.video-wrapper.svelte-18llts4{display:flex;flex-wrap:wrap;gap:4rem;justify-content:center}.wrapper.svelte-18llts4{max-width:75rem;margin:0 auto}.wrapper-big.svelte-18llts4{max-width:100rem;margin:0 auto}.container.svelte-18llts4{width:100%;margin:0 auto;padding:2rem;animation:svelte-18llts4-transitionIn .8s ease-out}.modern-header.svelte-18llts4{position:relative;padding:4rem 2rem 3rem;margin-bottom:3rem;overflow:hidden;border-radius:0 0 2rem 2rem;background:linear-gradient(180deg,#f093fb1a,#f5576c1a);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid var(--border-color)}.header-background.svelte-18llts4{position:absolute;top:0;right:0;bottom:0;left:0;z-index:0}.home-icon-bg.svelte-18llts4{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:15rem;opacity:.1;animation:svelte-18llts4-pulse-slow 4s ease-in-out infinite}@keyframes svelte-18llts4-pulse-slow{0%,to{transform:translate(-50%,-50%) scale(1)}50%{transform:translate(-50%,-50%) scale(1.1)}}.gradient-orb.svelte-18llts4{position:absolute;border-radius:50%;filter:blur(40px);opacity:.3;animation:svelte-18llts4-float 6s ease-in-out infinite}.orb-1.svelte-18llts4{top:20%;left:10%;width:150px;height:150px;background:linear-gradient(135deg,#f093fb,#f5576c);animation-delay:0s}.orb-2.svelte-18llts4{top:60%;right:15%;width:200px;height:200px;background:linear-gradient(135deg,#fa709a,#fee140);animation-delay:2s}.orb-3.svelte-18llts4{bottom:10%;left:60%;width:120px;height:120px;background:linear-gradient(135deg,#fbbf24,#f59e0b);animation-delay:4s}@keyframes svelte-18llts4-float{0%,to{transform:translateY(0) rotate(0)}50%{transform:translateY(-20px) rotate(180deg)}}.header-content.svelte-18llts4{position:relative;z-index:1;text-align:center;max-width:70rem;margin:0 auto}.header-title.svelte-18llts4{font-size:3.5rem;color:var(--text-primary);margin:0 0 1rem;font-weight:900;background:linear-gradient(135deg,#f093fb,#f5576c);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.header-subtitle.svelte-18llts4{font-size:1.8rem;color:var(--text-secondary);margin-bottom:3rem;line-height:1.6}.controls-container.svelte-18llts4{display:flex;gap:2rem;justify-content:center;flex-wrap:wrap}.modern-toggle-btn.svelte-18llts4{position:relative;display:flex;align-items:center;gap:1rem;padding:1.2rem 2.5rem;background:linear-gradient(135deg,#f093fb,#f5576c);color:#fff;border:none;border-radius:50px;font-size:1.7rem;font-weight:700;cursor:pointer;transition:all .3s ease;box-shadow:var(--card-shadow);overflow:hidden}.modern-toggle-btn.svelte-18llts4:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);transition:left .5s}.modern-toggle-btn.svelte-18llts4:hover:before{left:100%}.modern-toggle-btn.svelte-18llts4:hover{transform:translateY(-3px);box-shadow:var(--card-hover-shadow)}.toggle-icon.svelte-18llts4{font-size:2rem;font-weight:700}.toggle-indicator.svelte-18llts4{position:absolute;bottom:-8px;left:50%;transform:translate(-50%);width:30px;height:3px;background:var(--orange);border-radius:3px;opacity:0;transition:all .3s ease}.toggle-indicator.active.svelte-18llts4{opacity:1;box-shadow:0 0 10px var(--orange)}.section-badge.svelte-18llts4{display:inline-flex;align-items:center;gap:.8rem;background:linear-gradient(135deg,#f093fb,#f5576c);padding:.8rem 2rem;border-radius:30px;margin-bottom:2rem;box-shadow:var(--card-shadow)}.section-badge.home.svelte-18llts4{background:linear-gradient(135deg,#fa709a,#fee140)}.badge-icon.svelte-18llts4{font-size:2rem}.badge-text.svelte-18llts4{font-size:1.8rem;font-weight:700;color:#fff}.content-card.svelte-18llts4{background:var(--white-black);border-radius:24px;padding:3rem;margin:4rem