:root{font-family:system-ui,-apple-system,"Microsoft YaHei",sans-serif;color:#322b21;background:#f8f6f0}*{box-sizing:border-box}body{margin:0;min-height:100vh}a{color:#8f6826}button,input,select{font:inherit}button{cursor:pointer}.header{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:18px max(20px,calc((100vw - 1180px)/2));background:#fff;border-bottom:1px solid #e8dfce}.brand{font-size:1.35rem;font-weight:800;text-decoration:none;color:#543e1d}.header nav{display:flex;gap:20px;flex-wrap:wrap}.header nav a{text-decoration:none;color:#594b38}main{max-width:1180px;margin:32px auto;padding:0 20px;min-height:60vh}.card,.gate,.video-intro{background:#fff;border:1px solid #e9dfcb;border-radius:16px;padding:30px;box-shadow:0 8px 30px #372b1510}.gate{max-width:760px;margin:7vh auto;text-align:center}.eyebrow{font-size:.78rem;letter-spacing:.12em;color:#ad8337;font-weight:700}h1{font-size:clamp(1.8rem,4vw,2.8rem);line-height:1.3}h2{font-size:1.3rem}.button{display:inline-block;background:#9a722f;color:white;border:1px solid #9a722f;border-radius:8px;padding:11px 19px;text-decoration:none;font-weight:700;margin-top:12px}.button:hover{background:#76531c}.button:disabled{opacity:.55;cursor:wait}.button.secondary{background:white;color:#76531c}.form-card{max-width:600px;margin:auto}.form-card form{display:grid;gap:10px}.form-card label{font-weight:650;margin-top:12px}.form-card input:not([type=checkbox]),.form-card select{width:100%;padding:12px;border:1px solid #bdb4a4;border-radius:7px;background:white}.check{display:flex;align-items:flex-start;gap:8px;font-size:.9rem}.check input{margin-top:5px}.notice{padding:12px;border-radius:7px;background:#f3ecd9}.notice[data-type=error]{background:#fff0ee;color:#a12518}.field-hint{color:#776d60;font-size:.87rem}.suggestions{display:grid;gap:5px}.suggestions button{text-align:left;border:1px solid #ddd2bc;background:#fff;padding:8px;border-radius:5px}.reader{display:grid;grid-template-columns:250px minmax(0,1fr);gap:25px}.toc{position:sticky;top:20px;align-self:start;max-height:90vh;overflow:auto;background:#fff;padding:20px;border:1px solid #e9dfcb;border-radius:12px}.toc nav{display:grid;gap:8px}.toc a{text-decoration:none}.chapter{min-width:0;line-height:1.8}.chapter img{max-width:100%}.chapter table{display:block;overflow:auto;border-collapse:collapse}.chapter td,.chapter th{border:1px solid #ddd;padding:8px}.chapter pre{overflow:auto;background:#f4f0e6;padding:15px}.pills{display:flex;gap:10px;flex-wrap:wrap}.pills a{padding:8px 12px;background:#f6efdf;border-radius:30px;text-decoration:none}.video-series{margin:36px 0}.video-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:15px}.video-card{background:#fff;border:1px solid #e8dfce;border-radius:10px;padding:18px;display:flex;flex-direction:column;justify-content:space-between}.video-card small{display:block;margin-top:10px;color:#776d60}.legal{max-width:800px;margin:32px auto;line-height:1.8}.account-actions{margin-top:25px;border-top:1px solid #eee}footer{text-align:center;padding:30px;color:#786a58}@media(max-width:760px){.header{align-items:flex-start;flex-direction:column}.reader{display:block}.toc{position:static;max-height:250px;margin-bottom:20px}.card,.gate,.video-intro{padding:20px}main{margin:20px auto}}@media print{.header,.toc,footer,.button{display:none}.reader{display:block}.chapter{box-shadow:none;border:0}}

/* Keep labels and controls evenly spaced, including the conditional “other role” field. */
.form-card form { gap: 0; }
.form-card form > label:not(.check) {
  display: block;
  margin: 20px 0 8px;
  line-height: 1.45;
}
.form-card form > label:first-child { margin-top: 8px; }
.form-card form > input:not([type=checkbox]),
.form-card form > select,
#other-wrap input {
  display: block;
  min-height: 52px;
  margin: 0;
}
.form-card form > button { min-height: 44px; margin-top: 18px; }
.form-card form > #send-code { justify-self: start; margin-top: 8px; }
.form-card form > label.check { margin: 18px 0 4px; line-height: 1.55; }
