.hdz-page,.hdz-portal{width:min(1240px,calc(100% - 40px));margin:0 auto;padding:66px 0 82px;font-family:inherit;color:var(--hdz-ink,#30251d)}
.hdz-kicker{margin:0;color:var(--hdz-orange-dark,#c95717);font-size:12px;font-weight:850;letter-spacing:.14em}.hdz-detail h1,.hdz-portal h1{margin:8px 0 0;font-size:clamp(34px,4.6vw,56px);line-height:1.14;letter-spacing:-.045em}.hdz-lead{margin:18px 0 0;color:var(--hdz-muted,#796d63);font-size:18px;line-height:1.8}.hdz-button{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:11px 18px;border:1px solid transparent;border-radius:14px;background:var(--hdz-orange-soft,#fff0e2);color:var(--hdz-orange-dark,#c95717);font-weight:850;text-decoration:none;transition:transform .18s,background .18s,box-shadow .18s}.hdz-button:hover{transform:translateY(-2px);box-shadow:0 10px 20px rgba(201,87,23,.15)}.hdz-button--primary{background:var(--hdz-orange,#e8752c);color:#fff}.hdz-button--primary:hover{background:var(--hdz-orange-dark,#c95717)}

/* 首页 */
.hdz-portal__intro{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(340px,.78fr);align-items:center;gap:clamp(38px,7vw,100px);max-width:1120px;margin:8px auto 0;padding:62px 0 48px;position:relative;isolation:isolate}.hdz-portal__intro::before{position:absolute;z-index:-1;inset:-62px -12% auto;height:440px;content:"";background:radial-gradient(circle at 12% 32%,rgba(255,211,151,.36),transparent 27%),radial-gradient(circle at 92% 12%,rgba(255,184,159,.23),transparent 30%);filter:blur(4px)}.hdz-portal__intro-copy{max-width:650px}.hdz-portal__intro h1{font-size:clamp(44px,5.6vw,70px)}.hdz-portal__intro p:not(.hdz-kicker),.hdz-library-heading p:not(.hdz-kicker){margin:18px auto 0;max-width:670px;color:var(--hdz-muted,#796d63);font-size:17px;line-height:1.86}.hdz-portal__intro-copy>p:not(.hdz-kicker){margin-left:0}.hdz-portal__actions{display:flex;align-items:center;gap:20px;margin-top:27px}.hdz-text-link{color:#5f4737;font-size:14px;font-weight:800;text-decoration:none}.hdz-text-link:hover{color:var(--hdz-orange-dark,#c95717)}.hdz-portal__metrics{display:flex;flex-wrap:wrap;gap:17px 30px;margin-top:35px;padding-top:21px;border-top:1px solid rgba(214,190,171,.58);color:#8a7869;font-size:12px}.hdz-portal__metrics span{white-space:nowrap}.hdz-portal__metrics strong{display:block;margin-bottom:2px;color:#382b21;font-size:21px;line-height:1.1}.hdz-hero-preview{position:relative;display:block;overflow:hidden;border:1px solid rgba(228,205,186,.95);border-radius:24px;background:#fffefa;box-shadow:0 24px 50px rgba(93,57,28,.14);color:inherit;text-decoration:none;transform:rotate(1.6deg);transition:transform .22s,box-shadow .22s}.hdz-hero-preview:hover{box-shadow:0 28px 55px rgba(93,57,28,.19);transform:rotate(0) translateY(-5px)}.hdz-hero-preview__eyebrow{position:absolute;z-index:2;top:16px;left:16px;padding:6px 9px;border:1px solid rgba(255,255,255,.8);border-radius:999px;background:rgba(255,255,255,.82);color:#9c4d20;font-size:11px;font-weight:850;backdrop-filter:blur(10px)}.hdz-hero-preview__cover{display:block;aspect-ratio:16/9;overflow:hidden;background:#fff1e3}.hdz-hero-preview__cover>img{display:block;width:100%;height:100%;object-fit:cover}.hdz-hero-preview__body{display:block;padding:17px 19px 18px}.hdz-hero-preview__subject{display:block;color:var(--hdz-orange-dark,#c95717);font-size:11px;font-weight:850;letter-spacing:.07em}.hdz-hero-preview strong{display:block;margin-top:6px;font-size:21px;line-height:1.32}.hdz-hero-preview__body>span:last-child{display:block;margin-top:12px;color:#b9541a;font-size:13px;font-weight:850}.hdz-hero-preview b{margin-left:5px;font-size:15px}.hdz-library-heading{padding:10px 0 18px;text-align:center}.hdz-library-heading h1{font-size:clamp(34px,4.4vw,52px)}
