@charset "utf-8";
:root{--ink:#07131d;--ink-2:#0d202b;--panel:#102a36;--paper:#eef9f8;--paper-2:#dff2f0;--cyan:#44e3d2;--cyan-2:#8df7eb;--line:rgba(141,247,235,.24);--muted:#a9c2c5;--warning:#ffd68a;--max:1180px;color-scheme:dark}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;min-width:0;background:radial-gradient(circle at 90% 5%,rgba(68,227,210,.12),transparent 28rem),var(--ink);color:var(--paper);font-family:ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;line-height:1.75;overflow-x:hidden}
img,svg{max-width:100%;height:auto}
a{color:var(--cyan-2);text-decoration-thickness:.08em;text-underline-offset:.22em}
a:hover{color:#fff}
button,input{font:inherit}
.skip-link{position:fixed;left:1rem;top:-5rem;z-index:100;background:var(--cyan);color:var(--ink);padding:.6rem 1rem;border-radius:.5rem}
.skip-link:focus{top:1rem}
.site-header{position:sticky;top:0;z-index:20;background:rgba(7,19,29,.94);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.header-inner{max-width:var(--max);margin:auto;padding:.8rem 1.25rem;display:grid;grid-template-columns:auto minmax(0,1fr) auto;align-items:center;gap:1rem}
.brand{color:#fff;text-decoration:none;font-weight:820;letter-spacing:.02em;white-space:nowrap}
.brand-mark{color:var(--cyan);margin-right:.42rem}
.nav-toggle{display:none;min-height:2.75rem;border:1px solid var(--line);border-radius:.7rem;padding:.42rem .75rem;background:var(--panel);color:#fff}
.section-rail{display:flex;gap:.4rem;overflow-x:auto;scrollbar-width:thin;padding:.2rem;min-width:0}
.section-rail a{white-space:nowrap;text-decoration:none;color:var(--muted);padding:.36rem .65rem;border-radius:999px;border:1px solid transparent;font-size:.88rem}
.section-rail a:hover,.section-rail a[aria-current="page"]{color:#fff;border-color:var(--line);background:rgba(68,227,210,.08)}
.header-note{font-size:.75rem;color:var(--muted);white-space:nowrap}
.hero{max-width:var(--max);margin:auto;padding:clamp(3rem,7vw,6.5rem) 1.25rem 2.5rem;display:grid;grid-template-columns:minmax(0,1.08fr) minmax(280px,.92fr);gap:clamp(2rem,5vw,5rem);align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:.5rem;color:var(--cyan);font-size:.78rem;font-weight:780;letter-spacing:.12em;text-transform:uppercase}
.eyebrow::before{content:"";width:2.3rem;height:1px;background:var(--cyan)}
h1{font-size:clamp(2.45rem,6.5vw,5.9rem);line-height:.98;letter-spacing:-.055em;margin:.75rem 0 1.25rem;max-width:11ch;overflow-wrap:anywhere}
.hero-lead{font-size:clamp(1.03rem,2vw,1.3rem);color:var(--muted);max-width:44rem}
.hero-actions{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:1.5rem}
.button{display:inline-flex;align-items:center;justify-content:center;min-height:2.8rem;padding:.6rem 1rem;border-radius:.75rem;background:var(--cyan);color:var(--ink);font-weight:780;text-decoration:none;border:1px solid var(--cyan);cursor:pointer}
.button.secondary{background:transparent;color:var(--cyan-2);border-color:var(--line)}
.editor-note{position:relative;background:linear-gradient(145deg,rgba(16,42,54,.96),rgba(10,29,39,.96));border:1px solid var(--line);border-radius:1.4rem;padding:1.1rem;box-shadow:0 2rem 5rem rgba(0,0,0,.28)}
.editor-note::before{content:"EDITOR NOTE 070";position:absolute;top:-.85rem;left:1.2rem;background:var(--cyan);color:var(--ink);font-size:.66rem;font-weight:900;letter-spacing:.13em;padding:.25rem .65rem;border-radius:999px}
.editor-note img{display:block;width:100%;border-radius:.85rem;background:#0a202b}
.editor-note p{margin:.9rem .25rem .2rem;color:var(--muted);font-size:.9rem}
.page-shell{max-width:var(--max);margin:auto;padding:0 1.25rem 4rem;display:grid;grid-template-columns:minmax(180px,.26fr) minmax(0,.74fr);gap:clamp(1.4rem,4vw,4rem);align-items:start}
.side-index{position:sticky;top:5.6rem;border-left:1px solid var(--line);padding-left:1rem}
.side-index strong{display:block;color:#fff;font-size:.85rem;margin-bottom:.5rem}
.side-index a{display:block;padding:.25rem 0;color:var(--muted);font-size:.88rem}
.content{min-width:0}
.content-block{background:rgba(16,42,54,.72);border:1px solid var(--line);border-radius:1.25rem;padding:clamp(1.2rem,3vw,2.2rem);margin-bottom:1.1rem}
