.teacher-section{padding:88px 0;color:#183b4a;background:#fff;scroll-margin-top:110px}
.teacher-shell{width:min(1240px,100%);padding-inline:48px;margin-inline:auto}
.teacher-heading{max-width:860px;margin-bottom:36px}
.teacher-heading h2{font-size:clamp(28px,3vw,40px);line-height:1.5;letter-spacing:-.025em;text-wrap:balance;margin:0 0 16px}
.teacher-heading>p:not(.teacher-eyebrow){font-size:18px;line-height:1.9;color:#4f6470;margin:0}
.teacher-eyebrow{font-size:13px;font-weight:700;letter-spacing:.13em;line-height:1.7;margin:0 0 12px;color:#53722d}
.teacher-credentials{display:grid;grid-template-columns:1fr 2fr;gap:48px;align-items:center;padding:36px 40px;background:#183b4a;color:#fff;border-top:4px solid #bedb82;margin-bottom:40px}
.teacher-years{border-right:1px solid #66808a;padding-right:32px}
.teacher-years strong{display:block;font-size:80px;font-weight:500;line-height:1.1;font-variant-numeric:tabular-nums;letter-spacing:-.06em}
.teacher-years strong span{font-size:24px;letter-spacing:0;margin-left:12px;white-space:nowrap}
.teacher-years p{font-size:16px;line-height:1.8;margin:12px 0 0;color:#fff}
.teacher-school-proof h3{font-size:26px;line-height:1.5;margin:0 0 12px;color:#fff}
.teacher-school-proof p{font-size:17px;line-height:1.9;margin:0;color:#e2ebee}
.teacher-profile-grid{display:grid;grid-template-columns:1fr 1fr;gap:36px}
.teacher-profile{display:grid;grid-template-columns:160px minmax(0,1fr);gap:24px;align-items:start}
.teacher-profile>img{width:160px;height:200px;object-fit:cover;border-radius:0}
.teacher-profile h3{font-size:30px;line-height:1.4;margin:0 0 12px}
.teacher-profile p:not(.teacher-eyebrow){font-size:16px;line-height:1.8;margin:0 0 16px}
.teacher-profile details{font-size:15px;line-height:1.8}
.teacher-profile summary{cursor:pointer;text-decoration:underline;text-underline-offset:5px}
.teacher-profile ul{padding-left:20px;margin:16px 0 0}
.teacher-divider{margin:0;background:#e7edf0;height:clamp(240px,35vw,480px);overflow:hidden}
.teacher-divider img{display:block;width:100%;height:100%;object-fit:cover;object-position:center 45%}
.teacher-tint{background:#f2f6f5}
.teacher-video-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;align-items:stretch}
.teacher-classroom-card{display:flex;flex-direction:column;min-width:0;background:#fff;border-bottom:3px solid #bedb82}
.teacher-classroom-card iframe{display:block;width:100%;height:auto;aspect-ratio:16/9;border:0;background:#183b4a}
.teacher-video-copy{display:flex;flex-direction:column;flex:1;padding:24px}
.teacher-video-copy>a{margin-top:auto}
.teacher-video-copy h3{font-size:22px;line-height:1.6;margin:0 0 16px;text-wrap:balance}
.teacher-video-copy>p:not(.teacher-eyebrow){font-size:16px;line-height:1.9;color:#4f6470;margin:0 0 20px}
.teacher-video-copy>a,.teacher-text-link{display:inline-flex;align-items:center;min-height:44px;font-size:16px;line-height:1.8;font-weight:700;text-decoration:underline;text-underline-offset:5px;color:#183b4a}
/* The writing example keeps the paper treatment of the accepted earlier design. */
.teacher-feedback-section{background:#f6f4ef}
.teacher-feedback-section>.teacher-shell{max-width:1016px}
.teacher-feedback-section .teacher-heading{max-width:800px;margin-bottom:28px}
.teacher-feedback{background:transparent;margin:0;border:0;max-width:none}
.teacher-feedback>.tab-nav{background:transparent;color:#183b4a;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;padding:0;margin:0;border:0}
.teacher-feedback>.tab-nav a{display:flex;align-items:center;justify-content:center;gap:10px;min-width:0;min-height:64px;padding:14px 12px;border:0;border-bottom:3px solid #d7dcd6;background:transparent;color:#4f6470;font-size:17px;line-height:1.6;text-decoration:none;text-align:center;border-radius:0;box-shadow:none;font-weight:500}
