/* ============================================================
   源程序科技官网 2026 · 软件工程风
   Design tokens
   ============================================================ */
:root{
  --bg:#fafaf8;
  --panel:#ffffff;
  --ink:#1b1f27;
  --ink-2:#57606a;
  --ink-3:#8c959f;
  --line:#d9dee5;
  --line-dark:#1b1f27;
  --blue:#0f62d7;
  --blue-soft:#eaf1fb;
  --green:#1a7f37;
  --green-soft:#e6f4ea;
  --red:#cf222e;
  --amber:#9a6700;
  --term:#0e1319;
  --term-line:#232c38;
  --term-txt:#c9d5e1;
  --term-green:#3fb950;
  --term-blue:#6cb6ff;
  --term-amber:#e3b341;
  --term-pink:#f47067;
  --sans:"PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --mono:"SF Mono","JetBrains Mono",ui-monospace,Menlo,Consolas,monospace;
  --r:8px;
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--sans);background:var(--bg);color:var(--ink);
  line-height:1.75;overflow-x:hidden;-webkit-font-smoothing:antialiased;
}
::selection{background:rgba(15,98,215,.16)}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font-family:inherit}
.container{max-width:1180px;margin:0 auto;padding:0 28px}
.mono{font-family:var(--mono)}

.skip-link{
  position:absolute;top:-48px;left:8px;z-index:200;
  background:var(--blue);color:#fff;padding:8px 16px;border-radius:6px;font-size:14px;
}
.skip-link:focus{top:8px}

/* ============ 通用 ============ */
.btn{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 26px;font-size:15px;font-weight:600;
  border-radius:var(--r);border:1px solid var(--line-dark);
  cursor:pointer;background:var(--panel);color:var(--ink);
  transition:transform .2s,box-shadow .2s,background .2s,color .2s,border-color .2s;
}
.btn svg{width:16px;height:16px}
.btn-primary{background:var(--blue);border-color:var(--blue);color:#fff}
.btn-primary:hover{transform:translate(-2px,-2px);box-shadow:3px 3px 0 var(--line-dark)}
.btn-plain:hover{transform:translate(-2px,-2px);box-shadow:3px 3px 0 rgba(27,31,39,.22);background:var(--bg)}
.btn-term{font-family:var(--mono);font-size:13.5px;background:var(--term);border-color:var(--term);color:var(--term-txt)}
.btn-term:hover{transform:translate(-2px,-2px);box-shadow:3px 3px 0 rgba(27,31,39,.3);color:#fff}
.btn-term b{color:var(--term-green);font-weight:600}

.kicker{
  font-family:var(--mono);font-size:12.5px;letter-spacing:.18em;
  color:var(--blue);margin-bottom:16px;display:flex;align-items:center;gap:10px;
}
.kicker::before{content:"##";color:var(--ink-3);letter-spacing:0}
.sec-title{
  font-size:clamp(28px,3.8vw,42px);font-weight:800;line-height:1.3;
  letter-spacing:-.01em;margin-bottom:14px;
}
.sec-desc{color:var(--ink-2);font-size:16px;max-width:560px}
.section{padding:100px 0}
.sec-head{margin-bottom:54px}
.sec-path{font-family:var(--mono);font-size:12px;color:var(--ink-3);display:block;margin-bottom:8px}

.reveal{opacity:0;transform:translateY(16px);transition:opacity .55s ease,transform .55s ease}
.reveal.in{opacity:1;transform:none}
.d1{transition-delay:.07s}.d2{transition-delay:.14s}.d3{transition-delay:.21s}

/* 徽章（shields 风） */
.badges{display:flex;gap:10px;flex-wrap:wrap}
.badge{display:inline-flex;font-family:var(--mono);font-size:12px;border-radius:5px;overflow:hidden;border:1px solid var(--line)}
.badge b{background:#3d444d;color:#fff;padding:5px 10px;font-weight:500}
.badge span{background:var(--panel);padding:5px 10px;color:var(--ink);font-weight:600}
.badge.g span{color:var(--green)}
.badge.b span{color:var(--blue)}
.badge.a span{color:var(--amber)}

/* ============ 状态条 ============ */
.statusbar{
  background:var(--term);color:#9fb0c0;
  font-family:var(--mono);font-size:11.5px;letter-spacing:.05em;
}
.statusbar .container{display:flex;justify-content:space-between;gap:14px;padding-top:8px;padding-bottom:8px}
.statusbar i{font-style:normal}
.statusbar .ok{color:var(--term-green)}
.statusbar .br{color:var(--term-blue)}

