.product-section { padding-top: 106px; padding-bottom: 86px; }
.section-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 50px; margin-bottom: 74px; }
.section-intro { font-size: 13px; color: var(--muted); line-height: 2.05; margin-bottom: 9px; }
.feature-row { display: grid; grid-template-columns: 1fr 1fr; align-items: center; gap: 104px; padding: 18px 0 72px; }
.feature-row + .feature-row { padding-top: 44px; }
.feature-copy { min-width: 0; max-width: 385px; }
.feature-number { font-family: Georgia, var(--sans); font-size: 11px; color: #607253; letter-spacing: .13em; }
.feature-copy > p { font-size: 14px; line-height: 2.1; color: var(--muted); margin: 0; }
.feature-copy .feature-detail { font-size: 12px; margin-top: 14px; color: #4e6654; }
.topic-tags { display: flex; gap: 17px; flex-wrap: wrap; margin-top: 27px; font-size: 10px; color: #51694d; }
.topic-tags span { padding-left: 11px; border-left: 1px solid #adbaa3; }
.feature-visual { min-width: 0; position: relative; border-radius: 10px; }
.story-visual { background: #e9ede3; padding: 30px 32px 22px; }
.story-window { background: var(--white); box-shadow: 0 10px 28px rgb(49 66 33 / 5%); border-radius: 6px; overflow: hidden; }
.window-label { display: flex; justify-content: space-between; gap: 15px; padding: 17px 21px 0; font-size: 10px; color: var(--muted); }
.window-label span:first-child { color: #50684d; }
.story-window img { width: 100%; height: auto; margin-top: 8px; }
.story-text { padding: 3px 25px 20px; }
.story-text p { font-family: Georgia, serif; font-size: 25px; color: #365641; line-height: 1.45; margin: 0 0 10px; }
.story-text > span { font-size: 11px; color: var(--muted); }
.expression-pills { border-top: 1px solid #edf0e5; padding: 15px 25px 20px; display: flex; gap: 13px; flex-wrap: wrap; }
.expression-pills > span { font-family: Georgia, var(--sans); background: #edf1e7; color: #395a3d; padding: 7px 9px; font-size: 13px; border-radius: 3px; }
.expression-pills small { font-family: var(--sans); margin-left: 5px; font-size: 9px; }
.visual-note { display: block; text-align: center; font-size: 9px; color: #53664a; padding-top: 18px; letter-spacing: .04em; }
.feature-conversation .feature-copy { padding-left: 30px; }
.conversation-visual { background: #eee9db; padding: 27px 31px 22px; }
.conversation-top { display: flex; justify-content: space-between; font-size: 10px; color: #59664f; margin-bottom: 27px; gap: 16px; }
.conversation-top > span:first-child { display: flex; align-items: center; gap: 8px; }
.scenario-picker { display: flex; gap: 9px; flex-wrap: wrap; margin-bottom: 32px; }
.scenario-choice { color: #64715f; border: 1px solid #cbd3c0; border-radius: 4px; padding: 10px 13px; background: transparent; min-height: 44px; font-size: 11px; }
.scenario-choice:hover { background: #f6f4ed; }
.scenario-choice.is-active { background: #fffef9; color: #31563c; border-color: #aebda6; }
.dialogue { display: flex; flex-direction: column; gap: 25px; min-height: 194px; }
.dialogue-line { display: flex; align-items: flex-end; gap: 10px; }
.speaker-mark { width: 29px; height: 29px; border-radius: 50%; background: #dfddcd; display: flex; align-items: center; justify-content: center; font-size: 9px; color: #66745c; flex: 0 0 auto; }
.dialogue-line > div { border-radius: 9px 9px 9px 0; padding: 16px 17px; background: #fffef9; max-width: calc(100% - 40px); }
.dialogue-line p { font-family: Georgia, serif; font-size: 17px; line-height: 1.5; margin: 0 0 8px; }
.dialogue-line div > span { font-size: 10px; opacity: .8; }
.dialogue-line.learner { align-self: flex-end; }
.dialogue-line.learner > div { background: #3e6750; color: #fffef9; border-radius: 9px 9px 0 9px; }
