html,body{width:100%;height:100%}input::-ms-clear{display:none}input::-ms-reveal{display:none}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%;-ms-text-size-adjust:100%;-ms-overflow-style:scrollbar;-webkit-tap-highlight-color:#0000;font-family:sans-serif;line-height:1.15}body{margin:0}[tabindex="-1"]:focus{outline:none}hr{box-sizing:content-box;height:0;overflow:visible}h1,h2,h3,h4,h5,h6{margin-top:0;margin-bottom:.5em;font-weight:500}p{margin-top:0;margin-bottom:1em}abbr[title],abbr[data-original-title]{cursor:help;border-bottom:0;-webkit-text-decoration:underline dotted;text-decoration:underline dotted}address{font-style:normal;line-height:inherit;margin-bottom:1em}input[type=text],input[type=password],input[type=number],textarea{-webkit-appearance:none}ol,ul,dl{margin-top:0;margin-bottom:1em}ol ol,ul ul,ol ul,ul ol{margin-bottom:0}dt{font-weight:500}dd{margin-bottom:.5em;margin-left:0}blockquote{margin:0 0 1em}dfn{font-style:italic}b,strong{font-weight:bolder}small{font-size:80%}sub,sup{vertical-align:baseline;font-size:75%;line-height:0;position:relative}sub{bottom:-.25em}sup{top:-.5em}pre,code,kbd,samp{font-family:SFMono-Regular,Consolas,Liberation Mono,Menlo,Courier,monospace;font-size:1em}pre{margin-top:0;margin-bottom:1em;overflow:auto}figure{margin:0 0 1em}img{vertical-align:middle;border-style:none}a,area,button,[role=button],input:not([type=range]),label,select,summary,textarea{touch-action:manipulation}table{border-collapse:collapse}caption{text-align:left;caption-side:bottom;padding-top:.75em;padding-bottom:.3em}input,button,select,optgroup,textarea{color:inherit;font-size:inherit;font-family:inherit;line-height:inherit;margin:0}button,input{overflow:visible}button,select{text-transform:none}button,html [type=button],[type=reset],[type=submit]{-webkit-appearance:button}button::-moz-focus-inner{border-style:none;padding:0}[type=button]::-moz-focus-inner{border-style:none;padding:0}[type=reset]::-moz-focus-inner{border-style:none;padding:0}[type=submit]::-moz-focus-inner{border-style:none;padding:0}input[type=radio],input[type=checkbox]{box-sizing:border-box;padding:0}input[type=date],input[type=time],input[type=datetime-local],input[type=month]{-webkit-appearance:listbox}textarea{resize:vertical;overflow:auto}fieldset{border:0;min-width:0;margin:0;padding:0}legend{width:100%;max-width:100%;color:inherit;font-size:1.5em;line-height:inherit;white-space:normal;margin-bottom:.5em;padding:0;display:block}progress{vertical-align:baseline}[type=number]::-webkit-inner-spin-button{height:auto}[type=number]::-webkit-outer-spin-button{height:auto}[type=search]{outline-offset:-2px;-webkit-appearance:none}[type=search]::-webkit-search-cancel-button{-webkit-appearance:none}[type=search]::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{font:inherit;-webkit-appearance:button}output{display:inline-block}summary{display:list-item}template{display:none}[hidden]{display:none!important}
:root{--ink:#1f2a24;--muted:#6f7a72;--line:#e5dccd;--green:#2f6f5e;--green-dark:#234f44;--green-soft:#e8f0eb;--paper:#fbfaf5;--warm:#f3ead7;--page-bg:#f7f3ea;--cinnabar:#b15a3c;--cinnabar-soft:#f4e3dc;--gold:#9a7a3f;--gold-soft:#f3ead7;--mountain:#d8e2dd;--shadow:0 14px 32px #372d2012;--soft-shadow:0 8px 22px #372d200b;--float-shadow:0 16px 32px #372d2014, 0 3px 10px #372d200a, inset 0 1px 0 #fffcf4d1;--float-shadow-hover:0 24px 48px #372d201f, 0 8px 18px #372d2012, inset 0 1px 0 #fffcf4e0;--glass-panel:#fbfaf5c2;--glass-panel-soft:#fbfaf5a3;--paper-line:#e5dccdd1;--paper-line-strong:#c7b5979e;--content-max:1680px;--hero-content-max:1500px;--bp-xs:480px;--bp-sm:640px;--bp-md:768px;--bp-lg:1024px;--bp-xl:1280px;--bp-2xl:1536px;--page-max:var(--content-max);--page-gutter:clamp(14px, 1.6667vw, 32px);--content-gutter:calc(var(--page-gutter) * 2);--section-gap:clamp(28px, 4vw, 56px);--grid-gap:clamp(14px, 1.5vw, 24px);--viewport-height:100dvh}@property --shell-bg{syntax:"<color>";inherits:true;initial-value:#f7f3ea}@property --shell-bg-bottom{syntax:"<color>";inherits:true;initial-value:#f7f3ea}@property --shell-wash-left{syntax:"<color>";inherits:true;initial-value:#2f6f5e14}@property --shell-wash-right{syntax:"<color>";inherits:true;initial-value:#9a7a3f12}@property --shell-wash-bottom{syntax:"<color>";inherits:true;initial-value:#d8e2dd29}@property --shell-footer-fade{syntax:"<color>";inherits:true;initial-value:#f7f3ea85}@property --shell-texture-opacity{syntax:"<number>";inherits:true;initial-value:.2}*{box-sizing:border-box}html{scroll-behavior:smooth;scrollbar-gutter:stable}body{color:var(--ink);background:var(--page-bg);margin:0;font-family:Inter,PingFang SC,Microsoft