auto;box-shadow:var(--card-shadow);border:1px solid var(--border-color);transition:all .3s ease;position:relative}.content-card.svelte-18llts4:before{content:"";position:absolute;top:0;left:0;right:0;height:4px;border-radius:24px 24px 0 0}.leaving-section.svelte-18llts4:before{background:linear-gradient(135deg,#f093fb,#f5576c)}.response-section.svelte-18llts4:before{background:linear-gradient(135deg,#4facfe,#00f2fe)}.hotel-section.svelte-18llts4:before{background:linear-gradient(135deg,#667eea,#764ba2)}.coming-home-section.svelte-18llts4:before{background:linear-gradient(135deg,#fa709a,#fee140)}.welcome-section.svelte-18llts4:before{background:linear-gradient(135deg,#fbbf24,#f59e0b)}.content-card.svelte-18llts4:hover{transform:translateY(-5px);box-shadow:var(--card-hover-shadow)}.leaving-section.svelte-18llts4{background:linear-gradient(135deg,#f093fb1a,#f5576c1a)}.response-section.svelte-18llts4{background:linear-gradient(135deg,#4facfe1a,#00f2fe1a)}.hotel-section.svelte-18llts4{background:linear-gradient(135deg,#667eea1a,#764ba21a)}.coming-home-section.svelte-18llts4{background:linear-gradient(135deg,#fa709a1a,#fee1401a)}.welcome-section.svelte-18llts4{background:linear-gradient(135deg,#fbbf241a,#f59e0b1a)}.audio-control.svelte-18llts4{display:flex;justify-content:center;margin:2rem 0}.pronunciation-showcase.svelte-18llts4{text-align:center;margin:3rem 0}.intro-text.svelte-18llts4{font-size:1.8rem;color:var(--text-secondary);margin-bottom:2rem;line-height:1.6}.phrase-image.svelte-18llts4{max-width:26rem;height:auto;display:block;margin:0 auto;border-radius:16px;min-height:200px;-o-object-fit:cover;object-fit:cover}.phrase-image.svelte-18llts4:not([src]),.phrase-image[src=""].svelte-18llts4{display:none}.hotel-image.svelte-18llts4{max-width:32rem;margin:2rem auto;display:block;border-radius:16px}.scenario-image.svelte-18llts4{max-width:22rem;margin:2rem auto;display:block;border-radius:16px;box-shadow:var(--card-shadow)}.word-display.svelte-18llts4{position:relative;text-align:center;margin:3rem 0}.japanese-word.svelte-18llts4{font-size:4rem;font-weight:900;background:linear-gradient(135deg,#f093fb,#f5576c);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;padding:1rem 3rem;position:relative;z-index:1}.japanese-word.home-color.svelte-18llts4{background:linear-gradient(135deg,#fa709a,#fee140);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.japanese-word-medium.svelte-18llts4{text-align:center;font-size:3.2rem;font-weight:900;background:linear-gradient(135deg,#4facfe,#00f2fe);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;padding:1rem 2.5rem;position:relative;z-index:1}.japanese-word-medium.casual-color.svelte-18llts4{background:linear-gradient(135deg,#fbbf24,#f59e0b);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.word-shadow.svelte-18llts4,.word-shadow-medium.svelte-18llts4{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:100%;height:100%;filter:blur(30px);opacity:.2;z-index:0}.word-shadow.svelte-18llts4{background:linear-gradient(135deg,#f093fb,#f5576c)}.word-shadow.home-shadow.svelte-18llts4{background:linear-gradient(135deg,#fa709a,#fee140)}.word-shadow-medium.svelte-18llts4{background:linear-gradient(135deg,#4facfe,#00f2fe)}.word-shadow-medium.casual-shadow.svelte-18llts4{background:linear-gradient(135deg,#fbbf24,#f59e0b)}.meaning-box.svelte-18llts4{background:var(--background-secondary);border-radius:15px;padding:2rem;margin:2rem