@import"https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@400;500;600&display=swap";:root{font-family:Helvetica Neue,PingFang SC,Microsoft YaHei,sans-serif;color:#2e443b;background:#f6f5ee;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;--ink: #2e443b;--muted: #66756c;--soft: #768179;--line: #38514326;--surface: #f6f5ee;--serif: "Noto Serif SC", "Songti SC", "SimSun", serif;color-scheme:light}:root[data-theme=night]{--ink: #e7ece3;--muted: #bac9c5;--soft: #a7bdbb;--line: #c5dcd32b;--surface: #152b35;color-scheme:dark}*{box-sizing:border-box}html,body,#app{margin:0;width:100%;height:100%;overflow:hidden}button,a{-webkit-tap-highlight-color:transparent}button{font:inherit;cursor:pointer}button,a{touch-action:manipulation}button{color:inherit}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible{outline:2px solid var(--ink);outline-offset:6px}button{border:0}::selection{background:#dfad7390}.portal{position:relative;isolation:isolate;display:flex;flex-direction:column;width:100%;height:100%;height:100dvh;min-height:0;overflow:hidden;color:var(--ink);background:var(--surface);opacity:0;filter:blur(18px);transform:scale(1.025);transition:filter 1.65s cubic-bezier(.2,.65,.3,1),opacity 1.3s ease,transform 2s cubic-bezier(.2,.65,.3,1),background 1.2s,color 1s}.portal.is-ready{opacity:1;filter:blur(0);transform:scale(1)}.sky{position:absolute;inset:0;z-index:-5;background:radial-gradient(ellipse at 78% 9%,#cde6eae0 0,#d7e8e869 34%,transparent 60%),linear-gradient(120deg,#f8f6ee 22%,#f6f4eb 57%,#e7eee7);transition:opacity 1.6s}.sky-glow{position:absolute;width:65vw;height:65vw;right:-25vw;top:-42vw;border-radius:50%;background:#fff8dca6;filter:blur(60px)}.sky-haze{position:absolute;inset:0;background:radial-gradient(ellipse at 63% 65%,#ffffff70,transparent 45%),radial-gradient(ellipse at 6% 95%,#efe8d896,transparent 45%)}.is-night .sky{opacity:0}.portal:before{position:absolute;content:"";inset:0;background:radial-gradient(ellipse at 80% 24%,#45607255,transparent 57%),radial-gradient(ellipse at 28% 97%,#38505144,transparent 40%);z-index:-4}.ribbon-scene{position:absolute;inset:0;z-index:-2;pointer-events:none;transition:opacity 1.5s}.ribbon-scene canvas{display:block;width:100%;height:100%}.ribbon-fallback{left:63%;top:-30%;width:32%;height:160%;border-radius:48% 30% 55% 50%;transform:rotate(-28deg);background:linear-gradient(90deg,#e99677,#f6c881 33%,#edebbe 53%,#88b4a5 77%,#aacacf);box-shadow:inset 20px 0 60px #fff5d796}.is-night .ribbon-fallback{background:linear-gradient(90deg,#6767a1,#9b91c1,#74b0b6)}.paper-grain{position:absolute;inset:0;z-index:5;pointer-events:none;opacity:.035;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.89' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Cpath fill='%23000' filter='url(%23n)' opacity='.8' d='M0 0h180v180H0z'/%3E%3C/svg%3E")}.header{height:118px;flex:0 0 auto;display:flex;align-items:center;justify-content:space-between;padding:0 5.55%;position:relative;z-index:2}.brand{display:inline-flex;align-items:baseline;gap:14px;white-space:nowrap}.brand-name{font-size:29px;font-weight:550;letter-spacing:-1.1px;line-height:1}.brand-divider{align-self:center;width:1px;height:18px;background:var(--line)}.brand-chinese{font-size:17px;font-weight:400;letter-spacing:2px;line-height:1}.theme-toggle{display:flex;align-items:center;justify-content:center;width:44px;height:44px;padding:12px;border-radius:50%;background:transparent;transition:background .3s}.theme-toggle:hover{background:var(--line)}.theme-toggle svg{transition:transform .5s}.theme-toggle:hover svg{transform:rotate(25deg)}.main{flex:1;min-height:0;position:relative;display:flex;align-items:center;padding:0 9.2%}.intro{margin-top:-12px;max-width:580px;position:relative;z-index:1}h1{font-family:var(--serif);font-weight:400;font-size:clamp(52px,5.1vw,82px);line-height:1.5;letter-spacing:.06em;margin:0 0 22px}h1>span:first-of-type{color:#567464}.is-night h1>span:first-of-type{color:#bad0c4}.title-period{color:#c4936f;margin-left:-.06em}.description{font-size:16px;color:var(--muted);line-height:2.05;letter-spacing:1px;margin:0 0 33px}.footer{display:flex;align-items:center;justify-content:space-between;min-height:80px;flex-shrink:0;margin:0 5.55%;border-top:1px solid var(--line);color:var(--soft);position:relative;z-index:1}.copyright{display:flex;align-items:center;gap:15px;font-size:12px;letter-spacing:.1px}.copyright a:hover{color:var(--ink);text-decoration:underline;text-underline-offset:4px}.footer-divider{opacity:.45}.stars{position:absolute;inset:0;pointer-events:none;opacity:0;transition:opacity 1.8s;z-index:-3}.is-night .stars{opacity:.8}.stars i{position:absolute;width:2px;height:2px;border-radius:50%;background:#edf0cb;left:calc(mod(var(--i) * 17,97)*1%);top:calc(mod(var(--i) * 23,89)*1%);animation:twinkle 5s ease-in-out infinite;animation-delay:calc(var(--i) * -.7s)}@keyframes twinkle{0%,to{opacity:.25}50%{opacity:.85}}@media(min-width:1700px){.intro{max-width:660px}.description{font-size:17px}}@media(max-width:1100px){.main{padding:0 7%}h1{font-size:60px}}@media(max-width:760px){.header{height:96px;padding:0 7%}.brand-name{font-size:25px}.brand-chinese{font-size:14px}.brand-divider{height:16px}.brand{gap:10px}.theme-toggle{min-width:auto;font-size:14px}.main{padding:0 8%;align-items:center}.intro{margin-top:-10px}h1{font-size:clamp(43px,7.8vw,59px);margin-bottom:22px}.description{font-size:16px;letter-spacing:0;margin-bottom:26px}.ribbon-scene{opacity:.84}.sky-haze{background:linear-gradient(90deg,#f7f5edcc,transparent 95%)}.portal:after{position:absolute;content:"";inset:0;z-index:-1;background:linear-gradient(90deg,#f8f6eee6 5%,#f8f6eeaa 42%,#f8f6ee00 95%);pointer-events:none}.is-night:after{background:linear-gradient(90deg,#152b35ed 5%,#152b35b8 45%,#152b3500 98%)}.footer{margin:0 7%;min-height:90px;align-items:center;gap:12px}.copyright{flex-direction:column;align-items:flex-start;gap:8px;font-size:12px;letter-spacing:0}.footer-divider{display:none}}@media(max-width:380px){h1{font-size:40px}.footer{margin:0 6%}}@media(max-height:720px)and (min-width:761px){.header{height:88px}.footer{min-height:62px}h1{font-size:57px;line-height:1.35;margin-bottom:18px}.description{margin-bottom:22px}}@media(max-height:650px)and (max-width:760px){.header{height:74px}.footer{min-height:72px}h1{font-size:42px;line-height:1.35;margin-bottom:16px}.description{margin-bottom:20px}}@media(max-height:480px){.header{height:62px}.footer{min-height:52px}.intro{margin:0}h1{font-size:35px;line-height:1.2;margin-bottom:12px}h1 br{display:none}.description{font-size:14px;line-height:1.7;margin-bottom:15px}}@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation:none!important;transition-duration:.01ms!important}.portal{filter:none;transform:none}}