/* ============ 导航 ============ */
.nav{
  position:sticky;top:0;z-index:60;
  background:rgba(250,250,248,.95);backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.brand{display:flex;align-items:center;gap:11px}
.brand img{width:36px;height:36px;border-radius:8px}
.brand .cn{font-size:19px;font-weight:800;letter-spacing:.02em}
.brand .en{font-family:var(--mono);font-size:9.5px;color:var(--ink-3);letter-spacing:.28em;display:block;line-height:1.5}
.nav-links{display:flex;list-style:none;gap:2px}
.nav-links a{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 14px;font-size:14.5px;font-weight:500;color:var(--ink-2);
  border-radius:7px;transition:background .2s,color .2s;position:relative;
}
.nav-links a i{font-style:normal;font-family:var(--mono);font-size:11px;color:var(--ink-3)}
.nav-links a:hover{background:#eef1f4;color:var(--ink)}
.nav-links a.active{color:var(--blue);font-weight:600}
.nav-links a.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-15px;height:2px;background:var(--blue);
}
.nav-links a.active i{color:var(--blue)}
.nav .btn{padding:9px 18px;font-size:13.5px}
.burger{display:none;flex-direction:column;gap:5px;background:none;border:0;cursor:pointer;padding:8px}
.burger span{width:22px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s,opacity .25s}
.burger.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 移动端抽屉 */
.drawer{
  display:none;position:fixed;top:0;right:0;bottom:0;width:min(78vw,320px);z-index:100;
  background:var(--panel);border-left:1px solid var(--line-dark);
  padding:80px 28px 28px;flex-direction:column;gap:4px;
  transform:translateX(100%);transition:transform .3s ease;
}
.drawer.open{transform:none}
.drawer a{
  display:flex;align-items:center;gap:12px;
  padding:13px 12px;font-size:16px;font-weight:600;border-radius:8px;
}
.drawer a i{font-style:normal;font-family:var(--mono);font-size:12px;color:var(--ink-3)}
.drawer a:hover{background:var(--blue-soft);color:var(--blue)}
.drawer .btn{margin-top:18px;justify-content:center}
.scrim{
  display:none;position:fixed;inset:0;z-index:90;background:rgba(27,31,39,.4);
  opacity:0;transition:opacity .3s;
}
.scrim.open{opacity:1}

/* ============ Hero ============ */
.hero{position:relative;border-bottom:1px solid var(--line);overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.6;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:32px 32px;
  mask-image:radial-gradient(ellipse 75% 65% at 30% 40%,#000 20%,transparent 72%);
  -webkit-mask-image:radial-gradient(ellipse 75% 65% at 30% 40%,#000 20%,transparent 72%);
}
.hero .container{
  position:relative;display:grid;grid-template-columns:1.06fr .94fr;gap:60px;align-items:center;
  padding-top:92px;padding-bottom:92px;
}
.cmt{font-family:var(--mono);font-size:15px;color:var(--ink-3);display:block;margin-bottom:14px}
.hero h1{
  font-size:clamp(36px,4.6vw,58px);font-weight:800;line-height:1.24;
  letter-spacing:-.015em;margin-bottom:24px;
}
.hero h1 .nowrap{white-space:nowrap}
.hero h1 .em{
  color:var(--blue);
  text-decoration:underline wavy rgba(26,127,55,.55);
  text-decoration-thickness:2.5px;text-underline-offset:9px;
}
.hero-sub{font-size:16.5px;color:var(--ink-2);max-width:500px;margin-bottom:30px}
.hero .badges{margin-bottom:38px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:52px}
.spec-strip{display:flex;border:1px solid var(--line-dark);border-radius:10px;overflow:hidden;background:var(--panel);max-width:540px}
.spec{flex:1;padding:16px 20px;position:relative}
.spec+.spec{border-left:1px solid var(--line)}
.spec b{font-size:31px;font-weight:800;line-height:1.1;display:flex;align-items:baseline;gap:2px;font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.spec b i{font-style:normal;color:var(--blue);font-size:19px;font-weight:700}
.spec span{font-size:12.5px;color:var(--ink-2);display:block;margin-top:3px}