auto;max-width:50rem;text-align:center;box-shadow:var(--card-shadow)}.meaning-text.svelte-18llts4{font-size:1.8rem;color:var(--text-secondary);margin:0}.emphasis.svelte-18llts4{font-weight:700;color:#f093fb}.section-title.svelte-18llts4{font-size:2.4rem;color:var(--font-color);text-align:center;margin-bottom:2rem;font-weight:800}.section-intro.svelte-18llts4{font-size:1.8rem;line-height:1.7;color:var(--text-secondary);text-align:center;margin-bottom:3rem}.section-text.svelte-18llts4{font-size:1.8rem;text-align:center;margin:2rem 0;color:var(--text-secondary);line-height:1.7}.inline-japanese.svelte-18llts4{padding:.4rem .8rem;background:var(--background-secondary);border-radius:8px;font-weight:700;color:var(--font-color);transition:all .3s ease;border:1px solid var(--border-color)}.inline-japanese.svelte-18llts4:hover{background:linear-gradient(135deg,#f093fb,#f5576c);color:#fff;transform:scale(1.05)}.inline-japanese.white.svelte-18llts4{color:#fff;background:#ffffff1a;border-color:#ffffff4d}.inline-japanese.large.svelte-18llts4{font-size:2rem;padding:.6rem 1.2rem}.inline-japanese.red.svelte-18llts4{background:#fc8181;color:#fff}.pronunciation-tip.svelte-18llts4{background:linear-gradient(135deg,#fef3c7,#fde68a);border-radius:20px;padding:2.5rem;margin-top:3rem;border:2px dashed #f59e0b;text-align:center;box-shadow:var(--card-shadow)}.pronunciation-tip.svelte-18llts4 h4:where(.svelte-18llts4){font-size:2rem;color:#92400e;margin:0 0 1.5rem;font-weight:800}.pronunciation-tip.svelte-18llts4 p:where(.svelte-18llts4){font-size:1.8rem;color:#78350f;line-height:1.6;margin:0}.explanation-card.svelte-18llts4{background:var(--background-secondary);border-radius:15px;padding:2.5rem;margin:3rem 0;box-shadow:var(--card-shadow)}.explanation-card.svelte-18llts4 p:where(.svelte-18llts4){font-size:1.8rem;color:var(--text-secondary);line-height:1.7;margin-bottom:1.5rem}.explanation-card.svelte-18llts4 p:where(.svelte-18llts4):last-child{margin-bottom:0}.scenario-box.svelte-18llts4{background:var(--background-secondary);border-radius:20px;padding:3rem;margin:3rem 0;text-align:center;box-shadow:var(--card-shadow)}.scenario-box.svelte-18llts4 h4:where(.svelte-18llts4){font-size:2rem;margin:0 0 1.5rem;font-weight:800}.scenario-box.svelte-18llts4 p:where(.svelte-18llts4){font-size:1.8rem;line-height:1.7;margin-bottom:1.5rem}.scenario-note.svelte-18llts4{font-style:italic;margin-top:1rem!important}.word-combination.svelte-18llts4{display:flex;align-items:center;justify-content:center;gap:2rem;margin:3rem 0;font-size:2.2rem;font-weight:900;flex-wrap:wrap}.word-part.svelte-18llts4{padding:1.2rem 2rem;border-radius:15px;transition:all .3s ease;color:#fff;box-shadow:var(--card-shadow)}.word-part.base.svelte-18llts4{background:linear-gradient(135deg,#4facfe,#00f2fe);transform:rotate(-2deg)}.word-part.polite.svelte-18llts4{background:linear-gradient(135deg,#f093fb,#f5576c);transform:rotate(2deg)}.word-part.welcome.svelte-18llts4{background:linear-gradient(135deg,#fa709a,#fee140);transform:rotate(-2deg)}.plus-sign.svelte-18llts4{font-size:2.5rem;color:var(--text-secondary);font-weight:900}.word-combination.svelte-18llts4:hover .word-part:where(.svelte-18llts4){transform:rotate(0) scale(1.05)}.tip-card.svelte-18llts4{display:flex;align-items:flex-start;gap:2rem;background:var(--background-secondary);padding:2.5rem;border-radius:20px;margin:3rem 0;border-left:4px solid var(--yellow);box-shadow:var(--card-shadow);transition:all .3s ease}.tip-card.svelte-18llts4:hover{transform:translateY(-3px);box-shadow:var(--card-hover-shadow)}.tip-icon.svelte-18llts4{width:50px;height:50px;background:var(--yellow);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:2.4rem;flex-shrink:0;color:var(--background)}.tip-content.svelte-18llts4 h4:where(.svelte-18llts4){margin:0 0 1rem;font-size:1.8rem;font-weight:700;color:var(--font-color)}.tip-content.svelte-18llts4 p:where(.svelte-18llts4){margin:0 0 1rem;font-size:1.8rem;color:var(--text-secondary);line-height:1.6}.tip-note.svelte-18llts4{font-size:1.8rem!important;font-style:italic;opacity:.9;margin-bottom:0!important}.etymology-box.svelte-18llts4{background:var(--background-secondary);border-radius:20px;padding:3rem;margin:3rem 0;text-align:center;box-shadow:var(--card-shadow)}.etymology-box.svelte-18llts4 h4:where(.svelte-18llts4){font-size:2rem;margin:0 0 1.5rem;font-weight:800}.etymology-box.svelte-18llts4 p:where(.svelte-18llts4){font-size:1.8rem;line-height:1.6;margin-bottom:2rem}.full-phrase.svelte-18llts4{margin:2rem 0}.etymology-meaning.svelte-18llts4{font-style:italic;font-weight:600;margin-top:2rem!important}.translation.svelte-18llts4{font-size:1.8rem;text-align:center;color:var(--text-secondary);margin:2rem 0}.cultural-note.svelte-18llts4{font-size:1.8rem;text-align:center;color:var(--text-secondary);margin:1rem 0 3rem;font-style:italic}.casual-variant.svelte-18llts4{background:var(--background-secondary);border-radius:20px;padding:3rem;margin-top:3rem;box-shadow:var(--card-shadow)}.variant-intro.svelte-18llts4{font-size:1.8rem;text-align:center;color:var(--text-secondary);margin-bottom:2rem}.usage-guide.svelte-18llts4{background:#fbbf241a;border-left:4px solid #fbbf24;padding:2rem;border-radius:10px;margin-top:2rem;box-shadow:var(--box-shadow)}.usage-guide.svelte-18llts4 p:where(.svelte-18llts4){margin:0;font-size:1.8rem;line-height:1.6;color:var(--text-secondary)}.term-badge.svelte-18llts4{display:inline-block;padding:.4rem 1rem;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border-radius:20px;font-weight:700;font-size:.9em;margin:0 .5rem;box-shadow:var(--card-shadow)}.term-badge.keigo.svelte-18llts4{background:linear-gradient(135deg,#6366f1,#8b5cf6)}.exchange-section.svelte-18llts4{margin:6rem auto;position:relative;padding:2rem 0}.section-header.svelte-18llts4{text-align:center;font-size:3rem;color:var(--font-color);margin-bottom:4rem;display:flex;align-items:center;justify-content:center;gap:2rem;font-weight:800}.header-text.svelte-18llts4{background:linear-gradient(135deg,#f093fb,#f5576c);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.header-icon.svelte-18llts4{font-size:2.5rem;animation:svelte-18llts4-rotate-icon 3s linear infinite}@keyframes svelte-18llts4-rotate-icon{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.exchange-grid.svelte-18llts4{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:3rem}.exchange-card.svelte-18llts4{background:var(--white-black);border-radius:24px;padding:3rem;box-shadow:var(--card-shadow);transition:all .3s ease;border:1px solid var(--border-color)}.exchange-card.svelte-18llts4:hover{transform:translateY(-5px);box-shadow:var(--card-hover-shadow)}.exchange-card.leaving.svelte-18llts4{background:linear-gradient(135deg,#f093fb1a,#f5576c1a)}.exchange-card.returning.svelte-18llts4{background:linear-gradient(135deg,#fa709a1a,#fee1401a)}.exchange-card.svelte-18llts4 h3:where(.svelte-18llts4){text-align:center;font-size:2rem;color:var(--font-color);margin:0 0 