.content-block h2{font-size:clamp(1.45rem,3vw,2.25rem);line-height:1.18;margin:0 0 .8rem;letter-spacing:-.025em}
.content-block h3{font-size:1.08rem;margin:1.35rem 0 .35rem;color:#fff}
.content-block p{color:#c8dada;margin:.6rem 0}
.content-block ul,.content-block ol{padding-left:1.25rem;color:#d7e6e6}
.content-block li+li{margin-top:.45rem}
.soft-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.85rem;margin-top:1rem}
.soft-panel{display:block;background:rgba(223,242,240,.05);border:1px solid var(--line);border-radius:1rem;padding:1rem;text-decoration:none;color:inherit;min-width:0}
.soft-panel:hover{background:rgba(68,227,210,.09)}
.soft-panel .label{color:var(--cyan);font-size:.72rem;font-weight:800;letter-spacing:.09em;text-transform:uppercase}
.soft-panel h3{margin:.35rem 0;font-size:1.04rem}
.soft-panel p{font-size:.9rem;margin:0;color:var(--muted)}
.callout{border-left:3px solid var(--cyan);padding:.8rem 1rem;background:rgba(68,227,210,.06);color:#d8eeee;border-radius:0 .75rem .75rem 0}
.warning{border-left-color:var(--warning);background:rgba(255,214,138,.06)}
.breadcrumb{max-width:var(--max);margin:auto;padding:1rem 1.25rem 0;color:var(--muted);font-size:.82rem}
.breadcrumb a{color:var(--muted)}
.figure-panel{margin:1.25rem 0 0;border:1px solid var(--line);border-radius:1rem;padding:1rem;background:#0b202b}
.figure-panel img{display:block;margin:auto;border-radius:.6rem}
.figure-panel figcaption{margin-top:.7rem;color:var(--muted);font-size:.82rem}
.checklist{display:grid;gap:.65rem;margin:1rem 0}
.check-row{display:flex;gap:.7rem;align-items:flex-start;background:rgba(223,242,240,.05);border:1px solid var(--line);padding:.75rem;border-radius:.75rem}
.check-row input{margin-top:.35rem;accent-color:var(--cyan)}
.meter{margin-top:1rem;color:var(--cyan-2);font-weight:750}
.worksheet{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:.8rem}
.worksheet label{display:grid;gap:.3rem;color:var(--muted);font-size:.86rem}
.worksheet input{width:100%;background:#071923;color:#fff;border:1px solid var(--line);border-radius:.65rem;padding:.65rem}
pre.template{white-space:pre-wrap;overflow-wrap:anywhere;background:#06151e;border:1px solid var(--line);padding:1rem;border-radius:.8rem;color:#d9eeee}
.faq details{border-top:1px solid var(--line);padding:.85rem 0}
.faq summary{cursor:pointer;color:#fff;font-weight:700}
.site-footer{border-top:1px solid var(--line);background:#06121a}
.footer-inner{max-width:var(--max);margin:auto;padding:2.4rem 1.25rem;display:grid;grid-template-columns:1.25fr .9fr .9fr;gap:2rem}
.footer-inner h2{font-size:.86rem;letter-spacing:.08em;text-transform:uppercase;color:var(--cyan);margin:0 0 .7rem}
.footer-inner p,.footer-inner a{font-size:.86rem;color:var(--muted)}
.footer-links{display:grid;gap:.35rem}
.status-chip{display:inline-flex;border:1px solid var(--line);border-radius:999px;padding:.2rem .55rem;color:var(--warning);font-size:.72rem}
[hidden]{display:none!important}
@media (max-width:860px){.header-inner{grid-template-columns:minmax(0,1fr) auto}.header-note{display:none}.hero{grid-template-columns:1fr;padding-top:3.5rem}.hero h1{max-width:none}.page-shell{grid-template-columns:1fr}.side-index{position:static;display:flex;gap:.8rem;overflow-x:auto;border-left:0;border-bottom:1px solid var(--line);padding:0 0 .75rem}.side-index strong{display:none}.side-index a{white-space:nowrap}.footer-inner{grid-template-columns:1fr 1fr}}
@media (max-width:720px){.header-inner{grid-template-columns:minmax(0,1fr) auto}.nav-toggle{display:inline-flex}.section-rail{grid-column:1/-1;flex-wrap:wrap}.js .section-rail{display:none}.js .section-rail.is-open{display:flex}.hero{padding-left:1rem;padding-right:1rem}.page-shell,.breadcrumb{padding-left:1rem;padding-right:1rem}.soft-grid,.worksheet{grid-template-columns:1fr}.footer-inner{grid-template-columns:1fr}.header-inner{padding-left:1rem;padding-right:1rem}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*::before,*::after{animation:none!important;transition:none!important}}