@charset "UTF-8";
/* ============================================================
   思维导图 · 软件发布页样式
   设计令牌与组件类沿用本站「项目画布」发布页，保证同一套视觉语言
   ============================================================ */
:root{
  --ink:#172031;--muted:#697386;--accent:#4358d9;--line:#e3e7ed;--soft:#f5f7fb;
  --ok:#08bc88;--warn:#f6d64a;--purple:#8251be;--red:#d63b38;
  font:16px/1.7 "Segoe UI","Microsoft YaHei UI","Microsoft YaHei",sans-serif;
  color:var(--ink);background:#fff;scroll-behavior:smooth
}
*{box-sizing:border-box}
body{margin:0}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer}
button,a,summary{-webkit-tap-highlight-color:transparent}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid #8194ff;outline-offset:5px}

.wrap{width:min(1240px,calc(100% - 64px));margin-inline:auto}

/* ---------- 导航 ---------- */
.nav{height:92px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);gap:24px}
.brand{display:flex;align-items:center;gap:12px;font-weight:700;font-size:20px;white-space:nowrap}
.brand span{font-size:10px;letter-spacing:1.6px;border-left:1px solid var(--line);padding-left:12px;color:var(--muted)}
nav{display:flex;gap:30px;font-size:14px}
nav a:hover,.text-link:hover{color:var(--accent)}
.nav-start{font-size:14px;font-weight:600;background:var(--soft);padding:10px 18px;border-radius:8px}

/* ---------- 首屏 ---------- */
.hero{padding-block:104px 78px;display:grid;grid-template-columns:1fr 1.08fr;gap:38px;align-items:center}
.eyebrow{font-size:12px;letter-spacing:1.7px;font-weight:600;color:var(--muted);margin:0 0 25px}
.pill{font-size:12px;letter-spacing:0;background:#e9edff;color:var(--accent);padding:6px 10px;border-radius:5px;margin-right:8px}
h1{font-size:clamp(38px,3.9vw,58px);line-height:1.25;letter-spacing:-2px;font-weight:750;margin:0 0 25px}
h1 em{font-style:normal;color:var(--accent)}
.lead{font-size:17px;line-height:1.9;color:var(--muted);margin:0 0 30px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.button{display:inline-flex;align-items:center;justify-content:space-between;gap:24px;padding:15px 23px;border-radius:9px;font-size:15px;font-weight:600;border:1px solid transparent;transition:transform .16s,background .16s}
.button:hover{transform:translateY(-2px)}
.primary{background:var(--accent);color:#fff;box-shadow:0 12px 26px -14px #4358d9}
.primary:hover{background:#3447c7}
.secondary{background:#fff;border-color:var(--line)}
.dark{background:var(--ink);color:#fff}
.micro{font-size:12px;color:var(--muted);margin-top:20px}

/* ---------- 首屏演示：纯 CSS 树形连接，任何宽度都对齐 ---------- */
.demo{background:var(--soft);border:1px solid #dfe5f1;border-radius:17px;box-shadow:0 30px 65px -32px #24387865,0 0 70px -20px #b9c6f240;transform:rotate(-1deg);overflow:hidden}
.demo-bar,.demo-footer{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 18px;background:#fff;color:var(--muted);font-size:11px;border-bottom:1px solid var(--line)}
.demo-bar button{font-size:11px;padding:4px 9px;border:1px solid var(--line);border-radius:5px;background:var(--soft);color:inherit}
.window-dots{color:#c9d0dd;letter-spacing:3px}
.demo-canvas{position:relative;display:flex;align-items:center;min-height:340px;padding:26px 22px 46px;overflow-x:auto;overflow-y:hidden}
.demo-tip{position:absolute;left:22px;bottom:12px;font-size:10.5px;color:var(--muted);margin:0}

.demo-node{font:inherit;font-size:13px;line-height:1.45;padding:9px 13px;border-radius:9px;background:#fff;border:1.5px solid #cfd6e6;color:#3e4656;box-shadow:0 6px 16px #2438780f;cursor:pointer;transition:transform .16s,box-shadow .16s,border-color .16s;white-space:nowrap;flex:0 0 auto}
.demo-node:hover{transform:translateY(-2px);box-shadow:0 12px 24px #2438781f}
.demo-node.root{background:#4e61db;border-color:#4e61db;color:#fff;font-weight:600;font-size:14px}
.demo-node.lv2{font-weight:600}
.demo-node.lv3{font-size:12px;padding:7px 11px;border-style:dashed;color:#5b6478}
.demo-node.on{background:#eef1ff;border-color:var(--accent);color:var(--accent)}

