:root{--page:#eef3ed;--surface:#f9fbf7;--ink:#18382e;--muted:#51695e;--line:#d8e4d8;--accent:#1f694b;--soft:#e4f1e5;--warn:#76562a;--shadow:0 12px 36px rgba(27,74,51,.07)}
*{box-sizing:border-box}
html,body{margin:0;overflow-x:clip}
body{background:var(--page);color:var(--ink);font:16px/1.65 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif}
a{color:var(--accent);text-underline-offset:3px}
button,input,select{font:inherit}
button{cursor:pointer}
button:disabled{opacity:.5;cursor:wait}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid #73aa86;outline-offset:3px}
.skip{position:absolute;left:-9999px;top:8px;z-index:10;padding:10px;background:var(--surface)}
.skip:focus{left:8px}
.top{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:70px;padding:12px max(24px,calc((100vw - 1180px)/2));border-bottom:1px solid var(--line);background:rgba(249,251,247,.88);backdrop-filter:blur(12px)}
.brand{text-decoration:none;color:var(--ink);font-size:19px;font-weight:800;white-space:nowrap}
.brand small{font-size:12px;font-weight:500;color:var(--muted)}
.top nav{display:flex;gap:20px;flex-wrap:wrap}
.top nav a{display:inline-flex;align-items:center;min-height:44px;text-decoration:none;color:var(--muted);font-size:14px;font-weight:650;white-space:nowrap}
.top nav a:hover{color:var(--accent)}
main{max-width:1228px;margin:auto;padding:0 24px 72px}
.intro{padding:44px 0 30px;max-width:830px}
.eyebrow{margin:0 0 8px;color:var(--accent);font-size:12px;font-weight:800;letter-spacing:.12em}
h1,h2,h3,p{margin-top:0}
h1{font-size:40px;line-height:1.24;letter-spacing:-.035em;overflow-wrap:anywhere;margin-bottom:14px}
.lede{max-width:760px;font-size:18px;color:#37584a;margin-bottom:12px}
.intro-note{color:var(--muted);font-size:14px;margin:0}
.workspace{display:grid;grid-template-columns:minmax(0,1fr) 290px;align-items:start;gap:18px}
.form-panel,.side-note,.result,.bibliography{background:rgba(249,251,247,.94);border:1px solid rgba(63,112,77,.14);border-radius:22px;box-shadow:var(--shadow)}
.form-panel{padding:28px}
.section-heading{display:flex;justify-content:space-between;align-items:start;gap:16px;margin-bottom:24px}
.section-heading h2{font-size:23px;line-height:1.3;margin:0}
.count{font-size:12px;color:var(--muted);background:var(--soft);border-radius:100px;padding:6px 11px;white-space:nowrap}
.field-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px 18px}
.field{min-width:0}
.field label{display:block;margin-bottom:7px;font-size:14px;font-weight:700}
.field label span{color:#a74732}
.field input,.field select{display:block;width:100%;min-height:46px;padding:10px 13px;background:#fdfefd;border:1px solid #cadacc;border-radius:12px;color:var(--ink)}
.field input:hover,.field select:hover{border-color:#83aa8d}
.field input::placeholder{color:#809187}
.field input[hidden]{display:none}
#other-city{margin-top:10px}
.help{margin:7px 0 0;color:var(--muted);font-size:12px;line-height:1.5}
.form-error{color:#9b3d2c;font-size:14px;font-weight:650;margin:12px 0 0}
.form-error:empty{display:none}
.form-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:25px}
.button{display:inline-flex;align-items:center;justify-content:center;min-height:46px;border-radius:12px;padding:10px 18px;font-weight:750;white-space:nowrap;transition:background .15s,border-color .15s,transform .15s}
.button:not(:disabled):active{transform:translateY(1px)}
.button.primary{border:1px solid rgba(46,111,68,.28);background:rgba(199,233,207,.72);color:#15452f;box-shadow:0 8px 22px rgba(34,103,61,.09);backdrop-filter:blur(10px)}
