:root{--ink:#101522;--muted:#566173;--subtle:#798296;--paper:#f7f8fc;--white:#fff;--primary:#6751e7;--primary-dark:#4935bd;--highlight:#f3cb6c;--border:#e3e6f0;--mist:#eff1fa;--shadow:0 22px 65px rgba(16,21,34,.08);--round:24px;--max:1190px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:90px}body{margin:0;font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.8;-webkit-font-smoothing:antialiased}img{display:block;max-width:100%;height:auto}a{color:inherit;text-decoration:none}button{font:inherit}a:focus-visible,button:focus-visible{outline:3px solid #edb337;outline-offset:4px}p,h1,h2,h3,h4{margin-top:0}p{color:var(--muted)}h1,h2,h3{line-height:1.27;letter-spacing:-.045em}h1{font-size:clamp(2.3rem,4.8vw,4.9rem);font-weight:850}h2{font-size:clamp(1.85rem,3vw,3rem);font-weight:780}h3{font-size:1.3rem}ul,ol{padding-left:1.3em}li{margin-bottom:.4em}::selection{background:#e6e0ff;color:#201566}.container{max-width:var(--max);margin:0 auto;padding-left:28px;padding-right:28px}.skip-link{position:absolute;left:12px;top:-100px;padding:10px 18px;background:#fff;z-index:100}.skip-link:focus{top:10px}.site-header{position:relative;z-index:10;background:rgba(255,255,255,.96);border-bottom:1px solid var(--border)}.header-inner{max-width:1340px;padding:0 32px;margin:auto;min-height:84px;display:flex;align-items:center;gap:36px;justify-content:space-between}.brand{display:inline-flex;align-items:center;gap:12px;white-space:nowrap}.brand-mark,.footer-logo{font-size:32px;font-weight:950;letter-spacing:-.1em;line-height:1}.brand-mark{width:50px;height:50px;display:grid;place-items:center;background:var(--ink);color:#fff;border-radius:17px}.brand-mark span,.footer-logo span{color:var(--highlight);font-size:15px;vertical-align:top}.brand-text{display:flex;flex-direction:column;gap:0}.brand-text strong{font-size:19px;letter-spacing:.04em;line-height:1.3}.brand-text small{font-size:10px;letter-spacing:.18em;color:var(--subtle)}.desktop-nav{display:flex;align-items:center;gap:clamp(12px,2vw,32px);font-weight:650;font-size:14px}.desktop-nav a{position:relative;padding:27px 0;white-space:nowrap}.desktop-nav a:hover,.desktop-nav [aria-current=page]{color:var(--primary)}.desktop-nav a:after{content:'';height:3px;background:var(--primary);position:absolute;left:0;right:100%;bottom:19px;transition:right .25s}.desktop-nav a:hover:after,.desktop-nav [aria-current=page]:after{right:0}.menu-toggle{display:none;border:1px solid var(--border);border-radius:13px;background:#fff;width:46px;height:44px;align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer}.menu-toggle span{height:2px;width:19px;background:var(--ink);border-radius:3px}.mobile-nav{display:none}.eyebrow{display:block;text-transform:uppercase;letter-spacing:.17em;font-size:12px;font-weight:800;color:var(--primary);margin-bottom:17px}.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:51px;padding:10px 24px;border-radius:13px;font-weight:750;font-size:14px;transition:transform .2s,background .2s,border-color .2s}.button:hover{transform:translateY(-2px)}.button-primary{background:var(--primary);color:white}.button-primary:hover{background:var(--primary-dark)}.button-outline{border:1px solid #bbc0d1;background:transparent}.button-outline:hover{border-color:var(--primary);color:var(--primary)}.text-arrow{font-weight:800;color:var(--primary);display:inline-flex;border-bottom:2px solid currentColor;padding-bottom:3px}.text-arrow:hover{color:var(--primary-dark)}.home-hero{max-width:1390px;margin:auto;display:grid;grid-template-columns:1fr .87fr;min-height:570px;align-items:stretch;background:linear-gradient(125deg,#fff 0%,#fff 45%,#f0eeff 100%);overflow:hidden}.hero-copy{padding:clamp(58px,8vw,106px) 7vw clamp(55px,6vw,80px) max(34px,calc((100vw - 1190px)/2 + 28px));align-self:center}.hero-copy h1{max-width:700px;margin-bottom:24px}.hero-copy p{font-size:17px;max-width:600px;line-height:1.95}.hero-actions{display:flex;flex-wrap:wrap;gap:13px;margin:32px 0}.hero-notes{display:flex;gap:16px;font-size:12px;color:var(--subtle);letter-spacing:.1em}.hero-notes