/* 树形连接：每层一条竖脊 + 每项一段横杠，首尾自动收口 */
.mmtree{--w:#9ca8bf;display:flex;align-items:center;min-width:max-content}
.mmtree-branches{position:relative;display:flex;flex-direction:column;gap:12px;margin-left:34px}
.mmtree-branches::before{content:'';position:absolute;left:-34px;top:50%;width:34px;height:1.6px;background:var(--w)}
.mmtree-branch{position:relative;display:flex;align-items:center;padding-left:34px}
.mmtree-branch::before{content:'';position:absolute;left:0;top:50%;width:34px;height:1.6px;background:var(--w);transform:translateY(-50%)}
.mmtree-branch::after{content:'';position:absolute;left:0;top:0;bottom:0;width:1.6px;background:var(--w)}
.mmtree-branch:first-child::after{top:50%}
.mmtree-branch:last-child::after{bottom:50%}
.mmtree-branch:only-child::after{display:none}

.mmtree-leaves{position:relative;display:flex;flex-direction:column;gap:7px;margin-left:30px}
.mmtree-leaves::before{content:'';position:absolute;left:-30px;top:50%;width:30px;height:1.6px;background:var(--w)}
.mmleaf{position:relative;display:flex;align-items:center;padding-left:30px}
.mmleaf::before{content:'';position:absolute;left:0;top:50%;width:30px;height:1.6px;background:var(--w);transform:translateY(-50%)}
.mmleaf::after{content:'';position:absolute;left:0;top:0;bottom:0;width:1.6px;background:var(--w)}
.mmleaf:first-child::after{top:50%}
.mmleaf:last-child::after{bottom:50%}
.mmleaf:only-child::after{display:none}

/* 主题色标 —— 让同一层级的兄弟节点各有识别色 */
.mmtree-branch[data-c="0"]>.demo-node{border-left:4px solid var(--accent)}
.mmtree-branch[data-c="1"]>.demo-node{border-left:4px solid var(--ok)}
.mmtree-branch[data-c="2"]>.demo-node{border-left:4px solid var(--purple)}

.demo.night{background:#1b1e26}
.night .demo-bar,.night .demo-footer{background:#232731;color:#a1aabc;border-color:#383e4c}
.night .mmtree{--w:#4a5162}
.night .demo-node{background:#262a34;border-color:#3b4150;color:#c3cad8}
.night .demo-node.root{background:#4e61db;border-color:#4e61db;color:#fff}
.night .demo-node.on{background:#2c3350;border-color:var(--accent);color:#a9b7ff}
.night .demo-tip{color:#9aa3b4}

/* ---------- 三条卖点 ---------- */
.benefits{border-top:1px solid var(--line);border-bottom:1px solid var(--line);display:flex;justify-content:space-around;padding:22px 0;font-size:12px;color:#929cae}
.benefits b{font-size:14px;color:var(--muted);margin-left:14px;font-weight:500}

/* ---------- 通用区块 ---------- */
.section{padding-block:90px}
.section-head{max-width:680px;margin-bottom:42px}
.section-head .eyebrow,.workflow .eyebrow,.essentials .eyebrow{margin-bottom:14px}
h2{font-size:clamp(29px,3vw,42px);line-height:1.35;letter-spacing:-1px;margin:0 0 20px}
p{color:var(--muted)}
.section-head p:last-child{max-width:570px}
h3{font-size:20px;margin:16px 0 10px;line-height:1.4}

/* ---------- 功能网格 ---------- */
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:0}
.features article{padding:30px 34px 34px 0;border-top:1px solid var(--line);min-height:235px}
.features article:nth-child(3n+2),.features article:nth-child(3n){padding-left:30px;border-left:1px solid var(--line)}
.feature-num{font-size:12px;color:var(--accent);letter-spacing:1px}
.features p{font-size:15px;line-height:1.8;margin:0}

