.portal-page { --portal-ink: #17324b; --portal-muted: #59707c; --portal-green: #35735e; --portal-coral: #d3654c; --portal-line: #d7e0dc; background: #f5f7f2; color: var(--portal-ink); font-family: var(--font-body), "PingFang SC", "Microsoft YaHei", sans-serif; }
.portal-page .site-header { background: #f5f7f2; }
.portal-page .main-nav { gap: 1.5rem; }
.portal-page .nav-list { gap: 1.15rem; }
.portal-page .nav-list a, .portal-page .nav-contact { font-size: .86rem; }
.portal-page .nav-right { align-items: center; gap: 1rem; }
.portal-page .nav-list a:hover, .portal-page .nav-contact:hover, .portal-footer a:hover { color: var(--portal-green); }
.portal-language-bar { align-items: center; display: flex; gap: .85rem; justify-content: flex-end; margin: 0 0 1rem; }
.portal-language-label { color: var(--portal-muted); font-size: .82rem; font-weight: 600; }
.portal-language-picker { align-items: center; background: #e4ebe5; border: 1px solid #cbd9ce; border-radius: 999px; display: inline-flex; gap: .2rem; padding: .28rem; }
.portal-language-picker button { background: transparent; border: 0; border-radius: 999px; color: var(--portal-muted); cursor: pointer; font: 600 .88rem var(--font-body); min-height: 40px; padding: .5rem 1rem; }
.portal-language-picker button:hover { color: var(--portal-ink); }
.portal-language-picker button.is-active { background: #fff; box-shadow: 0 1px 4px #17324b1c; color: var(--portal-green); }
.portal-language-picker button:focus-visible { outline: 2px solid var(--portal-green); outline-offset: 2px; }
.portal-main { margin: 0 auto; max-width: 1180px; padding: 3rem 2rem 5rem; }
.portal-intro { align-items: center; background: linear-gradient(120deg, #edf2eb 0%, #f5f7f2 64%, #e8efea 100%); border: 1px solid #e1e9e2; border-radius: 10px; display: flex; gap: 2.5rem; justify-content: space-between; overflow: hidden; padding: 2.5rem 3rem; position: relative; }
.portal-intro::after { background: radial-gradient(circle, #35735e18 0, transparent 70%); content: ""; height: 24rem; pointer-events: none; position: absolute; right: -9rem; top: -12rem; width: 24rem; }
.portal-intro-copy { max-width: 660px; }
.portal-intro .eyebrow, .portal-dashboard .eyebrow, .portal-section-block .eyebrow { color: var(--portal-green); font-size: .75rem; font-weight: 700; letter-spacing: .12em; margin-bottom: .6rem; text-transform: uppercase; }
.portal-intro h1 { color: var(--portal-ink); font-size: clamp(2.8rem, 5vw, 4.15rem); margin: 0 0 .65rem; }
.portal-intro-copy > p:last-child { color: var(--portal-muted); font-size: 1.02rem; line-height: 1.7; margin: 0; max-width: 38rem; }
.portal-intro-card { background: #ffffffc9; border: 1px solid #fff; border-radius: 8px; flex: 0 0 min(34%, 310px); padding: 1.2rem 1.35rem; position: relative; z-index: 1; }
.portal-intro-card .eyebrow { color: var(--portal-ink); font-size: .88rem; letter-spacing: 0; line-height: 1.5; text-transform: none; }
.portal-intro-card ul { color: var(--portal-muted); display: grid; font-size: .82rem; gap: .65rem; list-style: none; margin: .9rem 0 0; padding: 0; }
.portal-intro-card li { align-items: center; display: flex; gap: .55rem; }
.portal-intro-card li::before { background: var(--portal-green); border-radius: 50%; content: ""; flex: 0 0 6px; height: 6px; }
.portal-plan { border-left: 3px solid var(--portal-coral); display: grid; gap: .25rem; min-width: 190px; padding: .25rem 0 .25rem 1rem; }
.plan-price { color: var(--portal-ink); font-size: 1.7rem; font-weight: 700; }
.plan-price small { color: var(--portal-muted); font-size: .85rem; font-weight: 500; }
.portal-plan > span:last-child { color: var(--portal-muted); font-size: .86rem; }
.portal-status { background: #e7f1eb; border: 1px solid #d5e6db; border-left: 3px solid var(--portal-green); border-radius: 5px; color: #244e40; margin: 1.5rem 0 0; padding: .85rem 1rem; }
.portal-status[data-kind="error"] { background: #fff0ec; border-color: var(--portal-coral); color: #873f30; }
.portal-auth-layout { align-items: stretch; display: grid; gap: 3rem; grid-template-columns: minmax(0, 1fr) minmax(220px, .7fr); margin: 2.5rem auto 0; max-width: 940px; }
