/* 装到桌面 / 安装引导页 */
:root{--ins-blue:#567ace;--ins-blue-dark:#344f8c;--ins-ink:#26324a;--ins-paper:#f8f7f1;--ins-line:rgba(86,122,206,.16);--ins-muted:#7d8799;--ins-butter:#e5c874}
*{box-sizing:border-box}
body{margin:0;background:#eceef2;color:var(--ins-ink);font-family:"Segoe UI","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans SC",Roboto,sans-serif}

.install-app{width:min(1440px,calc(100% - 48px));height:calc(100vh - 48px);margin:24px auto;display:grid;grid-template-columns:178px minmax(0,1fr);overflow:hidden;border:1px solid rgba(255,255,255,.75);border-radius:28px;background:var(--ins-paper);box-shadow:0 24px 70px rgba(27,39,64,.15)}
.install-main{position:relative;min-width:0;overflow-y:auto;padding:44px clamp(22px,4.6vw,64px) 56px;background:radial-gradient(circle at 90% 2%,rgba(166,189,239,.24),transparent 26%),linear-gradient(rgba(255,255,255,.46),rgba(248,247,241,.92)),repeating-linear-gradient(0deg,transparent 0 31px,rgba(86,122,206,.035) 31px 32px)}

/* hero */
.install-hero{display:flex;align-items:flex-end;justify-content:space-between;gap:26px;padding-bottom:24px;border-bottom:1px solid var(--ins-line)}
.install-hero small{color:var(--ins-blue);font-size:10px;font-weight:700;letter-spacing:.26em}
.install-hero h1{margin:8px 0 9px;font:500 clamp(32px,4.4vw,56px)/1.06 Georgia,"Noto Serif SC","Noto Serif CJK SC","Source Han Serif SC","Songti SC",serif;letter-spacing:-.04em}
.install-hero h1 em{color:var(--ins-blue);font-style:italic}
.install-hero p{max-width:560px;margin:0;color:var(--ins-muted);font-size:12.5px;line-height:1.8}
.install-quick{display:flex;flex-direction:column;gap:9px;flex:none}
.quick-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:42px;padding:0 17px;border:1px solid rgba(86,122,206,.28);border-radius:999px;background:rgba(255,255,255,.9);color:var(--ins-blue-dark);font-size:12px;font-weight:600;text-decoration:none;cursor:pointer;transition:.2s ease;white-space:nowrap}
.quick-btn svg{width:16px;height:16px}
.quick-btn:hover{border-color:rgba(86,122,206,.5);background:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(86,122,206,.14)}
.quick-btn.primary{background:var(--ins-blue);border-color:var(--ins-blue);color:#fff;box-shadow:0 12px 26px rgba(86,122,206,.26)}
.quick-btn.primary:hover{background:var(--ins-blue-dark)}
.quick-btn.small{height:34px;padding:0 13px;font-size:11px;box-shadow:none}

/* cards */
.install-card{position:relative;margin-top:26px;padding:24px 26px 22px;border:1px solid var(--ins-line);border-radius:24px;background:rgba(255,255,255,.88);box-shadow:0 16px 38px rgba(38,50,74,.07)}
.ios-card{background:linear-gradient(180deg,rgba(238,243,255,.96),rgba(255,255,255,.92));border-color:rgba(86,122,206,.24)}
.card-head{display:flex;align-items:flex-start;gap:14px;padding-bottom:18px;border-bottom:1px dashed rgba(86,122,206,.2)}
.card-badge{flex:none;padding:5px 10px;border-radius:999px;background:var(--ins-blue);color:#fff;font-size:9.5px;font-weight:700;letter-spacing:.12em}
.card-badge.alt{background:rgba(86,122,206,.12);color:var(--ins-blue-dark)}
.card-head h2{margin:0 0 4px;font:600 22px/1.25 Georgia,"Noto Serif SC","Noto Serif CJK SC","Source Han Serif SC","Songti SC",serif}
.card-head p{margin:0;color:var(--ins-muted);font-size:12px;line-height:1.7}
.card-head p b{color:var(--ins-ink)}
.card-os{margin-left:auto;flex:none;color:rgba(86,122,206,.28);font:700 15px/1 Georgia,"Noto Serif SC","Noto Serif CJK SC","Source Han Serif SC","Songti SC",serif;letter-spacing:.16em}