/* 终端窗口 */
.term{
  background:var(--term);border-radius:12px;border:1px solid var(--term-line);
  box-shadow:0 24px 48px -20px rgba(15,23,32,.45);overflow:hidden;
}
.term-bar{display:flex;align-items:center;gap:7px;padding:13px 16px;border-bottom:1px solid var(--term-line)}
.term-bar i{width:11px;height:11px;border-radius:50%;background:#39424e}
.term-bar i:nth-child(1){background:#f47067}
.term-bar i:nth-child(2){background:#e3b341}
.term-bar i:nth-child(3){background:#57ab5a}
.term-bar em{font-style:normal;margin-left:8px;font-family:var(--mono);font-size:11.5px;color:#768390;letter-spacing:.04em}
.term-body{
  padding:20px 22px 24px;font-family:var(--mono);font-size:13px;line-height:2.15;
  color:var(--term-txt);min-height:308px;
}
.t-line{display:flex;gap:10px;white-space:pre-wrap}
.t-p{color:var(--term-green);flex-shrink:0}
.t-c{color:#768390}
.t-ok{color:var(--term-green)}
.t-key{color:var(--term-blue)}
.t-str{color:var(--term-amber)}
.t-spin{color:var(--term-pink)}
.t-caret{display:inline-block;width:8px;height:14px;background:var(--term-txt);vertical-align:-2px;animation:blink 1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}

/* ============ git log 跑马灯 ============ */
.gitlog{background:var(--term);border-bottom:1px solid var(--term-line);overflow:hidden;padding:11px 0}
.gitlog .track{display:flex;gap:48px;width:max-content;animation:gscroll 34s linear infinite}
.gitlog span{font-family:var(--mono);font-size:12px;letter-spacing:.04em;white-space:nowrap;color:#9fb0c0}
.gitlog b{color:var(--term-amber);font-weight:500;margin-right:12px}
.gitlog i{font-style:normal;color:var(--term-green);margin-right:12px}
@keyframes gscroll{to{transform:translateX(-50%)}}

/* ============ 服务：模块目录 ============ */
.svc-list{border:1px solid var(--line-dark);border-radius:12px;overflow:hidden;background:var(--panel)}
.svc-head{
  display:flex;justify-content:space-between;gap:12px;
  background:#f2f4f7;border-bottom:1px solid var(--line);
  padding:11px 24px;font-family:var(--mono);font-size:11.5px;color:var(--ink-2);letter-spacing:.1em;
}
.svc{
  display:grid;grid-template-columns:210px 1fr auto;gap:26px;align-items:center;
  padding:26px 24px;border-bottom:1px solid var(--line);
  transition:background .2s;position:relative;
}
.svc:last-child{border-bottom:0}
.svc:hover{background:#f7f9fc}
.svc::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--blue);transform:scaleY(0);transition:transform .22s;
}
.svc:hover::before{transform:scaleY(1)}
.svc-path{font-family:var(--mono);font-size:12.5px;color:var(--ink-3)}
.svc-path b{color:var(--blue);font-weight:500}
.svc-main h3{font-size:19px;font-weight:700;margin-bottom:5px;letter-spacing:-.01em}
.svc-main p{font-size:14px;color:var(--ink-2)}
.svc-tags{display:flex;gap:8px;flex-wrap:wrap;justify-content:flex-end}
.svc-tags i{
  font-style:normal;font-family:var(--mono);font-size:11.5px;color:var(--ink-2);
  border:1px solid var(--line);border-radius:999px;padding:4px 11px;background:var(--bg);
  transition:.2s;
}
.svc:hover .svc-tags i{border-color:var(--blue);color:var(--blue)}

