:root {
  --ink: #2b2926;
  --ink-deep: #3b3732;
  --muted: #6f6a61;
  --paper: #f7f3ea;
  --paper-deep: #eee7da;
  --white: #fffdf8;
  --red: #c94135;
  --red-dark: #9f3028;
  --green: #526957;
  --line: #dcd4c6;
  --module-bg: #f8f3f1;
  --module-border: #e7d8d4;
  --shadow: 0 18px 50px rgba(65, 51, 35, .09);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: "Noto Sans SC", sans-serif; }
button, input, textarea { font: inherit; }
a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }

.site-header { height: 78px; padding: 0 clamp(20px, 5vw, 72px); display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid rgba(96,78,56,.13); background: rgba(247,243,234,.93); backdrop-filter: blur(14px); position: sticky; top: 0; z-index: 20; }
.brand { display: flex; align-items: center; gap: 11px; }
.brand-mark { width: 42px; height: 42px; display: grid; place-items: center; color: var(--white); background: var(--red); border-radius: 50% 45% 52% 43%; font-family: "Noto Serif JP", serif; font-weight: 700; transform: rotate(-3deg); }
.brand b, .brand small { display: block; }
.brand b { font-family: "Noto Serif JP", serif; letter-spacing: .12em; }
.brand small { color: var(--muted); font-size: 10px; letter-spacing: .08em; margin-top: 2px; }
nav { display: flex; align-items: center; gap: 28px; font-size: 14px; }
nav a:not(.nav-progress):hover { color: var(--red); }
.nav-progress { min-width:180px; padding:9px 15px; border:1px solid var(--ink); border-radius:6px; display:grid; gap:2px; line-height:1.25; }
.nav-progress b { font-size:13px; }
.nav-progress small { color:var(--red); font-size:11px; white-space:nowrap; }
.nav-progress.is-subtle { min-width:0; padding:7px 10px; border-color:var(--line); }
.nav-progress.is-subtle b { font-size:12px; }
.nav-progress.is-subtle small { color:var(--muted); font-size:10px; }
.menu-button { display: none; border: 0; background: transparent; }

main { min-height: calc(100vh - 78px); }
.container { width: min(1120px, calc(100% - 40px)); margin: auto; }
.eyebrow { color: var(--red); text-transform: uppercase; letter-spacing: .18em; font-size: 12px; font-weight: 700; }
.display { font-family: "Noto Serif JP", serif; font-size: clamp(42px, 6.5vw, 86px); line-height: 1.12; letter-spacing: -.03em; margin: 18px 0 24px; }
.display em { color: var(--red); font-style: normal; position: relative; white-space: nowrap; }
.display em::after { content: ""; position: absolute; left: 2%; right: -2%; bottom: -5px; height: 8px; background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='8' viewBox='0 0 200 8'%3E%3Cpath d='M2 5C55 2 144 2 198 4' fill='none' stroke='%23c94135' stroke-width='3' stroke-linecap='round'/%3E%3C/svg%3E") center/100% 100% no-repeat; }
.hero { min-height: calc(100vh - 78px); display: grid; grid-template-columns: minmax(0,1fr) minmax(400px,.92fr); align-items: center; gap: clamp(36px,5vw,76px); padding-block: 38px; position: relative; }
.hero-copy > p { max-width: 570px; color: var(--muted); font-size: 18px; line-height: 1.9; }
.hero-copy-mobile { display:none; }
.actions { display: flex; align-items: center; gap: 14px; margin-top: 34px; flex-wrap: wrap; }
.button { min-height: 48px; padding: 0 22px; display: inline-flex; align-items: center; justify-content: center; gap: 12px; border: 1px solid var(--ink); border-radius: 4px; background: transparent; cursor: pointer; font-weight: 600; transition: .2s; }
.button:hover { transform: translateY(-2px); box-shadow: 0 8px 20px rgba(50,40,30,.1); }
.button.primary { color: var(--white); background: var(--red); border-color: var(--red); }
.button.primary:hover { background: var(--red-dark); }
.button.text { border-color: transparent; padding-inline: 6px; }
.button.text::after, .arrow { content: "→"; font-size: 20px; }
.hero-card { position: relative; min-height: 610px; display: grid; place-items: center; }
