:root{--bg:#F6F4EE;--card:#fff;--soft:#ECEFE8;--sand:#F2E7D7;--green:#21463B;--green2:#17352D;--green3:#3C685A;--orange:#C56B3D;--gold:#C6A15B;--title:#1F2D28;--text:#3E4A45;--muted:#66716C;--hint:#78817D;--border:#D9DED8;--footer:#183129;--footerText:#F4F3ED;--shadow:0 8px 24px rgba(31,45,40,.06)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.8 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei",sans-serif;overflow-x:hidden}a{color:var(--green);text-decoration-thickness:1px;text-underline-offset:3px}a:hover{color:var(--orange)}img{display:block;max-width:100%;height:auto;object-fit:contain}.site-header{background:#fff;border-bottom:1px solid var(--border);position:relative;z-index:10}.header-inner{max-width:1180px;margin:auto;padding:0 32px;height:70px;display:flex;align-items:center;gap:28px}.brand{display:flex;align-items:center;gap:10px;min-width:0;text-decoration:none}.brand-logo{height:32px;width:auto;max-width:165px}.brand-icon{display:none;height:28px;width:auto;max-width:29px}.brand span{display:flex;flex-direction:column;line-height:1.15}.brand b{color:var(--title);font-size:17px;white-space:nowrap}.brand small{font-size:11px;color:var(--muted);letter-spacing:.04em}.desktop-nav{display:flex;gap:22px;margin-left:auto}.desktop-nav a{text-decoration:none;font-size:15px;color:var(--text);padding:22px 0 18px;border-bottom:3px solid transparent}.desktop-nav a.active{color:var(--green);border-bottom-color:var(--gold)}.header-actions{display:flex;align-items:center;gap:10px}.header-actions button,.header-actions a,.mobile-actions button,.mobile-actions a,.directory-close,.button-link{min-height:44px;padding:9px 14px;border-radius:9px;border:1px solid var(--green);background:#fff;color:var(--green);font-size:15px;text-decoration:none;cursor:pointer}.header-actions button:hover,.directory-close:hover,.button-link.primary{background:var(--green);color:#fff}.mobile-actions{display:none;margin-left:auto;gap:8px}.site-directory{border-top:1px solid var(--border);background:var(--soft)}.directory-inner{max-width:1180px;margin:auto;padding:28px 32px}.desktop-directory{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:26px}.directory-inner section{min-width:0}.directory-inner h2{font-size:17px;margin:0 0 10px;color:var(--title)}.directory-inner a{display:block;text-decoration:none;padding:6px 0;color:var(--text)}.directory-inner a small{display:block;color:var(--muted);font-size:13px}.service-links{display:grid;grid-template-columns:1fr 1fr;gap:0 12px}.mobile-directory{display:none}.directory-close-wrap{max-width:1180px;margin:auto;padding:0 32px 24px}.directory-close{background:transparent}.bottom-nav{display:none}main{min-height:60vh}.container{max-width:1180px;margin:auto;padding:0 32px}.narrow{max-width:780px}.wide{max-width:960px}.page-head{padding:44px 0 30px}.breadcrumb{font-size:14px;color:var(--muted);margin-bottom:10px}.breadcrumb a{color:var(--muted)}h1,h2,h3{color:var(--title);margin-top:0}h1{font-size:34px;line-height:1.25;margin-bottom:16px}h2{font-size:25px;line-height:1.35;margin-bottom:14px}h3{font-size:19px;line-height:1.45;margin-bottom:10px}.lead{font-size:17px;max-width:820px}.tag{display:inline-block;background:var(--sand);color:var(--green2);padding:4px 9px;border-radius:999px;font-size:14px;margin-bottom:12px}.section{padding:56px 0}.section.soft{background:var(--soft)}.section.sand{background:var(--sand)}.prose p{margin:0 0 18px}.prose ul{padding-left:1.25rem}.prose li{margin:7px 0}.related{border-top:1px solid var(--border);margin-top:30px;padding-top:18px;display:flex;gap:18px;flex-wrap:wrap}.content-image{max-width:420px;max-height:260px;margin:24px auto}.image-panel{min-width:0;background:#fff;border:1px solid var(--border);border-radius:12px;padding:16px;display:flex;align-items:center;justify-content:center}.hero{padding:44px 0 56px}.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center}.hero-copy p{max-width:660px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}.hero-media img{max-width:430px;max-height:300px;margin:auto}.reading-lines{display:grid;grid-template-columns:1.35fr .8fr;gap:28px;align-items:start}.main-line{background:#fff;border:1px solid var(--border);border-radius:16px;padding:24px;box-shadow:var(--shadow)}.main-line-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:20px;align-items:center}.main-line img{max-height:190px}.minor-lines{display:grid;gap:20px}.minor-line{padding:22px;border-left:4px solid var(--gold);background:transparent}.radar-layout{display:grid;grid-template-columns:.75fr 1.25fr;gap:38px;align-items:start}.purpose-list{display:grid;gap:12px}.purpose-list div{padding:12px 0;border-bottom:1px solid var(--border)}.radar-copy img{max-height:220px;margin:20px 0}.people-space{display:grid;grid-template-columns:1.35fr .65fr;gap:38px}.people-main img{max-height:240px;margin:24px 0}.side-note{background:#fff;border:1px solid var(--border);border-radius:12px;padding:22px}.side-note img{max-height:180px;margin:18px auto}.essay-visual img{max-height:240px;margin:28px auto}.lab-layout,.continue-layout{display:grid;grid-template-columns:.55fr 1.45fr;gap:36px;align-items:center}.lab-layout