/* detail page */
.detail-main{background:#fffdf9;padding-bottom:85px}.breadcrumb{display:flex;align-items:center;gap:9px;padding:19px 0;color:#87939b;font-size:12px}.breadcrumb a{color:#a7752c}.detail-hero{width:min(1290px,calc(100% - 72px));margin:0 auto 38px;display:grid;grid-template-columns:1.05fr 1fr;align-items:center;gap:30px;padding:34px 0 27px;border-bottom:1px solid var(--line)}.detail-hero-copy{padding-right:15px}.article-label{display:inline-flex;padding:7px 13px;border-radius:18px;color:#a87322;background:#fff2d5;font-size:12px;font-weight:800}.detail-hero h1{font-size:clamp(32px,4vw,52px);line-height:1.35;letter-spacing:-1px;margin:16px 0 9px;color:var(--navy)}.detail-hero p{color:var(--muted);font-size:15px;line-height:2;max-width:650px}.meta{display:flex;flex-wrap:wrap;gap:18px;color:#7d8990;font-size:11px;margin-top:19px}.meta i{color:var(--gold);margin-left:5px}.detail-hero-art{height:260px;border-radius:19px;background:linear-gradient(135deg,#fff0d2,#edf2eb);display:flex;align-items:end;justify-content:center;overflow:hidden}.detail-hero-art img{height:280px;width:100%;object-fit:contain;filter:drop-shadow(0 16px 15px rgba(12,39,51,.1))}.article-layout{width:min(1290px,calc(100% - 72px));margin:auto;display:grid;grid-template-columns:285px 1fr;direction:ltr;gap:26px;align-items:start}.article-sidebar,.article-content{direction:rtl}.article-sidebar{position:sticky;top:18px;display:grid;gap:17px}.side-box{background:#fff;border:1px solid var(--line);border-radius:15px;padding:19px;box-shadow:0 8px 25px rgba(25,42,51,.04)}.side-box h2{font-size:17px;margin:0 0 12px;color:var(--navy)}.toc{display:grid;gap:2px}.toc a{padding:9px 10px;border-radius:8px;color:#5d6f79;font-size:12px}.toc a.active,.toc a:hover{background:#fff3d9;color:#a87527;font-weight:700}.download-box{display:flex;align-items:center;gap:10px;padding:15px;border:1px solid #e7d4ac;border-radius:14px;background:#fff6e5;color:#ad7623}.download-box>i:first-child{font-size:28px}.download-box span{display:grid;gap:4px;flex:1}.download-box b{font-size:12px}.download-box small{color:#9b907d}.related{display:grid;gap:11px}.related>a{display:flex;align-items:center;gap:9px;font-size:11px;line-height:1.6}.related img{width:58px;height:47px;border-radius:7px;object-fit:cover}.article-content{max-width:880px}.article-content>section{padding:25px 0 4px}.article-content h2{font-size:22px;color:var(--navy);margin:0 0 11px}.article-content p{color:#576b77;line-height:2.1;margin:0;font-size:14px}.video-card{border-radius:15px;overflow:hidden;background:#0c2437;box-shadow:var(--shadow);margin-bottom:22px}.video-bg{position:relative;height:370px}.video-bg img{width:100%;height:100%;object-fit:cover;filter:brightness(.56) saturate(1.15)}.play{position:absolute;inset:0;margin:auto;width:70px;height:70px;display:grid;place-items:center;border-radius:50%;background:rgba(255,255,255,.84);color:var(--navy);font-size:40px;padding-right:4px}.video-caption{position:absolute;right:28px;top:24px;color:#fff;font-size:23px;font-weight:700}.video-bar{height:37px;padding:0 17px;display:flex;justify-content:space-between;align-items:center;color:#b8c7ce;font-size:11px}.note{display:flex;align-items:center;gap:12px;margin:16px 0;padding:14px 17px;border-radius:12px;background:#fff7e6;border:1px solid #f0d49a}.note i{font-size:26px;color:#d49d31}.note p{color:#7c6a4b}.principle-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:15px 0}.principle-grid>div{border:1px solid var(--line);border-radius:12px;padding:14px;background:#fff}.principle-grid b{color:#a97628}.principle-grid p{font-size:12px;margin-top:7px}.chart-illustration{height:165px;position:relative;overflow:hidden;border-radius:12px;background:repeating-linear-gradient(0deg,#f7f4ec 0 1px,transparent 1px 33px),repeating-linear-gradient(90deg,#f7f4ec 0 1px,transparent 1px 55px),#fff;margin-top:15px}.chart-line{position:absolute;inset:25px 35px 28px;background:linear-gradient(155deg,transparent 0 11%,#c99a37 11% 12%,transparent 12% 22%,#c99a37 22% 23%,transparent 23% 42%,#c99a37 42% 43%,transparent 43% 53%,#c99a37 53% 54%,transparent 54% 69%,#c99a37 69% 70%,transparent 70% 77%,#c99a37 77% 78%,transparent 