:root{--paper:#f7f8f5;--ink:#202420;--muted:#858b80;--line:#e4e7df;--green:#527a53;--green-dark:#36583b;--lime:#c3d58d;--mono:'DM Mono',monospace;--sans:'DM Sans','Noto Sans SC',sans-serif;--chinese:'Noto Sans SC',sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans),var(--chinese);font-size:14px;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}.wrap{width:min(1112px,calc(100% - 64px));margin-inline:auto}.topbar{height:76px;padding:0 max(calc((100vw - 1112px)/2),32px);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;background:rgba(247,248,245,.94);position:sticky;top:0;z-index:10;backdrop-filter:blur(12px)}.brand{display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700;letter-spacing:-.4px}.brand-mark{width:28px;height:28px;display:grid;place-items:center;background:var(--green-dark);color:#f6f7eb;font-size:13px;font-weight:600;border-radius:3px}.brand-dot{color:var(--green);font-size:20px}.main-nav{display:flex;align-items:center;gap:39px;height:100%}.nav-link{height:100%;display:flex;align-items:center;position:relative;color:#777e74;font-size:13px;transition:color .2s}.nav-link:hover,.nav-link.active{color:var(--ink)}.nav-link.active:after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;background:var(--green)}.nav-cta{font-size:12px;border:1px solid #dce0d8;padding:10px 14px;border-radius:3px;transition:all .2s}.nav-cta:hover{background:var(--green-dark);color:#fff;border-color:var(--green-dark)}.nav-cta span{color:var(--green);margin-left:10px}.nav-cta:hover span{color:var(--lime)}.menu-toggle{display:none;border:0;background:none}.hero{min-height:530px;display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:44px;padding-top:18px;padding-bottom:34px}.hero-copy{padding:16px 0 0 6px}.eyebrow{font:10px var(--mono);letter-spacing:1.25px;color:var(--green);display:flex;align-items:center;gap:9px}.status-dot{width:7px;height:7px;background:#7ca66e;border-radius:50%;box-shadow:0 0 0 4px #e9efdf}.hero h1{font-family:var(--chinese);font-weight:700;font-size:clamp(42px,5vw,59px);line-height:1.34;letter-spacing:-2.8px;margin:28px 0 16px}.accent{color:var(--green)}.hero-intro{font-family:var(--chinese);font-size:14px;color:#73796f;line-height:2.05;letter-spacing:.1px}.hero-actions{display:flex;align-items:center;gap:26px;margin-top:28px}.button{padding:13px 17px;border-radius:3px;font-size:12px}.button-dark{color:#fff;background:var(--green-dark);transition:background .2s,transform .2s}.button-dark:hover{background:#29482f;transform:translateY(-2px)}.button span{margin-left:22px;color:#b7cd8d}.text-link{font-size:12px;color:#687065}.text-link span{margin-left:8px;color:var(--green)}.hero-note{margin-top:49px;display:flex;align-items:center;gap:11px;color:#999f95;font-family:var(--chinese);font-size:11px}.note-rule{width:25px;height:1px;background:#a1ad97}.hero-visual{position:relative;height:385px;display:flex;justify-content:center;align-items:center}.visual-orbit{position:absolute;border:1px solid #e7eadf;border-radius:50%;width:335px;height:335px}.orbit-two{width:275px;height:275px;border-style:dashed;opacity:.72}.code-window{position:relative;z-index:2;width:360px;background:#232b27;border:1px solid #323b35;box-shadow:0 24px 60px rgba(34,49,37,.16);border-radius:5px;overflow:hidden;transform:rotate(-2deg)}.window-bar{height:39px;background:#2c342f;display:flex;align-items:center;justify-content:space-between;padding:0 13px;color:#92998f;font:10px var(--mono);border-bottom:1px solid #38413b}.window-dots{display:flex;gap:5px}.window-dots i{width:6px;height:6px;border-radius:50%;background:#748373}.window-dots i:nth-child(2){background:#a4a377}.window-dots i:nth-child(3){background:#708c75}.window-menu{font-size:17px;line-height:0}.code-content{padding:19px 15px 19px;font:11px/2.15 var(--mono);color:#d9e2d8;position:relative}.code-line{white-space:pre}.ln{display:inline-block;width:31px;color:#657067;font-size:10px}.indent{padding-left:18px}.indent.double{padding-left:36px}.code-purple{color:#c6a5df;font-weight:400}.code-blue{color:#8eb9db;font-weight:400}.code-yellow{color:#e2cf88;font-weight:400}.code-green{color:#a7c88c;font-weight:400}.code-cursor{position:absolute;left:195px;bottom:19px;width:1px;height:13px;background:#bcd694;animation:blink 