.hdz-subject-nav{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px;margin:3px auto 0;max-width:1000px}.hdz-subject-nav a{position:relative;display:grid;grid-template-columns:auto 1fr;column-gap:10px;align-items:center;min-height:74px;padding:12px 16px;border:1px solid var(--hdz-line,#f0dfd0);border-radius:16px;background:rgba(255,255,255,.76);color:#40342c;font-size:15px;font-weight:850;text-decoration:none;isolation:isolate;overflow:hidden;transition:transform .18s,border-color .18s,background .18s,box-shadow .18s}.hdz-subject-nav a::after{position:absolute;z-index:-1;inset:0;content:"";opacity:.68;background-image:linear-gradient(rgba(86,68,51,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(86,68,51,.07) 1px,transparent 1px);background-size:19px 19px}.hdz-subject-nav__item--yuwen::after{background-image:repeating-linear-gradient(to bottom,transparent 0 21px,rgba(157,126,68,.13) 22px 23px)}.hdz-subject-nav__item--shuxue::after{background-image:linear-gradient(rgba(78,122,142,.10) 1px,transparent 1px),linear-gradient(90deg,rgba(78,122,142,.10) 1px,transparent 1px);background-size:18px 18px}.hdz-subject-nav__item--yingyu::after{background-image:repeating-linear-gradient(to bottom,transparent 0 20px,rgba(121,96,144,.12) 21px 22px)}.hdz-subject-nav__item--dili::after{background-image:radial-gradient(ellipse at center,transparent 51%,rgba(84,125,103,.14) 52% 53%,transparent 54%),repeating-linear-gradient(90deg,transparent 0 19px,rgba(84,125,103,.09) 20px 21px);background-size:46px 27px,20px 100%}.hdz-subject-nav a:hover,.hdz-subject-nav a.is-active{border-color:#b06f42;background:#fffaf4;box-shadow:0 10px 22px rgba(74,48,27,.1);transform:translateY(-2px)}.hdz-subject-nav__icon{display:grid;width:38px;height:38px;place-items:center;border-radius:12px;background:#fff0e2;color:#984519;font-size:13px;font-weight:900}.hdz-subject-nav__item--shuxue .hdz-subject-nav__icon{background:#edf6f8;color:#427c93}.hdz-subject-nav__item--yingyu .hdz-subject-nav__icon{background:#f4eff8;color:#765b91}.hdz-subject-nav__item--dili .hdz-subject-nav__icon{background:#edf6f0;color:#4b8068}.hdz-subject-nav small{grid-column:2;color:#806f63;font-size:11px;font-weight:650}.hdz-search-result{margin:34px 0 0;color:var(--hdz-muted,#796d63)}.hdz-section-heading{margin:72px 0 28px;text-align:center}.hdz-section-heading h2{margin:7px 0 0;font-size:30px;line-height:1.25;letter-spacing:-.03em}.hdz-section-heading p:not(.hdz-kicker){margin:10px auto 0;color:var(--hdz-muted,#796d63);line-height:1.7}.hdz-home-section{margin-top:70px}.hdz-card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}.hdz-card{position:relative;min-height:100%;overflow:hidden;border:1px solid var(--hdz-line,#f0dfd0);border-radius:var(--hdz-radius,20px);background:var(--hdz-surface,#fffdfa);box-shadow:0 8px 22px rgba(101,69,40,.055);transition:transform .2s,box-shadow .2s}.hdz-card::after{position:absolute;z-index:0;right:-30px;bottom:-34px;width:115px;height:115px;border:1px solid var(--hdz-card-accent);border-radius:50%;content:"";opacity:.15;pointer-events:none}.hdz-card--shuxue::after{border-radius:0;background-image:linear-gradient(var(--hdz-card-accent) 1px,transparent 1px),linear-gradient(90deg,var(--hdz-card-accent) 1px,transparent 1px);background-size:17px 17px}.hdz-card--yingyu::after{width:118px;height:76px;border-width:0 0 