.form-card form > .button { display: inline-flex; width: 100%; justify-content: center; align-items: center; }
#other-wrap:not([hidden]) {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 8px;
  margin-top: 18px;
}
#other-wrap label { display: block; margin: 0; line-height: 1.45; }
.suggestions:not(:empty) { margin-top: 8px; }
#school-state { margin: 8px 0 0; line-height: 1.5; }
.notice[hidden] { display: none !important; }
.notice:not([hidden]) { margin: 16px 0 0; line-height: 1.55; }
button:focus-visible,
.button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible {
  outline: 3px solid #c7983d;
  outline-offset: 3px;
}
button, input:not([type=checkbox]), select { min-height: 44px; }
@media (max-width: 760px) {
  .header nav { gap: 14px; }
  .form-card { padding: 20px; }
}

/* Compact login layout; feedback stays beside the send action. */
.login-card{max-width:480px;padding:24px}
.login-card h1{font-size:1.75rem;margin:0 0 18px;line-height:1.3}
.login-phone-row{display:flex;gap:10px;align-items:stretch;min-width:0}
.login-card .login-phone-row input{flex:1;min-width:0;width:0;min-height:48px;padding:10px}
.login-card .login-phone-row #send-code{flex-shrink:0;margin:0;padding:10px 12px;font-size:.9rem;min-height:48px}
.login-card form>label:not(.check){margin:16px 0 6px}
.login-card form>label:first-child{margin-top:0}
.login-card form>input:not([type=checkbox]){min-height:48px;padding:10px}
.login-card form>label.check{font-weight:400;margin:16px 0 0;font-size:.85rem}
.login-card form>button{margin-top:16px;min-height:46px}
.login-card .notice:not([hidden]){margin:8px 0 0;padding:8px 10px;font-size:.9rem;line-height:1.5}
@media(max-width:760px){body[data-page=login] main{margin:16px auto}.login-card{padding:20px}.login-card h1{font-size:1.5rem}}


.tea-loading{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:44vh;padding:32px 16px;color:#61513f;text-align:center}
.tea-doodle{display:block;width:260px;height:auto;max-width:70vw;animation:tea-doodle-float 3s ease-in-out infinite}
.tea-loading .tea-loading-label{min-height:1.6em;margin:18px 0 0;font-size:20px;font-weight:500;letter-spacing:.04em;line-height:1.6}
.tea-loading-dots{display:flex;gap:7px;margin-top:12px;height:6px}
.tea-loading-dots i{width:5px;height:5px;border-radius:50%;background:#bd903c;animation:tea-dot 1.4s ease-in-out infinite}
.tea-loading-dots i:nth-child(2){animation-delay:.18s}.tea-loading-dots i:nth-child(3){animation-delay:.36s}
@keyframes tea-doodle-float{0%,100%{transform:translateY(0) rotate(-.6deg)}50%{transform:translateY(-3px) rotate(.6deg)}}
@keyframes tea-dot{0%,80%,100%{opacity:.25;transform:translateY(0)}40%{opacity:1;transform:translateY(-2px)}}
@media(max-width:760px){.tea-doodle{width:240px}.tea-loading .tea-loading-label{font-size:18px}}
@media(prefers-reduced-motion:reduce){.tea-doodle,.tea-loading-dots i{animation:none;transform:none}}
/* Shared navigation feedback, including the account nickname. */
.header nav a,.site-nav a{position:relative;transition:color .18s ease;cursor:pointer}
.header nav a::after,.site-nav a::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;border-radius:2px;background:#a77c2c;transform:scaleX(0);transform-origin:center;transition:transform .18s ease;pointer-events:none}
.header nav a:hover,.header nav a:focus-visible,.site-nav a:hover,.site-nav a:focus-visible{color:#a77c2c}
.header nav a:hover::after,.header nav a:focus-visible::after,.site-nav a:hover::after,.site-nav a:focus-visible::after{transform:scaleX(1)}
.header nav a:focus-visible,.site-nav a:focus-visible{outline:2px solid #bd9655;outline-offset:7px;border-radius:2px}
@media(prefers-reduced-motion:reduce){.header nav a,.header nav a::after,.site-nav a,.site-nav a::after{transition:none}}
.header .brand-lockup{display:block;width:210px;height:60px;max-width:70vw;object-fit:contain}
/* Video library: local redesign awaiting approval. */
body[data-page=videos] main{max-width:1180px;margin:54px auto 64px}
.video-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;margin-bottom:36px}
