:root{--bg-primary: #ededed;--bg-secondary: #f5f5f5;--bg-card: #ffffff;--color-ink: #0a0a0a;--color-ink-soft: #1a1a1a;--color-ink-muted: #3d3d3d;--color-highlight: #ffffff;--border-subtle: rgba(0, 0, 0, .08);--border-strong: rgba(0, 0, 0, .15);--font-display: "Inter", "Noto Sans SC", "PingFang SC", system-ui, sans-serif;--font-body: "Inter", "Noto Sans SC", "PingFang SC", sans-serif;--radius-sm: 8px;--radius-md: 16px;--radius-lg: 24px;--radius-full: 9999px;--shadow-card: 0 4px 24px rgba(0, 0, 0, .06);--shadow-float: 0 8px 32px rgba(0, 0, 0, .12);--glass-bg: rgba(255, 255, 255, .72);--glass-blur: 16px;--header-height: 64px;--section-padding: clamp(64px, 10vw, 120px)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:var(--font-body);background:var(--bg-primary);color:var(--color-ink-muted);line-height:1.7;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button{font-family:inherit;cursor:pointer;border:none;background:none}img{max-width:100%;display:block}.container{width:min(1120px,calc(100% - 48px));margin:0 auto}.section-title{font-family:var(--font-display);font-size:clamp(1.75rem,4vw,2.5rem);font-weight:700;color:var(--color-ink);letter-spacing:-.02em;margin-bottom:12px}.section-subtitle{font-size:1.05rem;color:var(--color-ink-muted);max-width:520px}.section-header{margin-bottom:48px}.section-header--center{text-align:center}.section-header--center .section-subtitle{margin:0 auto}.header{position:fixed;top:0;left:0;right:0;z-index:100;height:var(--header-height);display:flex;align-items:center;transition:background .3s,backdrop-filter .3s,border-color .3s}.header--scrolled{background:var(--glass-bg);backdrop-filter:blur(var(--glass-blur));-webkit-backdrop-filter:blur(var(--glass-blur));border-bottom:1px solid var(--border-subtle)}.header__inner{width:min(1120px,calc(100% - 48px));margin:0 auto;display:flex;align-items:center;justify-content:space-between}.header__logo{font-family:var(--font-display);font-size:1.25rem;font-weight:700;color:var(--color-ink);letter-spacing:-.02em}.header__nav{display:flex;gap:32px;list-style:none}.header__nav a{font-size:.9rem;font-weight:500;color:var(--color-ink-muted);transition:color .2s}.header__nav a:hover{color:var(--color-ink)}.header__burger{display:none;flex-direction:column;gap:5px;padding:4px}.header__burger span{display:block;width:22px;height:2px;background:var(--color-ink);transition:transform .3s,opacity .3s}.header__burger--open span:nth-child(1){transform:translateY(7px) rotate(45deg)}.header__burger--open span:nth-child(2){opacity:0}.header__burger--open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}.header__mobile-nav{display:none;position:fixed;top:var(--header-height);left:0;right:0;background:var(--glass-bg);-webkit-backdrop-filter:blur(var(--glass-blur));backdrop-filter:blur(var(--glass-blur));border-bottom:1px solid var(--border-subtle);padding:24px;flex-direction:column;gap:16px;z-index:99}.header__mobile-nav--open{display:flex}.header__mobile-nav a{font-size:1rem;font-weight:500;color:var(--color-ink);padding:8px 0}@media (max-width: 768px){.header__nav{display:none}.header__burger{display:flex}}.btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 28px;background:var(--color-ink);color:var(--color-highlight);font-size:.95rem;font-weight:600;border-radius:var(--radius-md);transition:transform .2s,box-shadow .2s,background .2s;pointer-events:auto}.btn-primary:hover{background:var(--color-ink-soft);transform:translateY(-1px);box-shadow:var(--shadow-float)}.btn-secondary{display:inline-flex;align-items:center;gap:8px;padding:14px 28px;background:transparent;color:var(--color-ink);font-size:.95rem;font-weight:600;border:1px solid var(--border-strong);border-radius:var(--radius-md);transition:background .2s;pointer-events:auto}.btn-secondary:hover{background:#0000000a}.hero{position:relative;height:100vh;min-height:600px;overflow:hidden;background:var(--bg-primary)}.hero spline-viewer{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%}.hero__overlay{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;flex-direction:column;justify-content:flex-end;padding:0 0 clamp(48px,8vh,96px);background:linear-gradient(to top,rgba(237,237,237,.95) 0%,rgba(237,237,237,.4) 40%,transparent 70%);pointer-events:none}.hero__content{width:min(1120px,calc(100% - 48px));margin:0 auto}.hero__kicker{font-size:.8rem;font-weight:600;letter-spacing:.2em;text-transform:uppercase;color:var(--color-ink-muted);margin-bottom:12px}.hero__title{font-family:var(--font-display);font-size:clamp(2.5rem,6vw,4rem);font-weight:700;color:var(--color-ink);letter-spacing:-.03em;line-height:1.1;margin-bottom:16px}.hero__subtitle{font-size:clamp(1rem,2vw,1.2rem);color:var(--color-ink-muted);margin-bottom:32px;max-width:480px}.hero__actions{display:flex;flex-wrap:wrap;gap:12px}.hero__arrow{display:inline-flex;align-items:center;gap:6px;margin-top:24px;font-size:.85rem;color:var(--color-ink-muted);animation:bounce-hint 2s ease-in-out infinite}@keyframes bounce-hint{0%,to{transform:translate(0)}50%{transform:translate(6px)}}.about{padding:var(--section-padding) 0;background:var(--bg-secondary)}.about__grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}.about__text p{margin-bottom:16px;font-size:1.05rem}.about__stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.stat-card{background:var(--bg-card);border-radius:var(--radius-lg);padding:28px 20px;text-align:center;box-shadow:var(--shadow-card);border:1px solid var(--border-subtle)}.stat-card__value{font-family:var(--font-display);font-size:2rem;font-weight:700;color:var(--color-ink);margin-bottom:4px}.stat-card__label{font-size:.85rem;color:var(--color-ink-muted)}@media (max-width: 768px){.about__grid{grid-template-columns:1fr;gap:40px}.about__stats{grid-template-columns:repeat(3,1fr)}}.works{padding:var(--section-padding) 0;background:var(--bg-card)}.works__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}.work-card{background:var(--bg-secondary);border-radius:var(--radius-lg);padding:32px 28px;border:1px solid var(--border-subtle);transition:transform .25s,box-shadow .25s,border-color .25s;cursor:default}.work-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card);border-color:var(--color-ink)}.work-card__tag{display:inline-block;font-size:.75rem;font-weight:600;padding:4px 12px;background:var(--color-ink);color:var(--color-highlight);border-radius:var(--radius-full);margin-bottom:16px}.work-card__title{font-family:var(--font-display);font-size:1.15rem;font-weight:600;color:var(--color-ink);margin-bottom:8px}.work-card__desc{font-size:.9rem;line-height:1.6}@media (max-width: 900px){.works__grid{grid-template-columns:repeat(2,1fr)}}@media (max-width: 560px){.works__grid{grid-template-columns:1fr}}.contact{padding:var(--section-padding) 0;background:var(--bg-secondary)}.contact__grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}.contact__info{display:flex;flex-direction:column;gap:24px}.contact__item h4{font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.1em;color:var(--color-ink-muted);margin-bottom:6px}.contact__item a,.contact__item p{font-size:1.1rem;color:var(--color-ink);font-weight:500}.contact__item a:hover{text-decoration:underline}.contact__qr{width:120px;height:120px;background:var(--bg-card);border-radius:var(--radius-md);border:1px solid