1px;border-radius:0;background:repeating-linear-gradient(to bottom,transparent 0 17px,var(--hdz-card-accent) 18px 19px)}.hdz-card--dili::after{width:118px;height:74px;border-radius:50%;background-image:radial-gradient(ellipse at center,transparent 50%,var(--hdz-card-accent) 51% 52%,transparent 53%),linear-gradient(90deg,transparent 49%,var(--hdz-card-accent) 50% 51%,transparent 52%)}.hdz-card:hover{transform:translateY(-5px);box-shadow:0 18px 38px rgba(101,69,40,.13)}.hdz-card__whole-link{position:absolute;z-index:2;inset:0;text-indent:200%;white-space:nowrap;overflow:hidden}.hdz-card__whole-link:focus{outline:3px solid rgba(232,117,44,.5);outline-offset:-3px}.hdz-card__cover{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--hdz-card-accent,#fff0e2)}.hdz-card__cover img{display:block;width:100%;height:100%;object-fit:cover;transition:transform .34s}.hdz-card:hover .hdz-card__cover>img{transform:scale(1.035)}.hdz-card__placeholder{display:flex;width:100%;height:100%;align-items:flex-end;padding:18px;background:linear-gradient(135deg,color-mix(in srgb,var(--hdz-card-accent,#f7b26c) 70%,#fff),var(--hdz-card-accent,#f7b26c));color:rgba(88,58,35,.8);font-size:20px;font-weight:850;letter-spacing:.06em}.hdz-card__content{position:relative;z-index:1;display:flex;min-height:214px;flex-direction:column;padding:20px 21px 21px}.hdz-card h2{margin:7px 0 0;font-size:21px;line-height:1.32;letter-spacing:-.02em}.hdz-card p{margin:0}.hdz-card__subject{color:#77533f;font-size:12px;font-weight:850;letter-spacing:.05em}.hdz-card__summary{display:-webkit-box;overflow:hidden;margin-top:10px!important;color:var(--hdz-muted,#796d63);font-size:14px;line-height:1.7;-webkit-box-orient:vertical;-webkit-line-clamp:3}.hdz-card__action{align-self:flex-start;margin-top:auto;padding-top:16px;color:var(--hdz-orange-dark,#c95717);font-size:14px;font-weight:850}.hdz-home-cta{margin:32px 0 0;text-align:center}.hdz-teaching-path{position:relative;display:grid;grid-template-columns:.78fr 1.22fr;gap:42px;align-items:start;margin:78px 0 8px;padding:36px 42px;border:1px solid #ded0c2;border-radius:22px;background-color:#fffaf2;background-image:repeating-linear-gradient(to bottom,transparent 0 30px,rgba(120,92,68,.07) 31px 32px),linear-gradient(90deg,transparent 64px,rgba(204,108,82,.14) 65px 66px,transparent 67px)}.hdz-teaching-path h2{margin:8px 0 0;color:#33271f;font-size:29px;line-height:1.32;letter-spacing:-.035em}.hdz-teaching-path ol{display:grid;grid-template-columns:repeat(3,1fr);gap:17px;margin:0;padding:0;list-style:none}.hdz-teaching-path li{min-width:0}.hdz-teaching-path li>span{display:grid;width:29px;height:29px;place-items:center;border-radius:50%;background:#6a4a38;color:#fff;font-size:11px;font-weight:900}.hdz-teaching-path strong{display:block;margin-top:12px;font-size:15px;line-height:1.45}.hdz-teaching-path p{margin:6px 0 0;color:var(--hdz-muted,#796d63);font-size:13px;line-height:1.65}.hdz-about{max-width:880px;margin:84px auto 0;padding:46px;border:1px solid var(--hdz-line,#f0dfd0);border-radius:var(--hdz-radius,20px);background:#fffaf5;text-align:center}.hdz-about h2{margin:8px 0 0;font-size:30px}.hdz-about p:not(.hdz-kicker){margin:13px auto 0;color:var(--hdz-muted,#796d63);line-height:1.85}.hdz-series-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:20px}.hdz-series-card{border:1px solid var(--hdz-line,#f0dfd0);border-radius:var(--hdz-radius,20px);padding:25px;background:var(--hdz-surface,#fffdfa)}.hdz-series-card h3{margin:8px 0;font-size:23px}.hdz-series-card h3 a{color:inherit;text-decoration:none}.hdz-series-card p{color:var(--hdz-muted,#796d63);line-height:1.7}.hdz-series-card__count{margin:14px 0!important;font-size:14px}.hdz-series-callout{max-width:680px;margin:36px auto 0;text-align:center}.hdz-series-callout h2{margin:8px 0;font-size:28px}.hdz-series-callout p{color:var(--hdz-muted,#796d63);line-height:1.75}