/* steps */
.install-steps{display:grid;gap:14px;margin:18px 0 0;padding:0;list-style:none}
.install-steps li{position:relative;display:flex;align-items:center;gap:16px;padding:15px 16px;border:1px solid rgba(86,122,206,.14);border-radius:18px;background:rgba(255,255,255,.86)}
.step-num{flex:none;width:26px;height:26px;display:grid;place-items:center;border-radius:9px;background:var(--ins-blue);color:#fff;font:700 12px/1 "Segoe UI",sans-serif;box-shadow:0 6px 14px rgba(86,122,206,.24)}
.step-art{flex:none;width:54px;height:54px;display:grid;place-items:center;border-radius:15px;background:rgba(86,122,206,.09);color:var(--ins-blue-dark)}
.step-art svg{width:38px;height:38px}
.step-body{min-width:0}
.step-body h3{margin:0 0 4px;font-size:14px;font-weight:600;letter-spacing:.01em}
.step-body p{margin:0;color:var(--ins-muted);font-size:12px;line-height:1.75}
.inline-copy{padding:1px 6px;border:1px dashed rgba(86,122,206,.4);border-radius:7px;background:rgba(86,122,206,.07);color:var(--ins-blue-dark);font:600 11.5px/1.6 "Segoe UI",sans-serif;cursor:pointer}
.inline-copy:hover{background:rgba(86,122,206,.14)}
.step-hint{margin-top:6px!important;color:#9a7b32!important;font-size:11px!important}

.card-tip{margin:16px 0 0;padding:12px 15px;border-left:3px solid var(--ins-butter);border-radius:0 12px 12px 0;background:rgba(229,200,116,.14);color:#6f6647;font-size:11.5px;line-height:1.7}
.card-tip span{margin-right:5px;color:#b99a3c}

/* android */
.android-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:18px}
.mini-card{padding:15px 16px;border:1px solid rgba(66,86,116,.1);border-radius:16px;background:rgba(248,247,241,.72)}
.mini-card h3{margin:0 0 6px;font-size:12.5px;font-weight:600;color:var(--ins-blue-dark)}
.mini-card p{margin:0;color:var(--ins-muted);font-size:11.5px;line-height:1.75}

/* 安卓 APK 下载块 */
.apk-block{margin-top:16px;padding:18px 20px;border:1px solid rgba(86,122,206,.2);border-radius:18px;background:linear-gradient(135deg,rgba(86,122,206,.07),rgba(255,255,255,.92))}
.apk-copy h3{margin:0 0 5px;color:var(--ins-blue-dark);font-size:13.5px;font-weight:600}
.apk-copy p{margin:0;color:var(--ins-muted);font-size:11.5px;line-height:1.7}
.apk-download{display:flex;align-items:center;justify-content:center;gap:9px;height:52px;margin-top:14px;padding:0 20px;border-radius:15px;background:var(--ins-blue);color:#fff;font-size:13.5px;font-weight:600;text-decoration:none;box-shadow:0 14px 28px rgba(86,122,206,.26);transition:.2s ease}
.apk-download svg{width:19px;height:19px;flex:none}
.apk-download small{font-size:10.5px;font-weight:400;opacity:.72}
.apk-download:hover{background:var(--ins-blue-dark);transform:translateY(-1px)}
.apk-download.disabled{background:#c8cdd8;color:#fff;box-shadow:none;cursor:not-allowed;transform:none}
.apk-note{margin:10px 0 0;color:#b07a3c;font-size:11px;line-height:1.6}
.apk-tips{margin:12px 0 0;padding-left:18px;color:var(--ins-muted);font-size:11px;line-height:1.85}
.apk-tips li::marker{color:rgba(86,122,206,.55)}
/* iOS：整块只留说明，不显示 APK 按钮与安卓安装提示 */
.apk-download[hidden],.apk-tips[hidden]{display:none!important}
.apk-ios{margin:12px 0 0;padding:10px 12px;border-radius:12px;background:rgba(86,122,206,.08);color:var(--ins-blue-dark);font-size:11.5px;line-height:1.7}
.apk-ios[hidden]{display:none}
@media(max-width:820px){
  .apk-block{padding:16px 15px;border-radius:16px}
  .apk-download{height:54px;font-size:14px;flex-wrap:wrap;gap:4px 8px}
  .apk-download small{width:100%;text-align:center}
}

/* advanced */
.install-advanced{margin-top:26px;border:1px solid var(--ins-line);border-radius:24px;background:rgba(255,255,255,.86);box-shadow:0 14px 34px rgba(38,50,74,.06);overflow:hidden}
.install-advanced summary{display:flex;align-items:center;gap:14px;padding:20px 24px;cursor:pointer;list-style:none}
.install-advanced summary::-webkit-details-marker{display:none}
.adv-mark{flex:none;width:40px;height:40px;display:grid;place-items:center;border-radius:13px;background:rgba(86,122,206,.1);color:var(--ins-blue-dark)}
.adv-mark svg{width:22px;height:22px}
.adv-copy{display:grid;gap:2px;min-width:0}
.adv-copy b{font-size:14px;font-weight:600}
.adv-copy small{color:var(--ins-muted);font-size:11px}
.adv-toggle{margin-left:auto;flex:none;padding:5px 12px;border-radius:999px;border:1px solid rgba(86,122,206,.26);color:var(--ins-blue-dark);font-size:10.5px}
.install-advanced[open] .adv-toggle{background:var(--ins-blue);border-color:var(--ins-blue);color:#fff}
.adv-body{padding:0 24px 24px;border-top:1px dashed rgba(86,122,206,.18)}
.adv-lead{margin:16px 0 0;color:var(--ins-muted);font-size:12px;line-height:1.75}
.install-steps.compact li{padding:14px 15px}
.script-actions{display:flex;gap:8px;margin-top:10px;flex-wrap:wrap}
.adv-privacy{margin:16px 0 0;padding:11px 14px;border-radius:12px;background:rgba(86,122,206,.07);color:#4a5670;font-size:11.5px;line-height:1.7}
.adv-privacy span{margin-right:6px;color:var(--ins-blue)}
code{padding:1px 5px;border-radius:5px;background:rgba(38,50,74,.07);font:500 11px/1.6 ui-monospace,Consolas,monospace;color:#33405c}