2rem;font-weight:800}.exchange-flow.svelte-18llts4{display:flex;align-items:center;justify-content:center;gap:2rem;flex-wrap:wrap}.speech-bubble.svelte-18llts4{position:relative;padding:1.5rem 2rem;border-radius:20px;box-shadow:var(--card-shadow);background:var(--white-black);min-width:120px;text-align:center;border:1px solid var(--border-color)}.speech-bubble.svelte-18llts4 p:where(.svelte-18llts4){margin:0;font-size:1.8rem;font-weight:700;color:var(--font-color)}.speaker.svelte-18llts4{position:absolute;bottom:-2rem;left:50%;transform:translate(-50%);font-size:1.2rem;color:var(--text-secondary);font-style:italic;white-space:nowrap}.arrow.svelte-18llts4{font-size:2.5rem;color:var(--text-secondary);font-weight:700}.summary-card.svelte-18llts4{background:linear-gradient(135deg,#f093fb,#f5576c);color:#fff;padding:4rem;border-radius:24px;margin:6rem auto;box-shadow:var(--card-shadow);position:relative;overflow:hidden}.summary-card.svelte-18llts4:before{content:"";position:absolute;top:-50%;right:-50%;width:200%;height:200%;background:radial-gradient(circle,rgba(255,255,255,.1) 0%,transparent 70%);animation:svelte-18llts4-rotate 20s linear infinite}@keyframes svelte-18llts4-rotate{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.summary-title.svelte-18llts4{text-align:center;font-size:2.8rem;margin-bottom:3rem;font-weight:800;position:relative;z-index:1}.summary-content.svelte-18llts4{display:grid;gap:2rem;position:relative;z-index:1}.rule-item.svelte-18llts4{display:flex;align-items:center;gap:2rem;padding:2rem;background:#00000040;border-radius:16px;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.2);transition:all .3s ease}.rule-item.svelte-18llts4:hover{background:#00000059;transform:translateY(-2px)}.rule-icon.svelte-18llts4{font-size:3rem;width:60px;height:60px;display:flex;align-items:center;justify-content:center;background:#fff3;border-radius:50%;flex-shrink:0}.rule-text.svelte-18llts4{flex:1;font-size:1.7rem;line-height:1.6}.center.svelte-18llts4{text-align:center}.done.svelte-18llts4{display:inline-flex;align-items:center;justify-content:center;width:16rem;padding:1.5rem 0;background:linear-gradient(135deg,#f093fb,#f5576c);color:#fff;font-size:1.8rem;font-weight:700;border-radius:50px;box-shadow:var(--card-shadow);cursor:pointer;text-decoration:none;margin:6rem auto 0;transition:all .3s ease;position:relative;overflow:hidden}.done.svelte-18llts4:before{content:"";position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.3),transparent);transition:left .5s}.done.svelte-18llts4:hover:before{left:100%}.done.svelte-18llts4:hover{transform:translateY(-3px);box-shadow:var(--card-hover-shadow)}@media (min-width: 768px){.exchange-grid.svelte-18llts4{grid-template-columns:repeat(2,1fr)}}@media (max-width: 768px){.container.svelte-18llts4{padding:1.5rem}.header-title.svelte-18llts4{font-size:2.8rem}.japanese-word.svelte-18llts4{font-size:3rem;padding:.8rem 2rem}.content-card.svelte-18llts4{padding:2.5rem}.word-combination.svelte-18llts4{flex-direction:column;gap:1rem}.word-part.svelte-18llts4{transform:rotate(0)}.section-header.svelte-18llts4{font-size:2.4rem;flex-direction:column;gap:1rem}.summary-card.svelte-18llts4{padding:2.5rem}.rule-item.svelte-18llts4{flex-direction:column;text-align:center;gap:1rem}.exchange-flow.svelte-18llts4{flex-direction:column;gap:1rem}.arrow.svelte-18llts4{transform:rotate(90deg)}}@keyframes svelte-18llts4-transitionIn{0%{opacity:0;transform:translateY(30px)}to{opacity:1;transform:translateY(0)}}