YaHei,Arial,sans-serif;overflow-x:clip}a{color:inherit;text-decoration:none}button,input,textarea,select{font:inherit}img{max-width:100%;height:auto}.page-container{width:min(var(--page-max), calc(100% - var(--content-gutter)));margin-inline:auto}.responsive-grid{gap:var(--grid-gap);grid-template-columns:repeat(auto-fit,minmax(min(100%,280px),1fr));display:grid}.scroll-x{-webkit-overflow-scrolling:touch;overflow:auto hidden}.site-shell{--shell-bg:var(--page-bg);--shell-bg-bottom:var(--page-bg);--shell-wash-left:#2f6f5e14;--shell-wash-right:#9a7a3f12;--shell-wash-bottom:#d8e2dd29;--shell-texture-opacity:.2;--shell-footer-fade:#f7f3ea85;--shell-footer-opacity:.26;--shell-mountain-hue:0deg;--shell-mountain-saturate:.72;--shell-mountain-sepia:.08;--shell-cloud-hue:0deg;--shell-cloud-saturate:.86;--shell-cloud-sepia:.08;isolation:isolate;min-height:var(--viewport-height);background:radial-gradient(circle at 8% 14%, var(--shell-wash-left) 0, transparent 420px), radial-gradient(circle at 88% 18%, var(--shell-wash-right) 0, transparent 460px), radial-gradient(circle at 50% 100%, var(--shell-wash-bottom) 0, transparent 520px), linear-gradient(180deg, var(--shell-bg) 0%, var(--shell-bg-bottom) 100%);transition:--shell-bg 2.2s ease-in-out,--shell-bg-bottom 2.2s ease-in-out,--shell-wash-left 2.2s ease-in-out,--shell-wash-right 2.2s ease-in-out,--shell-wash-bottom 2.2s ease-in-out,--shell-footer-fade 2.2s ease-in-out,--shell-texture-opacity 2.2s ease-in-out,background 2.2s ease-in-out;position:relative;overflow-x:hidden}.page-theme-home{--shell-bg:#fbfdfb;--shell-bg-bottom:#f1f8f3;--shell-wash-left:#538f6f13;--shell-wash-right:#89b59911;--shell-wash-bottom:#cee5d838;--shell-footer-fade:#f1f8f37a;--shell-mountain-hue:6deg;--shell-mountain-saturate:.42;--shell-mountain-sepia:.03;--shell-cloud-hue:6deg;--shell-cloud-saturate:.52;--shell-cloud-sepia:.03;--shell-texture-opacity:.12}.page-theme-home.home-season-1{--shell-bg:#fbfdfb;--shell-bg-bottom:#f1f8f3;--shell-wash-left:#538f6f13;--shell-wash-right:#89b59911;--shell-wash-bottom:#cee5d838;--shell-footer-fade:#f1f8f37a;--shell-mountain-hue:6deg;--shell-mountain-saturate:.42;--shell-mountain-sepia:.03;--shell-cloud-hue:6deg;--shell-cloud-saturate:.52;--shell-cloud-sepia:.03}.page-theme-home.home-season-2{--shell-bg:#fbfdfc;--shell-bg-bottom:#eef7f2;--shell-wash-left:#19674c18;--shell-wash-right:#34805b16;--shell-wash-bottom:#a8d3be3d;--shell-footer-fade:#eef7f280;--shell-mountain-hue:-2deg;--shell-mountain-saturate:.52;--shell-mountain-sepia:.02;--shell-cloud-hue:-2deg;--shell-cloud-saturate:.6;--shell-cloud-sepia:.02}.page-theme-home.home-season-3{--shell-bg:#fffefd;--shell-bg-bottom:#f8f5ee;--shell-wash-left:#b291520c;--shell-wash-right:#d2b16f0b;--shell-wash-bottom:#e2cda624;--shell-footer-fade:#f8f5ee75;--shell-mountain-hue:-10deg;--shell-mountain-saturate:.34;--shell-mountain-sepia:.07;--shell-cloud-hue:-8deg;--shell-cloud-saturate:.4;--shell-cloud-sepia:.07}.page-theme-home.home-season-4{--shell-bg:#fdfefe;--shell-bg-bottom:#f3f7f5;--shell-wash-left:#7e9d920d;--shell-wash-right:#b2c3bc0b;--shell-wash-bottom:#d8e2dd29;--shell-footer-fade:#f3f7f575;--shell-mountain-hue:0deg;--shell-mountain-saturate:.28;--shell-mountain-sepia:.01;--shell-cloud-hue:0deg;--shell-cloud-saturate:.34;--shell-cloud-sepia:.01;--shell-texture-opacity:.1}.page-theme-courses{--shell-bg:#fcfeff;--shell-bg-bottom:#f4f9fc;--shell-wash-left:#326b990d;--shell-wash-right:#6091b40b;--shell-wash-bottom:#cce1ee29;--shell-footer-fade:#f4f9fc75;--shell-mountain-hue:34deg;--shell-mountain-saturate:.36;--shell-mountain-sepia:0;--shell-cloud-hue:24deg;--shell-cloud-saturate:.42;--shell-cloud-sepia:0;--shell-texture-opacity:.11}.page-theme-learning-path{--shell-bg:#fdfefe;--shell-bg-bottom:#f5f8f7;--shell-wash-left:#54706a0b;--shell-wash-right:#8ba09b0b;--shell-wash-bottom:#cddad726;--shell-footer-fade:#f5f8f775;--shell-mountain-hue:2deg;--shell-mountain-saturate:.28;--shell-mountain-sepia:.03;--shell-cloud-hue:2deg;--shell-cloud-saturate:.34;--shell-cloud-sepia:.02;--shell-texture-opacity:.11}.page-theme-resources{--shell-bg:#fffffc;--shell-bg-bottom:#f6f8ef;--shell-wash-left:#7e96580c;--shell-wash-right:#acbc810b;--shell-wash-bottom:#d6deb226;--shell-footer-fade:#f6f8ef75;--shell-mountain-hue:72deg;--shell-mountain-saturate:.3;--shell-mountain-sepia:.07;--shell-cloud-hue:68deg;--shell-cloud-saturate:.36;--shell-cloud-sepia:.05;--shell-texture-opacity:.12}.page-theme-culture{--shell-bg:#fffefd;--shell-bg-bottom:#f8f4ed;--shell-wash-left:#b08a500d;--shell-wash-right:#cfb2760b;--shell-wash-bottom:#e2cca524;--shell-footer-fade:#f8f4ed75;--shell-mountain-hue:-10deg;--shell-mountain-saturate:.32;--shell-mountain-sepia:.08;--shell-cloud-hue:-8deg;--shell-cloud-saturate:.38;--shell-cloud-sepia:.06;--shell-texture-opacity:.12}.page-theme-practice{--shell-bg:#fcfefd;--shell-bg-bottom:#f3faf6;--shell-wash-left:#4882660d;--shell-wash-right:#7fad910c;--shell-wash-bottom:#c7e1d32b;--shell-footer-fade:#f3faf67a;--shell-mountain-hue:8deg;--shell-mountain-saturate:.34;--shell-mountain-sepia:.02;--shell-cloud-hue:8deg;--shell-cloud-saturate:.4;--shell-cloud-sepia:.02;--shell-texture-opacity:.11}.page-theme-community{--shell-bg:#fffefd;--shell-bg-bottom:#faf5f1;--shell-wash-left:#d69a760c;--shell-wash-right:#e7b8970b;--shell-wash-bottom:#eacfbb24;--shell-footer-fade:#faf5f175;--shell-mountain-hue:-18deg;--shell-mountain-saturate:.32;--shell-mountain-sepia:.07;--shell-cloud-hue:-14deg;--shell-cloud-saturate:.38;--shell-cloud-sepia:.05;--shell-texture-opacity:.12}.page-theme-about{--shell-bg:#fffefe;--shell-bg-bottom:#f8f5f8;--shell-wash-left:#9877970b;--shell-wash-right:#bba0bb0b;--shell-wash-bottom:#d5c9d821;--shell-footer-fade:#f8f5f875;--shell-mountain-hue:-38deg;--shell-mountain-saturate:.28;--shell-mountain-sepia:.04;--shell-cloud-hue:-34deg;--shell-cloud-saturate:.34;--shell-cloud-sepia:.03;--shell-texture-opacity:.11}.site-shell:before,.site-shell:after{z-index:0;pointer-events:none;content:"";position:absolute;left:0;right:0}.site-shell:before{opacity:var(--shell-texture-opacity);mix-blend-mode:multiply;background:url(/paper-texture.jpg) top/620px 620px;position:fixed;inset:0}.site-shell:after{background:url(/footer-mountain.png) center bottom / max(1680px, calc(100vw + 220px)) auto no-repeat, linear-gradient(180deg, #f7f3ea00, var(--shell-footer-fade));background-blend-mode:multiply, normal;mix-blend-mode:multiply;-webkit-mask-composite:source-in;height:300px;opacity:var(--shell-footer-opacity);bottom:0;-webkit-mask-image:linear-gradient(#0000 0%,#00000057 22%,#000 46% 100%),linear-gradient(90deg,#0000 0%,#000 7% 93%,#0000 100%);mask-image:linear-gradient(#0000 0%,#00000057 22%,#000 46% 100%),linear-gradient(90deg,#0000 0%,#000 7% 93%,#0000 100%);-webkit-mask-composite:source-in;mask-composite:intersect}.site-shell>*{z-index:1;position:relative}.page-decor{z-index:0;pointer-events:none;position:absolute;inset:0;overflow:hidden}.decor-bamboo,.decor-rock,.decor-mountain,.decor-cloud{-webkit-user-select:none;user-select:none;display:block;position:absolute}.decor-bamboo{opacity:.17;will-change:transform;width:clamp(200px,16vw,287px);animation:7.8s ease-in-out infinite alternate bamboo-sway}.decor-bamboo-left{transform-origin:14% 10%;--bamboo-base:translateX(-22%) rotate(-1deg);--bamboo-sway:translateX(-16%) rotate(3.6deg) translate3d(8px, -7px, 0);top:clamp(430px,32vw,520px);left:0}.decor-bamboo-right{opacity:.18;transform-origin:50% 12%;--bamboo-base:translateX(22%) scaleX(-1) rotate(4deg);--bamboo-sway:translateX(16%) scaleX(-1) rotate(8deg) translate3d(-8px, -6px, 0);width:clamp(220px,18vw,313px);animation-duration:8.8s;animation-delay:-2.8s;top:clamp(450px,34vw,560px);right:0}.decor-rock{opacity:.12;width:360px;bottom:132px;right:-78px}.decor-mountain{top:var(--mountain-top,680px);right:var(--mountain-right,auto);left:var(--mountain-left,auto);width:var(--mountain-width,clamp(260px, 24vw, 500px));--mountain-min-opacity:.045;--mountain-mid-opacity:.065;--mountain-max-opacity:.09;--mountain-scale-from:1.02;--mountain-scale-to:1.05;--mountain-duration:14s;--mountain-delay:0s;z-index:0;height:auto;opacity:var(--mountain-min-opacity);filter:hue-rotate(var(--shell-mountain-hue)) saturate(var(--shell-mountain-saturate)) sepia(var(--shell-mountain-sepia)) contrast(.96);mix-blend-mode:multiply;transform:translate3d(0, 0, 0) scale(var(--mountain-scale-from));transform-origin:bottom;will-change:opacity, transform;animation:mountain-breathe var(--mountain-duration) ease-in-out infinite;animation-delay:var(--mountain-delay);-webkit-mask-image:radial-gradient(78% 86% at 50% 56%,#000 0% 58%,#000000b3 76%,#0000 100%);mask-image:radial-gradient(78% 86% at 50% 56%,#000 0% 58%,#000000b3 76%,#0000 100%)}.decor-cloud{top:var(--cloud-top,520px);right:var(--cloud-right,auto);left:var(--cloud-left,auto);width:var(--cloud-width,clamp(112px, 10vw, 180px));--cloud-flip:1;--cloud-scale:1;--cloud-rotate:0deg;--cloud-from-x:-72px;--cloud-from-y:0px;--cloud-to-x:72px;--cloud-to-y:-8px;--cloud-min-opacity:0;--cloud-mid-opacity:.1;--cloud-max-opacity:.22;--cloud-drift-duration:9s;--cloud-drift-delay:0s;height:auto;filter:hue-rotate(var(--shell-cloud-hue)) saturate(var(--shell-cloud-saturate)) sepia(var(--shell-cloud-sepia)) drop-shadow(0 12px 18px #405c5414);opacity:var(--cloud-min-opacity);transform:translate3d(var(--cloud-from-x), var(--cloud-from-y), 0) scale(var(--cloud-scale)) scaleX(var(--cloud-flip)) rotate(var(--cloud-rotate));transform-origin:50%;will-change:transform, opacity;animation:cloud-drift var(--cloud-drift-duration) ease-in-out infinite;animation-delay:var(--cloud-drift-delay)}@keyframes mountain-breathe{0%,to{opacity:var(--mountain-min-opacity);transform:translate3d(0, 0, 0) scale(var(--mountain-scale-from))}32%{opacity:var(--mountain-mid-opacity)}64%{opacity:var(--mountain-max-opacity);transform:translate3d(0, 0, 0) scale(var(--mountain-scale-to))}}@keyframes