span:before{content:'✦';color:var(--primary);padding-right:7px}.hero-image-wrap{min-width:0;min-height:530px;position:relative;isolation:isolate;background:linear-gradient(145deg,#c8c0fc,#8f86d8);overflow:hidden}.hero-image-wrap:before{content:'';position:absolute;inset:7% 5% 7% -30%;border:2px solid rgba(255,255,255,.65);border-radius:50%;transform:rotate(-24deg);pointer-events:none;z-index:1}.hero-image{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}.hero-image-label{position:absolute;right:6%;bottom:8%;padding:16px 26px;background:rgba(16,21,34,.88);border:1px solid #ffffff30;border-radius:15px;color:#fff;display:flex;flex-direction:column;gap:3px;z-index:2}.hero-image-label span{font-size:10px;letter-spacing:.22em;color:#ddd6ff}.hero-image-label strong{font-size:19px}.spotlight-section,.paths-section,.glossary-section,.workflow-section,.curriculum-section,.comparison-section,.steps-section{padding-top:94px;padding-bottom:96px}.section-heading{margin-bottom:36px;max-width:730px}.section-heading h2{margin-bottom:10px}.section-heading p{margin:0;font-size:16px}.genre-preview{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.genre-tile{padding:31px 23px 35px;border:1px solid var(--border);border-radius:21px;background:#fff;position:relative;min-height:282px;display:flex;flex-direction:column}.genre-tile:nth-child(2){background:#f3f0ff}.genre-tile:nth-child(3){background:#fcf6e8}.genre-tile:nth-child(4){background:#ebf1f9}.genre-index{font-weight:800;font-size:12px;color:var(--subtle);margin-bottom:30px}.small-pill{font-size:11px;font-weight:800;letter-spacing:.06em;color:var(--primary)}.genre-tile h3{margin:9px 0}.genre-tile p{font-size:13px;line-height:1.85;margin:0}.section-more{margin-top:26px;text-align:right}.section-more a{border-bottom:2px solid var(--primary);font-weight:800;color:var(--primary)}.feature-strip{background:#141927;color:#fff;padding:0}.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:8%;align-items:center}.feature-media{min-height:490px;position:relative;overflow:hidden}.feature-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}.feature-copy{padding:66px 0}.feature-copy h2{max-width:550px}.feature-copy p,.feature-copy li{color:#c0c6d7}.feature-copy li{padding-left:5px}.feature-copy .text-arrow{color:var(--highlight);margin-top:19px}.feature-copy .eyebrow{color:var(--highlight)}.path-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.route-card{display:flex;flex-direction:column;gap:12px;background:#fff;border:1px solid var(--border);border-radius:24px;overflow:hidden;padding:0 25px 24px;transition:transform .25s,box-shadow .25s}.route-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}.route-card .route-art{height:214px;width:calc(100% + 50px);max-width:none;object-fit:cover;margin:0 -25px 11px;background:#eeeaff}.route-tag{font-size:12px;font-weight:850;color:var(--primary)}.route-card strong{font-size:21px;line-height:1.35}.route-card>span:not(.route-tag):not(.route-cta){font-size:14px;color:var(--muted);line-height:1.9}.route-cta{font-size:13px;font-weight:850;margin-top:auto;padding-top:14px;display:flex;justify-content:space-between;color:var(--primary)}.home-bottom{display:grid;grid-template-columns:.7fr 1.3fr;gap:90px;padding-bottom:110px;align-items:start}.home-bottom h2{max-width:400px}.term-mini{margin:0;display:grid;grid-template-columns:1fr 1fr;gap:12px}.term-mini>div{background:#fff;padding:20px;border:1px solid var(--border);border-radius:15px}.term-mini dt{font-weight:800;margin-bottom:7px}.term-mini dd{margin:0;font-size:13px;line-height:1.85;color:var(--muted)}.breadcrumbs{display:flex;align-items:center;gap:9px;font-size:12px;color:var(--subtle);margin:12px 0 42px}.breadcrumbs a:hover{text-decoration:underline}.page-top{padding-top:27px;padding-bottom:35px}.section-intro{max-width:930px}.section-intro h1{font-size:clamp(2.3rem,4.1vw,4.1rem);max-width:940px}.lead{font-size:17px;line-height:2;max-width:780px}.recommendation-layout{display:grid;grid-template-columns:205px