.button.primary:hover:not(:disabled){background:rgba(180,223,190,.88)}
.button.secondary{border:1px solid rgba(68,112,77,.24);background:rgba(253,255,252,.75);color:var(--ink);backdrop-filter:blur(10px)}
.button.secondary:hover:not(:disabled){background:rgba(231,243,232,.95)}
.privacy{margin:17px 0 0;color:var(--muted);font-size:12px}
.privacy span{display:block}
.side-note{padding:24px;background:rgba(242,248,241,.82)}
.side-note h2{font-size:18px;line-height:1.35;margin-bottom:18px}
.side-note ol{padding:0;margin:0;list-style:none;counter-reset:reading}
.side-note li{position:relative;padding:0 0 18px 37px;margin:0 0 18px;border-bottom:1px solid var(--line);counter-increment:reading}
.side-note li:last-child{border:0;padding-bottom:0;margin-bottom:0}
.side-note li:before{content:counter(reading);position:absolute;left:0;top:0;width:25px;height:25px;border-radius:8px;background:#d8eadb;color:var(--accent);display:grid;place-items:center;font-size:12px;font-weight:800}
.side-note strong,.side-note span{display:block}
.side-note strong{font-size:14px;margin-bottom:2px}
.side-note span{font-size:13px;color:var(--muted)}
.result-toolbar{display:flex;justify-content:flex-end;min-height:62px;align-items:end}
.result-toolbar button[hidden]{display:none}
.result{padding:30px;scroll-margin-top:20px}
.empty{text-align:center;max-width:470px;margin:42px auto;color:var(--muted)}
.empty-mark{font-size:33px;color:#71947a;margin-bottom:4px}
.empty h2{font-size:21px;color:var(--ink);margin-bottom:8px}
.empty p:last-child{font-size:14px}
.result-head h2{font-size:28px;line-height:1.3;margin-bottom:8px}
.result-lede{max-width:760px;color:#37584a;margin:0 0 18px}
.evidence-note{padding:13px 16px;background:#f3f0e7;border:1px solid #e7dcc6;border-radius:10px;color:var(--warn);font-size:13px}
.recommendations{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px;margin:23px 0}
.recommendation{display:flex;flex-direction:column;min-width:0;padding:20px;border:1px solid var(--line);border-radius:18px;background:#fcfdfa}
.card-top{display:flex;flex-wrap:wrap;gap:6px;align-items:center;justify-content:space-between;margin-bottom:13px}
.role,.status{font-size:11px;font-weight:750;line-height:1.4;border-radius:999px;padding:4px 8px}
.role{background:#e9eee7;color:#3c5c4a}
.status.local{background:#def1e3;color:#226142}
.status.unknown{background:#f2eddf;color:#805e2d}
.recommendation h3{font-size:19px;line-height:1.35;margin-bottom:13px;overflow-wrap:anywhere}
.candidate-list{list-style:none;margin:0;padding:0}
.candidate-list li{padding:10px 0;border-top:1px solid var(--line);font-size:14px}
.candidate-list a{font-weight:750}
.candidate-list small{display:block;color:var(--muted);font-size:12px}
.culture-tag{display:block;color:#47634f;font-size:12px}
.design-handoff{margin:22px 0;padding:20px;border:1px solid rgba(49,124,90,.24);border-radius:18px;background:rgba(226,242,228,.78);backdrop-filter:blur(12px)}
.design-handoff h3{font-size:18px;margin-bottom:5px}
.design-handoff p{font-size:13px;color:var(--muted);margin-bottom:12px}
.design-handoff .handoff-message{color:#9b3d2c;margin:8px 0 0}
.detail-line{font-size:13px;color:#405a4e;margin:0 0 11px;line-height:1.6}
.detail-line strong{color:var(--ink)}
.plant-link{display:inline-block;margin-top:auto;padding-top:8px;font-size:13px;font-weight:750}
.not-selected,.next-checks,.site-assessment,.spacing-workbench,.rule-summary{border-top:1px solid var(--line);padding-top:19px;margin-top:20px}