.sun { position: absolute; width: 340px; height: 340px; border-radius: 50%; background: #e8b9a6; opacity: .55; right: 2%; top: 5%; }
.hero-photo { width:min(480px,100%); aspect-ratio:.72; margin:0; position:relative; background:var(--white); box-shadow:var(--shadow); padding:18px 18px 64px; transform:rotate(1.25deg); }
.hero-photo::before { content:""; position:absolute; inset:10px; border:1px solid rgba(97,77,54,.16); pointer-events:none; z-index:2; }
.hero-photo img { width:100%; height:100%; display:block; object-fit:cover; object-position:50% 53%; filter:saturate(.88) contrast(.97) sepia(.04); }
.hero-photo figcaption { position:absolute; left:22px; right:22px; bottom:17px; display:flex; align-items:end; justify-content:space-between; gap:16px; }
.hero-photo figcaption span { color:var(--muted); font:600 10px "Noto Sans SC",sans-serif; text-transform:uppercase; letter-spacing:.14em; }
.hero-photo figcaption b { font:600 14px "Noto Serif JP",serif; letter-spacing:.05em; }
.stamp { position: absolute; left: -28px; bottom: 14px; width: 86px; height: 86px; border: 3px double var(--red); color: var(--red); border-radius: 50%; display: grid; place-items: center; text-align:center; font: 700 17px/1.2 "Noto Serif JP",serif; transform: rotate(-11deg); background: var(--paper); }
.proof { display: flex; gap: 36px; margin-top: 50px; }
.proof b { font: 700 24px "Noto Serif JP",serif; display: block; }
.proof span { color: var(--muted); font-size: 12px; }

.section { padding: 92px 0; }
.section-dark { color: var(--white); background: var(--ink-deep); }
.section-heading { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 38px; }
.section-heading h2 { font: 700 clamp(30px,4vw,48px) "Noto Serif JP",serif; margin: 10px 0 0; }
.section-heading p { color: var(--muted); max-width: 460px; line-height: 1.8; }
.section-dark .section-heading p { color: #bbb3a8; }
.loop-line { margin-top:14px; color:#c9bba9; font-size:14px; letter-spacing:.04em; }
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: #5a544d; }
.step { background: var(--ink-deep); padding: 32px; min-height: 270px; }
.step-number { color: #c9bba9; font-family: "Noto Serif JP",serif; }
.step h3 { margin: 46px 0 12px; font: 600 21px "Noto Serif JP",serif; }
.step p { color: #bbb3a8; line-height: 1.8; font-size: 14px; }

.catalog-hero { padding: 70px 0 44px; border-bottom: 1px solid var(--line); }
.catalog-hero h1 { font: 700 clamp(40px,6vw,68px) "Noto Serif JP",serif; margin: 12px 0 16px; }
.catalog-hero p { color: var(--muted); max-width: 620px; line-height: 1.8; }
.catalog-toolbar { display:flex; justify-content:space-between; align-items:center; gap:20px; padding: 25px 0; }
.catalog-toolbar p { color: var(--muted); }
.legend { display:flex; gap:20px; font-size:13px; color:var(--muted); }
.legend i { display:inline-block; width:8px; height:8px; border-radius:50%; margin-right:7px; background:var(--line); }
.legend .done i { background:var(--green); }
.lesson-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:16px; padding-bottom:90px; }
.lesson-card { min-height: 210px; padding: 24px; background:var(--white); border:1px solid transparent; display:flex; flex-direction:column; transition:.2s; position:relative; }
.lesson-card:hover { border-color:var(--red); transform:translateY(-3px); box-shadow:var(--shadow); }
.lesson-card .meta { display:flex; justify-content:space-between; color:var(--muted); font-size:12px; }
.lesson-card h2 { font:600 22px "Noto Serif JP",serif; margin:28px 0 8px; }
.lesson-card .jp { color:var(--red); font-size:14px; }
.lesson-card .card-foot { margin-top:auto; display:flex; justify-content:space-between; align-items:center; font-size:12px; color:var(--muted); }
.lesson-card .card-arrow { color:var(--ink); font-size:20px; }