minmax(0,1fr);gap:60px;padding-bottom:60px}.sticky-index{position:sticky;align-self:start;top:35px;border-top:4px solid var(--ink);padding-top:17px}.sticky-index h2{font-size:18px}.sticky-index nav{display:flex;flex-direction:column;gap:5px;margin-top:19px}.sticky-index nav a{font-size:14px;padding:9px 12px;border-left:2px solid var(--border);color:var(--muted)}.sticky-index nav a:hover,.sticky-index nav a:focus-visible{color:var(--primary);border-color:var(--primary);background:#eeeafb}.sticky-index p{font-size:12px;margin-top:28px;line-height:1.85}.recommendation-feed{display:flex;flex-direction:column;gap:56px}.genre-detail{background:#fff;border:1px solid var(--border);border-radius:24px;overflow:hidden;scroll-margin-top:40px}.genre-cover{position:relative;height:225px;background:linear-gradient(130deg,#efeaff,#d8d9ee);overflow:hidden}.genre-cover img{width:100%;height:100%;object-fit:cover}.genre-cover>span{position:absolute;bottom:17px;left:20px;background:#fff;padding:6px 14px;font-size:12px;border-radius:30px;font-weight:800}.genre-body{padding:36px 44px 39px}.genre-body h2{font-size:clamp(1.7rem,2.4vw,2.5rem);margin-bottom:14px}.genre-body .detail-lead{font-size:18px;color:var(--ink);font-weight:650}.genre-body p{font-size:15px}.genre-body .advice{background:var(--mist);padding:18px 20px;border-left:3px solid var(--primary);border-radius:7px}.genre-body .advice strong{color:var(--ink)}.genre-body h3{font-size:16px;margin:25px 0 7px}.genre-body li{font-size:14px;color:var(--muted)}.ending-note{background:var(--mist);border-radius:24px;padding-top:40px;padding-bottom:44px;margin-top:0;margin-bottom:70px}.ending-note h2{font-size:30px}.ending-note p{max-width:800px}.related{max-width:var(--max);padding:44px 28px 94px;margin:auto;border-top:1px solid var(--border)}.related h2{font-size:22px;margin-bottom:20px}.related-links{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.related-links a{border:1px solid var(--border);border-radius:12px;background:#fff;padding:18px;display:flex;justify-content:space-between;gap:12px;font-size:14px;font-weight:700}.related-links a:hover{border-color:var(--primary);color:var(--primary)}.watch-feature,.ai-opening,.learning-opening,.comparison-hero{display:grid;grid-template-columns:1fr 1fr;gap:9%;align-items:center;padding-top:35px;padding-bottom:50px}.watch-feature h2,.learning-opening h2,.ai-opening h2,.comparison-hero h2{font-size:clamp(1.8rem,2.8vw,2.9rem)}.watch-feature img,.ai-opening img,.learning-opening img,.comparison-hero img{width:100%;max-height:400px;object-fit:cover;border-radius:24px}.note-sample{margin-top:25px;border:1px solid var(--border);background:#fff;border-radius:18px;max-width:440px;padding:19px 22px;box-shadow:var(--shadow)}.note-sample>span{font-size:12px;color:var(--primary);font-weight:850}.note-sample div{display:flex;gap:20px;border-top:1px solid var(--border);margin-top:9px;padding-top:9px;font-size:13px}.note-sample div strong{min-width:45px}.note-sample div span{color:var(--muted)}.steps-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:18px}.step-card{grid-column:span 2;background:#fff;border:1px solid var(--border);border-radius:21px;padding:28px;display:flex;flex-direction:column}.step-card:nth-child(4),.step-card:nth-child(5){grid-column:span 3}.step-number{font-size:32px;font-weight:850;letter-spacing:-.05em;color:var(--primary);margin-bottom:26px}.step-card h3{font-size:20px}.step-card p{font-size:14px;line-height:1.9}.step-tip{padding-top:16px;margin-top:auto;border-top:1px solid var(--border);font-size:13px;color:#4034a8;font-weight:650}.glossary-section{padding-top:0}.glossary-list{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.glossary-list>div{background:#fff;border-top:4px solid var(--primary);padding:23px 20px;min-height:175px}.glossary-list h3{font-size:17px}.glossary-list p{font-size:13px}.comparison-visual img{max-height:370px}.comparison-copy{padding:10px 0}.compare-stack{border-top:1px solid #d4d9e6}.compare-row{display:grid;grid-template-columns:100px 1fr;gap:25px;border-bottom:1px