.learner .speaker-mark { background: #bdcbb2; color: #35543a; }
.conversation-bottom { border-top: 1px solid #dbddce; margin-top: 25px; padding-top: 15px; display: flex; align-items: center; justify-content: space-between; gap: 15px; font-size: 10px; color: #536049; }
.conversation-leaf { font-size: 26px; color: #83956e; }
.collection-visual { background: #e8ece2; min-height: 390px; padding: 28px 25px 18px; overflow: hidden; }
.collection-label { display: block; text-align: center; font-family: var(--serif); font-size: 15px; margin-bottom: 40px; }
.card-spread { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0; padding-inline: 5px; padding-top: 12px; align-items: start; }
.collect-card { background: #fffdf6; border: 1px solid #d2dbc4; border-radius: 8px; padding: 13px 13px 19px; aspect-ratio: 2 / 3; min-width: 0; box-shadow: 0 10px 20px rgb(51 67 29 / 5%); }
.collect-card .card-type { font-size: 10px; color: #596a49; }
.collect-card svg { margin-block: 9px 16px; width: 100%; height: 92px; }
.collect-card b { font-family: Georgia, var(--serif); font-size: 17px; font-weight: 400; display: block; line-height: 1.5; white-space: nowrap; }
.collect-card small { font-size: 9px; color: #536049; display: block; margin-top: 5px; white-space: nowrap; }
.vocabulary-card { transform: rotate(-12deg) translateY(6px); }
.grammar-card { background: #f5e8b9; transform: translateY(-17px); z-index: 2; border-color: #ddcf9f; }
.scene-card { transform: rotate(11deg) translateY(5px); }
.quote-art { height: 117px; font-family: Georgia, serif; font-size: 132px; line-height: 1.35; color: #9caa70; text-align: center; }
.collection-visual .visual-note { margin-top: 25px; }
.companion-note { display: flex; align-items: center; gap: 13px; border-top: 1px solid var(--line); padding-top: 21px; margin-top: 27px; }
.companion-label { border-radius: 10px; width: 46px; height: 46px; flex: 0 0 auto; display: grid; align-content: center; text-align: center; background: #e8ede1; font-size: 11px; line-height: 1.6; color: #4e6654; letter-spacing: .08em; }
.companion-note p { font-size: 11px; line-height: 1.9; color: var(--muted); margin: 0; }
.companion-note strong { font-weight: 400; color: #3e5a43; }
.approach-section { background: #eaf0e5; border-block: 1px solid #dce4d3; padding: 77px 0 74px; }
.approach-heading { text-align: center; }
.approach-heading h2 { font-size: 34px; }
.approach-heading > p:last-child { font-size: 13px; line-height: 1.9; color: var(--muted); margin-top: 17px; }
.principles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 49px; margin-top: 54px; }
.principles article { border-top: 1px solid #bac9b0; padding-top: 27px; }
.principle-value { font-family: Georgia, serif; font-size: 40px; font-weight: 400; line-height: 1.4; letter-spacing: -.04em; color: #426a49; }
.principle-value small { font-family: var(--sans); font-size: 11px; letter-spacing: .02em; margin-left: 10px; }
.principle-value.principle-word { font-family: var(--serif); font-size: 33px; line-height: 1.7; }
.principles h3 { font-family: var(--sans); font-size: 15px; margin: 18px 0 13px; font-weight: 500; }
.principles p { font-size: 12px; color: #5e705d; line-height: 2; margin: 0; }
.company-section { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; padding-top: 84px; padding-bottom: 88px; }
.company-section h2 { font-family: var(--sans); font-size: 22px; letter-spacing: .01em; font-weight: 500; }
.company-copy p { font-size: 12px; line-height: 2.1; color: var(--muted); }
.company-copy p:first-child { margin-top: 0; }
.company-copy p:last-child { margin-bottom: 0; }