.duel-button{--button-tone: var(--duel-blue, #2563ff);--button-tone-soft: var(--duel-blue-soft, #e6eeff);--button-on-tone: var(--duel-surface, #ffffff);--button-disabled-fill: var(--duel-surface-soft, #eef3fa);--button-disabled-text: var(--duel-subtle, #8a94a6);--button-fixed-width: 168px;position:relative;display:inline-flex;align-items:center;justify-content:center;gap:8px;max-width:100%;overflow:hidden;color:var(--button-tone);background:transparent;border:1px solid transparent;border-radius:var(--duel-radius-sm, 6px);font-family:var(--duel-font-body, "Avenir Next", "Helvetica Neue", "PingFang SC", "Microsoft YaHei", ui-sans-serif, system-ui, sans-serif);font-weight:700;letter-spacing:0;text-align:center;text-decoration:none;white-space:nowrap;cursor:pointer;-webkit-user-select:none;user-select:none;transition:background .14s ease-out,border-color .14s ease-out,color .14s ease-out,transform .1s ease-out}.duel-button:hover{text-decoration:none}.duel-button:before{display:none;content:none}.duel-button:active:not(:disabled):not([aria-disabled=true]){transform:translateY(1px)}.duel-button:focus-visible{outline:2px solid var(--duel-gold, #b07600);outline-offset:3px}.duel-button:disabled,.duel-button[aria-disabled=true]{color:var(--button-disabled-text);background:var(--button-disabled-fill);border-color:var(--duel-line, #d8dee8);cursor:not-allowed;opacity:.7;transform:none}.duel-button.is-loading:not(:disabled):not([aria-disabled=true]){cursor:progress}.duel-button:disabled:hover,.duel-button[aria-disabled=true]:hover{cursor:not-allowed}.duel-button-label{min-width:0;overflow:hidden;text-overflow:ellipsis}.duel-button-slot{display:inline-grid;place-items:center;width:18px;height:18px;flex:0 0 18px}.duel-button-slot svg{width:18px;height:18px;stroke-width:2.2}.duel-button.duel-button-primary{color:var(--button-on-tone);background:var(--duel-blue, #2563ff);border-color:var(--button-tone)}.duel-button.duel-button-primary:hover:not(:disabled):not([aria-disabled=true]){color:var(--button-on-tone);background:var(--duel-ink, #111827);border-color:var(--duel-ink, #111827)}.duel-button.duel-button-secondary{color:var(--duel-blue, #2563ff);background:var(--duel-surface, #ffffff);border-color:var(--duel-line-strong, #b8c2d2)}.duel-button.duel-button-secondary:hover:not(:disabled):not([aria-disabled=true]){color:var(--duel-blue, #2563ff);background:var(--duel-surface-soft, #eef3fa);border-color:var(--duel-blue, #2563ff)}.duel-button.duel-button-text{min-height:auto;padding-inline:0;color:var(--button-tone);background:transparent;border-color:transparent;border-radius:0}.duel-button-text:after{position:absolute;right:0;bottom:2px;left:0;height:2px;background:currentColor;content:"";transform:scaleX(0);transform-origin:left;transition:transform .14s ease-out}.duel-button-text:hover:not(:disabled):not([aria-disabled=true]):after,.duel-button-text:focus-visible:after{transform:scaleX(1)}.duel-button-tone-primary{--button-tone: var(--duel-blue, #2563ff);--button-tone-soft: var(--duel-blue-soft, #e6eeff)}.duel-button-tone-secondary{--button-tone: var(--duel-red, #f04452);--button-tone-soft: var(--duel-red-soft, #ffe7e8)}.duel-button-tone-neutral{--button-tone: var(--duel-ink, #111827);--button-tone-soft: var(--duel-surface-soft, #eef3fa)}.duel-button-tone-success{--button-tone: var(--duel-green, #009f86);--button-tone-soft: var(--duel-green-soft, #ddf7f1)}.duel-button-tone-danger{--button-tone: var(--duel-danger, #d92d3d);--button-tone-soft: var(--duel-red-soft, #ffe7e8)}.duel-button-tone-warning{--button-tone: var(--duel-gold, #b07600);--button-tone-soft: var(--duel-gold-soft, #fff0c2)}.duel-button-tone-disabled{--button-tone: var(--duel-subtle, #8a94a6);--button-tone-soft: var(--duel-surface-soft, #eef3fa)}.duel-button-size-sm{min-height:40px;padding:0 16px 0 18px;font-size:14px;line-height:22px}.duel-button-size-md{min-height:44px;padding:0 18px 0 20px;font-size:15px;line-height:24px}.duel-button-size-lg{min-height:48px;padding:0 22px 0 24px;font-size:15px;line-height:24px}.duel-button-size-icon{width:40px;min-width:40px;min-height:40px;padding:0;font-size:14px;line-height:22px}.duel-button-width-full{width:100%}.duel-button-width-fixed{width:var(--button-fixed-width)}@media(prefers-reduced-motion:reduce){.duel-button,.duel-button-text:after{transition:none}}.site-footer{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:24px;width:min(var(--duel-container, 1180px),calc(100% - 48px));margin:0 auto;padding:28px 0 34px;color:var(--duel-muted, #5b6472);border-top:1px solid var(--duel-line, #d8dee8);font-size:13px;font-weight:600;line-height:22px}.site-footer-brand,.site-footer-links{display:flex;flex-wrap:wrap;align-items:center;gap:18px}.site-footer-brand strong{color:var(--duel-ink, #111827);font-size:16px;font-weight:700}.site-footer-brand span{font-family:var(--duel-font-code, "SFMono-Regular", Consolas, "Liberation Mono", monospace)}.site-footer-links{justify-content:flex-end}.site-footer-language{display:none}.site-footer-language .site-language-switcher{margin-left:0}.site-footer-links a{color:inherit;text-decoration:none}.site-footer-links a:hover,.site-footer-links a:focus-visible{color:#2563ff;outline:0}@media(max-width:920px){.site-footer{width:min(100% - 32px,720px)}}@media(max-width:640px){.site-footer{align-items:stretch;flex-direction:column;width:calc(100% - 32px);padding:24px 0 30px}.site-footer-brand{order:2;justify-content:flex-start;width:100%}.site-footer-links{order:1;justify-content:flex-start}.site-footer-language{display:inline-flex}}.site-header{position:relative;z-index:20;display:flex;justify-content:space-between;gap:24px;width:min(var(--duel-container, 1180px),calc(100% - 48px));min-height:64px;margin:0 auto;padding:20px 0 0;align-items:center}.duel-animated-background>.site-header{z-index:20}.site-header-brand{display:inline-flex;align-items:center;justify-content:flex-start;gap:8px;color:var(--duel-ink, #111827);text-decoration:none;font-size:18px;font-weight:700;line-height:24px}.site-header-brand-mark{display:inline-flex;align-items:center;justify-content:flex-start;width:32px;height:32px;flex:0 0 32px}.site-header-brand-mark img{display:block}.site-header-links{display:flex;flex-wrap:nowrap;align-items:center;color:var(--duel-muted, #5b6472);font-size:14px;font-weight:600;line-height:22px}.site-header-links a,.site-header-menu-trigger{position:relative;display:inline-flex;white-space:nowrap;align-items:center;justify-content:center;min-height:34px;padding:6px 10px;color:inherit;background:transparent;border:0;border-radius:0;font:inherit;text-decoration:none;cursor:pointer}.site-header-links a:hover,.site-header-links a:focus-visible,.site-header-menu-trigger:hover,.site-header-menu-trigger:focus-visible,.site-header-menu:hover .site-header-menu-trigger,.site-header-menu:focus-within .site-header-menu-trigger{color:var(--duel-surface, #ffffff);background:#2563ff;outline:0}.site-header-menu{position:relative;display:inline-flex;align-items:flex-start;min-width:96px;flex:0 0 auto}.site-header-menu-panel{position:absolute;left:0;top:100%;z-index:30;display:grid;width:max-content;min-width:calc(100% + 1px);padding:8px;background:var(--duel-surface, #ffffff);border:1px solid var(--duel-line, #d8dee8);border-radius:0 0 var(--duel-radius-md, 8px) var(--duel-radius-md, 8px);box-shadow:var(--duel-shadow-soft, 0 8px 20px rgba(17, 24, 