cloud-drift{0%{opacity:var(--cloud-min-opacity);transform:translate3d(var(--cloud-from-x), var(--cloud-from-y), 0) scale(var(--cloud-scale)) scaleX(var(--cloud-flip)) rotate(var(--cloud-rotate))}16%,66%{opacity:var(--cloud-max-opacity)}42%{opacity:var(--cloud-mid-opacity)}to{opacity:var(--cloud-min-opacity);transform:translate3d(var(--cloud-to-x), var(--cloud-to-y), 0) scale(var(--cloud-scale)) scaleX(var(--cloud-flip)) rotate(var(--cloud-rotate))}}@keyframes bamboo-sway{0%{transform:var(--bamboo-base)}to{transform:var(--bamboo-sway)}}@media (prefers-reduced-motion:reduce){.decor-mountain,.decor-cloud{opacity:var(--cloud-max-opacity);animation:none}.decor-mountain{opacity:var(--mountain-max-opacity);transform:translate3d(0, 0, 0) scale(var(--mountain-scale-from))}.decor-bamboo{transform:var(--bamboo-base);animation:none}}.top-nav{z-index:20;width:min(var(--content-max), calc(100% - var(--content-gutter)));-webkit-backdrop-filter:blur(22px)saturate(1.08);background:linear-gradient(#ffffffc7,#ffffff8f);border:1px solid #ffffffc2;border-radius:999px;grid-template-columns:auto 1fr auto;align-items:center;gap:24px;min-height:68px;margin:18px auto -86px;padding:0 24px;display:grid;position:sticky;top:16px;overflow:hidden;box-shadow:0 18px 46px #1f2a241a,inset 0 1px #ffffffb8}.brand{align-items:center;min-width:max-content;display:inline-flex}.brand-logo{object-fit:contain;width:158px;height:46px;display:block}.brand-seal{color:#fff;background:var(--cinnabar);letter-spacing:0;border-radius:50%;place-items:center;width:42px;height:42px;font-size:11px;font-weight:800;line-height:1.1;display:inline-grid}.brand strong{letter-spacing:0;font-size:20px;font-weight:800;display:block}.brand small{color:var(--ink);letter-spacing:2px;margin-top:2px;font-size:10px;font-weight:700;display:block}.nav-links{white-space:nowrap;justify-content:center;align-items:center;gap:clamp(18px,2.2vw,42px);display:flex}.nav-links a{padding:25px 0 22px;font-size:15px;font-weight:650;position:relative}.nav-links a.active{color:var(--green)}.nav-links a.active:after{content:"";background:var(--green);border-radius:999px;height:3px;position:absolute;bottom:14px;left:0;right:0}.nav-actions{align-items:center;gap:14px;display:flex}.nav-auth-actions{justify-content:flex-end;align-items:center;gap:14px;width:210px;display:inline-flex}.nav-auth-placeholder{width:210px;height:38px;display:block}.nav-auth-actions .ant-btn{z-index:1;justify-content:center;min-width:82px;position:relative}.nav-auth-actions .ant-btn:first-child{min-width:92px}.nav-actions .ant-btn{-webkit-backdrop-filter:blur(12px)saturate(1.05);background:#ffffff9e;border-color:#ffffffbd;border-radius:12px;box-shadow:0 8px 20px #1f2a240e,inset 0 1px #ffffffad}.site-search{-webkit-backdrop-filter:blur(12px)saturate(1.05);background:#ffffff9e;border-color:#ffffffc2;width:245px;box-shadow:0 8px 20px #1f2a240b,inset 0 1px #ffffffb3}.locale-switch{-webkit-backdrop-filter:blur(12px)saturate(1.05);background:#ffffff8f;border:1px solid #ffffffb8;border-radius:999px;align-items:center;height:38px;padding:3px;display:inline-flex;box-shadow:inset 0 1px #ffffffa8}.locale-switch button{color:#4a5a52;cursor:pointer;background:0 0;border:0;border-radius:999px;min-width:36px;height:30px;padding:0 10px;font-size:13px;font-weight:800}.locale-switch button.active{color:#fff;background:var(--green);box-shadow:0 6px 14px #2f6f5e33}.hero{--hero-bg:#edf6f2;--hero-scrim-rgb:237 246 242;--hero-glow:#b9d3cba3;--hero-wash-left:#f9fdfaa3;--hero-wash-right:#5680772e;--hero-edge-blur:10px;--hero-fade-depth:clamp(28px, 2vw, 38px);--hero-accent:#3f7368;--hero-accent-hover:#94b4ad;--hero-title-color:#2f665b;--hero-subtitle-color:#213f39;--hero-body-color:#48645d;z-index:1;background:0 0;min-height:340px;transition:background-color .7s;position:relative;overflow:visible}.hero-theme-1{--hero-bg:#edf6f2;--hero-scrim-rgb:237 246 242;--hero-glow:#b9d3cbad;--hero-wash-left:#f9fdfaa3;--hero-wash-right:#5680772e;--hero-accent:#3f7368;--hero-accent-hover:#94b4ad}.hero-theme-2{--hero-bg:#f2f7f1;--hero-scrim-rgb:242 247 241;--hero-glow:#c6dacfa8;--hero-wash-left:#fbfdf8a3;--hero-wash-right:#65846a2e;--hero-accent:#5c7b67;--hero-accent-hover:#a2b7a9}.hero-theme-3{--hero-bg:#f4f8f5;--hero-scrim-rgb:244 248 245;--hero-glow:#c2d6d09e;--hero-wash-left:#fcfefba8;--hero-wash-right:#69827b33;--hero-accent:#667f78;--hero-accent-hover:#a6bbb4}.hero-theme-4{--hero-bg:#eaf3f0;--hero-scrim-rgb:234 243 240;--hero-glow:#b4cfc7b8;--hero-wash-left:#f8fcfa9e;--hero-wash-right:#4b746c38;--hero-accent:#426f67;--hero-accent-hover:#92b1aa}.hero-media{z-index:0;-webkit-mask-image:linear-gradient(180deg, #000 0%, #000 calc(100% - var(--hero-fade-depth)), #00000094 calc(100% - 12px), transparent 100%);mask-image:linear-gradient(180deg, #000 0%, #000 calc(100% - var(--hero-fade-depth)), #00000094 