.lesson-card.done::after { content:"✓"; position:absolute; right:20px; top:48px; width:24px; height:24px; display:grid; place-items:center; color:var(--white); background:var(--green); border-radius:50%; font-size:12px; }
.lesson-card.pending { background:rgba(255,253,248,.58); }
.lesson-card.pending .jp { color:var(--muted); }

.lesson-top { padding: 44px 0 28px; display:flex; justify-content:space-between; gap:30px; align-items:end; }
.breadcrumbs { color:var(--muted); font-size:13px; }
.lesson-top h1 { font:700 clamp(32px,5vw,56px) "Noto Serif JP",serif; margin:18px 0 8px; }
.lesson-top .jp-title { color:var(--red); font-size:18px; }
.lesson-count { color:var(--muted); font-family:"Noto Serif JP",serif; white-space:nowrap; }
.lesson-count b { color:var(--ink); font-size:34px; }
.lesson-layout { display:grid; grid-template-columns:minmax(0,1.6fr) minmax(280px,.7fr); gap:28px; padding-bottom:90px; }
.video { aspect-ratio:16/9; background:#292825; color:var(--white); display:grid; place-items:center; position:relative; overflow:hidden; }
.video::before { content:""; position:absolute; inset:0; background:radial-gradient(circle at 70% 35%, rgba(201,65,53,.38),transparent 28%), linear-gradient(125deg,transparent 48%,rgba(255,255,255,.05) 48%); }
.video.real-video { aspect-ratio:auto; background:#292825; }
.video.real-video::before { content:none; }
.video.real-video video { display:block; width:100%; height:auto; max-width:100%; background:#292825; }
.video-module-head { display:flex; align-items:center; gap:13px; padding:2px 6px 16px; background:transparent; }
.video-module-head h3 { margin:0 0 3px; font-size:15px; }
.video-module-head small { color:var(--muted); }
.play { width:72px; height:72px; border:1px solid rgba(255,255,255,.7); border-radius:50%; background:rgba(255,255,255,.08); color:white; cursor:pointer; z-index:1; font-size:23px; padding-left:7px; }
.video-caption { position:absolute; left:22px; bottom:18px; color:#cbc4ba; font-size:12px; }
.placeholder-media { text-align:center; }
.placeholder-media .play { opacity:.38; cursor:not-allowed; }
.media-placeholder { z-index:1; display:flex; flex-direction:column; gap:7px; margin-left:20px; text-align:left; }
.media-placeholder b { font-family:"Noto Serif JP",serif; }
.media-placeholder span { color:#cbc4ba; font-size:12px; }
.lesson-body { background:var(--white); padding:34px; }
.lesson-body h2 { font:600 25px "Noto Serif JP",serif; margin:0 0 12px; }
.lesson-body p { color:var(--muted); line-height:1.85; }
.phrase-box { margin-top:28px; border-left:4px solid var(--red); padding:18px 22px; background:var(--paper); }
.phrase-box strong { display:block; font:600 22px "Noto Serif JP",serif; }
.phrase-box span { color:var(--muted); display:block; margin-top:8px; }
.lesson-step-nav { margin-top:28px; display:grid; grid-template-columns:1fr 1fr; gap:8px; }
.lesson-step-nav button { min-width:0; padding:13px 14px; border:1px solid var(--line); background:var(--paper); color:var(--ink); text-align:left; cursor:pointer; transition:.18s; }
.lesson-step-nav button:hover { border-color:var(--red); }
.lesson-step-nav button b, .lesson-step-nav button span { display:inline; font-size:13px; line-height:1.5; }
.lesson-step-nav button span { color:var(--muted); }
.lesson-step-nav button.is-current { border-color:var(--red); background:rgba(201,65,53,.07); box-shadow:inset 3px 0 0 var(--red); }
.lesson-step-nav button.is-current::after { content:"当前 / 继续这里"; display:block; color:var(--red); font-size:11px; margin-top:5px; }
.lesson-step-nav-mobile { display:none; }
#lesson-step-1, #lesson-step-2, #lesson-step-3, #lesson-step-4 { scroll-margin-top:96px; }
#lesson-step-1 { padding:16px; border:1px solid var(--module-border); background:var(--module-bg); }
.side-stack { display:grid; gap:14px; align-content:start; }
.resource { background:var(--module-bg); padding:22px; border:1px solid var(--module-border); }