39, .06));opacity:0;pointer-events:none;transition:opacity .12s ease-out}.site-header-links>a{min-width:96px;flex:0 0 auto}.site-language-switcher{display:inline-flex;align-items:center;min-height:34px;margin-left:8px;padding:2px;border:1px solid var(--duel-line, #d8dee8);background:#ffffffb3}.site-language-button{display:inline-flex;align-items:center;justify-content:center;min-width:34px;min-height:28px;padding:4px 8px;color:var(--duel-muted, #5b6472);background:transparent;border:0;font:inherit;font-size:12px;line-height:18px;cursor:pointer}.site-language-button:hover,.site-language-button:focus-visible{color:var(--duel-blue, #2563ff);outline:1px solid var(--duel-blue, #2563ff);outline-offset:-1px}.site-language-button.is-active{color:var(--duel-surface, #ffffff);background:var(--duel-ink, #111827)}.site-header-menu:hover .site-header-menu-panel,.site-header-menu:focus-within .site-header-menu-panel{opacity:1;pointer-events:auto}.site-header-menu-panel a{display:flex;align-items:center;min-height:40px;padding:8px 12px;border-radius:0;color:var(--duel-text, #263142);line-height:22px;white-space:nowrap}.site-header-menu-trigger{width:100%}.site-header-menu-panel a:after{display:none}.site-header-menu-panel a:hover,.site-header-menu-panel a:focus-visible{color:#2563ff;background:transparent;outline:0}@media(prefers-reduced-motion:reduce){.site-header-menu-panel{transition:none}}@media(max-width:920px){.site-header{width:min(100% - 32px,720px)}}@media(max-width:640px){.site-header{align-items:center;flex-direction:column;gap:12px;width:calc(100% - 32px);min-height:0;padding-top:18px}.site-header-brand{justify-content:center;width:100%}.site-header-links{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));width:100%;justify-items:stretch}.site-header-links>a,.site-header-menu{width:100%;min-width:0}.site-header-links a,.site-header-menu-trigger{width:100%;padding-right:4px;padding-left:4px}.site-header .site-language-switcher{display:none}.site-header-menu-panel{left:0}}.home-page{--duel-bg: #f7f9fc;--duel-surface: #ffffff;--duel-surface-soft: #eef3fa;--duel-ink: #111827;--duel-text: #263142;--duel-muted: #5b6472;--duel-subtle: #8a94a6;--duel-line: #d8dee8;--duel-line-strong: #b8c2d2;--duel-red: #f04452;--duel-red-soft: #ffe7e8;--duel-blue: #2563ff;--duel-blue-soft: #e6eeff;--duel-green: #009f86;--duel-green-soft: #ddf7f1;--duel-gold: #b07600;--duel-gold-soft: #fff0c2;--duel-brown: #7a4b22;--duel-brown-soft: #f6ede5;--duel-danger: #d92d3d;--duel-font-display: "Avenir Next", "PingFang SC", "Microsoft YaHei", ui-sans-serif, system-ui, sans-serif;--duel-font-body: "Avenir Next", "Helvetica Neue", "PingFang SC", "Microsoft YaHei", ui-sans-serif, system-ui, sans-serif;--duel-font-code: "SFMono-Regular", Consolas, "Liberation Mono", monospace;--duel-container: 1180px;--duel-radius-xs: 4px;--duel-radius-sm: 6px;--duel-radius-md: 8px;min-height:100vh;display:flex;flex-direction:column;color:var(--duel-text);font-family:var(--duel-font-body)}.home-main{width:min(var(--duel-container, 1180px),calc(100% - 48px));margin:0 auto;padding:58px 0 80px;flex:1}.home-hero{display:grid;grid-template-columns:minmax(0,1fr) minmax(360px,520px);align-items:center;gap:54px;padding:18px 0 64px}.home-hero-copy{max-width:620px}.home-kicker,.home-section-heading p{margin:0;color:var(--duel-blue);font:600 13px/20px var(--duel-font-code)}.home-hero h1{max-width:620px;margin:14px 0 0;color:var(--duel-ink);font-family:var(--duel-font-display);font-size:clamp(42px,5vw,72px);font-weight:700;line-height:.98;letter-spacing:0}.home-title-line{display:block;white-space:nowrap}.home-hero-subtitle{max-width:600px;margin:24px 0 