.teacher-feedback>.tab-nav a:hover{color:#183b4a;background:#ffffff70}
.teacher-feedback>.tab-nav a[aria-selected=true]{background:#fff;color:#183b4a;border-color:#dd856e;font-weight:700;box-shadow:none}
.teacher-feedback .teacher-feedback-step{display:inline-block;margin:0;font-weight:400;font-size:12px;letter-spacing:.06em;color:#657982}
.teacher-feedback>.tab-panel{display:flex;flex-direction:column;min-height:380px;padding:40px 48px 36px;background:#fff;border:0;box-shadow:0 12px 30px #183b4a06}
.teacher-feedback-phase{display:block;font-family:Georgia,serif;font-size:64px;line-height:1;color:#b4c2ba;letter-spacing:-.04em}
.teacher-feedback .teacher-example{max-width:770px;font-family:Georgia,'Times New Roman',serif;font-size:36px;line-height:1.55;font-weight:400;letter-spacing:-.015em;margin:22px 0 24px;color:#183b4a}
.teacher-feedback .tab-panel>p:not(.teacher-example){font-size:16px;line-height:1.85;margin:auto 0 0;padding-top:18px;border-top:1px solid #e5e9e3;color:#4f6470}
.teacher-feedback mark{background:#f4cf93;color:#183b4a;box-decoration-break:clone;-webkit-box-decoration-break:clone}
.teacher-illustration{font-size:13px;line-height:1.8;color:#657982;margin:20px 0 6px}
.lesson-arrangement-heading{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:end;max-width:none}
.lesson-arrangement-summary{justify-self:end}
.lesson-arrangement-summary p{font-size:17px;line-height:1.8;margin:0}
.lesson-arrangement-facts{display:flex;gap:16px;margin-top:8px;font-size:24px;line-height:1.5;font-weight:700;font-variant-numeric:tabular-nums}
.lesson-arrangement-facts>span+span{padding-left:16px;border-left:1px solid #b6c8d0}
.lesson-fixed-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));border-top:4px solid #bedb82;border-bottom:1px solid #cbd8de;margin-bottom:16px}
.lesson-fixed-row>div{display:grid;grid-template-columns:38px minmax(0,1fr);gap:6px 18px;padding:26px 30px;border-right:1px solid #cbd8de;align-content:start}
.lesson-fixed-row>div:first-child{padding-left:0}
.lesson-fixed-row>div:last-child{border-right:0}
.lesson-fixed-row svg{width:34px;height:34px;fill:none;stroke:#183b4a;stroke-width:1.6;grid-column:1;grid-row:1/3}
.lesson-fixed-row h3{font-size:23px;line-height:1.5;margin:0;grid-column:2}
.lesson-fixed-row p{font-size:16px;line-height:1.8;margin:0;grid-column:2;color:#4f6470}
.teacher-section a:focus-visible,.teacher-section summary:focus-visible,.teacher-section iframe:focus-visible{outline:3px solid #53722d;outline-offset:5px}
.teacher-section [hidden],.teacher-guide [hidden]{display:none!important}
html[lang=th] .teacher-section{line-height:1.9}
.teacher-guide{color:#183b4a}
.teacher-guide .wrap{width:min(1140px,100%);padding-inline:48px;margin-inline:auto}
.teacher-guide>header,.teacher-guide>section{padding:72px 0}
.teacher-guide .article-header-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.teacher-guide h1{font-size:clamp(32px,4vw,52px);line-height:1.5;margin:0 0 24px}
.teacher-guide h2{font-size:clamp(28px,3vw,40px);line-height:1.5;margin:0 0 32px}
.teacher-guide h3{font-size:26px;line-height:1.5;margin:0 0 20px}
.teacher-guide p,.teacher-guide li{font-size:18px;line-height:1.9}
.teacher-guide .article-cover{margin:0}.teacher-guide .article-cover img{width:100%;height:auto;display:block}
.teacher-guide .article-meta{display:flex;gap:20px;font-size:14px;margin-top:24px}
.teacher-guide .v6-storyline{display:flex;justify-content:space-between;gap:24px;align-items:center}
.teacher-guide .v6-storyline>div{display:flex;flex-direction:column;gap:12px}
.teacher-guide .section--pale{background:#f2f6f5}
.teacher-guide .tab-nav{display:flex;flex-wrap:wrap;gap:12px;padding:0;margin:0 0 32px}
.teacher-guide .tab-nav a{font-size:17px;min-height:48px;padding:10px 24px;border:1px solid #9eafb5;color:#183b4a;text-decoration:none}