calc(100% - 12px), transparent 100%);-webkit-mask-image:linear-gradient(180deg, #000 0%, #000 calc(100% - var(--hero-fade-depth)), #00000094 calc(100% - 12px), transparent 100%);position:absolute;inset:0;overflow:hidden}.hero-media img{object-fit:cover;object-position:center center;opacity:0;width:100%;height:100%;transition:opacity .7s;position:absolute;inset:0;transform:scale(1.01)}.hero-media img.active{opacity:1}.hero-media:after{pointer-events:none;content:"";background:linear-gradient(110deg, var(--hero-wash-left) 0%, #fff0 46%, var(--hero-wash-right) 100%);transition:background .7s;position:absolute;inset:0}.hero:before{z-index:1;pointer-events:none;content:"";background:linear-gradient(90deg, rgb(var(--hero-scrim-rgb) / .9) 0%, rgb(var(--hero-scrim-rgb) / .72) 32%, rgb(var(--hero-scrim-rgb) / .14) 62%, rgb(var(--hero-scrim-rgb) / .02) 100%), radial-gradient(circle at 18% 36%, var(--hero-glow) 0, #e8f6f100 260px);-webkit-mask-image:linear-gradient(180deg, #000 0%, #000 calc(100% - var(--hero-fade-depth)), #0000008a calc(100% - 12px), transparent 100%);mask-image:linear-gradient(180deg, #000 0%, #000 calc(100% - var(--hero-fade-depth)), #0000008a calc(100% - 12px), transparent 100%);-webkit-mask-image:linear-gradient(180deg, #000 0%, #000 calc(100% - var(--hero-fade-depth)), #0000008a calc(100% - 12px), transparent 100%);transition:background .7s;position:absolute;inset:0}.hero:after{z-index:1;pointer-events:none;content:"";height:clamp(34px,2.6vw,48px);-webkit-backdrop-filter:blur(var(--hero-edge-blur));background:#fff0;position:absolute;bottom:-10px;left:0;right:0;-webkit-mask-image:linear-gradient(#0000 0%,#00000094 38%,#000000c7 64%,#0000 100%);mask-image:linear-gradient(#0000 0%,#00000094 38%,#000000c7 64%,#0000 100%)}.hero-copy{z-index:2;width:min(var(--hero-content-max), calc(100% - var(--content-gutter)));margin:0 auto;padding:132px 0 62px;position:relative}.hero h1{max-width:720px;color:var(--hero-title-color,var(--green));letter-spacing:0;text-shadow:0 2px 18px #ffffffc2;margin:0;font-size:clamp(34px,3.7vw,54px);font-weight:820;line-height:1.16}.hero-title-en{max-width:min(980px,100%);font-size:clamp(28px,3vw,46px);line-height:1.12}.hero-title-line{display:block}.hero-title-en .hero-title-line{white-space:nowrap}.hero h1 .hero-subtitle-line{color:var(--hero-subtitle-color,var(--ink));margin-top:10px;display:block}.hero p{color:var(--hero-body-color,#40514a);margin:22px 0 0;font-size:18px;font-weight:560}.hero-actions{gap:16px;margin-top:28px;display:flex}.hero-actions .ant-btn-primary,.nav-actions .ant-btn-primary,.newsletter .ant-btn-primary,.community-card .ant-btn-primary,.voice-wave .ant-btn-primary{background:var(--green);box-shadow:0 10px 24px #2f6f5e33}.hero-dots{z-index:3;justify-content:center;gap:10px;display:flex;position:absolute;bottom:24px;left:0;right:0}.hero-dots button{cursor:pointer;background:#c7b5977a;border:0;border-radius:999px;width:10px;height:10px;padding:0;transition:width .2s,background-color .2s,transform .2s}.hero-dots .current{background:var(--hero-accent);width:28px}.hero-dots button:hover{background:var(--hero-accent-hover);transform:translateY(-1px)}.metrics-panel,.section-block,.community-grid,.partners,.newsletter,.site-footer,.site-record{width:min(var(--content-max), calc(100% - var(--content-gutter)));margin-left:auto;margin-right:auto}.metrics-panel{z-index:2;background:var(--glass-panel-soft);border:1px solid var(--paper-line);box-shadow:var(--soft-shadow);-webkit-backdrop-filter:blur(18px)saturate(1.12);border-radius:8px;grid-template-columns:repeat(5,1fr);gap:0;margin-top:24px;padding:18px;display:grid;position:relative}.metric-item{border-right:1px solid #e5dccd9e;justify-content:center;align-items:center;gap:14px;min-height:60px;display:flex}.metric-item:last-child{border-right:0}.metric-icon,.path-icon{width:54px;height:54px;color:var(--green);background:var(--green-soft);border-radius:50%;place-items:center;display:inline-grid}.metric-item strong{color:var(--green);font-size:22px;font-weight:820;display:block}.metric-item small{color:var(--muted);font-size:14px;font-weight:560}.section-block{margin-top:32px;position:relative}.section-block.compact{margin-top:34px}.section-heading{justify-content:space-between;align-items:flex-end;gap:18px;margin-bottom:18px;display:flex}.section-heading h2{margin:0;font-size:26px;font-weight:820}.section-heading p{color:var(--muted);margin:0 0 2px 12px;font-size:14px;font-weight:540;display:inline-block}.section-heading a{color:var(--green);align-items:center;gap:6px;font-size:14px;font-weight:760;display:inline-flex}.category-tabs{gap:16px;margin-bottom:20px;display:flex}.category-tabs button{color:#30413c;cursor:pointer;background:0 0;border:0;border-radius:999px;height:34px;padding:0 18px;font-weight:560}.category-tabs .selected{color:var(--green-dark);background:var(--green-soft);font-weight:760}.course-grid,.tool-grid,.teacher-grid{gap:20px;display:grid}.course-grid{grid-template-columns:repeat(5,minmax(0,1fr))}.course-card,.path-card,.tool-card,.teacher-card,.community-card,.partners,.newsletter{background:var(--glass-panel);box-shadow:var(--float-shadow);-webkit-backdrop-filter:blur(16px)saturate(1.08);background-clip:padding-box;border:1px solid #e0ece7bd;border-radius:8px;transition:transform .22s,border-color .22s,box-shadow .22s,background-color .22s,-webkit-backdrop-filter .22s,backdrop-filter .22s;position:relative}.course-card:hover,.path-card:hover,.tool-card:hover,.teacher-card:hover,.community-card:hover,.partners:hover,.newsletter:hover,.course-card:focus-within,.path-card:focus-within,.tool-card:focus-within,.teacher-card:focus-within,.community-card:focus-within,.partners:focus-within,.newsletter:focus-within{z-index:2;box-shadow:var(--float-shadow-hover);-webkit-backdrop-filter:blur(18px)saturate(1.12);border-color:#b8d7cbf2;transform:translateY(-4px)}.course-card{overflow:hidden}.course-card:hover{transform:translateY(-4px)}.course-image{background:#edf7f2;height:158px;position:relative;overflow:hidden}.course-image img{object-fit:cover;object-position:center center;filter:saturate(.92)contrast(.96);width:100%;height:100%}.course-image:after{pointer-events:none;content:"";background:linear-gradient(#ffffff0a 0%,#ffffff38 100%);position:absolute;inset:0}.course-image .ant-tag{margin:0;font-weight:760;position:absolute;top:10px;left:10px}.course-body{padding:16px 16px 14px}.course-body h3,.teacher-card h3{margin:0;font-size:17px;font-weight:820}.course-body p{min-height:40px;color:var(--muted);margin:8px 0 13px;font-size:14px;line-height:1.45}.course-meta{color:#667770;justify-content:space-between;align-items:center;gap:10px;margin-bottom:10px;font-size:13px;display:flex}.course-meta span,.teacher-card span{align-items:center;gap:5px;display:inline-flex}.path-row{grid-template-columns:repeat(5,minmax(0,1fr));gap:20px;display:grid}.path-cell{min-width:0;position:relative}.path-card{background:var(--glass-panel-soft);justify-content:center;align-items:center;gap:14px;min-height:96px;padding:18px;display:flex}.path-card strong{font-size:17px;font-weight:780;display:block}.path-card small{color:var(--muted);margin-top:5px;font-size:13px;font-weight:520;display:block}.path-arrow{z-index:2;color:var(--green-dark);background:var(--paper);border-radius:50%;position:absolute;top:38px;right:-21px;box-shadow:0 6px 18px #372d201a}.tone-1{color:var(--green);background:var(--green-soft)}.tone-2{color:var(--gold);background:var(--gold-soft)}.tone-3{color:#476d73;background:#e7eeec}.tone-4{color:#7244c7;background:#f0e9ff}.tone-5{color:#d9443f;background:#ffedeb}.tool-grid{grid-template-columns:repeat(5,minmax(0,1fr))}.tool-card{min-height:188px;padding:18px;overflow:hidden}.tool-green{background:linear-gradient(135deg,#edf8f49e,#f8fcfab3)}.tool-orange{background:linear-gradient(135deg,#fff3df9e,#fcf8f2b3)}.tool-amber{background:linear-gradient(135deg,#fff0d899,#fffaf2b3)}.tool-blue{background:linear-gradient(135deg,#eef6ff9e,#f8fbffb3)}.tool-purple{background:linear-gradient(135deg,#f4efff9e,#fbf9ffb3)}.tool-head{align-items:flex-start;gap:12px;display:flex}.tool-index{color:#fff;background:var(--green);border-radius:8px;flex:none;place-items:center;width:34px;height:34px;font-weight:820;display:inline-grid}.tool-head strong{font-size:17px;font-weight:780;display:block}.tool-head small{color:var(--muted);margin-top:4px;font-size:13px;font-weight:520;display:block}.tool-practice{flex-direction:column;align-items:center;gap:12px;margin-top:20px;display:flex}.tool-animation{place-items:center;width:100%;height:58px;display:grid}.voice-wave{place-items:center;width:min(176px,100%);height:48px;display:grid}.voice-wave svg{width:156px;height:46px;display:block;overflow:visible}.voice-wave path{fill:none;stroke-linecap:round;stroke-linejoin:round}.voice-wave-base{stroke:#087b6524;stroke-width:2px}.voice-wave-glow{stroke:#087b652e;stroke-width:8px;animation:1.28s ease-in-out infinite voice-glow}.voice-wave-front{stroke:#087b65db;stroke-width:3px;animation:1.28s ease-in-out infinite voice-pulse}.tool-practice .ant-btn{border-radius:999px;min-width:88px}.writing-demo{place-items:center;width:82px;height:66px;display:grid}.writing-demo svg{width:68px;height:68px;display:block;overflow:visible}.word-card-demo{background:#ffffffc7;border:1px solid #eec68699;border-radius:8px;width:120px;height:58px;position:relative;overflow:hidden;box-shadow:0 8px 18px #62431814}.word-card-slide{opacity:0;align-content:center;place-items:center;gap:2px;animation:5.4s ease-in-out infinite word-card-cycle;display:grid;position:absolute;inset:0;transform:translateY(10px)scale(.97)}.word-card-slide strong{color:#7a4b14;font-size:22px;line-height:1}.word-card-slide