78%);opacity:.9}.chart-illustration span{position:absolute;left:12px;top:12px;color:#a98338;font-size:11px}.tools-table{border:1px solid var(--line);border-radius:12px;overflow:hidden;margin-top:16px}.tools-table>div{display:grid;grid-template-columns:1fr 1.7fr .7fr;gap:10px;padding:13px 15px;border-top:1px solid var(--line);font-size:12px}.tools-table>div:first-child{border-top:0}.tools-table .th{background:#f8f4eb;color:var(--navy)}.pros-cons{display:grid;grid-template-columns:1fr 1fr;gap:14px}.pros-cons>div{padding:16px;border-radius:12px;background:#f6fbf4;border:1px solid #dbe9d9}.pros-cons>div+div{background:#fff8ef;border-color:#f1dfbe}.pros-cons h3{font-size:15px;margin:0 0 8px;color:#4d8054}.pros-cons>div+div h3{color:#ad7628}.pros-cons p{font-size:12px}.detail-faq details{border-top:1px solid var(--line);padding:14px 0}.detail-faq summary{display:flex;justify-content:space-between;cursor:pointer;font-weight:700;font-size:13px;list-style:none}.detail-faq summary::-webkit-details-marker{display:none}.detail-faq details p{font-size:12px;margin-top:8px}.author-box{display:flex;align-items:center;gap:14px;margin-top:34px;padding:17px;border:1px solid var(--line);border-radius:14px;background:#fff}.author-avatar{width:51px;height:51px;display:grid;place-items:center;border-radius:50%;background:var(--navy);color:#f4c762;font-size:20px;font-weight:800}.author-box p{font-size:12px;margin-top:4px}.next-learning{display:flex;align-items:center;justify-content:space-between;margin-top:25px;padding:19px;border-radius:14px;background:var(--navy);color:#fff}.next-learning h2{color:#fff;font-size:17px;margin:0}.next-learning a{color:#f3c76a;font-size:12px;font-weight:800}@media(max-width:900px){.detail-hero{width:min(100% - 32px,700px);grid-template-columns:1fr}.detail-hero-art{height:230px}.article-layout{width:min(100% - 32px,700px);grid-template-columns:1fr}.article-sidebar{position:static;order:2}.article-content{order:1}.video-bg{height:280px}}@media(max-width:560px){.detail-hero h1{font-size:31px}.meta{gap:10px}.principle-grid,.pros-cons{grid-template-columns:1fr}.video-caption{font-size:16px;right:15px}.video-bg{height:220px}.article-content p{font-size:13px}.detail-main{padding-bottom:50px}}
/* Education pages use the exact shared site header geometry */
.edu-header{position:sticky!important;inset:auto!important;height:76px!important;background:var(--header)!important;border-bottom:1px solid var(--header-border)!important;box-shadow:0 8px 28px rgba(15,35,50,.04)!important}
.edu-header .nav{width:min(1240px,calc(100% - 40px));height:76px;display:flex;align-items:center;gap:18px;flex-wrap:nowrap;margin-inline:auto}
.edu-header .brand{order:0;display:inline-flex;align-items:center;gap:11px;min-width:max-content;flex-shrink:0;color:var(--text)!important}
.edu-header .brand-mark{width:44px;height:44px}
.edu-header .brand-copy strong{font-size:21px;font-weight:900;letter-spacing:-.3px;color:var(--text)!important}.edu-header .brand-copy small{font-size:10px;margin-top:3px}
.edu-header .desktop-nav{display:flex;align-items:center;justify-content:center;gap:22px;flex:1;min-width:0;margin-inline:auto;padding-inline:8px}
.edu-header .desktop-nav>a,.edu-header .desktop-nav .site-menu__trigger{font-size:13px!important;color:var(--nav-link)!important;white-space:nowrap}
.edu-header .nav-actions{display:flex;align-items:center;gap:8px;flex-shrink:0;order:2}.edu-header .nav-actions .btn-login{display:inline-flex}.edu-header .mobile-menu{display:none}
@media(max-width:1100px) and (min-width:701px){.edu-header .desktop-nav{gap:10px}.edu-header .desktop-nav>a,.edu-header .desktop-nav .site-menu__trigger{font-size:11px!important}}
@media(max-width:700px){.edu-header{height:68px!important}.edu-header .nav{width:calc(100% - 24px);height:68px}.edu-header .desktop-nav{display:none}.edu-header .nav-actions .btn-login,.edu-header .nav-actions .btn-gold{display:none}.edu-header .brand-copy strong{font-size:18px}.edu-header .brand-copy small{display:none}.edu-header .mobile-menu{display:block;margin-right:auto}.edu-header .mobile-menu summary{list-style:none;font-size:22px}.edu-header .mobile-menu summary::-webkit-details-marker{display:none}}