/* footer */
.install-foot{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:26px;padding-top:18px;border-top:1px solid var(--ins-line)}
.install-foot p{margin:0;color:#939cab;font-size:11px;line-height:1.7}
.install-foot a{flex:none;color:var(--ins-blue-dark);font-size:11.5px;text-decoration:none}
.install-foot a:hover{text-decoration:underline}

/* toast */
.install-toast{position:fixed;left:50%;bottom:34px;z-index:90;transform:translate(-50%,10px);padding:10px 18px;border-radius:999px;background:rgba(34,48,74,.94);color:#fff;font-size:12px;letter-spacing:.02em;box-shadow:0 16px 34px rgba(20,30,50,.28);opacity:0;transition:.22s ease;pointer-events:none}
.install-toast.show{opacity:1;transform:translate(-50%,0)}

/* 脚本下载按钮 */
.script-download{display:flex;align-items:center;gap:10px;margin:12px 0 0;padding:15px 18px;min-height:56px;border-radius:16px;background:#567ACE;color:#fff;text-decoration:none;font-size:15px;font-weight:600;letter-spacing:.01em;box-shadow:0 12px 26px rgba(86,122,206,.28);transition:transform .16s ease,box-shadow .16s ease}
.script-download:hover{transform:translateY(-1px);box-shadow:0 16px 30px rgba(86,122,206,.34)}
.script-download:active{transform:translateY(0)}
.script-download svg{width:22px;height:22px;flex:none}
.script-download small{margin-left:auto;font-size:11.5px;font-weight:500;opacity:.78;letter-spacing:.02em}
.script-manual{margin-top:10px;border-top:1px dashed rgba(34,48,74,.14);padding-top:8px}
.script-manual summary{cursor:pointer;font-size:12.5px;color:#8A93A6;list-style:none}
.script-manual summary::-webkit-details-marker{display:none}
.script-manual summary::before{content:"▸ ";font-size:10px}
.script-manual[open] summary::before{content:"▾ "}
.script-manual p{margin:8px 0 0;font-size:12.5px;line-height:1.7;color:#4A5670}
@media(max-width:820px){
  .script-download{padding:17px 18px;min-height:60px;font-size:16px}
}

@media(max-width:1080px){
  .android-grid{grid-template-columns:1fr}
}
@media(max-width:820px){
  /* 窄屏：恢复普通文档流滚动（ui.css 的 app-shell 把 body 锁成 fixed+overflow:hidden，
     本页内容是长文，不解除就会只看到第一屏、其余被裁掉），同时不让任何内容撑出横向滚动 */
  html{height:auto;overflow-x:clip;overflow-y:auto}
  body{position:static;height:auto;max-width:100%;overflow:visible}
  .install-app{display:block;width:100%;height:auto;margin:0;border:0;border-radius:0;box-shadow:none;overflow:visible}
  .install-main{padding:22px 16px 46px;overflow:visible}
  .install-hero{flex-direction:column;align-items:stretch;gap:16px;padding-bottom:18px}
  .install-hero h1{font-size:34px}
  .install-quick{flex-direction:row;flex-wrap:wrap}
  .quick-btn{flex:1 1 140px;min-width:0}
  .step-body,.adv-copy,.apk-copy{min-width:0}
  .step-body h3,.step-body p,.card-tip,.adv-lead,.apk-copy p,.apk-tips li,.install-foot p{overflow-wrap:anywhere}
  .script-download{flex-wrap:wrap}
  .install-toast{max-width:calc(100% - 32px)}
  .install-card{padding:18px 16px;border-radius:20px}
  .card-os{display:none}
  .install-steps li{align-items:flex-start;gap:12px}
  .step-art{width:44px;height:44px}
  .step-art svg{width:30px;height:30px}
  .install-advanced summary{padding:16px}
  .adv-body{padding:0 16px 20px}
  .install-foot{flex-direction:column;align-items:flex-start}
}

/* 按钮版「一键复制」复用下载块的样式：按钮默认 shrink-to-fit，需要显式撑满 */
button.script-download{width:100%;border:0;font-family:inherit;font-size:15px;-webkit-appearance:none;appearance:none;text-align:left}
.step-hint a{color:inherit;text-decoration:underline;text-underline-offset:2px}