.resource-head { display:flex; gap:13px; align-items:center; }
.resource-icon { width:38px; height:38px; flex:0 0 38px; display:grid; place-items:center; border-radius:50%; background:var(--red); color:#fff; font-weight:600; }
.resource h3 { margin:0 0 3px; font-size:15px; }
.resource small { color:var(--muted); }
.download { margin-left:auto; color:var(--red); font-size:13px; }
.audio-player { margin-top:18px; display:flex; align-items:center; gap:12px; }
.audio-player button { width:38px; height:38px; border:0; border-radius:50%; background:var(--ink); color:var(--white); cursor:pointer; }
.audio-track { height:3px; flex:1; background:var(--line); position:relative; }
.audio-track::before { content:""; display:block; width:34%; height:100%; background:var(--red); }
.audio-player.is-disabled { opacity:.55; }
.audio-player.is-disabled button { cursor:not-allowed; }
.audio-list { display:grid; gap:16px; margin-top:20px; }
.audio-item { padding-top:16px; border-top:1px solid var(--line); }
.audio-item:first-child { padding-top:0; border-top:0; }
.audio-item > div { display:flex; justify-content:space-between; align-items:baseline; gap:12px; margin-bottom:9px; }
.audio-item b { font-size:13px; }
.audio-item small { color:var(--muted); }
.audio-item audio { display:block; width:100%; max-width:100%; height:38px; }
.task { border-color:var(--module-border); background:var(--module-bg); }
.task label { display:flex; gap:10px; align-items:flex-start; margin-top:15px; line-height:1.6; cursor:pointer; }
.task input { accent-color:var(--red); margin-top:5px; }
.task-placeholder { color:var(--muted); font-size:13px; line-height:1.7; margin:16px 0 0; }
.task-list { display:grid; gap:0; margin-top:16px; }
.task-list label { padding:16px 0; border-top:1px solid rgba(121,94,58,.18); margin:0; }
.task-list b, .task-list em { display:block; }
.task-list b { font-size:14px; }
.task-list em { color:var(--muted); font-style:normal; font-size:12px; margin-top:7px; }
.homework-instructions { color:var(--muted); font-size:13px; line-height:1.7; margin-top:17px; }
.homework-instructions p { margin:8px 0; }
.homework-instructions > b { color:var(--ink); }
.homework-instructions .homework-jp { color:var(--red); font-family:"Noto Serif JP",serif; font-size:15px; }
.self-check { display:grid; gap:6px; padding:14px; margin-top:16px; background:var(--paper); }
.self-check b { color:var(--ink); margin-bottom:3px; }
.recommended-upload { padding:11px 14px; border:1px solid var(--red); background:rgba(201,65,53,.05); }
.mission-content { margin-top:18px; color:var(--ink); font-size:14px; line-height:1.8; }
.mission-content > p { margin:0 0 14px; }
.mission-content ol, .mission-content ul { margin:10px 0 18px; padding-left:24px; }
.mission-content li { padding:8px 0; }
.mission-content li b, .mission-content li span { display:block; }
.mission-content li span { color:var(--muted); margin-top:4px; }
.mission-options { display:grid; grid-template-columns:1fr 1fr; gap:8px; margin:14px 0 18px; }
.mission-options span { padding:10px 12px; background:rgba(255,253,248,.65); }
.mission-formula, .mission-rule { padding:15px 17px; margin:16px 0; background:rgba(255,253,248,.65); border-left:3px solid #cfbda0; }
.mission-formula p, .mission-rule p { margin:6px 0 0; }
.mission-formula p, .mission-keyline, .mission-blank { font-family:"Noto Serif JP",serif; }
.mission-scenes { display:grid; gap:10px; margin:14px 0 18px; }
.mission-scenes section { padding:14px 16px; background:rgba(255,253,248,.65); }
.mission-scenes section p { color:var(--muted); margin:6px 0 0; }
.mission-challenge { padding:17px; margin-top:18px; border:1px solid var(--red); background:rgba(201,65,53,.04); }
.mission-challenge > b { color:var(--red); font-family:"Noto Serif JP",serif; }
.mission-challenge p { margin:8px 0 0; }
.mission-emphasis { border-left-color:var(--red); }
