*{box-sizing:border-box}:root{--orange:#f36b28;--orange-light:#f7901e;--text:#333;--muted:#777;--line:#dedede;--surface:#f1f1f1;--shadow:0 2px 10px #0000001f}html{scroll-behavior:smooth}body{min-width:320px;min-height:100vh;color:var(--text);-webkit-font-smoothing:antialiased;background:#fff;margin:0;font-family:Microsoft YaHei,PingFang SC,Arial,sans-serif;line-height:1.55}button,input{font:inherit}a,button{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}.container{width:min(1200px,100% - 40px);margin:0 auto}.site-shell{min-height:100vh;padding-top:80px;overflow:hidden}.views-count{color:#888;white-space:nowrap;align-items:center;gap:4px;font-size:13px;line-height:1.4;display:inline-flex}.views-count svg{fill:none;stroke:currentColor;stroke-width:1.6px;flex:none;width:15px;height:15px}.brand{color:#454545;white-space:nowrap;align-items:center;gap:10px;font-size:20px;font-weight:700;display:inline-flex}.brand svg{fill:none;stroke:currentColor;stroke-width:1.8px;stroke-linejoin:round;width:25px;height:25px}.brand span{font-weight:700}.app-header{z-index:100;background:#fffffffa;border-bottom:1px solid #ededed;width:100%;height:80px;position:fixed;top:0;left:0;box-shadow:0 2px 10px #0000000a}.header-inner{justify-content:space-between;align-items:center;gap:28px;width:min(1280px,100% - 40px);height:100%;display:flex}.header-nav-wrap{-moz-column-gap:28px;flex:1;grid-template-columns:minmax(0,1fr) auto;align-items:center;column-gap:28px;display:grid}.main-nav{justify-self:center;align-items:stretch;gap:2px;height:80px;display:flex}.main-nav a{color:#555;white-space:nowrap;align-items:center;padding:0 14px;font-size:16px;display:flex;position:relative}.main-nav a.active,.main-nav a:hover{color:var(--orange)}.main-nav a.active:after{content:"";background:var(--orange);border-radius:4px 4px 0 0;height:4px;position:absolute;bottom:0;left:14px;right:14px}.header-actions{align-items:center;gap:10px;display:flex}.menu-toggle,.outline-button{color:#666;cursor:pointer;background:0 0;border:0}.language-button{color:#666;white-space:nowrap;cursor:pointer;background:#f6f6f6;border:1px solid #e3e3e3;border-radius:999px;flex:none;align-items:center;gap:6px;height:34px;padding:0 12px;font-size:13px;transition:border-color .2s,color .2s,background .2s;display:inline-flex}.language-button:hover{color:var(--orange);background:#fff6f1;border-color:#f36b288c}.language-icon{width:16px;height:16px}.language-icon,.language-swap{fill:none;stroke:currentColor;stroke-width:1.6px;flex:none}.language-swap{stroke-linecap:round;stroke-linejoin:round;opacity:.65;width:15px;height:15px}.outline-button{white-space:nowrap;border:1px solid #888;border-radius:5px;flex:none;min-width:64px;padding:0 15px}.primary-button{color:#fff;background:linear-gradient(90deg,var(--orange),var(--orange-light));cursor:pointer;border:0;border-radius:5px;transition:transform .2s,box-shadow .2s}.primary-button:hover{transform:translateY(-1px);box-shadow:0 5px 13px #f36b2840}.primary-button.small{white-space:nowrap;flex:none;min-width:64px;padding:2px 15px}a.outline-button,a.primary-button{cursor:pointer;align-items:center;text-decoration:none;display:inline-flex}a.outline-button:hover{border-color:var(--orange);color:var(--orange)}.header-tools{align-items:center;gap:8px;margin-left:auto;display:none}.menu-toggle{width:38px;height:38px;padding:8px;display:none}.menu-toggle span{background:#444;border-radius:2px;height:2px;margin:5px 0;transition:transform .2s,opacity .2s;display:block}.menu-toggle.open span:first-child{transform:translateY(7px)rotate(45deg)}.menu-toggle.open span:nth-child(2){opacity:0}.menu-toggle.open span:nth-child(3){transform:translateY(-7px)rotate(-45deg)}.auth-overlay{z-index:300;background:#14181e7a;justify-content:center;align-items:center;padding:24px 