var(--border-subtle);display:flex;align-items:center;justify-content:center;font-size:.75rem;color:var(--color-ink-muted);text-align:center;padding:12px}.contact__cta-card{background:var(--color-ink);color:var(--color-highlight);border-radius:var(--radius-lg);padding:40px 36px;box-shadow:var(--shadow-float)}.contact__cta-card h3{font-family:var(--font-display);font-size:1.5rem;font-weight:700;margin-bottom:12px}.contact__cta-card p{color:#ffffffb3;margin-bottom:24px;line-height:1.6}.contact__cta-arrow{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:.95rem;animation:bounce-hint 2s ease-in-out infinite}@media (max-width: 768px){.contact__grid{grid-template-columns:1fr}}.footer{background:var(--color-ink);color:#fff9;padding:32px 0;text-align:center;font-size:.85rem}.chat-fab{position:fixed;bottom:24px;right:24px;z-index:200;width:56px;height:56px;border-radius:var(--radius-full);background:var(--color-ink);color:var(--color-highlight);display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-float);transition:transform .2s,box-shadow .2s}.chat-fab:hover{transform:scale(1.05)}.chat-fab--hidden{display:none}.chat-fab__pulse{position:absolute;top:-4px;right:-4px;bottom:-4px;left:-4px;border-radius:var(--radius-full);border:2px solid var(--color-ink);animation:fab-pulse 2s ease-out infinite;pointer-events:none}@keyframes fab-pulse{0%{transform:scale(1);opacity:.6}to{transform:scale(1.3);opacity:0}}.chat-panel{position:fixed;bottom:96px;right:24px;z-index:200;width:min(380px,calc(100vw - 48px));height:min(520px,calc(100vh - 140px));background:var(--bg-card);border-radius:var(--radius-lg);border:1px solid var(--border-subtle);box-shadow:var(--shadow-float);display:flex;flex-direction:column;overflow:hidden;animation:panel-in .25s ease-out}@keyframes panel-in{0%{opacity:0;transform:translateY(12px) scale(.97)}to{opacity:1;transform:translateY(0) scale(1)}}.chat-panel__header{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;background:var(--color-ink);color:var(--color-highlight)}.chat-panel__title{font-weight:600;font-size:.95rem}.chat-panel__close{width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-sm);color:#ffffffb3;transition:background .2s}.chat-panel__close:hover{background:#ffffff1a;color:#fff}.chat-panel__messages{flex:1;overflow-y:auto;padding:20px;display:flex;flex-direction:column;gap:12px}.chat-bubble{max-width:85%;padding:12px 16px;border-radius:var(--radius-md);font-size:.9rem;line-height:1.55;word-break:break-word}.chat-bubble--assistant{align-self:flex-start;background:var(--bg-secondary);color:var(--color-ink);border-bottom-left-radius:4px}.chat-bubble--user{align-self:flex-end;background:var(--color-ink);color:var(--color-highlight);border-bottom-right-radius:4px}.chat-bubble--typing:after{content:"▋";animation:blink .8s step-end infinite;margin-left:2px}@keyframes blink{50%{opacity:0}}.chat-panel__input-area{display:flex;gap:8px;padding:16px;border-top:1px solid var(--border-subtle);background:var(--bg-secondary)}.chat-panel__input{flex:1;padding:12px 16px;border:1px solid var(--border-subtle);border-radius:var(--radius-md);font-size:.9rem;font-family:inherit;background:var(--bg-card);color:var(--color-ink);outline:none;transition:border-color .2s}.chat-panel__input:focus{border-color:var(--color-ink)}.chat-panel__input:disabled{opacity:.6}.chat-panel__send{width:44px;height:44px;border-radius:var(--radius-md);background:var(--color-ink);color:var(--color-highlight);display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:opacity .2s}.chat-panel__send:disabled{opacity:.4;cursor:not-allowed}.chat-panel__send:not(:disabled):hover{background:var(--color-ink-soft)}@media (max-width: 480px){.chat-panel{bottom:0;right:0;left:0;width:100%;height:min(520px,80vh);border-radius:var(--radius-lg) var(--radius-lg) 0 0}.chat-fab{bottom:16px;right:16px}}