small{color:#7a4b149e;font-size:12px;font-weight:700}.slide-2{animation-delay:1.8s}.slide-3{animation-delay:3.6s}.listening-demo,.test-chart-demo{place-items:center;height:58px;display:grid}.listening-demo{transform:translateY(-12px)}.listening-demo svg{width:92px;height:72px;display:block;overflow:visible}.headphone-band,.headphone-cup{fill:none;stroke:#2464be;stroke-linecap:round;stroke-linejoin:round;stroke-width:6px}.headphone-cup{fill:#2464be14}.listen-wave{fill:none;stroke:#2464be9e;stroke-linecap:round;stroke-width:3px;opacity:0;transform-box:fill-box;transform-origin:50%;animation:1.8s ease-out infinite listen-ripple}.listen-wave-2{animation-delay:.32s}.listen-wave-3{animation-delay:.64s}.test-chart-demo svg{width:122px;height:72px;display:block;overflow:visible}.chart-grid,.chart-axis,.chart-line-track,.chart-line{fill:none;stroke-linecap:round;stroke-linejoin:round}.chart-grid{stroke:#7d51cf21;stroke-width:1.5px}.chart-axis{stroke:#7d51cf6b;stroke-width:3px}.chart-line-track{stroke:#7d51cf24;stroke-width:5px}.chart-line{stroke:#7d51cf;stroke-dasharray:1;stroke-dashoffset:1px;stroke-width:5px;animation:2.4s ease-in-out infinite chart-grow}@keyframes voice-pulse{0%,to{opacity:.76}45%{opacity:1}}@keyframes voice-glow{0%,to{opacity:.18}45%{opacity:.34}}@keyframes word-card-cycle{0%{opacity:0;transform:translateY(10px)scale(.97)}10%,30%{opacity:1;transform:translateY(0)scale(1)}42%,to{opacity:0;transform:translateY(-10px)scale(.97)}}@keyframes listen-ripple{0%{opacity:0;transform:scaleX(.68)}24%{opacity:.76}to{opacity:0;transform:scaleX(1.18)}}@keyframes chart-grow{0%{stroke-dashoffset:1px}54%,82%{stroke-dashoffset:0}to{stroke-dashoffset:1px}}.sample-boxes{justify-content:center;gap:12px;margin-top:24px;display:flex}.sample-boxes span{width:74px;height:54px;color:var(--ink);background:var(--glass-panel-soft);border:1px solid var(--paper-line);-webkit-backdrop-filter:blur(10px)saturate(1.06);border-radius:8px;place-items:center;font-size:24px;display:grid;box-shadow:0 8px 20px #372d2012}.tool-large-icon{color:#2464be;margin:22px auto 0;display:block}.tool-purple .tool-large-icon{color:#7d51cf}.teacher-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.teacher-card{background:var(--glass-panel-soft);grid-template-columns:72px 1fr;align-items:center;gap:16px;min-height:112px;padding:18px;display:grid}.teacher-avatar,.student-avatar{color:#fff;border-radius:50%;place-items:center;font-weight:820;display:grid}.teacher-avatar{object-fit:cover;border:3px solid #ffffffdb;width:64px;height:64px;box-shadow:0 8px 18px #20322b1a}.avatar-0{background:#3b927a}.avatar-1{background:#385c8f}.avatar-2{background:#8a6242}.avatar-3{background:#407692}.teacher-card p{color:#344740;margin:5px 0 4px;font-size:14px;font-weight:620}.teacher-card small{color:var(--muted);display:block}.teacher-card span{color:#4f625c;margin-top:7px;font-weight:760}.community-grid{grid-template-columns:1.15fr .85fr .95fr;align-items:stretch;gap:20px;margin-top:32px;display:grid}.community-card{background:#ffffffa3;padding:24px}.community-card h2{margin:0 0 16px;font-size:22px;font-weight:820}.community-actions{grid-template-columns:repeat(2,1fr);gap:18px 20px;margin-bottom:24px;display:grid}.community-actions span{color:var(--green);grid-template-columns:30px 1fr;gap:10px;font-size:15px;font-weight:760;display:grid}.community-actions small{color:var(--muted);grid-column:2;font-size:12px;font-weight:520}.section-heading.mini{align-items:center;margin-bottom:12px}.section-heading.mini h2{font-size:20px}.news-list,.student-list{gap:14px;margin:0;padding:0;list-style:none;display:grid}.news-list li{color:#344740;grid-template-columns:1fr auto;align-items:center;gap:16px;font-size:14px;display:grid}.news-list span:before{min-width:18px;height:18px;color:var(--green);text-align:center;content:attr(data-badge);background:var(--green-soft);border-radius:4px;margin-right:8px;padding:0 4px;font-size:11px;font-weight:760;display:inline-block}time{color:var(--muted);white-space:nowrap;font-size:12px}.student-marquee{height:134px;position:relative;overflow:hidden}.student-marquee:before,.student-marquee:after{z-index:1;pointer-events:none;content:"";height:28px;position:absolute;left:0;right:0}.student-marquee:before{background:linear-gradient(#ffffffe0,#fff0);top:0}.student-marquee:after{background:linear-gradient(#fff0,#ffffffe0);bottom:0}.student-list{animation:28s linear infinite student-scroll}.student-marquee:hover .student-list{animation-play-state:paused}.student-list li{color:#33463f;grid-template-columns:36px 1fr auto;align-items:center;gap:12px;font-size:14px;display:grid}.student-avatar{width:36px;height:36px;font-size:15px}.student-0{background:#2d7d6e}.student-1{background:#3b6696}.student-2{background:#9a674e}.student-3{background:#7c5e9d}.student-4{background:#b36a3d}.student-5{background:#3f7f9a}.student-list