.portal-auth-section { background: #fff; border: 1px solid var(--portal-line); border-radius: 8px; box-shadow: 0 14px 35px #17324b0a; margin: 0; max-width: none; padding: 1.4rem 1.7rem; }
.portal-auth-switch { border-bottom: 1px solid var(--portal-line); display: flex; gap: 1.5rem; }
.portal-tab { background: none; border: 0; border-bottom: 2px solid transparent; color: var(--portal-muted); cursor: pointer; font: 600 .92rem var(--font-body); padding: .75rem .1rem; }
.portal-tab.is-active { border-color: var(--portal-green); color: var(--portal-ink); }
.portal-auth-panel { padding: 1.5rem 0 .5rem; }
.portal-auth-aside { align-self: center; padding: 1rem 0; }
.portal-auth-aside .eyebrow { color: var(--portal-green); font-size: .76rem; font-weight: 700; letter-spacing: .1em; line-height: 1.5; text-transform: uppercase; }
.portal-auth-aside h2 { color: var(--portal-ink); font-size: 1.6rem; line-height: 1.35; margin: .6rem 0 1.25rem; }
.portal-auth-aside > p:not(.eyebrow) { color: var(--portal-muted); font-size: .9rem; line-height: 1.65; margin: .7rem 0; }
.portal-auth-panel h2, .portal-dashboard h2, .portal-section-block h2 { color: var(--portal-ink); font-size: 1.55rem; margin: 0 0 1rem; }
.portal-form { display: grid; gap: .6rem; }
.portal-form label, .portal-form legend { color: var(--portal-ink); font-size: .87rem; font-weight: 600; }
.portal-form input:not([type="radio"]), .portal-form textarea, .portal-form select { background: #fff; border: 1px solid #cbd6d1; border-radius: 3px; color: var(--portal-ink); font: inherit; margin-bottom: .45rem; min-height: 46px; padding: .7rem .8rem; width: 100%; }
.portal-form textarea { min-height: 90px; resize: vertical; }
.portal-form input:focus, .portal-form textarea:focus, .portal-form select:focus { border-color: var(--portal-green); outline: 2px solid #35735e2b; }
.portal-button { align-items: center; border: 1px solid transparent; border-radius: 3px; cursor: pointer; display: inline-flex; font: 600 .9rem var(--font-body); justify-content: center; min-height: 42px; padding: .65rem 1rem; transition: background .16s ease, border-color .16s ease; }
.portal-button:disabled { cursor: not-allowed; opacity: .6; }
.portal-button-primary { background: var(--portal-green); color: white; margin-top: .35rem; }
.portal-button-primary:hover:not(:disabled) { background: #285b49; }
.portal-button-quiet { background: transparent; border-color: #bccbc4; color: var(--portal-ink); }
.portal-button-quiet:hover:not(:disabled) { background: #e7eee9; }
.portal-text-button { background: none; border: 0; color: var(--portal-green); cursor: pointer; justify-self: start; padding: .45rem 0; text-decoration: underline; }
.portal-auth-note { border-left: 2px solid #d8a05a; color: var(--portal-muted); font-size: .86rem; margin-top: 1.2rem; padding-left: .8rem; }
.portal-pending-notice { background: #e9f1ec; border-left: 3px solid var(--portal-green); margin-top: 1.5rem; padding: 1.1rem 1.25rem; }
.portal-pending-notice h2 { color: var(--portal-ink); font: 600 1rem var(--font-body); margin: 0 0 .35rem; }
.portal-pending-notice p { color: var(--portal-muted); font-size: .9rem; margin: 0; }
.portal-pending-notice a { color: var(--portal-green); font-weight: 600; overflow-wrap: anywhere; text-decoration: underline; }
.portal-dashboard { margin-top: 2rem; }
.portal-dashboard-head { align-items: center; display: flex; justify-content: space-between; margin-bottom: 2rem; }
.portal-dashboard-head > div { background: #e9eee9; border-radius: 6px; flex: 1; margin-right: 1rem; padding: 1.1rem 1.3rem; }
.portal-dashboard-head h2 { margin: 0; }
html[lang="zh-CN"] .portal-greeting-gap { display: none; }
.portal-section-block { background: #fff; border: 1px solid var(--portal-line); border-radius: 7px; margin-top: 1.25rem; padding: 1.35rem 1.5rem; }
.portal-section-block > p:not(.eyebrow) { color: var(--portal-muted); max-width: 660px; }
.portal-student-settings { align-items: end; display: flex; gap: 2rem; justify-content: space-between; }
.portal-student-settings h2 { margin-bottom: .35rem; }
.portal-student-settings #assigned-teacher-detail { color: var(--portal-muted); font-size: .88rem; margin: 0; }