0;display:flex;position:fixed;inset:0;overflow-y:auto}.auth-modal{background:#fff;border-radius:10px;width:500px;max-width:calc(100% - 28px);padding:34px 54px 30px;position:relative;box-shadow:0 20px 55px #00000038}.auth-modal h2{color:#333;text-align:center;margin:0 0 20px;font-size:27px;font-weight:500}.auth-close{color:#777;cursor:pointer;background:0 0;border:0;border-radius:50%;place-items:center;width:30px;height:30px;padding:6px;display:grid;position:absolute;top:14px;right:16px}.auth-close:hover{color:#333;background:#f2f2f2}.auth-close svg{fill:none;stroke:currentColor;stroke-width:1.7px;stroke-linecap:round;width:18px;height:18px}.auth-form{gap:13px}.auth-form,.auth-form label{flex-direction:column;display:flex}.auth-form label{color:#333;gap:6px;font-size:15px}.auth-form input{color:#333;background:#fff;border:1px solid #777;border-radius:8px;outline:0;width:100%;height:38px;padding:0 12px}.auth-form input:focus{border-color:var(--orange);box-shadow:0 0 0 3px #f36b281f}.auth-submit{color:#fff;cursor:pointer;background:linear-gradient(90deg,#ef5539,#f79316);border:0;border-radius:8px;width:100%;height:43px;margin-top:10px;font-size:19px}.auth-switch{text-align:center;margin:15px 0 0;font-size:14px}.auth-switch button{color:var(--orange);cursor:pointer;background:0 0;border:0;padding:0}.auth-submit:disabled{opacity:.6;cursor:not-allowed}.auth-code-row{gap:10px;display:flex}.auth-code-row input{flex:1;width:auto}.auth-send-code{border:1px solid var(--orange);height:38px;color:var(--orange);white-space:nowrap;cursor:pointer;background:#fff;border-radius:8px;flex-shrink:0;padding:0 13px;font-size:14px}.auth-send-code:hover:not(:disabled){background:#fff7f2}.auth-send-code:disabled{color:#aaa;cursor:not-allowed;border-color:#ccc}.auth-feedback{margin:0;font-size:13px}.auth-feedback.error{color:#d5493c}.auth-feedback.success{color:#27965a}.auth-switch-divider{color:#ccc;margin:0 8px}.hero-section{background:#35261c;width:100%}.hero-swiper{height:420px}.hero-swiper img{-o-object-fit:cover;object-fit:cover;-o-object-position:center;object-position:center;width:100%;height:420px}.hero-swiper .swiper-button-next,.hero-swiper .swiper-button-prev{color:#0000;background:0 0;width:48px;height:70px}.hero-swiper .swiper-button-next:after,.hero-swiper .swiper-button-prev:after{display:none}.hero-swiper .swiper-button-prev{left:max(20px,50% - 620px)}.hero-swiper .swiper-button-next{right:max(20px,50% - 620px)}.hero-swiper .swiper-pagination.swiper-pagination-horizontal{background:#19120dbd;border-radius:15px;width:auto;padding:0 15px;bottom:10px;left:50%;transform:translate(-50%)}.hero-swiper .swiper-pagination-bullet{opacity:.7;background:#fff;width:8px;height:8px;margin:0 4px!important}.hero-swiper .swiper-pagination-bullet-active{background:var(--orange);opacity:1}.search-section{background:#efefef;padding:26px 0}.search-form{justify-content:center;align-items:center;gap:20px;display:flex}.search-form input{color:#555;width:min(640px,75%);height:47px;box-shadow:var(--shadow);background:#fff;border:0;border-radius:24px;outline:0;padding:0 30px}.search-form input:focus{box-shadow:0 0 0 2px #f36b2838,var(--shadow)}.search-button{width:125px;height:45px;font-weight:700}.section{padding:45px 0 48px}.section-muted{background:var(--surface)}.section-heading{justify-content:space-between;align-items:center;margin-bottom:18px;display:flex}.section-heading h2,.standalone-heading{margin:0;font-size:28px;font-weight:500}.section-heading a{color:#777;font-size:14px}.standalone-heading{margin-bottom:25px}.book-grid{grid-template-columns:repeat(6,minmax(0,1fr));gap:22px;display:grid}.book-card{text-align:center;width:100%;min-width:0;box-shadow:var(--shadow);background:#fff;border-radius:14px;flex-direction:column;padding:13px 