.video-kicker{font-size:13px;font-weight:650;letter-spacing:.12em;color:#927340}
.video-heading h1{font-size:clamp(26px,3.2vw,38px);letter-spacing:-.04em;margin:12px 0;line-height:1.3}
.video-heading>div>p{font-size:16px;color:#817665;margin:0;line-height:1.7}
.video-howto{border-left:2px solid #d7be89;padding:4px 0 4px 20px;flex-shrink:0}
.video-howto>span{font-size:12px;color:#92836d}.video-howto p{font-size:14px;margin:9px 0 0;line-height:1.6}.video-howto b{font-size:11px;color:#a27c3a;margin-right:5px}.video-howto i{font-style:normal;color:#b4a58d;margin:0 10px}
.video-filters{display:flex;gap:8px;overflow-x:auto;padding:0 0 16px;border-bottom:1px solid #ded6c7}
.video-filter{flex-shrink:0;background:transparent;border:0;border-radius:6px;padding:10px 16px;color:#786d5d;min-height:44px;font-size:14px}
.video-filter:hover{background:#eee7d9;color:#55412b}.video-filter[aria-pressed=true]{background:#493b28;color:#fff9ed}
.video-results{display:flex;align-items:center;justify-content:space-between;margin:28px 0 18px}.video-results h2{font-size:18px;margin:0;font-weight:650}.video-results>span{font-size:13px;color:#928572}
.video-items{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:24px;row-gap:12px}
.video-item{display:grid;grid-template-columns:34px minmax(0,1fr) auto;align-items:start;gap:14px;background:#fffdf8;border:1px solid #ebe4d6;border-radius:10px;padding:24px 20px;min-height:126px}
.video-number{font-size:24px;line-height:1.1;letter-spacing:-.06em;font-weight:500;color:#c0a775;margin-top:25px;font-variant-numeric:tabular-nums}
.video-meta{font-size:12px;color:#9b8b73;line-height:1.5;margin:0 0 10px}.video-item h3{font-size:17px;line-height:1.65;font-weight:650;margin:0;color:#3f3425;overflow-wrap:anywhere}
.video-action{align-self:center;max-width:115px;text-align:right}.video-copy{background:transparent;border:0;color:#8b642a;font-size:13px;font-weight:600;padding:8px 0 8px 8px;white-space:nowrap;min-height:44px}.video-copy:hover{color:#43311b;text-decoration:underline;text-underline-offset:5px}.video-copy:disabled{opacity:.6;cursor:wait}.video-feedback{font-size:12px;line-height:1.6;color:#6c7751;margin:4px 0 0}.video-feedback[data-type=error]{color:#a12518}
@media(max-width:900px){.video-heading{align-items:flex-start;flex-direction:column;gap:22px}.video-howto{padding-left:14px}.video-items{gap:12px}.video-item{padding:20px 16px;gap:10px;grid-template-columns:28px minmax(0,1fr)}.video-action{grid-column:2;text-align:left;max-width:none;display:flex;align-items:center;gap:12px}.video-copy{padding:4px 0}.video-feedback{margin:0}.video-number{font-size:21px}}
@media(max-width:600px){body[data-page=videos] main{margin:32px auto 48px}.video-heading{margin-bottom:28px}.video-heading h1{font-size:28px;max-width:320px}.video-heading>div>p{font-size:14px}.video-items{grid-template-columns:1fr}.video-item{padding:20px;min-height:0}.video-filter{padding:10px 13px}.video-results{margin-top:24px}.video-item h3{font-size:17px}}
.video-topic+.video-topic{margin-top:40px}.video-topic-title{font-size:21px;margin:0 0 22px;padding-bottom:12px;border-bottom:1px solid #ded6c7;font-weight:650;color:#493b28}.video-subtopic+.video-subtopic{margin-top:26px}.video-subtopic-title{font-size:15px;font-weight:600;margin:0 0 14px;color:#8b7045;display:flex;align-items:center;gap:10px}.video-subtopic-title:before{content:'';width:3px;height:16px;border-radius:2px;background:#c7a363}
/* User management and invitation module. */