/* 系列页与单课件页 */
.hdz-series-cta{margin-top:52px;padding:30px;border:1px solid var(--hdz-line,#f0dfd0);border-radius:var(--hdz-radius,20px);background:#fffaf5}.hdz-series-cta h2{margin:0;font-size:23px}.hdz-series-cta p{margin:9px 0 18px;color:var(--hdz-muted,#796d63);line-height:1.75}
.hdz-fallback-cover{position:relative;display:flex;width:100%;height:100%;min-height:100%;overflow:hidden;flex-direction:column;align-items:flex-start;justify-content:center;padding:8%;background-color:#e8752c;background-position:center;background-size:cover;color:#fff;text-shadow:0 2px 10px rgba(58,28,10,.3)}.hdz-fallback-cover__tag{position:absolute;top:8%;right:7%;padding:5px 9px;border:1px solid rgba(255,255,255,.48);border-radius:999px;background:rgba(255,255,255,.14);font-size:10px;font-weight:800;white-space:nowrap}.hdz-fallback-cover__subject{margin-bottom:9px;color:#fff3dc;font-size:11px;font-weight:800;letter-spacing:.05em}.hdz-fallback-cover strong{display:-webkit-box;overflow:hidden;max-width:70%;font-size:clamp(21px,2.3vw,35px);line-height:1.18;-webkit-box-orient:vertical;-webkit-line-clamp:2}.hdz-fallback-cover small{display:-webkit-box;overflow:hidden;max-width:60%;margin-top:10px;color:rgba(255,255,255,.91);font-size:11px;line-height:1.5;-webkit-box-orient:vertical;-webkit-line-clamp:2}.hdz-fallback-cover__brand{position:absolute;right:7%;bottom:8%;display:flex;align-items:center;gap:5px;font-size:10px;font-weight:800;white-space:nowrap}.hdz-fallback-cover__brand img{width:20px!important;height:20px!important;border-radius:50%;background:#fff;object-fit:contain!important}
.hdz-detail{max-width:none}.hdz-detail-hero{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(330px,.95fr);align-items:center;gap:54px}.hdz-detail-cover{aspect-ratio:16/9;overflow:hidden;border:1px solid var(--hdz-line,#f0dfd0);border-radius:var(--hdz-radius,20px);background:var(--hdz-orange-soft,#fff0e2);box-shadow:var(--hdz-shadow,0 12px 34px rgba(101,69,40,.08))}.hdz-detail-cover img{display:block;width:100%;height:100%;object-fit:cover}.hdz-detail-cover--placeholder{display:grid;place-items:center;background:linear-gradient(135deg,#f6b362,#e8752c);color:rgba(255,255,255,.85);font-size:28px;font-weight:900;letter-spacing:.08em}.hdz-detail-hero__copy{max-width:540px}.hdz-detail-hero h1{font-size:clamp(36px,4.3vw,56px)}.hdz-detail-hero .hdz-lead{font-size:18px}.hdz-series-context{margin:18px 0 0;color:var(--hdz-muted,#796d63);line-height:1.7}.hdz-series-context a,.hdz-series-link{color:var(--hdz-orange-dark,#c95717);font-weight:800;text-decoration:none}.hdz-series-context span{display:block;margin-top:3px;color:#9a897b;font-size:14px}.hdz-detail-actions{display:flex;align-items:center;flex-wrap:wrap;gap:16px;margin-top:24px}.hdz-series-link{font-size:14px}.hdz-device-note{margin:14px 0 0;color:#98877a;font-size:13px;line-height:1.7}.hdz-access-note{margin:12px 0 0;color:var(--hdz-orange-dark,#c95717);font-size:14px;font-weight:750}.hdz-detail section{margin-top:60px;padding-top:28px;border-top:1px solid var(--hdz-line,#f0dfd0)}.hdz-detail section h2{margin:0;font-size:24px}.hdz-tags{display:flex;flex-wrap:wrap;gap:9px;margin:18px 0 0;padding:0}.hdz-tags span{padding:7px 