/* ---------- 主题色带（替代原站的状态胶囊） ---------- */
.theme-chips{display:flex;gap:6px;margin-top:14px;flex-wrap:wrap}
.theme-chips span{width:22px;height:22px;border-radius:6px;border:1px solid #00000014}

/* ---------- 结构示意图 ---------- */
.layout-strip{display:flex;gap:10px;margin-top:16px;flex-wrap:wrap}
.layout-strip span{font-size:11px;padding:4px 9px;border:1px solid var(--line);border-radius:5px;color:var(--muted);background:#fff}

/* ---------- 流程区 ---------- */
.workflow{background:var(--soft);border-block:1px solid var(--line)}
.workflow-grid{display:grid;grid-template-columns:1fr 1fr;gap:110px;align-items:center}
.steps{padding:0;list-style:none;counter-reset:step}
.steps li{counter-increment:step;padding:12px 0 12px 47px;position:relative}
.steps li:before{content:'0' counter(step);position:absolute;left:0;top:14px;font-size:12px;color:var(--accent);font-weight:600}
.steps b{display:block;font-size:16px}
.steps span{display:block;font-size:14px;color:var(--muted)}
.md-card{background:#fff;border:1px solid var(--line);border-radius:13px;padding:25px 28px;box-shadow:0 25px 60px -45px #17203180;transform:rotate(1deg)}
.file-bar{display:flex;justify-content:space-between;font-size:12px;color:var(--muted);padding-bottom:16px;border-bottom:1px solid var(--line)}
.file-bar span:last-child{font-size:10px;letter-spacing:1.5px}
pre{font:13px/2.1 Consolas,"Microsoft YaHei",monospace;white-space:pre-wrap;overflow-wrap:anywhere;margin:25px 0;color:#4358d9}
.code-muted{color:var(--ink);font-weight:600}
.md-card p{font-size:13px}
.md-card button{width:100%;font-size:14px}
.md-card details{font-size:12px;margin-top:14px;color:var(--muted)}
#copy-result{display:block;color:#087351;font-size:12px;margin-top:8px}

/* ---------- 两种版本 ---------- */
.editions{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.edition{padding:40px;border:1px solid var(--line);border-radius:15px;display:flex;flex-direction:column}
.edition.web{background:#f6f8ff;border-color:#ced6fa}
.edition-type{font-size:12px;letter-spacing:1.5px;color:var(--muted)}
.edition h3{font-size:29px;margin-top:25px}
.edition p{font-size:15px}
.edition ul{list-style:none;padding:0;margin:12px 0 30px;color:#455069;font-size:15px}
.edition li{padding:8px 0}
.edition li:before{content:'✓';color:var(--accent);margin-right:12px}
.edition .button{margin-top:auto;justify-content:space-between}
.edition small{font-size:12px;color:var(--muted);margin-top:16px}
.checksum{margin-top:25px;color:var(--muted);font-size:13px}
.checksum code{overflow-wrap:anywhere}
.notice{margin-top:16px;padding:12px 15px;border-radius:9px;background:#fff8e1;border:1px solid #f0e0b0;font-size:12.5px;color:#6d570b}

/* ---------- 上手与快捷键 ---------- */
.essentials{display:grid;grid-template-columns:1fr 1fr;gap:100px;border-top:1px solid var(--line)}
.text-link{font-weight:600;color:var(--accent)}
.shortcuts>div{display:flex;justify-content:space-between;align-items:center;padding:15px 0;border-bottom:1px solid var(--line);font-size:15px}
kbd{font:12px Consolas,monospace;border:1px solid var(--line);padding:5px 10px;border-radius:5px;background:var(--soft);box-shadow:0 2px 0 var(--line)}

/* ---------- 常见问题 ---------- */
.faq{border-top:1px solid var(--line);max-width:900px}
.faq details{padding:22px 0;border-bottom:1px solid var(--line)}
summary{cursor:pointer}
.faq summary{font-size:17px;font-weight:600;list-style:none;padding-right:30px;position:relative}
.faq summary:after{content:'＋';position:absolute;right:0;color:var(--muted)}
.faq details[open] summary:after{content:'−'}
.faq p{font-size:15px;max-width:750px;margin-bottom:0}
.faq a{color:var(--accent);font-size:14px}