.portal-timezone-form { align-items: end; display: grid; gap: .45rem; grid-template-columns: minmax(190px, 1fr) auto; min-width: min(100%, 430px); }
.portal-timezone-form label { color: var(--portal-ink); font-size: .84rem; font-weight: 600; grid-column: 1 / -1; }
.portal-timezone-form select { background: #fff; border: 1px solid #cbd6d1; border-radius: 3px; color: var(--portal-ink); font: inherit; min-height: 42px; min-width: 0; padding: .55rem .7rem; }
.portal-assessment-form { max-width: 720px; }
.portal-assessment-form fieldset { border: 0; display: grid; gap: .5rem; margin: .4rem 0 1rem; }
.portal-choice { align-items: center; display: flex; font-weight: 400 !important; gap: .6rem; }
.portal-choice input { accent-color: var(--portal-green); }
.optional-label { color: var(--portal-muted); font-size: .78rem; font-weight: 400; margin-left: .25rem; }
.portal-list { display: grid; }
.portal-teacher-student { border-bottom: 1px solid #e7ece8; padding: .8rem 0; }
.portal-teacher-student > summary { color: var(--portal-ink); cursor: pointer; font-weight: 600; padding: .35rem 0; }
.portal-teacher-student > .portal-list { padding-left: 1rem; }
.portal-row { align-items: center; border-bottom: 1px solid #e7ece8; display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; min-height: 76px; padding: .8rem 0; }
.portal-row h3 { color: var(--portal-ink); font: 600 .98rem var(--font-body); margin: 0 0 .2rem; }
.portal-row p { color: var(--portal-muted); font-size: .85rem; margin: 0; }
.portal-lesson-info { border-left: 2px solid var(--portal-line); display: grid; flex: 1 0 100%; gap: .45rem; margin: .1rem 0 .2rem; padding: .25rem 0 .25rem .8rem; }
.portal-lesson-info h4 { color: var(--portal-ink); font: 600 .9rem var(--font-body); margin: 0; }
.portal-lesson-info p { line-height: 1.5; white-space: pre-wrap; }
.portal-lesson-info > a { color: var(--portal-green); font-size: .87rem; font-weight: 600; overflow-wrap: anywhere; text-decoration: underline; }
.portal-lesson-form { display: grid; gap: .5rem; grid-template-columns: repeat(2, minmax(0, 1fr)); margin-top: .35rem; max-width: 760px; }
.portal-lesson-form label { color: var(--portal-ink); display: grid; font-size: .8rem; font-weight: 600; gap: .25rem; }
.portal-lesson-form label:nth-child(2) { grid-row: span 2; }
.portal-lesson-form input, .portal-lesson-form textarea { background: #fff; border: 1px solid #cbd6d1; border-radius: 3px; color: var(--portal-ink); font: 400 .88rem var(--font-body); min-height: 40px; min-width: 0; padding: .55rem .65rem; width: 100%; }
.portal-lesson-form textarea { resize: vertical; }
.portal-lesson-form button { justify-self: start; }
.portal-attendance-actions { display: flex; flex: 1 0 100%; flex-wrap: wrap; gap: .55rem; }
.portal-empty { color: var(--portal-muted); font-size: .9rem; padding: 1rem 0; }
.portal-teacher-grid { display: grid; gap: 3rem; grid-template-columns: minmax(240px, .8fr) minmax(0, 1.2fr); }
.portal-admin-overview { display: grid; gap: 1rem; grid-template-columns: repeat(3, minmax(0, 1fr)); margin: 0 0 2rem; }
.portal-admin-data-note { background: #fff8e9; border: 1px solid #ecd7ad; border-radius: 5px; color: #705322; font-size: .85rem; line-height: 1.55; margin: -1rem 0 1.25rem; padding: .8rem 1rem; }
.portal-admin-load-error { background: #fff0ec; border: 1px solid #f0c8bd; border-left: 4px solid var(--portal-coral); border-radius: 6px; color: #783b30; margin: 0 0 1.25rem; padding: 1rem 1.2rem; }
.portal-admin-load-error > p { line-height: 1.55; margin: 0 0 .45rem; }
.portal-admin-load-error .portal-admin-error-detail { font-size: .82rem; overflow-wrap: anywhere; }
.portal-admin-load-error .portal-button { margin-top: .35rem; }
.portal-admin-overview article { background: #fff; border: 1px solid var(--portal-line); border-radius: 6px; padding: 1.2rem 1.35rem; }
.portal-admin-overview article > span { color: var(--portal-green); font-size: 1.9rem; font-weight: 700; line-height: 1; }
.portal-admin-overview p { color: var(--portal-muted); font-size: .85rem; margin: .55rem 0 0; }