1.1s steps(2,start) infinite}.code-footer{border-top:1px solid #38413b;padding:8px 13px;color:#92998f;font:9px var(--mono);display:flex;justify-content:space-between}.code-footer>span:first-child{display:flex;align-items:center;gap:6px}.footer-green{width:6px;height:6px;border-radius:50%;background:#92b481}.floating-tag{position:absolute;z-index:3;box-shadow:0 8px 28px #3e493c17;background:#fff;border:1px solid #e9ebe6;padding:10px 12px;color:#697167;border-radius:3px;font-size:10px}.tag-top{top:44px;right:4px}.tag-top span{color:var(--green);padding-right:5px}.tag-bottom{bottom:44px;left:4px}.tag-symbol{font:11px var(--mono);color:var(--green);margin-right:7px}.visual-index{position:absolute;bottom:8px;right:0;font:9px var(--mono);letter-spacing:1px;color:#9a9f95}.visual-index span{color:#bec8b8;padding:0 4px}.ticker{height:44px;background:#edf0e8;border-block:1px solid #e6e9e1;overflow:hidden;display:flex;align-items:center}.ticker-track{min-width:max-content;display:flex;align-items:center;gap:31px;animation:marquee 34s linear infinite;font:9px var(--mono);letter-spacing:1.5px;color:#868e7e}.ticker-track i{font-style:normal;color:var(--green);font-size:13px}.articles-section{padding-top:85px;padding-bottom:90px}.section-heading{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:29px}.section-eyebrow{gap:15px}.section-eyebrow span{color:#a5a99f;font-size:9px}.section-heading h2,.topics-intro h2,.about-copy h2{font-family:var(--chinese);font-size:30px;letter-spacing:-1.1px;margin:14px 0 0;line-height:1.4}.heading-star{color:var(--green);font-size:19px;margin-left:4px}.all-link{font-size:11px;color:#788073;padding-bottom:7px}.all-link span{color:var(--green);margin-left:9px}.article-layout{display:grid;grid-template-columns:1fr 1fr;gap:31px}.featured-card{border:1px solid var(--line);background:#fff}.feature-art{height:213px;background:#dfe7d4;position:relative;overflow:hidden}.art-grid{position:absolute;inset:0;background-image:linear-gradient(#70896616 1px,transparent 1px),linear-gradient(90deg,#70896616 1px,transparent 1px);background-size:26px 26px}.art-orb{position:absolute;width:192px;height:192px;border-radius:50%;right:95px;top:17px;background:linear-gradient(145deg,#98b084,#607e61);box-shadow:inset -18px -13px 35px #36543f44,0 15px 34px #45604736}.art-orb:before,.art-orb:after{content:"";position:absolute;border:1px solid #edf2d37d;inset:20px;border-radius:50%}.art-orb:after{inset:44px}.art-stamp{position:absolute;z-index:1;top:59px;left:48px;color:#f6f7ec;font:500 25px/1.05 var(--mono);letter-spacing:-1px;transform:rotate(-7deg);text-shadow:0 3px 12px #324c35a1}.art-stamp span{font-size:7px;letter-spacing:1.6px}.art-label{position:absolute;bottom:16px;left:17px;color:#50664e;font-size:9px;letter-spacing:.5px}.art-code{position:absolute;right:17px;top:17px;font:9px/1.8 var(--mono);color:#597255a1}.feature-body{padding:20px 21px 19px}.article-meta{display:flex;align-items:center;gap:12px;color:#969b92;font-size:9px}.category-pill{background:#edf1e8;color:var(--green-dark);padding:5px 8px;font-size:9px}.feature-body h3{font-family:var(--chinese);font-size:17px;line-height:1.65;margin:12px 0 8px;letter-spacing:-.4px}.feature-body h3 a:hover,.article-row h3 a:hover{color:var(--green)}.feature-body p{font-family:var(--chinese);color:#858a81;font-size:11px;line-height:1.9;margin:0 0 16px}.read-link{font-size:10px;color:var(--green-dark);font-weight:600}.read-link span{margin-left:9px}.article-list{display:flex;flex-direction:column}.article-row{padding:15px 1px 14px;border-bottom:1px solid var(--line)}.article-row:first-child{padding-top:5px}.row-top{display:flex;align-items:center;gap:12px}.row-number{font:10px var(--mono);color:#aab0a5}.category-text,.row-date{font:9px var(--mono);letter-spacing:.65px;color:#87947f}.row-date{margin-left:auto;color:#a4a99f}.article-row