/* ============ 案例：合并请求 ============ */
.cases-sec{background:#f2f4f7;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.filters{
  display:inline-flex;flex-wrap:wrap;margin-bottom:48px;
  border:1px solid var(--line-dark);border-radius:9px;overflow:hidden;background:var(--panel);
}
.chip{
  padding:10px 20px;font-size:13px;cursor:pointer;font-family:var(--mono);
  background:transparent;border:0;border-right:1px solid var(--line);color:var(--ink-2);
  transition:.2s;
}
.chip:last-child{border-right:0}
.chip:hover{color:var(--blue);background:var(--blue-soft)}
.chip.active{background:var(--ink);color:#fff}
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case{
  background:var(--panel);border:1px solid var(--line-dark);border-radius:12px;
  overflow:hidden;transition:transform .25s,box-shadow .25s;position:relative;
}
.case:hover{transform:translate(-3px,-3px);box-shadow:5px 5px 0 rgba(27,31,39,.18)}
.case.hide{display:none}
.case-chrome{
  display:flex;align-items:center;gap:6px;
  padding:9px 12px;border-bottom:1px solid var(--line);background:#f7f8fa;
}
.case-chrome i{width:9px;height:9px;border-radius:50%;background:#d5dae1}
.case-chrome em{
  font-style:normal;flex:1;text-align:center;
  font-family:var(--mono);font-size:10.5px;color:var(--ink-3);
  background:var(--bg);border:1px solid var(--line);border-radius:5px;
  padding:2px 10px;margin:0 8px;letter-spacing:.04em;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.case-img{overflow:hidden;border-bottom:1px solid var(--line)}
.case-img img{width:100%;height:auto;aspect-ratio:16/9.6;object-fit:cover;transition:transform .45s ease}
.case:hover .case-img img{transform:scale(1.04)}
.case-body{padding:18px 20px 14px}
.case-merge{display:flex;align-items:center;gap:9px;margin-bottom:10px}
.merged{
  display:inline-flex;align-items:center;gap:5px;
  font-family:var(--mono);font-size:10.5px;font-weight:600;letter-spacing:.06em;
  background:var(--green-soft);color:var(--green);border:1px solid rgba(26,127,55,.3);
  padding:3px 9px;border-radius:999px;
}
.merged::before{content:"✓"}
.case-branch{font-family:var(--mono);font-size:11px;color:var(--ink-3);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.case-body h3{font-size:18px;font-weight:700;margin-bottom:6px;letter-spacing:-.01em}
.case-body p{font-size:13.5px;color:var(--ink-2);line-height:1.7}
.case-foot{
  display:flex;justify-content:space-between;align-items:center;gap:8px;
  border-top:1px solid var(--line);padding:11px 20px;
  font-family:var(--mono);font-size:11.5px;color:var(--ink-3);
}
.case-foot .diff b{color:var(--green);font-weight:600}
.case-foot .diff i{font-style:normal;color:var(--red);margin-left:6px}

/* ============ 理念：行为准则 ============ */
.terms{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.rule{
  background:var(--panel);border:1px solid var(--line);border-radius:12px;
  padding:26px 26px 24px;transition:border-color .2s,transform .2s,box-shadow .2s;
}
.rule:hover{border-color:var(--line-dark);transform:translateY(-3px);box-shadow:0 10px 24px -14px rgba(27,31,39,.25)}
.rule .no{
  font-family:var(--mono);font-size:11.5px;color:var(--red);letter-spacing:.1em;
  display:inline-flex;border:1px solid rgba(207,34,46,.35);background:#fdf0f0;
  border-radius:6px;padding:2px 9px;margin-bottom:14px;
}
.rule h3{font-size:17px;font-weight:700;margin-bottom:8px}
.rule p{font-size:13.5px;color:var(--ink-2)}

/* ============ 技术栈：依赖清单 ============ */
.bom{border:1px solid var(--line-dark);border-radius:12px;overflow:hidden;background:var(--panel)}
.bom-head{
  display:grid;grid-template-columns:180px 1fr;
  font-family:var(--mono);font-size:11.5px;letter-spacing:.12em;color:#fff;background:var(--ink);
}
.bom-head span{padding:11px 22px}
.bom-row{display:grid;grid-template-columns:180px 1fr;border-top:1px solid var(--line)}
.bom-row:first-of-type{border-top:0}
.bom-cat{
  padding:19px 22px;font-weight:700;font-size:15.5px;
  border-right:1px solid var(--line);display:flex;align-items:center;gap:9px;
}
.bom-cat::before{content:"▸";color:var(--blue);font-size:12px}
.bom-items{padding:14px 22px;display:flex;flex-wrap:wrap;gap:9px;align-items:center}
.bom-items i{
  font-style:normal;font-family:var(--mono);font-size:12.5px;color:var(--ink-2);
  border:1px solid var(--line);border-radius:999px;padding:5px 13px;background:var(--bg);
  transition:.2s;cursor:default;
}
.bom-items i:hover{border-color:var(--blue);color:var(--blue);background:var(--blue-soft);transform:translateY(-1px)}

