.hero h1,.ai-intro h2{white-space:pre-line}
:root{--ink:#183d39;--muted:#607771;--green:#246457;--lime:#e6edb2;--paper:#fbfaf6;--line:#dce4dd;--orange:#ed845c;--white:#fff;--serif:Georgia,'Times New Roman',serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:30px}body{margin:0;background:var(--paper);color:var(--ink);font-family:Arial,'Microsoft YaHei',sans-serif;font-size:15px;line-height:1.55}button,input,textarea,select{font:inherit;color:inherit}button,a,input,select,textarea{touch-action:manipulation}button{cursor:pointer}button:disabled{opacity:.5;cursor:wait}a{color:inherit;text-decoration:none}a:hover{text-decoration:underline}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid var(--orange);outline-offset:3px}.shell{width:min(1200px,calc(100% - 80px));margin:auto}.topbar{height:94px;border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 40px;gap:25px}.brand{font-size:22px;font-weight:800;letter-spacing:-1px;white-space:nowrap}.brand span{font-size:10px;letter-spacing:1.5px;font-weight:500;margin-left:10px;color:var(--muted)}.topbar nav{display:flex;gap:34px;font-size:13px}.language-switch{display:flex;align-items:center;gap:10px}.language-switch select{border:0;background:transparent;font-size:13px;max-width:125px}.hero{display:grid;grid-template-columns:1.25fr 1fr;gap:30px;min-height:540px;align-items:center;padding-top:48px;padding-bottom:52px}.eyebrow{font-size:10px;letter-spacing:1.6px;font-weight:700;display:flex;align-items:center;gap:9px}.dot{width:6px;height:6px;border-radius:50%;background:var(--orange)}h1{font-family:var(--serif);font-weight:400;font-size:clamp(44px,4.9vw,68px);letter-spacing:-2px;line-height:1.07;margin:24px 0}.lead{color:var(--muted);font-size:16px;max-width:510px;line-height:1.8}.searchbox{display:flex;align-items:center;gap:12px;border:1px solid #bdcec3;background:white;padding:7px 7px 7px 19px;border-radius:7px;margin-top:27px;box-shadow:0 5px 12px #183d3906}.searchbox>span{font-size:28px}.searchbox input{width:0;flex:1;border:0;outline:0;font-size:13px;background:transparent;padding:12px 0}.searchbox button,.button{background:var(--green);color:white;border:0;border-radius:4px;padding:13px 18px;font-size:12px;font-weight:600;display:inline-block;text-align:center}.quick{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;align-items:center;font-size:10px}.quick>span{color:var(--muted);margin-right:3px}.quick button{font-size:10px;background:transparent;border:1px solid var(--line);border-radius:20px;padding:5px 11px}.hero-art{height:395px;position:relative;overflow:hidden;background:#edf0e6;border-radius:120px 120px 12px 12px;margin-left:25px}.art-grid{position:absolute;inset:0;background:linear-gradient(#c1cdbb33 1px,transparent 1px),linear-gradient(90deg,#c1cdbb33 1px,transparent 1px);background-size:27px 27px}.art-screen{width:61%;height:170px;position:absolute;left:20%;top:55px;border:6px solid #fffef4;background:#e5edb4;box-shadow:4px 9px 15px #1b382914;overflow:hidden;transform:rotate(-7deg)}.screen-sun{width:52px;height:52px;border-radius:50%;background:#ed9866;position:absolute;right:23px;top:18px}.screen-hill{position:absolute;background:#6d9a7a;width:220px;height:160px;border-radius:50%;bottom:-92px;left:-30px;transform:rotate(-20deg)}.screen-hill.two{background:#37685b;left:70px;bottom:-110px;transform:rotate(12deg)}.screen-orbit{height:200px;width:200px;position:absolute;border:1px solid #fafbec;left:20px;top:17px;border-radius:50%}.projector{position:absolute;width:210px;height:108px;left:15%;top:230px;border-radius:14px 20px 22px 