11px;border-radius:999px;background:var(--hdz-orange-soft,#fff0e2);color:var(--hdz-orange-dark,#c95717);font-size:14px}.hdz-content{max-width:820px;margin-top:16px;color:#5f5146;line-height:1.9}.hdz-content p:first-child{margin-top:0}.hdz-related{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:18px 0 0;padding:0;list-style:none}.hdz-related li{border:1px solid var(--hdz-line,#f0dfd0);border-radius:12px;background:#fffdf9}.hdz-related a{display:block;padding:15px;color:var(--hdz-orange-dark,#c95717);font-weight:800;text-decoration:none;line-height:1.45}.hdz-related a:hover{background:var(--hdz-orange-soft,#fff0e2)}.hdz-series-list{margin-top:60px;padding-top:28px;border-top:1px solid var(--hdz-line,#f0dfd0)}.hdz-series-list h2{margin:0 0 14px;font-size:25px}.hdz-course-list{margin:0;padding:0;list-style:none;border-top:1px solid var(--hdz-line,#f0dfd0)}.hdz-course-list li{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:18px 8px;border-bottom:1px solid var(--hdz-line,#f0dfd0)}.hdz-course-list li>span{font-size:17px}.hdz-course-list a{color:var(--hdz-orange-dark,#c95717);font-weight:850;text-decoration:none;white-space:nowrap}.hdz-offline-cta{margin-top:52px;padding:30px;border:1px solid var(--hdz-line,#f0dfd0);border-radius:var(--hdz-radius,20px);background:#fffaf5}.hdz-offline-cta h2{margin:0;font-size:23px}.hdz-offline-cta p{margin:9px 0 18px;color:var(--hdz-muted,#796d63);line-height:1.75}.hdz-member-badge{display:none}
@media(max-width:1100px){.hdz-portal__intro{grid-template-columns:1fr;gap:32px;max-width:760px;padding-top:48px}.hdz-portal__intro-copy{max-width:680px}.hdz-hero-preview{width:min(100%,460px);margin:0 auto;transform:rotate(.7deg)}.hdz-hero-preview__cover{aspect-ratio:16/9}.hdz-subject-nav{max-width:none}.hdz-card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.hdz-teaching-path{grid-template-columns:1fr;gap:25px}.hdz-detail-hero{gap:36px}}
@media(max-width:720px){.hdz-page,.hdz-portal{width:min(100% - 32px,560px);padding:40px 0 55px}.hdz-portal__intro{grid-template-columns:1fr;gap:28px;padding:35px 0 26px}.hdz-portal__intro h1{font-size:clamp(40px,11vw,52px)}.hdz-portal__intro p:not(.hdz-kicker){font-size:16px}.hdz-portal__actions{margin-top:23px}.hdz-portal__metrics{gap:13px 22px;margin-top:29px}.hdz-hero-preview{max-width:430px;margin:0 auto;transform:rotate(.6deg)}.hdz-subject-nav{grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.hdz-subject-nav a{min-height:66px;padding:10px 11px;font-size:14px}.hdz-subject-nav__icon{width:33px;height:33px;border-radius:10px;font-size:11px}.hdz-subject-nav small{font-size:10px}.hdz-section-heading{margin-top:52px}.hdz-section-heading h2{font-size:27px}.hdz-card-grid{grid-template-columns:1fr;gap:16px}.hdz-card__content{min-height:190px}.hdz-teaching-path{margin-top:58px;padding:27px 22px}.hdz-teaching-path h2{font-size:25px}.hdz-teaching-path ol{grid-template-columns:1fr;gap:15px;margin-top:3px}.hdz-teaching-path li{display:grid;grid-template-columns:29px 1fr;column-gap:12px}.hdz-teaching-path strong{margin-top:3px}.hdz-teaching-path p{grid-column:2;margin-top:3px}.hdz-about{margin-top:56px;padding:30px 22px}.hdz-detail-hero{grid-template-columns:1fr;gap:26px}.hdz-detail-hero__copy{max-width:none}.hdz-detail-hero h1{font-size:clamp(35px,11vw,48px)}.hdz-detail section,.hdz-series-list{margin-top:44px}.hdz-related{grid-template-columns:1fr}.hdz-course-list li{align-items:flex-start;flex-direction:column;gap:9px;padding:16px 0}.hdz-course-list li>span{font-size:16px}.hdz-offline-cta,.hdz-series-cta{margin-top:40px;padding:25px 21px}}