solid #d4d9e6;padding:34px 0}.compare-number{color:var(--primary);font-size:34px;font-weight:850;line-height:1.3}.compare-content h3{font-size:23px;margin-bottom:18px}.compare-columns{display:grid;grid-template-columns:1fr 1fr;gap:30px}.compare-columns p{margin-bottom:12px}.compare-take{background:#eae7fa;border-radius:10px;padding:12px 18px;color:#3f369a;font-size:14px;margin:5px 0 0}.reading-panel{padding-top:44px;padding-bottom:50px;margin-bottom:80px;background:#171b29;border-radius:25px;color:#fff}.reading-panel p{color:#bec5d9;max-width:780px}.reading-panel .eyebrow,.reading-panel .text-arrow{color:var(--highlight)}.ai-opening img{max-height:460px}.workflow-list{position:relative;max-width:940px;margin:auto}.workflow-list:before{content:'';position:absolute;left:29px;top:45px;bottom:75px;width:2px;background:#d4cef7}.workflow-item{display:grid;grid-template-columns:60px 1fr;gap:28px;margin-bottom:23px;position:relative}.workflow-no{height:60px;width:60px;border-radius:20px;background:var(--primary);display:grid;place-items:center;font-size:20px;font-weight:850;color:white}.workflow-item>div{background:#fff;border:1px solid var(--border);padding:28px 33px;border-radius:19px}.workflow-item h3{font-size:23px}.workflow-item p{font-size:15px}.risk-note{display:grid;grid-template-columns:80px 1fr;gap:12px;background:#f7f4e8;border-radius:10px;padding:14px 18px;font-size:13px;color:#625129}.ethics-panel{display:grid;grid-template-columns:.8fr 1fr;gap:50px;background:#e9eafb;border-radius:24px;padding-top:34px;padding-bottom:34px;align-items:center;margin-bottom:100px}.ethics-panel img{max-height:370px;width:100%;object-fit:cover;border-radius:17px}.curriculum{display:grid;grid-template-columns:repeat(6,1fr);gap:17px}.curriculum-card{grid-column:span 2;display:flex;flex-direction:column;border:1px solid var(--border);border-radius:18px;padding:26px;background:#fff}.curriculum-card:nth-child(4),.curriculum-card:nth-child(5){grid-column:span 3}.curriculum-stage{font-size:12px;color:var(--primary);font-weight:850;margin-bottom:20px}.curriculum-card h3{font-size:22px}.curriculum-card>p{font-size:14px}.checkpoint{border-left:3px solid var(--primary);padding-left:13px;margin-top:auto}.checkpoint strong{font-size:13px}.checkpoint p{font-size:13px;margin:4px 0}.skill-tag{margin-top:18px;font-size:12px;color:#6b6093}.practice-section{display:grid;grid-template-columns:1fr 1fr;gap:9%;align-items:center;padding-bottom:85px}.practice-section img{border-radius:22px;max-height:470px;width:100%;object-fit:cover}.practice-section li{font-size:14px;color:var(--muted);margin-bottom:8px}.about-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;padding-bottom:110px}.about-grid article{background:#fff;border:1px solid var(--border);border-radius:20px;padding:35px}.about-grid h2{font-size:24px}.about-grid p{font-size:14px}.about-grid a{color:var(--primary);text-decoration:underline}.site-footer{background:#101522;color:#fff}.footer-inner{max-width:var(--max);margin:auto;padding:72px 28px 56px;display:grid;grid-template-columns:1fr 1fr;gap:90px}.footer-logo{font-size:40px}.footer-inner>div:first-child p{color:#b6bdcc;max-width:440px;font-size:14px}.footer-inner>div:first-child .fineprint{font-size:12px;color:#8e99ad}.footer-sitemap{display:grid;grid-template-columns:1fr 1fr;gap:40px}.footer-sitemap>div{display:flex;flex-direction:column;align-items:flex-start;gap:12px}.footer-sitemap strong{font-size:14px;margin-bottom:7px}.footer-sitemap a{font-size:13px;color:#b5bed3}.footer-sitemap a:hover{color:#fff;text-decoration:underline}.footer-bottom{max-width:var(--max);margin:auto;padding:22px 28px;border-top:1px solid #ffffff22;display:flex;justify-content:space-between;font-size:12px;color:#a7afbe}.footer-bottom a:hover{color:white}
@media (max-width:1100px){.header-inner{gap:17px}.desktop-nav{gap:14px;font-size:12px}.hero-copy{padding-left:40px}.genre-preview{grid-template-columns:repeat(2,1fr)}.genre-tile{min-height:238px}.glossary-list{grid-template-columns:repeat(2,1fr)}}