12px;background:linear-gradient(135deg,#fbfcf3,#d5ddd0);box-shadow:12px 20px 20px #243b3b22;transform:rotate(-7deg);border-bottom:8px solid #bdcabc}.projector-label{position:absolute;left:17px;top:16px;font-size:8px;letter-spacing:1px;color:#65756a}.lens{position:absolute;right:17px;top:18px;width:69px;height:69px;border:7px solid #334c42;border-radius:50%;background:radial-gradient(circle at 40% 30%,#d5eff0,#608b8e 25%,#263e46 50%,#101f27 75%);box-shadow:0 0 0 3px #9eada0}.projector-slits{position:absolute;left:17px;bottom:25px;width:76px;height:22px;background:repeating-linear-gradient(90deg,#7e9183 0 2px,transparent 2px 5px);border-radius:3px}.art-tag{position:absolute;right:17px;bottom:69px;transform:rotate(9deg);background:var(--orange);padding:12px 17px;display:flex;gap:9px;font-size:8px;line-height:1.3;box-shadow:0 5px 8px #183d3911}.art-tag>span{font-size:24px}.art-tag strong{font-size:29px;font-family:var(--serif);font-weight:400}.art-caption{position:absolute;bottom:18px;left:23px;font-size:8px;letter-spacing:1px;color:#748675}.trust-strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#f1f3e9}.trust-strip>.shell{display:flex;justify-content:space-between;gap:15px;padding:18px 0;color:#546a5e;font-size:11px}.trust-strip span:before{content:'✓';margin-right:10px;color:#7d9672}.section{padding-top:65px;padding-bottom:65px}.section-heading{display:flex;align-items:end;justify-content:space-between;gap:30px;margin-bottom:30px}h2{font-family:var(--serif);font-weight:400;letter-spacing:-1px;font-size:36px;line-height:1.2;margin:11px 0 0}.section-heading>p{color:var(--muted);font-size:12px;max-width:260px;margin:0}.topic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.topic{border:1px solid var(--line);background:white;border-radius:7px;padding:24px;text-align:left;position:relative;display:flex;flex-direction:column;gap:11px;min-height:180px;transition:transform .2s,box-shadow .2s}.topic:hover{transform:translateY(-3px);box-shadow:0 8px 20px #183d3909}.topic-icon{font-size:26px;line-height:1;width:41px;height:41px;background:#f0f4eb;border-radius:8px;text-align:center;padding-top:6px;color:var(--green)}.topic strong{font-size:14px}.topic>span:last-of-type{font-size:11px;color:var(--muted);max-width:150px}.topic b{position:absolute;right:20px;top:24px;font-weight:400;color:#7e9286}.results-heading{display:flex;align-items:center;justify-content:space-between;margin-top:33px}h3{font-size:15px;font-weight:600}.text-button{border:0;background:transparent;color:var(--green);font-size:12px;padding:6px 0;text-decoration:underline;text-underline-offset:4px}.empty{border:1px dashed #cad6cc;border-radius:6px;padding:25px;color:var(--muted);font-size:13px;background:#ffffff55}.guide-list{display:grid;gap:12px}.guide-card{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding:16px 6px;gap:20px}.guide-card h3{margin:0 0 5px}.guide-card p{margin:0;font-size:12px;color:var(--muted)}.library-wrap{background:#eef2e9;border-top:1px solid #e4eadf;border-bottom:1px solid #e4eadf}.library-controls{display:grid;grid-template-columns:1fr 1fr;gap:20px;max-width:740px;margin-top:25px}label>span{display:block;font-size:11px;font-weight:600;margin-bottom:7px}input,select,textarea{border:1px solid #cbd7cc;border-radius:4px;background:white;padding:11px 13px;max-width:100%}label input,label select{width:100%}.resource-tabs{display:flex;gap:20px;align-items:center;border-bottom:1px solid #cfdbc9;margin-top:28px;margin-bottom:18px}.resource-tabs button{border:0;border-bottom:2px solid transparent;background:transparent;padding:12px 