.mission-emphasis p { color:var(--red); font-family:"Noto Serif JP",serif; font-weight:600; }
.mission-closing { margin-top:18px; padding-top:16px; border-top:1px solid rgba(121,94,58,.3); font-family:"Noto Serif JP",serif; }
.final-mission { background:var(--module-bg); border-color:var(--module-border); color:var(--ink); }
.final-mission .resource-icon { background:var(--red); color:#fff; }
.final-mission .resource-head small { color:var(--muted); }
.final-mission .mission-content { color:var(--ink); }
.final-message { text-align:center; padding:12px 4px 4px; }
.final-message p { color:var(--muted); margin:12px 0; }
.final-sumimasen { color:var(--ink) !important; font:600 24px "Noto Serif JP",serif; }
.final-message strong { display:block; color:var(--red); font:600 23px "Noto Serif JP",serif; margin-top:30px; }
.homework textarea { width:100%; min-height:92px; resize:vertical; border:1px solid var(--line); background:var(--paper); padding:12px; margin:16px 0 10px; }
.file-label { display:inline-block; color:var(--red); font-size:13px; cursor:pointer; margin-bottom:14px; }
.file-label input { display:none; }
.audio-upload { margin-bottom:14px; }
.audio-upload.is-mvp-hidden { display:none; }
.audio-upload .file-label { margin-bottom:0; }
.upload-help { margin:7px 0 0; color:var(--muted); font-size:11px; line-height:1.55; }
.audio-file-status { margin-top:11px; padding:10px 12px; border:1px solid var(--line); background:var(--paper); font-size:12px; }
.audio-file-status[hidden] { display:none; }
.audio-file-status span { display:block; min-width:0; overflow-wrap:anywhere; }
.audio-file-status div { display:flex; gap:14px; margin-top:8px; }
.audio-file-status button { padding:0; border:0; background:transparent; color:var(--red); font-size:12px; cursor:pointer; }
.practice-confirm { display:flex; align-items:center; gap:10px; margin-top:18px; padding:13px 14px; border:1px solid #cfbda0; background:#f8f1e5; color:var(--ink); font-size:14px; font-weight:600; cursor:pointer; }
.practice-confirm input { width:17px; height:17px; margin:0; accent-color:var(--red); }
.practice-confirm-wrap > p { margin:7px 1px 0; color:var(--muted); font-size:11px; line-height:1.55; }
.submit-note { color:var(--green); font-size:12px; margin-top:9px; display:none; }
.next-bar { display:flex; justify-content:space-between; align-items:center; gap:20px; padding-top:24px; border-top:1px solid var(--line); grid-column:1/-1; }
.next-bar p { color:var(--muted); font-size:13px; }

footer { padding:45px clamp(20px,5vw,72px); display:grid; grid-template-columns:1fr 2fr 1fr; gap:24px; align-items:center; border-top:1px solid var(--line); color:var(--muted); font-size:12px; }
.footer-brand { color:var(--ink); font:700 18px "Noto Serif JP",serif; }
footer p { text-align:center; }
footer span { text-align:right; }
.toast { position:fixed; right:24px; bottom:24px; z-index:50; color:var(--white); background:var(--green); padding:13px 18px; box-shadow:var(--shadow); animation:toast 2.5s both; }
@keyframes toast { 0%{opacity:0;transform:translateY(10px)} 12%,85%{opacity:1;transform:none} 100%{opacity:0;transform:translateY(8px)} }

@media (min-width: 1025px) {
  .display { font-size:clamp(42px,5.8vw,76px); }
}

@media (max-width: 820px) {
  .site-header { height:68px; }
  .site-header nav { display:none; position:absolute; top:68px; left:0; right:0; padding:22px; background:var(--paper); border-bottom:1px solid var(--line); flex-direction:column; align-items:stretch; }
  .site-header nav.open { display:flex; }
  .menu-button { display:block; }
  .hero { grid-template-columns:1fr; padding-block:54px; }
  .hero-card { min-height:610px; }
  .hero-photo { width:min(440px,88vw); aspect-ratio:.7; }
  .hero-photo img { object-position:50% 54%; }
  .proof { margin-top:35px; }
  .steps { grid-template-columns:1fr 1fr; }