.teacher-guide .tab-nav a[aria-selected=true]{background:#183b4a;color:#fff}
.teacher-guide .organizer,.teacher-guide .manuscript{background:white;padding:36px;border-top:4px solid #bedb82}
.teacher-guide .organizer-title{display:flex;justify-content:space-between;gap:16px;font-size:13px;letter-spacing:.05em;margin-bottom:20px}
.teacher-guide .organizer-branches{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin:20px 0}
.teacher-guide .organizer-node{border:1px solid #cbd8de;padding:20px}
.teacher-guide .node-label,.teacher-guide .draft-paragraph>span{font-size:14px;font-weight:700;color:#53722d;line-height:1.8}
.teacher-guide .draft-paragraph{border-top:1px solid #cbd8de;padding-top:20px;margin-top:24px}
.teacher-guide .draft-paragraph p{margin:12px 0 0;max-width:880px}
.teacher-guide mark{background:#e2efc9;color:#183b4a}
.teacher-guide .small{font-size:14px;color:#657982}
.teacher-guide .v6-edit-mark{max-width:850px;padding:32px;background:#f2f6f5;margin-bottom:28px}
.teacher-guide .v6-edit-mark>b{font-size:28px}
.teacher-guide .v6-detail{font-size:18px;line-height:1.9;max-width:850px}
.teacher-guide summary{cursor:pointer;min-height:44px}
.teacher-guide .v6-bridge{background:#183b4a;color:white}
.teacher-guide .actions{display:flex;gap:24px;align-items:center;flex-wrap:wrap}
.teacher-guide a:focus-visible{outline:3px solid #53722d;outline-offset:5px}
@media(max-width:1000px){.teacher-profile{grid-template-columns:120px minmax(0,1fr);gap:20px}.teacher-profile>img{width:120px;height:150px}.teacher-profile-grid{gap:24px}.teacher-video-grid{grid-template-columns:1fr;gap:28px}.teacher-classroom-card{display:grid;grid-template-columns:1fr 1fr;align-items:start}.teacher-video-copy{padding:24px}.teacher-credentials{gap:32px;padding:32px}.lesson-arrangement-heading{grid-template-columns:1fr;gap:16px}.lesson-arrangement-summary{justify-self:start}}
@media(max-width:700px){.teacher-section{padding:52px 0}.teacher-shell,.teacher-guide .wrap{padding-inline:24px}.teacher-heading{margin-bottom:28px}.teacher-heading h2{font-size:28px}.teacher-heading>p:not(.teacher-eyebrow){font-size:17px}.teacher-credentials{grid-template-columns:1fr;gap:24px;padding:28px 24px}.teacher-years{border-right:0;border-bottom:1px solid #66808a;padding:0 0 24px}.teacher-years strong{font-size:72px}.teacher-school-proof h3{font-size:24px}.teacher-profile-grid{grid-template-columns:1fr;gap:32px}.teacher-profile h3{font-size:26px}.teacher-classroom-card{display:block}.teacher-video-copy h3{font-size:23px}.teacher-feedback>.tab-nav a{flex-direction:column;gap:3px;min-height:76px;padding:12px 6px;font-size:14px;line-height:1.65}.teacher-feedback>.tab-panel{min-height:440px;padding:28px 24px}.teacher-feedback-phase{font-size:52px}.teacher-feedback .teacher-example{font-size:28px;margin:24px 0}.teacher-feedback .tab-panel>p:not(.teacher-example){font-size:15px;line-height:1.85}.teacher-feedback-section .teacher-heading{margin-bottom:24px}.lesson-fixed-row{grid-template-columns:1fr}.lesson-fixed-row>div,.lesson-fixed-row>div:first-child{padding:22px 0;border-right:0;border-bottom:1px solid #cbd8de}.lesson-fixed-row>div:last-child{border-bottom:0}.lesson-fixed-row h3{font-size:22px}.teacher-guide>header,.teacher-guide>section{padding:48px 0}.teacher-guide .article-header-grid,.teacher-guide .organizer-branches{grid-template-columns:1fr;gap:24px}.teacher-guide .v6-storyline{flex-direction:column;align-items:flex-start}.teacher-guide .v6-storyline>span{transform:rotate(90deg)}.teacher-guide .organizer,.teacher-guide .manuscript{padding:24px}.teacher-guide .organizer-title{flex-wrap:wrap}.teacher-guide p,.teacher-guide li{font-size:17px}}

@media(max-width:360px){.teacher-feedback>.tab-panel{min-height:500px}}