h3{font-family:var(--chinese);font-size:13px;line-height:1.6;margin:8px 0 7px}.row-bottom{font-family:var(--chinese);display:flex;justify-content:space-between;align-items:center;color:#92978e;font-size:10px}.row-arrow{color:var(--green);font-size:13px}.more-articles{height:50px;display:flex;align-items:center;gap:10px;font-size:10px;color:#777e73}.more-icon{height:21px;width:21px;border:1px solid #dbe1d7;display:grid;place-items:center;color:var(--green);font-size:13px}.more-arrow{margin-left:auto;color:var(--green)}.topics-section{background:#eef1ea;border-block:1px solid #e7eae2;padding:76px 0 80px}.topics-inner{display:grid;grid-template-columns:.85fr 1.6fr;gap:60px;align-items:center}.topics-intro h2{font-size:28px;margin-top:18px}.topics-intro>p{max-width:290px;color:#828980;font-family:var(--chinese);font-size:11px;line-height:2;margin-top:15px}.topic-link{display:inline-block;margin-top:15px}.topic-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.topic-card{min-height:152px;padding:15px 17px;background:#f8f9f6;border:1px solid #e3e7dd;position:relative;transition:transform .2s,border-color .2s}.topic-card:hover{transform:translateY(-3px);border-color:#bdcbb7}.topic-index{font:8px var(--mono);letter-spacing:1px;color:#a0a69a}.topic-icon{position:absolute;right:17px;top:13px;font-size:19px;color:#82997a}.topic-card strong{display:block;font-family:var(--chinese);font-size:14px;margin-top:22px}.topic-desc{display:block;color:#898f85;font-family:var(--chinese);font-size:10px;margin-top:7px}.topic-count{position:absolute;left:17px;right:17px;bottom:13px;padding-top:9px;border-top:1px solid #e8ebe5;color:#92988d;font-size:9px}.topic-count b{float:right;color:var(--green);font-size:12px;font-weight:400}.topic-java .topic-icon{color:#75915f}.topic-spring .topic-icon{color:#68916d}.topic-data .topic-icon{color:#7992a2}.topic-practice .topic-icon{color:#978467}.about-section{display:grid;grid-template-columns:.8fr 1.4fr .7fr;gap:48px;align-items:center;padding-top:88px;padding-bottom:89px}.about-mark{display:flex;flex-direction:column;align-items:center}.about-ring{height:150px;width:150px;border:1px solid #dfe5d9;border-radius:50%;display:grid;place-items:center;position:relative;color:#fff;background:radial-gradient(circle,#799271 0,#557052 60%,#edf0e7 61%,#edf0e7 64%,transparent 65%)}.about-ring span{font-family:var(--chinese);font-size:34px;font-weight:600}.about-ring i{position:absolute;right:12px;top:13px;background:var(--paper);color:var(--green);font-size:15px;font-style:normal}.about-caption{font:8px var(--mono);letter-spacing:1.3px;color:#9a9f95;margin-top:17px}.about-copy h2{font-size:28px;margin-top:16px}.about-copy>p{font-family:var(--chinese);font-size:11px;line-height:2;color:#80867d;margin:11px 0}.about-email{display:inline-flex;align-items:center;gap:9px;margin-top:11px;color:#5f705a;font:10px var(--mono)}.about-email>span:first-child{font-size:13px}.email-arrow{margin-left:7px;color:var(--green)}.about-note{border-left:1px solid #dfe4da;padding:13px 0 13px 23px}.note-quote{font-family:Georgia,serif;color:#8a9e7f;font-size:35px;line-height:.6}.about-note p{font:italic 14px/1.9 var(--mono);color:#707e69}.note-by{font:9px var(--mono);color:#a0a69c}.subscribe-band{background:#425e45;color:#f4f5e9;overflow:hidden}.subscribe-inner{min-height:136px;display:flex;align-items:center;justify-content:space-between;position:relative}.subscribe-inner .eyebrow{color:#bacaaa;font-size:9px}.subscribe-inner h2{font-family:var(--chinese);font-size:20px;letter-spacing:.2px;margin:11px 0}.subscribe-inner h2 span{color:#c5d69a}.subscribe-link{position:relative;z-index:1;border:1px solid #a7b59d70;padding:11px 14px;font-size:10px}.subscribe-link span{margin-left:20px;color:#d0dfad}.subscribe-spark{position:absolute;right:105px;top:-34px;color:#ffffff0d;font-size:144px}.footer{background:#f7f8f5}.footer-main{height:76px;display:flex;align-items:center;gap:23px;border-bottom:1px solid var(--line)}.footer-brand{font-size:14px}.footer-brand .brand-mark{height:25px;width:25px;font-size:11px}.footer-note{font-family:var(--chinese);font-size:10px;color:#9a9f95}.footer-social{margin-left:auto;display:flex;gap:8px}.footer-social a{height:26px;width:26px;display:grid;place-items:center;border:1px solid var(--line);border-radius:50%;color:#71816b;font-size:11px}.footer-bottom{min-height:60px;display:flex;align-items:center;justify-content:space-between;gap:12px;color:#9da197;font-size:9px}.footer-bottom>div{display:flex;gap:17px}.footer-bottom a:hover{color:var(--green)}.beian-placeholder{color:#aab0a7;font-family:var(--chinese);font-size:9px}@keyframes blink{to{visibility:hidden}}@keyframes marquee{to{transform:translateX(-50%)}}@media(max-width:850px){.wrap{width:min(100% - 42px,650px)}.topbar{padding-inline:22px}.main-nav{gap:23px}.hero{gap:18px;min-height:480px}.hero h1{font-size:44px}.hero-visual{transform:scale(.87);transform-origin:center}.article-layout{gap:20px}.topics-inner{gap:30px}.about-section{gap:25px;grid-template-columns:.7fr 1.5fr .6fr}.about-ring{width:125px;height:125px}.about-note{padding-left:16px}}@media(max-width:650px){.wrap{width:calc(100% - 40px)}.topbar{height:64px;padding:0 20px}.main-nav{display:none;position:absolute;top:64px;left:0;right:0;height:auto;padding:12px 20px 19px;background:var(--paper);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:0}.main-nav.open{display:flex}.nav-link{height:42px;border-bottom:1px solid #eceee8}.nav-link.active:after{display:none}.nav-cta{margin-left:auto;margin-right:17px;padding:8px 10px}.menu-toggle{display:flex;width:25px;height:24px;flex-direction:column;justify-content:center;gap:5px;padding:3px}.menu-toggle span{height:1.5px;width:19px;background:#53634f}.hero{grid-template-columns:1fr;gap:0;padding-top:57px;padding-bottom:40px}.hero-copy{padding:0}.hero h1{font-size:43px;letter-spacing:-2px;margin-top:23px}.hero-intro{font-size:12px}.hero-note{margin-top:31px}.hero-visual{height:323px;transform:scale(.88);margin:12px -20px -3px}.visual-orbit{width:295px;height:295px}.orbit-two{width:242px;height:242px}.code-window{width:min(350px,calc(100vw - 56px))}.tag-top{right:4px;top:29px}.tag-bottom{left:3px;bottom:40px}.articles-section{padding-top:63px;padding-bottom:64px}.section-heading h2{font-size:25px}.section-heading{margin-bottom:21px}.article-layout{grid-template-columns:1fr;gap:22px}.feature-art{height:200px}.feature-body{padding:17px}.feature-body h3{font-size:15px}.topics-section{padding:59px 0 62px}.topics-inner{grid-template-columns:1fr;gap:25px}.topics-intro h2{font-size:26px}.topics-intro>p{max-width:360px}.topic-grid{gap:9px}.topic-card{min-height:143px;padding:13px}.topic-card strong{font-size:13px;margin-top:22px}.topic-count{left:13px;right:13px}.about-section{padding-top:65px;padding-bottom:65px;grid-template-columns:1fr 1fr;gap:22px}.about-mark{grid-row:1;grid-column:1}.about-copy{grid-row:1;grid-column:2}.about-ring{width:108px;height:108px}.about-ring span{font-size:28px}.about-caption{font-size:7px}.about-copy h2{font-size:23px}.about-copy>p{font-size:10px}.about-note{grid-column:1/-1;margin-left:0;margin-top:8px;padding:3px 0 3px 16px}.about-note p{margin:8px 0;font-size:12px}.subscribe-inner{min-height:128px}.subscribe-inner h2{font-size:17px}.subscribe-link{font-size:9px;padding:10px}.subscribe-link span{margin-left:8px}.subscribe-spark{right:40px}.footer-main{height:69px;gap:12px}.footer-brand{font-size:12px;gap:7px}.footer-brand .brand-mark{width:23px;height:23px}.footer-note{font-size:9px}.footer-bottom{padding-top:14px;padding-bottom:16px;align-items:flex-start;flex-wrap:wrap;font-size:8px}.footer-bottom>div{order:3;width:100%;gap:14px;flex-wrap:wrap}.beian-placeholder{margin-left:auto;font-size:8px}}@media(max-width:380px){.hero h1{font-size:38px}.hero-visual{transform:scale(.78);margin-inline:-34px}.about-section{grid-template-columns:1fr}.about-mark{grid-column:1;grid-row:1;align-items:flex-start}.about-ring{margin-left:9px}.about-caption{margin-left:4px}.about-copy{grid-column:1;grid-row:2}.about-note{grid-row:3}.footer-note{display:none}}