strong{color:var(--ink);display:block}@keyframes student-scroll{0%{transform:translateY(0)}to{transform:translateY(-50%)}}.partners{background:var(--glass-panel-soft);grid-template-columns:auto 1fr;align-items:center;gap:34px;margin-top:32px;padding:20px 28px;display:grid}.partners h2{margin:0;font-size:22px;font-weight:820}.partners div{grid-template-columns:repeat(5,minmax(0,1fr));gap:18px;display:grid}.partner-item{min-height:58px;color:var(--ink);border:1px solid var(--paper-line);-webkit-backdrop-filter:blur(8px)saturate(1.04);background:#fffcf475;border-radius:8px;justify-content:flex-start;align-items:center;gap:10px;padding:8px 10px;font-weight:760;display:inline-flex}.partner-logo{border:1px solid var(--paper-line);background:#fffcf494;border-radius:8px;flex:none;place-items:center;width:38px;height:38px;display:inline-grid}.partner-logo img{object-fit:contain;max-width:30px;max-height:30px}.partner-item strong,.partner-item small{display:block}.partner-item strong{color:var(--ink);font-size:14px;line-height:1.25}.partner-item small{color:var(--muted);margin-top:2px;font-size:12px;font-weight:560;line-height:1.25}.newsletter{background:linear-gradient(90deg,#e8f0eb94,#fffcf48a),#f3ead747;grid-template-columns:88px 1fr minmax(260px,420px) auto;align-items:center;gap:24px;margin-top:24px;padding:22px 26px;display:grid}.newsletter img{object-fit:cover;border-radius:8px;width:76px;height:76px}.newsletter h2{margin:0 0 8px;font-size:22px;font-weight:820}.newsletter p{color:var(--muted);margin:0;font-size:15px}.site-footer{border-top:1px solid var(--paper-line);grid-template-columns:1.6fr repeat(4,1fr);gap:36px;margin-top:34px;padding:36px 32px 20px;display:grid}.site-footer h3{margin:0 0 12px;font-size:15px;font-weight:780}.site-footer a,.site-footer p{color:#5b665e;margin:8px 0;font-size:14px;display:block}.site-footer .ant-btn{vertical-align:top;justify-content:center;align-items:center;height:28px;margin:8px 0 0;padding-inline:14px;line-height:1;display:inline-flex}.footer-brand p{margin-top:16px}.footer-brand .brand-logo{width:190px;height:56px}.site-record{color:var(--muted);text-align:center;padding:14px 0 28px;font-size:13px;line-height:1.8}.site-record p{margin:0}.site-record-links{white-space:nowrap;display:block}.site-record-line{white-space:nowrap;justify-content:center;align-items:center;display:inline-flex}.site-police-record{align-items:center;gap:5px;display:inline-flex}.site-police-record img{object-fit:contain;flex:none;width:16px;height:16px}.site-record-space{white-space:pre;display:inline-block}.site-record-links a{color:inherit;font:inherit;line-height:inherit;vertical-align:middle;align-items:center;display:inline-flex}@media (max-width:1180px){.top-nav{grid-template-columns:auto auto}.nav-links{order:3;grid-column:1/-1;justify-content:flex-start;padding-bottom:10px;overflow-x:auto}.nav-links a{padding:8px 0 12px}.nav-links a.active:after{bottom:4px}.nav-actions{justify-content:flex-end}.decor-mountain{width:min(var(--mountain-width), 24vw)}.course-grid,.tool-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.path-row{grid-template-columns:repeat(2,minmax(0,1fr))}.path-arrow{display:none}.teacher-grid,.community-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.community-card:first-child{grid-column:1/-1}}@media (max-width:860px){.top-nav{padding:12px 18px}.brand strong{font-size:18px}.nav-actions{gap:8px}.nav-auth-actions{gap:8px;width:188px}.nav-auth-placeholder{width:188px}.site-search{display:none!important}.hero{background:var(--hero-bg);min-height:360px}.hero-copy{padding-top:42px}.metrics-panel,.section-block,.community-grid,.partners,.newsletter,.site-footer,.site-record{width:min(100% - var(--content-gutter), 720px)}.metrics-panel{grid-template-columns:1fr;gap:10px}.metric-item{border-right:0;justify-content:flex-start;padding:8px 28px}.metric-item:last-child{grid-column:auto}.course-grid,.tool-grid,.teacher-grid,.community-grid,.partners,.newsletter,.site-footer{grid-template-columns:1fr}.partners div{grid-template-columns:repeat(2,minmax(0,1fr))}.newsletter{gap:16px}}@media (max-width:560px){.top-nav{flex-wrap:wrap;display:flex}.nav-actions{flex:100%;width:auto;min-width:0;max-width:calc(100vw - 36px)}.nav-actions .site-search{display:none!important}.nav-actions .ant-btn{flex:1;min-width:0}.nav-auth-actions{flex:1;width:auto;min-width:0}.nav-auth-placeholder{width:100%}.hero h1{font-size:30px}.hero-title-en{font-size:18px;line-height:1.18}.hero p{font-size:16px}.hero-actions{flex-direction:column;max-width:220px}@media (max-width:420px){.hero-title-en{font-size:16px}}.section-heading{flex-direction:column;align-items:flex-start}.section-heading p{margin:6px 0 0;display:block}.category-tabs{padding-bottom:4px;overflow-x:auto}.path-row,.community-actions,.partners div{grid-template-columns:1fr}}