  .platform-btn{flex:1 1 calc(50% - 5px);height:46px}
  .platform-btn i{width:38px}
  .platform-btn span{padding-right:10px;font-size:13.5px}
  .preview-frame{padding:5px}
  .post-grid{grid-template-columns:1fr}
  .g-card{width:calc(50% - 8px);height:140px}
}

/* ==========================================================================
   博客文章页
   ========================================================================== */

.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:11.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--blue);
}
.hero-tag i{width:6px;height:6px;background:var(--green);display:inline-block;flex:none}

.post-page{background:var(--paper);padding:34px 0 62px}
.article-wrap{
  display:grid;grid-template-columns:minmax(0,1fr) 286px;
  gap:30px;align-items:start;
}
.article-main{
  background:#fff;border:1px solid #dae2ec;border-radius:10px;
  padding:38px 46px 42px;box-shadow:0 8px 26px rgba(30,52,84,.06);
  min-width:0;
}
.article-topline{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;
  padding-bottom:18px;margin-bottom:26px;border-bottom:1px solid #edf1f6;
  font-size:12.5px;color:#85909d;
}
.article-topline span{display:inline-flex;align-items:center;gap:7px}
.article-topline .tag{
  padding:4px 11px;border-radius:20px;background:var(--blue-wash);
  color:var(--blue);font-weight:700;font-size:12px;letter-spacing:.04em;
}
.article-topline .dot{width:4px;height:4px;border-radius:50%;background:#c8d1dd}

.article-body{font-size:15.5px;line-height:1.95;color:#3c4550}
.article-body p{margin:0 0 17px}
.article-body h2{
  font-size:22px;line-height:1.45;font-weight:700;color:#1b232e;letter-spacing:-.012em;
  margin:40px 0 14px;padding-top:24px;border-top:1px solid #edf1f6;scroll-margin-top:96px;
}
.article-body h2:first-of-type{margin-top:6px;padding-top:0;border-top:0}
.article-body h3{font-size:17px;font-weight:700;color:#1b232e;margin:26px 0 8px;scroll-margin-top:96px}
.article-body strong{color:#1b232e;font-weight:700}
.article-body ul{list-style:disc;padding-left:23px;margin:0 0 18px}
.article-body ol{list-style:decimal;padding-left:23px;margin:0 0 18px}
.article-body li{margin:0 0 9px;padding-left:2px}
.article-body li::marker{color:var(--blue)}
.article-body a{color:var(--blue);border-bottom:1px solid rgba(54,107,179,.35);transition:border-color .18s,color .18s}
.article-body a:hover{color:var(--blue-deep);border-bottom-color:var(--blue-deep)}
.article-body code{
  font-family:ui-monospace,"SF Mono","Cascadia Mono",Consolas,monospace;
  font-size:13px;background:#f2f5f9;border:1px solid #e3e9f1;border-radius:4px;
  padding:1px 6px;color:#2f4d74;word-break:break-word;
}

.article-lead{
  font-size:16px;line-height:1.85;color:#2f3945;
  padding:16px 20px;background:#f7f9fc;border-left:3px solid var(--blue);
  border-radius:0 6px 6px 0;margin:0 0 26px;
}

.article-table{width:100%;margin:0 0 20px;font-size:13.5px;line-height:1.65;border:1px solid #dae2ec}
.article-table th,.article-table td{padding:11px 14px;border-bottom:1px solid #edf1f6;border-right:1px solid #edf1f6;text-align:left;vertical-align:top}
.article-table th{background:#eef4fb;color:#243040;font-weight:700;white-space:nowrap}
.article-table tr:last-child td{border-bottom:0}
.article-table td:last-child,.article-table th:last-child{border-right:0}