0;color:var(--muted);font-size:13px}.resource-tabs button.active{border-color:var(--green);color:var(--ink);font-weight:600}.resource-tabs>span{margin-left:auto;font-size:11px;color:var(--muted)}.resource-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.resource-grid>.empty{grid-column:1/-1}.resource-link{display:flex;flex-direction:column;gap:4px;padding:17px;background:#fafdF6;border:1px solid #becfbe;border-radius:4px;font-size:13px}.resource-link small{font-size:10px;color:var(--muted)}.ai-section{display:grid;grid-template-columns:1fr 1.25fr;gap:85px;align-items:start}.ai-intro h2{font-size:48px}.ai-intro p{font-size:14px;line-height:1.8;color:var(--muted);margin-top:23px}.ai-scope{font-size:11px;color:var(--muted);border-left:2px solid var(--orange);padding-left:15px;margin-top:24px;max-width:300px}.chat-card{background:white;border:1px solid var(--line);border-radius:9px;padding:23px;box-shadow:0 10px 30px #183d3907}.chat-header{display:flex;align-items:center;gap:10px;font-size:12px;border-bottom:1px solid var(--line);padding-bottom:17px}.spark{font-size:23px;color:var(--green)}.pill{margin-left:auto;background:#f0f3e7;color:#607452;padding:4px 9px;border-radius:20px;font-size:9px}.chat-welcome{color:var(--muted);font-size:13px;padding:10px 0 25px;max-width:320px}#chat-log{max-height:380px;overflow:auto}.message{white-space:pre-wrap;padding:12px;border-radius:6px;background:#f4f6ef;font-size:13px;margin:10px 0}.message.user{background:#e5eee8;margin-left:24px}.message a{display:block;font-size:11px;color:var(--green);margin-top:6px;text-decoration:underline}#ask-form textarea{width:100%;resize:vertical;min-height:85px;font-size:13px}.chat-actions{display:flex;align-items:center;justify-content:space-between;gap:15px;margin:10px 0 12px}.muted{color:var(--muted);font-size:11px}.bottom-note{border-top:1px solid var(--line);display:flex;gap:25px;align-items:center;padding-top:30px;padding-bottom:35px}.bottom-note>span{font-size:45px;color:var(--green)}.bottom-note h3{margin:0 0 7px}.bottom-note p{font-size:12px;color:var(--muted);max-width:650px;margin:0}footer{display:flex;align-items:center;justify-content:space-between;gap:20px;border-top:1px solid var(--line);padding:28px 0;font-size:10px;color:var(--muted)}footer .brand{font-size:17px}footer .brand span{display:none}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0)}#toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:var(--ink);color:white;border-radius:6px;padding:13px 20px;max-width:90%;font-size:13px;z-index:20}.article-page{max-width:760px;margin:60px auto;padding:0 24px}.article-page h1{font-size:45px}.article-page article{font-size:17px;line-height:1.9;margin:35px 0}.notice{font-size:12px;background:#eaf0e3;padding:12px;border-radius:4px}.article-page nav{margin:30px 0}.article-page h2{font-size:25px}
.admin-body{background:#f3f5f0}.admin-layout{display:grid;grid-template-columns:210px 1fr;min-height:calc(100vh - 94px)}.sidebar{background:#e8eee4;padding:30px 18px;border-right:1px solid var(--line)}.sidebar button{display:block;width:100%;border:0;background:transparent;text-align:left;padding:13px 15px;border-radius:5px;margin-bottom:5px;font-size:13px}.sidebar button.active{background:var(--green);color:white}.admin-main{padding:35px;max-width:1250px;width:100%}.admin-main h1{font-size:34px;margin:0 0 12px}.panel{padding:25px;border:1px solid var(--line);border-radius:8px;background:white;margin:18px 0}.panel h2{font-family:inherit;font-size:19px;margin-top:0;letter-spacing:0}.admin-form{display:grid;grid-template-columns:1fr 