/* ============ 流程：CI 流水线 ============ */
.pipe{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stage{
  background:var(--panel);border:1px solid var(--line);border-radius:12px;
  padding:24px 24px 22px;position:relative;transition:border-color .2s,transform .2s;
}
.stage:hover{border-color:var(--line-dark);transform:translateY(-3px)}
.stage-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.stage-top .id{font-family:var(--mono);font-size:11.5px;color:var(--ink-3);letter-spacing:.1em}
.stage-top .st{
  width:22px;height:22px;border-radius:50%;
  background:var(--green-soft);color:var(--green);border:1px solid rgba(26,127,55,.35);
  display:flex;align-items:center;justify-content:center;font-size:11.5px;font-weight:700;
}
.stage h3{font-size:17px;font-weight:700;margin-bottom:7px}
.stage p{font-size:13.5px;color:var(--ink-2)}
.stage::after{
  content:"";position:absolute;right:-19px;top:50%;width:20px;height:1.5px;background:var(--ink-3);
}
.stage:last-child::after{display:none}

/* ============ CTA ============ */
.invite{
  border:1px solid var(--line-dark);border-radius:16px;background:var(--panel);
  padding:64px 56px;display:grid;grid-template-columns:1.35fr 1fr;gap:48px;align-items:center;
  position:relative;overflow:hidden;
}
.invite::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);
  background-size:28px 28px;
  mask-image:radial-gradient(ellipse 60% 90% at 88% 50%,#000,transparent 70%);
  -webkit-mask-image:radial-gradient(ellipse 60% 90% at 88% 50%,#000,transparent 70%);
}
.invite h2{font-size:clamp(26px,3.4vw,38px);font-weight:800;line-height:1.32;margin-bottom:14px;letter-spacing:-.01em}
.invite h2 em{font-style:normal;color:var(--blue)}
.invite p{color:var(--ink-2);font-size:15.5px;max-width:460px}
.invite-actions{display:flex;flex-direction:column;gap:13px;position:relative}

/* ============ 页脚 ============ */
footer{padding:84px 0 0}
.tblock{border:1px solid var(--line-dark);border-radius:14px;overflow:hidden;background:var(--panel)}
.tblock-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr}
.tcell{padding:26px 26px;border-right:1px solid var(--line)}
.tcell:last-child{border-right:0}
.tcell h4{font-family:var(--mono);font-size:11px;letter-spacing:.18em;color:var(--ink-3);margin-bottom:14px;font-weight:600}
.tcell ul{list-style:none}
.tcell li{margin-bottom:9px;font-size:13.5px;color:var(--ink-2)}
.tcell li a:hover{color:var(--blue)}
.tcell p{font-size:13px;color:var(--ink-2);margin-top:12px;line-height:1.8}
.tblock-bottom{
  border-top:1px solid var(--line);background:#f7f8fa;
  display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;
  padding:14px 26px;font-family:var(--mono);font-size:11.5px;color:var(--ink-3);letter-spacing:.04em;
}
.tblock-bottom a:hover{color:var(--blue)}
.foot-end{padding:22px 0;text-align:center;font-family:var(--mono);font-size:11px;color:var(--ink-3);letter-spacing:.16em}
.foot-end b{color:var(--green);font-weight:600}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .hero .container{grid-template-columns:1fr;gap:56px}
  .term{max-width:600px}
  .svc{grid-template-columns:1fr;gap:10px}
  .svc-tags{justify-content:flex-start}
  .case-grid{grid-template-columns:repeat(2,1fr)}
  .terms{grid-template-columns:repeat(2,1fr)}
  .pipe{grid-template-columns:repeat(2,1fr)}
  .stage::after{display:none}
  .invite{grid-template-columns:1fr;padding:48px 36px}
  .tblock-top{grid-template-columns:1fr 1fr}
  .tcell{border-bottom:1px solid var(--line)}
}
@media (max-width:680px){
  .section{padding:70px 0}
  .nav-links,.nav .btn-primary{display:none}
  .burger{display:flex}
  .drawer{display:flex}
  .scrim.open{display:block}
  .statusbar span:nth-child(2){display:none}
  .hero .container{padding-top:56px;padding-bottom:64px}
  .spec-strip{flex-direction:column}
  .spec+.spec{border-left:0;border-top:1px solid var(--line)}
  .case-grid,.terms,.pipe{grid-template-columns:1fr}
  .tblock-top{grid-template-columns:1fr}
  .tcell{border-right:0}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}