0;color:var(--duel-muted);font-size:18px;line-height:30px}.home-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}.home-hero-actions .character-battle-launch-button,.home-hero-actions .duel-button.character-battle-launch-button{position:relative;isolation:isolate;min-height:42px;padding:0 16px;color:var(--duel-surface);font:600 14px/20px var(--duel-font-body);background:var(--duel-brown);border:1px solid var(--duel-brown);border-radius:8px;cursor:pointer;overflow:hidden;transition:background .14s ease-out,border-color .14s ease-out,color .14s ease-out}.home-hero-actions .character-battle-launch-button:hover:not(:disabled),.home-hero-actions .duel-button.character-battle-launch-button:hover:not(:disabled):not([aria-disabled=true]){color:var(--duel-surface);background:color-mix(in srgb,var(--duel-brown) 88%,var(--duel-ink));border-color:var(--duel-brown)}.home-hero-actions .character-battle-launch-button:focus-visible{outline:2px solid var(--duel-gold);outline-offset:3px}.home-hero-actions .home-hero-secondary-button,.home-hero-actions .duel-button.home-hero-secondary-button{color:var(--duel-brown);background:transparent;border-color:transparent}.home-hero-actions .home-hero-secondary-button:hover:not(:disabled),.home-hero-actions .duel-button.home-hero-secondary-button:hover:not(:disabled):not([aria-disabled=true]){color:var(--duel-brown);background:transparent;border-color:transparent}.home-hero-video-column{min-width:0;margin-left:32px}.home-hero-video-frame{position:relative;aspect-ratio:16 / 9;overflow:hidden;background:var(--duel-ink);border:1px solid var(--duel-line-strong);border-radius:var(--duel-radius-md);box-shadow:var(--duel-shadow-soft, 0 8px 20px rgba(17, 24, 39, .06))}.home-hero-video-frame video{display:block;width:100%;height:100%;background:var(--duel-ink);object-fit:cover}.home-video-caption{margin:10px 0 0;color:var(--duel-muted);font-size:13px;line-height:20px;text-align:right}.home-section{display:grid;grid-template-columns:280px minmax(0,1fr);gap:48px;padding:52px 0;border-top:1px solid var(--duel-line-strong)}.home-section-heading h2{margin:10px 0 0;color:var(--duel-ink);font-family:var(--duel-font-display);font-size:clamp(26px,3vw,38px);font-weight:700;line-height:1.02;letter-spacing:0}.home-process-list{margin:0;padding:0;border-top:1px solid var(--duel-line);list-style:none}.home-process-list li{display:grid;grid-template-columns:74px minmax(0,1fr);gap:20px;min-height:92px;padding:16px 0;border-bottom:1px solid var(--duel-line)}.home-process-index{color:var(--duel-subtle);font:600 14px/22px var(--duel-font-code)}.home-process-list h3{margin:0;color:var(--duel-ink);font-size:18px;line-height:26px;font-weight:700}.home-process-list p{max-width:660px;margin:8px 0 0;color:var(--duel-muted);font-size:14px;line-height:23px}.home-modes-section{padding-bottom:20px}.home-mode-list{border-top:1px solid var(--duel-line)}.home-mode-row{display:grid;grid-template-columns:84px minmax(0,1fr) max-content;align-items:center;gap:22px;min-height:108px;padding:18px 0;color:var(--duel-text);border-bottom:1px solid var(--duel-line);text-decoration:none}.home-mode-row:hover,.home-mode-row:focus-visible{color:var(--duel-ink);outline:0}.home-mode-row:focus-visible .home-mode-action{outline:2px solid var(--duel-gold);outline-offset:4px}.home-mode-badge{display:inline-flex;align-items:center;justify-content:center;min-height:36px;color:var(--duel-ink);border:1px solid currentColor;border-radius:var(--duel-radius-sm);font:600 13px/20px var(--duel-font-code)}.home-mode-row-red .home-mode-badge{color:var(--duel-red);background:var(--duel-red-soft)}.home-mode-row-blue .home-mode-badge{color:var(--duel-blue);background:var(--duel-blue-soft)}.home-mode-copy{display:grid;gap:8px}.home-mode-copy