13px 10px;display:flex}.book-card img{aspect-ratio:9/16;-o-object-fit:cover;object-fit:cover;border-radius:10px;width:100%}.book-card h3{white-space:nowrap;text-overflow:ellipsis;min-width:0;margin:7px 0 0;font-size:14px;line-height:1.4;overflow:hidden}.book-card p{color:#555;margin:1px 0 5px;font-size:12px}.book-card button{color:#555;cursor:pointer;background:#fff;border:1px solid #777;border-radius:13px;width:78%;height:24px;margin:0 auto;font-size:12px}.book-card button:hover{border-color:var(--orange);color:var(--orange)}.reviews-section{padding-top:55px;padding-bottom:62px}.review-panel{box-shadow:var(--shadow);background:#fff;border-radius:15px;padding:15px 45px}.review-item{border-bottom:1px solid #bbb;grid-template-columns:112px 1fr;gap:30px;padding:18px 0;display:grid}.review-item:last-child{border-bottom:0}.review-item>img{-o-object-fit:cover;object-fit:cover;width:112px;height:148px}.review-content{align-self:center;min-width:0}.review-title-row{justify-content:space-between;align-items:center;gap:20px;display:flex}.review-title-row h3{margin:0 0 3px;font-size:19px}.review-title-row p{color:#555;margin:0;font-size:14px}.stars{color:#f0643c;letter-spacing:2px;flex:none;font-size:20px}.review-copy{color:#444;margin:18px 0 0;font-size:13px;line-height:1.75}.lectures-section{padding-top:48px;padding-bottom:55px}.lecture-swiper .swiper-slide{padding:12px 5px}.lecture-swiper .swiper-button-next,.lecture-swiper .swiper-button-prev{display:none}.lecture-card{background:#fff;border-radius:14px;padding:14px 14px 17px;box-shadow:0 4px 16px #00000024}.lecture-card>img{aspect-ratio:16/9;-o-object-fit:cover;object-fit:cover;border-radius:14px;width:100%}.lecture-details{padding:13px 3px 8px}.lecture-details p{margin:2px 0;font-size:16px}.lecture-details strong{font-weight:500}.lecture-button{min-width:124px;height:31px;margin:12px auto 0;display:block}.insights-section{padding-top:50px;padding-bottom:65px}.content-tabs{background:#fff;grid-template-columns:repeat(3,1fr);width:560px;max-width:100%;margin:0 auto 52px;display:grid}.content-tabs button{color:#555;cursor:pointer;background:#fff;border:0;height:48px;position:relative}.content-tabs button+button:before{content:"";background:#777;width:1px;height:26px;position:absolute;top:11px;left:0}.content-tabs button.active{color:#fff;background:var(--orange)}.content-tabs button.active+button:before,.content-tabs button.active:before{display:none}.article-grid{grid-template-columns:repeat(3,1fr);gap:24px;display:grid}.article-card{background:#fff;min-width:0;padding:32px 24px 27px}.article-card h3{margin:0 0 18px;font-size:19px;font-weight:600}.article-card p{color:#555;margin:0 0 18px;font-size:13px;line-height:2}.article-card img{aspect-ratio:316/172;-o-object-fit:cover;object-fit:cover;width:100%;margin-bottom:30px}.article-card a{color:#777;border-bottom:1px solid #777;justify-content:space-between;gap:10px;padding:12px 4px;font-size:16px;display:flex}.article-card a span{font-size:14px}.app-footer{color:#fff;background:#6a6a6a;padding:35px 0 0}.footer-grid{grid-template-columns:2fr 1.2fr 2fr;gap:80px;min-height:180px;padding-top:5px;display:grid}.footer-brand{color:#fff;align-self:start}.footer-links{flex-direction:column;align-items:flex-start;display:flex}.footer-links h3,.subscribe label{margin:0 0 4px;font-size:18px;font-weight:400}.footer-links a{color:#eee;font-size:13px;line-height:1.65}.email-field{background:#fff;border-radius:6px;align-items:center;width:320px;max-width:100%;height:34px;margin-top:4px;display:flex;overflow:hidden}.email-field input{border:0;outline:0;flex:1;min-width:0;height:100%;padding:0 12px;font-size:12px}.email-field button{cursor:pointer;background:#fff;border:0;width:45px;height:100%}.email-field