.not-selected h3,.next-checks h3,.site-assessment h3,.spacing-workbench h3,.rule-summary h3{font-size:17px;margin-bottom:9px}
.rule-summary p{font-size:13px;color:#405a4e;margin:6px 0}
.not-selected ul{margin:0;padding-left:20px;color:var(--muted);font-size:13px}
.not-selected li{margin:5px 0}
.assessment-list{margin:0;padding-left:20px;color:#405a4e;font-size:14px}
.assessment-list li{margin:7px 0}
.next-checks p{font-size:13px;color:var(--muted)}
.method-steps{padding-left:22px;color:#405a4e;font-size:14px}
.method-steps li{margin:9px 0}
.spacing-workbench .browse-help{max-width:850px}
.spacing-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin:14px 0}
.spacing-result{margin-top:14px;font-size:14px;color:#405a4e}
.spacing-result:empty{display:none}
.spacing-result p{margin:6px 0}
.spacing-result .warn{color:#9b3d2c;font-weight:700}
.spacing-result .fit{color:#246542}
.browse-pool{border-top:1px solid var(--line);padding-top:20px;margin-top:20px}
.browse-pool h3{font-size:17px;margin-bottom:7px}
.browse-help,.browse-count{font-size:13px;color:var(--muted)}
.plant-search{width:min(100%,360px);min-height:44px;padding:9px 12px;border:1px solid #cadacc;border-radius:11px;background:#fff}
.plant-directory{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0}
.directory-record{display:inline-flex;align-items:center;gap:6px;flex-wrap:wrap;max-width:100%;min-height:36px;padding:5px 10px;border:1px solid var(--line);border-radius:9px;background:#fcfdfa;overflow-wrap:anywhere}
.directory-item{font-size:13px;text-decoration:none}
.directory-held{color:var(--warn);font-size:11px}
.show-more{margin-top:8px}
.show-more[hidden],#reference-field[hidden]{display:none}
.sources{margin-bottom:0}
.bibliography{margin-top:26px;padding:30px}
.bibliography h2{font-size:24px;line-height:1.35;margin-bottom:8px}
.source-intro{max-width:830px;color:var(--muted);font-size:14px;margin-bottom:22px}
.book-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.book-grid article{padding:18px 20px;border:1px solid var(--line);border-radius:16px;background:#fcfdfa}
.book-grid span{display:block;color:var(--accent);font-size:11px;font-weight:800;margin-bottom:7px}
.book-grid h3{font-size:17px;line-height:1.4;margin-bottom:8px}
.book-grid p,.source-more{color:var(--muted);font-size:13px;margin:0}
.source-more{margin-top:18px}
footer{padding:26px 24px;text-align:center;border-top:1px solid var(--line);color:var(--muted);font-size:13px}
footer p{margin-bottom:5px}
@media(max-width:950px){.workspace{grid-template-columns:minmax(0,1fr)}.side-note{display:none}.recommendations{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:620px){.top{padding:12px 16px;display:block}.top nav{gap:13px}.brand small{display:none}main{padding:0 16px 50px}.intro{padding:32px 0 22px}h1{font-size:32px}.lede{font-size:16px}.form-panel,.result,.bibliography{padding:20px;border-radius:18px}.section-heading{display:block}.count{display:inline-block;margin-top:10px}.field-grid,.spacing-grid{grid-template-columns:minmax(0,1fr);gap:18px}.form-actions .button{width:100%}.recommendations,.book-grid{grid-template-columns:minmax(0,1fr)}.result-toolbar{min-height:57px}}
@media(prefers-reduced-motion:reduce){.button{transition:none}}
@media print{body{background:#fdfefd}main{max-width:none;padding:0}.top,.intro,.workspace,.result-toolbar,footer,.bibliography,.plant-search,.show-more,.design-handoff{display:none!important}.result{border:0;box-shadow:none;padding:0}.recommendations{grid-template-columns:repeat(2,minmax(0,1fr))}.recommendation{break-inside:avoid}}