strong{color:var(--duel-ink);font-size:20px;line-height:28px;font-weight:700}.home-mode-copy span{max-width:660px;color:var(--duel-muted);font-size:14px;line-height:23px}.home-mode-action{color:var(--duel-blue);font-size:14px;line-height:22px;font-weight:700;white-space:nowrap}.home-mode-row-red:hover .home-mode-action,.home-mode-row-red:focus-visible .home-mode-action{color:var(--duel-red)}.home-mode-row-blue:hover .home-mode-action,.home-mode-row-blue:focus-visible .home-mode-action{color:var(--duel-blue)}@media(max-width:1080px){.home-main{width:min(100% - 32px,720px);padding-top:42px}.home-hero{grid-template-columns:1fr;gap:42px;padding-bottom:52px}.home-hero-copy{max-width:none}.home-hero-video-column{margin-left:0}.home-section{grid-template-columns:1fr;gap:28px}}@media(max-width:760px){.home-main{width:calc(100% - 32px);padding:34px 0 58px}.home-hero{padding-top:4px}.home-hero h1{font-size:clamp(36px,10vw,50px)}.home-title-line{white-space:normal}.home-hero-subtitle{font-size:16px;line-height:26px}.home-hero-actions{align-items:stretch;flex-direction:column}.home-video-caption{text-align:left}.home-section{padding:46px 0}.home-process-list li{grid-template-columns:50px minmax(0,1fr);gap:14px}.home-mode-row{grid-template-columns:68px minmax(0,1fr);gap:16px;min-height:0}.home-mode-action{grid-column:2;justify-self:start}}.duel-animated-background{position:relative;isolation:isolate;overflow-x:hidden;background:var(--duel-bg, #f7f9fc)}.duel-animated-background:before,.duel-animated-background:after{position:fixed;left:var(--duel-cross-x, 50%);top:var(--duel-cross-y, 42%);z-index:0;width:max(170vw,170vh);height:10vh;max-height:88px;min-height:52px;border-radius:999px;content:"";opacity:.14;pointer-events:none;transform-origin:center;will-change:transform}.duel-animated-background:before{background:linear-gradient(90deg,transparent 0%,rgba(240,68,82,.2) 18%,rgba(240,68,82,.2) 82%,transparent 100%);animation:duel-background-red-line 5.2s cubic-bezier(.68,0,.32,1) infinite}.duel-animated-background:after{background:linear-gradient(90deg,transparent 0%,rgba(37,99,255,.18) 18%,rgba(37,99,255,.18) 82%,transparent 100%);animation:duel-background-blue-line 5.2s cubic-bezier(.68,0,.32,1) infinite}.duel-animated-background.is-line-swapped:before{background:linear-gradient(90deg,transparent 0%,rgba(37,99,255,.18) 18%,rgba(37,99,255,.18) 82%,transparent 100%)}.duel-animated-background.is-line-swapped:after{background:linear-gradient(90deg,transparent 0%,rgba(240,68,82,.2) 18%,rgba(240,68,82,.2) 82%,transparent 100%)}.duel-animated-background>*{position:relative;z-index:1}@keyframes duel-background-red-line{0%{transform:translate(-50%,-50%) rotate(24deg) translate(calc(var(--duel-line-direction, 1) * -122vw))}50%{transform:translate(-50%,-50%) rotate(24deg) translate(0)}to{transform:translate(-50%,-50%) rotate(24deg) translate(calc(var(--duel-line-direction, 1) * 122vw))}}@keyframes duel-background-blue-line{0%{transform:translate(-50%,-50%) rotate(-24deg) translate(calc(var(--duel-line-direction, 1) * 122vw))}50%{transform:translate(-50%,-50%) rotate(-24deg) translate(0)}to{transform:translate(-50%,-50%) rotate(-24deg) translate(calc(var(--duel-line-direction, 1) * -122vw))}}@media(prefers-reduced-motion:reduce){.duel-animated-background:before{animation:none;transform:translate(-50%,-50%) rotate(24deg);opacity:.12}.duel-animated-background:after{animation:none;transform:translate(-50%,-50%) rotate(-24deg);opacity:.12}}*{box-sizing:border-box}html,body,#app{width:100%;height:100%;margin:0}body{color:#111827;background:#f7f9fc;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}#app{min-height:100%}