  .lesson-grid { grid-template-columns:1fr 1fr; }
  .lesson-layout { grid-template-columns:1fr; }
  .next-bar { grid-column:auto; }
  footer { grid-template-columns:1fr; text-align:center; }
  footer p, footer span { text-align:center; }
}
@media (max-width: 540px) {
  .brand small { display:block; }
  .menu-button,
  .menu-button:hover,
  .menu-button:active,
  .menu-button:focus,
  .menu-button:focus-visible { color:#5f5f5f; }
  .catalog-hero h1 { font-size:36px; }
  .hero { min-height:auto; padding-block:18px 54px; gap:0; }
  .hero-copy { display:contents; }
  .hero-copy .eyebrow { grid-column:1; order:1; margin-bottom:8px; }
  .display { grid-column:1; order:2; font-size:40px; margin:4px 0 14px; }
  .hero-card { grid-column:1; order:3; min-height:0; margin-bottom:14px; }
  .hero-photo { width:min(235px,68vw); aspect-ratio:.76; padding:10px 10px 45px; transform:rotate(.75deg); }
  .hero-photo img { object-position:50% 55%; }
  .hero-photo figcaption { left:17px; right:17px; bottom:15px; }
  .hero-photo figcaption span { display:none; }
  .hero-photo figcaption b { margin-left:auto; font-size:11px; }
  .hero-card .stamp { width:62px; height:62px; left:-20px; bottom:10px; font-size:12px; }
  .sun { width:180px; height:180px; right:15%; top:8%; }
  .hero-copy-full { display:none; }
  .hero-copy-mobile { display:block; grid-column:1; order:4; margin:0 0 14px; font-size:13px !important; line-height:1.65 !important; }
  .actions { grid-column:1; order:5; display:grid; grid-template-columns:1fr 1.2fr; gap:8px; margin:0; }
  .actions .button { min-height:44px; padding:0 10px; font-size:13px; white-space:nowrap; }
  .proof { grid-column:1; order:6; gap:22px; margin-top:42px; }
  .section { padding:65px 0; }
  .section-heading { display:block; }
  .steps, .lesson-grid { grid-template-columns:1fr; }
  .lesson-step-nav { grid-template-columns:1fr; }
  .lesson-step-nav-desktop { display:none; }
  .lesson-step-nav-mobile { display:grid; margin:0 0 14px; }
  .lesson-top h1 { max-width:100%; overflow-wrap:anywhere; font-size:clamp(28px,8vw,40px); line-height:1.35; }
  .lesson-top .jp-title { line-height:1.65; }
  .step { min-height:auto; }
  .step h3 { margin-top:35px; }
  .mission-content { font-size:14px; }
  .mission-options { grid-template-columns:1fr; }
  .mission-formula, .mission-rule, .mission-challenge { padding:13px 14px; }
  .final-message strong { font-size:21px; }
  .catalog-toolbar, .lesson-top, .next-bar { align-items:flex-start; flex-direction:column; }
  .lesson-grid { gap:12px; }
  .lesson-card { min-height:180px; }
  .lesson-body { padding:25px; }
  .next-bar .button { width:100%; }
}

/* Step 4 local audio practice only. */
.homework .voice-practice { margin:18px 0; min-width:0; }
.homework .voice-local-help, .homework .voice-fallback { font-size:12px; line-height:1.7; color:var(--muted); }
.homework .voice-fallback { padding:12px; background:var(--paper); border:1px solid var(--line); }
.homework .voice-actions { display:flex; flex-wrap:wrap; gap:10px; margin:12px 0; }
.homework .voice-actions .button { padding:10px 14px; font-size:13px; }
.homework button:disabled { opacity:.5; cursor:not-allowed; }
.homework .voice-status { color:var(--muted); font-size:13px; line-height:1.7; overflow-wrap:anywhere; }
.homework .voice-timer { color:var(--red); font-weight:600; font-variant-numeric:tabular-nums; }
.homework .voice-preview { border:1px solid var(--line); padding:12px; background:var(--paper); }
.homework .voice-preview > span { display:block; overflow-wrap:anywhere; font-size:12px; margin-bottom:10px; }
.homework .voice-preview audio { display:block; width:100%; min-width:0; }
.homework .voice-practice [hidden] { display:none !important; }
.homework .practice-notes-label { display:block; font-size:13px; margin-top:16px; }
.homework .practice-notes-label textarea { display:block; margin-top:8px; }