img{max-width:340px;max-height:300px}.steps{max-width:820px;margin:auto;border-left:2px solid var(--gold);padding-left:28px}.step{padding:0 0 26px 8px;position:relative}.step:before{content:"";position:absolute;left:-35px;top:7px;width:12px;height:12px;border-radius:50%;background:var(--orange);border:3px solid var(--bg)}.steps img{max-height:200px;margin:10px 0 32px}.topics-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:28px}.topic-main{background:#fff;border:1px solid var(--border);border-radius:16px;padding:24px}.topic-main img{max-height:240px;margin:20px auto}.topic-short{display:grid;gap:16px}.topic-short article{padding:18px;border-bottom:1px solid var(--border)}.letter-layout{display:grid;grid-template-columns:1.3fr .7fr;gap:30px;align-items:start}.letter-copy{max-width:740px}.letter-layout img{max-height:220px}.continue-layout img{max-width:240px;max-height:380px}.text-links{display:flex;gap:16px;flex-wrap:wrap;border-top:1px solid var(--border);padding-top:20px;margin-top:22px}.split{display:grid;grid-template-columns:minmax(0,1fr) 250px;gap:34px;align-items:start}.rail{border-left:1px solid var(--border);padding-left:22px}.rail a,.rail-item{display:block;padding:7px 0}.rail-item{color:var(--text)}.number-flow{display:grid;grid-template-columns:72px minmax(0,1fr);gap:18px;margin:28px 0}.number{font-size:28px;color:var(--gold);font-weight:700}.block{padding:24px 0;border-bottom:1px solid var(--border)}.tone-chapter{padding:24px 0}.tone-chapter:nth-child(even){padding-left:7%}.tone-chapter:nth-child(odd){padding-right:7%}.sound-list{background:var(--soft);padding:18px 22px;border-radius:12px;margin:24px 0}.note-article{padding:38px 0;border-bottom:1px solid var(--border)}.note-article.narrower{max-width:680px;margin:auto}.topic-layout-2{display:grid;grid-template-columns:1fr 1fr;gap:30px}.topic-index{border-left:3px solid var(--gold);padding-left:22px}.archive-group{padding:22px 0;border-bottom:1px solid var(--border)}.archive-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 24px}.faq-item{padding:24px 0;border-bottom:1px solid var(--border)}.faq-item h2{font-size:20px}.site-footer{background:var(--footer);color:var(--footerText);margin-top:56px}.footer-inner{max-width:1180px;margin:auto;padding:46px 32px;display:grid;grid-template-columns:1.4fr repeat(4,1fr);gap:28px}.site-footer h2{color:#fff;font-size:18px}.site-footer p{color:#dfe6e1}.site-footer a{display:block;color:var(--footerText);text-decoration:none;padding:3px 0}.site-footer a:hover{color:#e7c98d}:focus-visible{outline:3px solid var(--orange);outline-offset:3px}
@media(max-width:980px){.header-inner{padding:0 22px}.desktop-nav,.header-actions{display:none}.mobile-actions{display:flex}.brand small{display:none}.desktop-directory{display:none}.mobile-directory{display:grid;gap:22px;padding:22px}.mobile-grid{display:grid;grid-template-columns:1fr 1fr;gap:5px 18px}.directory-close-wrap{padding:0 22px 20px}.container{padding:0 22px}.hero-grid,.people-space,.lab-layout,.continue-layout,.letter-layout,.topics-grid,.radar-layout{grid-template-columns:1fr}.hero-media img{max-height:260px}.reading-lines{grid-template-columns:1fr}.minor-lines{grid-template-columns:1fr 1fr}.footer-inner{grid-template-columns:repeat(2,1fr);padding:40px 22px}.split{grid-template-columns:1fr}.rail{border-left:0;border-top:1px solid var(--border);padding:20px 0 0}.topic-layout-2{grid-template-columns:1fr}}
@media(max-width:640px){.brand-logo{display:none}.brand-icon{display:block}body{padding-bottom:calc(56px + env(safe-area-inset-bottom))}.header-inner{height:60px;padding:0 16px;gap:10px}.brand-logo{height:27px}.brand b{font-size:15px}.mobile-actions button,.mobile-actions a{padding:8px 10px;min-height:44px}.directory-inner{padding:18px 16px}.mobile-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:4px 10px}.directory-close-wrap{padding:0 16px 16px}.bottom-nav{position:fixed;bottom:0;left:0;right:0;height:calc(56px + env(safe-area-inset-bottom));padding-bottom:env(safe-area-inset-bottom);background:#fff;border-top:1px solid var(--border);display:grid;grid-template-columns:repeat(4,1fr);z-index:20}.bottom-nav a{display:flex;align-items:center;justify-content:center;text-decoration:none;color:var(--green);font-size:15px}.container{padding:0 16px}.page-head{padding:34px 0 22px}h1{font-size:28px}h2{font-size:22px}h3{font-size:18px}.lead{font-size:16px}.section{padding:40px 0}.hero{padding:30px 0 40px}.hero-grid{gap:28px}.hero-media img{max-height:220px}.main-line-layout{grid-template-columns:1fr}.minor-lines{grid-template-columns:1fr}.content-image{max-height:200px}.radar-copy img{max-height:190px}.people-main img{max-height:200px}.lab-layout img{max-height:210px}.steps{padding-left:22px}.step:before{left:-29px}.continue-layout img{max-width:190px;max-height:290px}.footer-inner{grid-template-columns:1fr;padding:34px 16px;gap:18px}.archive-links{grid-template-columns:1fr}.number-flow{grid-template-columns:48px minmax(0,1fr);gap:12px}.tone-chapter:nth-child(even),.tone-chapter:nth-child(odd){padding-left:0;padding-right:0}}
@media(max-width:370px){.mobile-grid{grid-template-columns:1fr}.brand span{max-width:110px}.brand b{white-space:normal;line-height:1.2}}