/* ---------- 收尾 ---------- */
.closing{background:#172031;color:#fff;text-align:center;padding:80px 0}
.closing .eyebrow{color:#adb8d0;font-size:11px}
.closing h2{font-size:40px;margin-bottom:30px}
.closing p{color:#adb8d0;margin-bottom:30px}
.site-footer{padding-block:32px;display:flex;align-items:center;gap:30px;flex-wrap:wrap}
.site-footer p{font-size:12px;margin-right:auto}
.site-footer>div{display:flex;gap:20px;font-size:12px;color:var(--muted)}
.skip{position:absolute;top:-100px;left:10px}
.skip:focus{top:10px;background:#fff;z-index:99;padding:10px}

/* ---------- 响应式 ---------- */
@media(max-width:1050px){
  .brand span{display:none}
  .hero{grid-template-columns:1fr;gap:55px;padding-top:70px}
  .hero-copy{max-width:700px}
  .demo{width:min(650px,100%);justify-self:center;transform:none}
  .workflow-grid{gap:50px}
  .features{grid-template-columns:repeat(2,1fr)}
  .features article:nth-child(n){padding:26px 25px 26px 0;border-left:0}
  .features article:nth-child(even){padding-left:25px;border-left:1px solid var(--line)}
  .essentials{gap:45px}
}
@media(max-width:640px){
  .wrap{width:calc(100% - 36px)}
  .nav{height:76px;gap:10px}
  .brand{font-size:18px;gap:8px}
  nav{display:none}
  .nav-start{font-size:12px;padding:9px 12px}
  .hero{padding:52px 0 42px;gap:38px}
  h1{font-size:36px;letter-spacing:-1px}
  .lead{font-size:16px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .button{justify-content:center}
  .micro{font-size:11px}
  .demo{border-radius:12px}
  .demo-bar{padding:12px;font-size:9px}
  .window-dots{display:none}
  /* 演示：窄屏只展开第一条分支，其余收起。
     既保证 390px 内不被横向裁切，又正好演示"分支可收起"这一真实特性。 */
  .demo-canvas{min-height:0;padding:16px 14px 38px}
  .demo-node{font-size:11px;padding:6px 9px;white-space:nowrap;max-width:none}
  .demo-node.root{font-size:12px}
  .demo-node.lv3{font-size:10.5px;padding:5px 8px}
  .mmtree-branches{margin-left:24px;gap:9px}
  .mmtree-branches::before{left:-24px;width:24px}
  .mmtree-branch{padding-left:24px}
  .mmtree-branch::before{width:24px}
  .mmtree-leaves{margin-left:20px;gap:5px}
  .mmtree-leaves::before{left:-20px;width:20px}
  .mmleaf{padding-left:20px}
  .mmleaf::before{width:20px}
  .mmtree-branch:not(:first-child) .mmtree-leaves{display:none}
  .demo-tip{left:14px;bottom:10px}
  .demo-footer{font-size:9px;padding:10px}
  .benefits{gap:10px;padding:18px 0}
  .benefits span{font-size:10px;display:flex;flex-direction:column;align-items:center}
  .benefits b{font-size:11px;margin:4px 0 0}
  .section{padding-block:55px}
  .section-head{margin-bottom:28px}
  .features{grid-template-columns:1fr}
  .features article:nth-child(n){padding:25px 0;border-left:0;min-height:0}
  .features h3{font-size:19px}
  .workflow-grid,.editions,.essentials{grid-template-columns:1fr;gap:30px}
  .md-card{transform:none;padding:22px}
  .edition{padding:27px}
  .edition h3{font-size:25px}
  .edition li{font-size:14px}
  .closing{padding:55px 0}
  .closing h2{font-size:31px}
  .site-footer{gap:16px}
  .site-footer p{margin:0}
  .site-footer>div{flex-wrap:wrap;gap:16px}
  .faq summary{font-size:16px}
  .desktop{display:none}
}
@media(prefers-reduced-motion:reduce){
  :root{scroll-behavior:auto}
  .button{transition:none}
  .demo-node{transition:none}
}