.cth-denied{margin:32px;font:16px system-ui;color:#403526}.cth-admin{background:#f8f6f0}.cth-admin main{max-width:none;margin:0;padding:0}.cth-admin-brand{display:flex;justify-content:space-between;align-items:center;background:#fffdf8;padding:18px max(24px,calc((100vw - 1200px)/2));border-bottom:1px solid #e7ddcb}.cth-admin-brand span{font-size:13px;color:#8d7958}.cth-admin-main{max-width:1248px;margin:36px auto;padding:0 24px 40px}.cth-admin h1{font-size:30px}.cth-tabs,.cth-tools,.cth-pagination,.cth-dialog-actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin:18px 0}.cth-tools label{display:flex;align-items:center;gap:6px;font-size:13px}.cth-tabs{border-bottom:1px solid #ded5c3;padding-bottom:16px}.cth-action,.cth-tabs button{min-height:40px;padding:8px 13px;border:1px solid #d9cdb6;border-radius:6px;color:#806132;background:transparent;font:inherit}.cth-primary,.cth-tabs .selected,.cth-pagination .selected{min-height:40px;padding:8px 14px;background:#493b27;color:#fff8eb;border:1px solid #493b27;border-radius:6px}.cth-action:disabled{opacity:.4}.cth-tools input:not([type=checkbox]),.cth-tools select,.cth-pagination select,.cth-dialog input:not([type=checkbox]){padding:10px;border:1px solid #ddcfb6;border-radius:5px;background:white;min-height:42px;max-width:100%}.cth-tools input[type=search]{width:290px}.cth-tools input[type=number]{width:78px}.cth-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:25px 0}.cth-stats section{padding:24px;background:#fffdf8;border:1px solid #e7dfce;border-radius:10px}.cth-stats span{font-size:13px;color:#8a785b}.cth-stats strong{display:block;font-size:30px;margin-top:12px;font-weight:550}.cth-table-wrap{overflow:auto;border:1px solid #e6dcc9;border-radius:8px;background:#fffdf8}.cth-table{border-collapse:collapse;width:100%;font-size:14px;white-space:nowrap}.cth-table th,.cth-table td{padding:18px 16px;border-bottom:1px solid #eee5d5;text-align:left}.cth-table th{font-size:12px;font-weight:500;background:#f0eade;color:#8b7755}.cth-table small{display:block;color:#9a8868;font-size:12px;margin-top:5px}.cth-table td button{font-size:13px}.cth-inline{font-size:13px;margin-left:8px;color:#7a6b4e}.cth-dialog{color:#403526;background:#fffdf8;border:1px solid #ddcfb6;border-radius:12px;padding:28px;width:460px;max-width:calc(100vw - 30px);max-height:90dvh;overflow:auto}.cth-dialog::backdrop{background:#34271566}.cth-dialog label{display:grid;gap:8px;margin:18px 0}.cth-dialog label:has([type=checkbox]){display:flex}.cth-dialog-actions{justify-content:flex-end}.cth-dialog dl{display:grid;grid-template-columns:100px 1fr;gap:16px}.cth-dialog dd{margin:0;overflow-wrap:anywhere}.cth-dialog small{display:block;color:#99866a}.cth-trend{display:flex;align-items:end;gap:10px;height:170px;overflow:auto;border:1px solid #e6dcc9;padding:18px;background:#fffdf8}.cth-trend>div{min-width:28px;flex:1;text-align:center;font-size:11px;color:#9a8868}.cth-trend i{display:block;background:#c5a875;max-width:45px;margin:8px auto}.cth-trend b{font-weight:500}.cth-empty{padding:40px 0;color:#8c7755}body[data-page=invites] h1{font-size:30px}@media(max-width:700px){.cth-stats{grid-template-columns:repeat(2,1fr);gap:10px}.cth-stats section{padding:16px}.cth-admin-main{padding:0 16px}.cth-admin-brand{padding:16px}.cth-admin-brand img{width:175px}.cth-tools input[type=search]{width:100%}.cth-tools{align-items:stretch}.cth-dialog{padding:20px}.cth-table th,.cth-table td{padding:15px 12px}}

.cth-user-link{color:#795a28;text-decoration:none;font-weight:600}.cth-user-link:hover{text-decoration:underline}.cth-user-link:focus-visible{outline:2px solid #93723b;outline-offset:4px}.cth-row-actions .cth-action+.cth-action{margin-left:10px}.cth-row-actions{white-space:nowrap}.cth-date-range{display:flex;gap:8px;align-items:end;flex-wrap:wrap}.cth-date-range label{display:flex;flex-direction:column;gap:4px}.cth-date-range input{min-width:140px}.cth-invite-search{justify-content:flex-end}.cth-trend{overflow-x:auto}.cth-trend>div{min-width:32px;flex-shrink:0}

.cth-login-tabs{display:flex;gap:8px;margin:20px 0}.cth-login-tabs button{flex:1;border:1px solid #ded6c8;border-radius:8px;background:transparent;padding:12px 8px;color:#75664f;cursor:pointer}.cth-login-tabs .selected{background:#4a3b27;color:#fff;border-color:#4a3b27}.cth-password-settings{border-top:1px solid #e4dccf;margin-top:32px;padding-top:20px}.cth-password-settings h2{font-size:22px}.cth-password-settings input{width:100%}

.login-card .notice:empty,.cth-password-settings .notice:empty{display:none}