@media (max-width:820px){.desktop-nav{display:none}.menu-toggle{display:flex}.header-inner{min-height:70px;padding:0 20px}.mobile-nav{display:none;position:absolute;left:0;right:0;top:100%;background:#fff;padding:15px 20px 22px;box-shadow:0 22px 36px #10152220;grid-template-columns:1fr 1fr;gap:8px}.mobile-nav.is-open{display:grid}.mobile-nav a{padding:13px;background:var(--paper);border-radius:11px;display:flex;flex-direction:column}.mobile-nav a strong{font-size:14px}.mobile-nav a small{font-size:11px;color:var(--subtle)}.home-hero{grid-template-columns:1fr}.hero-copy{padding:65px 30px}.hero-image-wrap{min-height:310px}.hero-image{object-position:center 32%}.feature-grid{gap:28px}.feature-media{min-height:370px}.path-grid{gap:13px}.route-card{padding-left:18px;padding-right:18px}.route-card .route-art{width:calc(100% + 36px);margin-left:-18px;margin-right:-18px;height:165px}.route-card strong{font-size:18px}.home-bottom{gap:35px}.recommendation-layout{grid-template-columns:1fr}.sticky-index{position:static}.sticky-index nav{flex-direction:row;flex-wrap:wrap}.sticky-index nav a{border:1px solid var(--border);border-radius:100px}.recommendation-feed{gap:24px}.about-grid{grid-template-columns:1fr}.about-grid article{padding:28px}}
@media (max-width:640px){.container{padding-left:19px;padding-right:19px}.hero-copy{padding:53px 21px 60px}.hero-copy h1{font-size:clamp(2.25rem,10vw,3.25rem)}.hero-copy p{font-size:15px}.hero-actions{flex-direction:column;align-items:stretch;max-width:350px}.hero-notes{flex-wrap:wrap;font-size:11px;gap:9px}.hero-image-wrap{min-height:255px}.hero-image-label{padding:10px 15px}.hero-image-label strong{font-size:15px}.spotlight-section,.paths-section,.glossary-section,.workflow-section,.curriculum-section,.comparison-section,.steps-section{padding-top:64px;padding-bottom:68px}.genre-preview,.path-grid,.term-mini,.home-bottom,.feature-grid,.watch-feature,.ai-opening,.learning-opening,.comparison-hero,.practice-section,.ethics-panel,.footer-inner{grid-template-columns:1fr}.genre-tile{min-height:unset;padding:24px}.genre-index{margin-bottom:15px}.feature-media{min-height:260px;order:2}.feature-copy{padding:45px 0 25px}.path-grid{gap:18px}.route-card .route-art{height:190px}.home-bottom{gap:21px;padding-bottom:60px}.page-top{padding-bottom:20px}.breadcrumbs{margin-bottom:30px}.section-intro h1{font-size:2.25rem}.lead{font-size:15px}.genre-body{padding:28px 21px}.genre-cover{height:175px}.related{padding:35px 19px 65px}.related-links,.glossary-list{grid-template-columns:1fr}.watch-feature,.ai-opening,.learning-opening,.comparison-hero{gap:24px;padding-top:10px}.watch-feature>div:nth-child(2){order:-1}.steps-grid,.curriculum{display:grid;grid-template-columns:1fr}.step-card,.step-card:nth-child(4),.step-card:nth-child(5),.curriculum-card,.curriculum-card:nth-child(4),.curriculum-card:nth-child(5){grid-column:span 1}.step-card{padding:24px}.step-number{margin-bottom:16px}.compare-row{grid-template-columns:48px 1fr;gap:10px}.compare-number{font-size:22px}.compare-columns{grid-template-columns:1fr;gap:0}.compare-content h3{font-size:20px}.reading-panel{margin:0 12px 35px;width:auto;border-radius:18px}.workflow-list:before{left:20px}.workflow-item{grid-template-columns:42px 1fr;gap:11px}.workflow-no{width:42px;height:42px;border-radius:12px;font-size:14px}.workflow-item>div{padding:20px}.workflow-item h3{font-size:20px}.risk-note{grid-template-columns:1fr;gap:3px}.ethics-panel{padding-top:22px;padding-bottom:22px;margin-bottom:45px}.practice-section{padding-bottom:55px}.footer-inner{gap:25px;padding-top:46px}.footer-sitemap{gap:20px}.footer-bottom{padding:18px 19px}.mobile-nav{grid-template-columns:1fr}.mobile-nav a{padding:10px 13px}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition-duration:.01ms!important;animation-duration:.01ms!important;scroll-behavior:auto!important}}
@media print{.site-header,.site-footer,.hero-actions,.menu-toggle{display:none!important}body{background:#fff}.container{max-width:100%;padding:0}.genre-detail,.route-card{break-inside:avoid}}