.portal-admin-email-tools { align-items: center; background: #edf3ee; border: 1px solid #dce7de; border-radius: 7px; display: flex; gap: 1.5rem; justify-content: space-between; margin: 0 0 1.25rem; padding: 1.1rem 1.3rem; }
.portal-admin-email-tools .eyebrow { color: var(--portal-green); font-size: .7rem; font-weight: 700; letter-spacing: .1em; margin: 0 0 .25rem; text-transform: uppercase; }
.portal-admin-email-tools h2 { color: var(--portal-ink); font-size: 1.15rem; margin: 0 0 .3rem; }
.portal-admin-email-tools p:not(.eyebrow) { color: var(--portal-muted); font-size: .82rem; margin: 0; }
.portal-admin-email-actions { display: flex; flex-wrap: wrap; gap: .6rem; }
.portal-section-heading { align-items: end; display: flex; gap: 1.5rem; justify-content: space-between; }
.portal-section-heading h2 { margin-bottom: 0; }
.portal-admin-search { color: var(--portal-ink); display: grid; font-size: .8rem; font-weight: 600; gap: .35rem; min-width: min(100%, 260px); }
.portal-admin-search input, .portal-admin-search select { background: #fff; border: 1px solid #cbd6d1; border-radius: 3px; color: var(--portal-ink); font: 400 .9rem var(--font-body); min-height: 42px; padding: .55rem .7rem; width: 100%; }
.portal-admin-help { color: var(--portal-muted); font-size: .87rem; line-height: 1.55; margin: .7rem 0 1rem; }
.portal-admin-student-row { align-items: center; gap: 1.25rem; }
.portal-admin-student-actions { align-items: center; display: flex; flex-wrap: wrap; gap: .55rem; }
.portal-admin-student-actions select { background: #fff; border: 1px solid #cbd6d1; border-radius: 3px; color: var(--portal-ink); font: 400 .85rem var(--font-body); min-height: 42px; min-width: 175px; padding: .5rem .65rem; }
.portal-admin-student-actions .portal-button { font-size: .82rem; }
.portal-admin-facts { background: #fff; border: 1px solid var(--portal-line); border-radius: 6px; display: grid; gap: .65rem 1.5rem; grid-template-columns: repeat(2, minmax(0, 1fr)); margin: 1rem 0 1.5rem; padding: 1rem 1.2rem; }
.portal-admin-facts p { color: var(--portal-muted); font-size: .88rem; line-height: 1.5; margin: 0; overflow-wrap: anywhere; }
.portal-admin-facts strong { color: var(--portal-ink); }
.portal-admin-subheading { color: var(--portal-ink); font-size: 1.1rem; margin: 1.5rem 0 .4rem; }
.portal-dashboard [data-role-view] > .portal-section-block:first-child { margin-top: 0; }
.portal-footer { border-top: 1px solid var(--portal-line); display: flex; gap: 1.4rem; justify-content: center; padding: 1.4rem 1rem; }
.portal-footer a { color: var(--portal-muted); font-size: .85rem; }
[hidden] { display: none !important; }
@media (max-width: 768px) {
	.portal-main { padding: 2rem 1.25rem 3.5rem; }
	.portal-intro { align-items: start; flex-direction: column; gap: 1.4rem; padding: 1.7rem 1.4rem; }
	.portal-intro h1 { font-size: 2.8rem; }
	.portal-intro-card { flex-basis: auto; width: 100%; }
	.portal-auth-layout { gap: 1rem; grid-template-columns: 1fr; margin-top: 1.5rem; }
	.portal-auth-section { padding: 1.1rem 1.1rem; }
	.portal-auth-aside { display: none; }
	.portal-teacher-grid { grid-template-columns: 1fr; gap: 0; }
	.portal-dashboard-head > div { margin-right: .75rem; }
	.portal-section-block { padding: 1.1rem; }
	.portal-student-settings { align-items: stretch; flex-direction: column; gap: 1.2rem; }
	.portal-timezone-form { grid-template-columns: 1fr; min-width: 0; }
	.portal-timezone-form label { grid-column: auto; }
	.portal-row { align-items: start; }
	.portal-row .portal-button { flex: 0 0 auto; }
	.portal-lesson-form { grid-template-columns: minmax(0, 1fr); }
	.portal-lesson-form label:nth-child(2) { grid-row: auto; }
	.portal-admin-overview { grid-template-columns: 1fr; }
	.portal-admin-email-tools { align-items: stretch; flex-direction: column; gap: .9rem; }
	.portal-admin-email-actions { align-items: stretch; flex-direction: column; }
	.portal-section-heading { align-items: stretch; flex-direction: column; gap: .8rem; }
	.portal-admin-search { min-width: 0; }
	.portal-admin-student-actions { align-items: stretch; flex: 1 0 100%; }
	.portal-admin-student-actions select { flex: 1 1 100%; }
	.portal-admin-facts { grid-template-columns: 1fr; }
	.portal-language-bar { justify-content: space-between; }
}