.article-steps{margin:0 0 22px;display:grid;gap:12px}
.article-step{
  display:grid;grid-template-columns:34px minmax(0,1fr);gap:14px;
  background:#f8fafd;border:1px solid #e4ebf4;border-radius:8px;padding:16px 18px;
}
.article-step .n{
  width:30px;height:30px;border-radius:50%;background:var(--blue);color:#fff;
  display:grid;place-items:center;font-size:13px;font-weight:700;
}
.article-step h4{margin:2px 0 6px;font-size:14.5px;color:#1b232e}
.article-step p{margin:0;font-size:13.8px;line-height:1.72;color:#5b6673}

.callout{
  margin:22px 0;padding:16px 20px;background:#f3f8fd;
  border:1px solid #dbe8f6;border-left:3px solid var(--blue);border-radius:0 6px 6px 0;
  font-size:14.5px;line-height:1.85;color:#3c4550;
}
.callout b{color:var(--blue-deep)}

.article-tags{
  display:flex;flex-wrap:wrap;gap:8px;
  margin:36px 0 0;padding-top:24px;border-top:1px solid #edf1f6;
}
.article-tags a{
  font-size:12.5px;padding:5px 13px;border:1px solid #dae2ec;border-radius:20px;
  background:#f8fafd;color:#5d6875;transition:border-color .18s,color .18s;
}
.article-tags a:hover{border-color:#adbed4;color:var(--blue)}

.post-side{position:sticky;top:88px;display:grid;gap:16px}
.side-card{background:#fff;border:1px solid #dae2ec;border-radius:10px;padding:20px 22px}
.side-card h3{font-size:13.5px;font-weight:700;color:#1b232e;margin:0 0 12px;letter-spacing:.02em}
.side-card .toc a{
  display:block;font-size:13px;line-height:1.55;padding:7px 0;color:#5d6875;
  border-bottom:1px dashed #edf1f6;
}
.side-card .toc a:last-child{border-bottom:0}
.side-card .toc a:hover{color:var(--blue)}
.side-card p{font-size:13px;line-height:1.7;color:#7d8794;margin:0 0 14px}
.side-card .btn{width:100%;justify-content:center;margin-bottom:8px}
.side-card .btn:last-child{margin-bottom:0}
.side-links{display:grid;gap:2px}
.side-links a{
  display:flex;justify-content:space-between;gap:10px;
  padding:8px 0;font-size:13px;color:#5d6875;border-bottom:1px dashed #edf1f6;
}
.side-links a:last-child{border-bottom:0}
.side-links a:hover{color:var(--blue)}
.side-links a span{color:#a2acb8;flex:none}

.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:24px}
.post-nav a{
  background:#fff;border:1px solid #dae2ec;border-radius:10px;padding:18px 22px;
  display:block;transition:border-color .18s,box-shadow .18s;
}
.post-nav a:hover{border-color:#adbed4;box-shadow:0 8px 22px rgba(30,52,84,.08)}
.post-nav .k{font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:#95a0ad;display:block;margin-bottom:6px}
.post-nav .t{font-size:14.5px;font-weight:700;color:#1b232e;line-height:1.5}
.post-nav a.next{text-align:right}

@media (max-width:1080px){
  .article-wrap{grid-template-columns:1fr}
  .post-side{position:static;grid-template-columns:1fr 1fr}
}
@media (max-width:760px){
  .post-side{grid-template-columns:1fr}
  .article-main{padding:28px 26px 32px}
}
@media (max-width:620px){
  .article-main{padding:24px 20px 28px;border-radius:8px}
  .article-body{font-size:15px;line-height:1.88}
  .article-body h2{font-size:20px;margin-top:32px}
  .article-table{font-size:12.5px}
  .article-table th,.article-table td{padding:9px 10px}
  .post-nav{grid-template-columns:1fr}
  .post-nav a.next{text-align:left}
  .article-step{grid-template-columns:30px minmax(0,1fr);padding:14px 14px}
}

@media (min-width:761px){
  .spec-grid.spec-grid-3{grid-template-columns:repeat(3,1fr)}
  .steps.steps-4{grid-template-columns:repeat(2,1fr)}
}
@media (min-width:1081px){
  .steps.steps-4{grid-template-columns:repeat(4,1fr)}
}