1fr;gap:15px}.admin-form label{display:block;font-size:12px}.admin-form input,.admin-form textarea,.admin-form select{display:block;width:100%;margin-top:5px}.admin-form .full{grid-column:1/-1}.admin-form textarea{min-height:100px}.admin-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-top:15px}.secondary{background:#edf1e8;color:var(--ink);border:1px solid var(--line);padding:10px 15px;border-radius:4px;font-size:12px}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.stat{padding:20px;background:white;border:1px solid var(--line);border-radius:7px}.stat strong{font-family:var(--serif);font-size:33px;display:block}.stat span{font-size:11px;color:var(--muted)}.record{border-bottom:1px solid var(--line);padding:16px 0;overflow-wrap:anywhere}.record:last-child{border:0}.record h3{margin:0 0 6px}.record p{font-size:13px;white-space:pre-wrap;margin:6px 0;color:var(--muted)}.record .admin-actions{margin-top:8px}.record .pill{margin-left:0}.login{max-width:520px;margin:70px auto}.login input{width:100%}.admin-message{min-height:24px;font-size:13px;color:var(--green);white-space:pre-wrap}.danger{color:#a13d27}details{margin:10px 0}summary{cursor:pointer;font-size:12px}pre{white-space:pre-wrap;font-size:12px;overflow-wrap:anywhere}.admin-help{font-size:12px;color:var(--muted);line-height:1.8}.admin-tab[hidden],#workspace[hidden],#login[hidden]{display:none}
@media(max-width:1000px){.hero{grid-template-columns:1.2fr 1fr}.hero-art{margin-left:0;height:350px}.art-screen{height:140px}.projector{top:200px;left:10%;width:185px}.art-tag{right:10px;bottom:57px}.ai-section{gap:35px}.resource-grid{grid-template-columns:repeat(3,1fr)}.topic{padding:18px}.brand span{display:none}.topbar nav{gap:20px}.admin-main{padding:22px}}@media(max-width:700px){.shell{width:calc(100% - 36px)}.topbar{height:auto;min-height:75px;padding:17px 18px;flex-wrap:wrap;gap:12px}.topbar .brand{font-size:20px}.topbar nav{order:3;width:100%;justify-content:center;font-size:12px;gap:35px;border-top:1px solid var(--line);padding-top:10px}.hero{grid-template-columns:1fr;padding-top:35px;gap:28px}.hero h1{font-size:48px}.hero-art{height:280px;border-radius:90px 90px 10px 10px;max-width:400px;width:100%;margin:auto}.art-screen{top:28px;width:54%;left:26%;height:130px}.projector{top:157px;left:18%;height:90px}.lens{width:58px;height:58px;top:12px}.projector-slits{bottom:17px}.art-tag{bottom:44px;right:25px}.art-caption{bottom:10px;font-size:7px}.eyebrow{font-size:9px}.searchbox{gap:8px}.searchbox button{padding:13px 10px}.trust-strip>.shell{display:grid;grid-template-columns:1fr 1fr;font-size:10px;gap:12px}.section{padding-top:40px;padding-bottom:40px}.section-heading{display:block}.section-heading>p{margin-top:15px}h2{font-size:31px}.topic-grid{grid-template-columns:1fr 1fr;gap:10px}.topic{min-height:180px}.topic strong{font-size:13px}.topic>span:last-of-type{font-size:11px}.library-controls{grid-template-columns:1fr;gap:14px}.resource-grid{grid-template-columns:1fr 1fr}.ai-section{grid-template-columns:1fr;gap:25px}.ai-intro h2{font-size:39px}.ai-intro h2 br{display:none}.ai-scope{max-width:none}.chat-card{padding:18px}.bottom-note{gap:17px}footer{flex-wrap:wrap}footer>span{width:100%;order:3}.admin-layout{display:block}.sidebar{display:flex;overflow:auto;padding:10px;border-right:0;border-bottom:1px solid var(--line)}.sidebar button{white-space:nowrap;width:auto;margin:0;font-size:12px}.admin-main{padding:18px}.admin-form{grid-template-columns:1fr}.admin-form .full{grid-column:auto}.stats{grid-template-columns:1fr 1fr}.panel{padding:17px}.login{margin:30px 18px}}