svg{fill:none;stroke:#777;stroke-width:1.3px;width:22px;height:22px}.copyright{text-align:center;border-top:1px solid #bbb;padding:14px 0 20px;font-size:11px}@media (width<=1150px){.app-header{height:70px}.site-shell{padding-top:70px}.header-inner{gap:20px}.header-tools{display:flex}.menu-toggle{display:block}.header-nav-wrap{background:#fff;flex-direction:column;align-items:stretch;gap:0;padding:14px 16px 18px;display:none;position:absolute;top:70px;left:0;right:0;box-shadow:0 8px 15px #0000001f}.header-nav-wrap.open{display:flex}.main-nav{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;width:100%;max-width:560px;height:auto;margin:0 auto;display:grid}.main-nav a{background:#fafafa;border:1px solid #ececec;border-radius:8px;justify-content:center;height:42px;padding:0 12px;font-size:15px}.main-nav a:first-child{grid-column:1/-1}.main-nav a:hover{background:#fffaf7;border-color:#f36b2866}.main-nav a.active{color:var(--orange);background:#fff6f1;border-color:#f36b2873;font-weight:600}.main-nav a.active:after{display:none}.header-actions{border-top:1px solid #f0f0f0;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;width:100%;max-width:560px;margin:14px auto 0;padding-top:14px;display:grid}.header-actions>:not(.language-button){justify-content:center;width:100%;height:40px;font-size:15px}.header-nav-wrap .language-button{display:none}.book-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}@media (width>=781px) and (width<=1150px){.main-nav{grid-template-columns:repeat(3,minmax(0,1fr))}.header-actions,.main-nav{max-width:760px}}@media (width<=780px){.container{width:min(100% - 28px,1200px)}.brand{min-width:0;font-size:17px}.brand span{text-overflow:ellipsis;overflow:hidden}.brand svg{width:22px}.hero-swiper,.hero-swiper img{height:270px}.search-section{padding:18px 0}.search-form{gap:10px}.search-form input{flex:1;width:auto;min-width:0;height:42px;padding:0 18px}.search-button{width:88px;height:41px}.section{padding:35px 0 40px}.section-heading h2,.standalone-heading{font-size:22px}.book-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:15px}.review-panel{padding:8px 18px}.review-item{grid-template-columns:86px 1fr;gap:15px;padding:18px 0}.review-item>img{width:86px;height:114px}.review-title-row{flex-direction:column;align-items:flex-start;gap:6px}.stars{font-size:15px}.review-copy{-webkit-line-clamp:4;-webkit-box-orient:vertical;margin-top:10px;display:-webkit-box;overflow:hidden}.lecture-card{min-height:0}.content-tabs{margin-bottom:25px}.article-grid{grid-template-columns:1fr}.article-card p{min-height:0}.footer-grid{grid-template-columns:1fr 1fr;gap:30px;min-height:0;padding-bottom:28px}.subscribe{grid-column:1/-1}}@media (width<=480px){.hero-swiper,.hero-swiper img{height:220px}.hero-swiper .swiper-button-next,.hero-swiper .swiper-button-prev{display:none}.section-heading h2,.standalone-heading{font-size:20px}.book-card{padding:9px}.review-item{grid-template-columns:68px 1fr}.review-item>img{width:68px;height:90px}.review-title-row h3{font-size:16px}.review-copy{grid-column:1/-1}.content-tabs button{font-size:13px}.footer-grid{grid-template-columns:1fr}.subscribe{grid-column:auto}.copyright{padding-left:10px;padding-right:10px}.auth-modal{padding:34px 24px 27px}.auth-modal h2{font-size:24px}}.submit-spinner[data-v-5a2f2428]{vertical-align:-3px;border:2px solid #ffffff59;border-top-color:#fff;border-radius:50%;width:18px;height:18px;margin-right:8px;animation:.7s linear infinite submit-spin-5a2f2428;display:inline-block}@keyframes submit-spin-5a2f2428{to{transform:rotate(1turn)}}.subscribe-msg[data-v-4d7514d2]{margin:6px 0 0;font-size:13px}.subscribe-msg.success[data-v-4d7514d2]{color:#52c41a}.subscribe-msg.error[data-v-4d7514d2]{color:#ef593c}