.nav{display:flex;align-items:center;justify-content:space-between;position:fixed;top:calc(22px + env(safe-area-inset-top));left:0;right:0;z-index:50;padding:0 calc(36px + env(safe-area-inset-right)) 0 calc(36px + env(safe-area-inset-left));pointer-events:none}.brand{display:inline-flex;align-items:center;gap:10px;padding:9px 18px 9px 12px;background:var(--pill-bg);border:1px solid var(--line-soft);border-radius:999px;backdrop-filter:blur(14px) saturate(140%);-webkit-backdrop-filter:blur(14px) saturate(140%);font-size:13px;font-weight:var(--weight-body-strong);text-decoration:none;color:inherit;transition:transform .26s ease,border-color .26s ease,color .26s ease}.brand:hover{transform:translateY(-1px);border-color:var(--line)}.brand:active{transform:translateY(0);transition-duration:.12s}.brand:focus-visible{outline:2px solid var(--accent);outline-offset:3px}.brand .dot{width:11px;height:11px;border-radius:50%;background:var(--accent);box-shadow:inset 0 0 0 2px 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ease}.menu-toggle:hover{transform:translateY(-1px);border-color:var(--line)}.menu-toggle:active{transform:translateY(0)}.menu-toggle-line{display:block;width:16px;height:2px;background-color:var(--ink-soft);border-radius:99px;transition:transform .3s cubic-bezier(.25,.46,.45,.94),opacity .3s ease,background-color .3s ease}@media(max-width:768px){.nav{top:16px;padding:0 18px}.brand{display:inline-flex!important;align-items:center!important;gap:10px!important;padding:9px 18px 9px 12px!important;background:var(--pill-bg)!important;border:1px solid var(--line-soft)!important;border-radius:999px!important;backdrop-filter:blur(14px) saturate(140%)!important;-webkit-backdrop-filter:blur(14px) saturate(140%)!important;box-shadow:none!important}.nav-right{display:flex!important;align-items:center!important;gap:8px!important}.theme-toggle{display:inline-flex!important;align-items:center!important;gap:8px!important;padding:9px 16px!important;background:var(--pill-bg)!important;border:1px solid var(--line-soft)!important;border-radius:999px!important;backdrop-filter:blur(14px) saturate(140%)!important;-webkit-backdrop-filter:blur(14px) saturate(140%)!important;box-shadow:none!important;transform:none!important;height:auto!important}.theme-toggle:hover{transform:translateY(-1px)!important}.menu-toggle{display:flex!important;width:42px!important;height:42px!important;border-radius:50%!important;background:var(--pill-bg)!important;border:1px solid var(--line-soft)!important;backdrop-filter:blur(14px) saturate(140%)!important;-webkit-backdrop-filter:blur(14px) saturate(140%)!important;box-shadow:none!important;transform:none!important}.menu-toggle:hover{transform:translateY(-1px)!important}.menu-toggle.menu-open .menu-toggle-line:nth-child(1){transform:translateY(6px) rotate(45deg)!important}.menu-toggle.menu-open .menu-toggle-line:nth-child(2){opacity:0!important}.menu-toggle.menu-open .menu-toggle-line:nth-child(3){transform:translateY(-6px) rotate(-45deg)!important}.center-nav-wrap{display:flex!important;position:fixed!important;top:74px!important;left:50%!important;right:auto!important;width:auto!important;transform:translate(-50%,-12px)!important;z-index:55!important;opacity:0!important;pointer-events:none!important;transition:opacity .38s cubic-bezier(.22,1,.36,1),transform .38s cubic-bezier(.22,1,.36,1)!important}.center-nav-wrap.menu-open{opacity:1!important;pointer-events:auto!important;transform:translate(-50%)!important}.center-nav{display:flex!important;flex-direction:row!important;width:auto!important;border-radius:999px!important;padding:6px!important;background:#ffffff59!important;border:1px solid var(--glass-stroke)!important;box-shadow:var(--shadow-soft)!important;backdrop-filter:blur(24px) saturate(140%)!important;-webkit-backdrop-filter:blur(24px) saturate(140%)!important;gap:4px!important}:root[data-theme=dark] .center-nav{background:#19151159!important}.nav-item{width:auto!important;text-align:center!important;padding:8px 18px!important;border-radius:999px!important}.nav-item.active{padding-right:14px!important}}.page-enter-active{transition:opacity .6s cubic-bezier(.22,1,.36,1),transform .6s cubic-bezier(.22,1,.36,1),filter .6s ease}.page-leave-active{transition:opacity .3s cubic-bezier(.22,1,.36,1),transform .3s cubic-bezier(.22,1,.36,1),filter .3s ease}.page-enter-from{opacity:0;transform:translateY(24px);filter:blur(6px)}.page-leave-to{opacity:0;transform:translateY(-24px);filter:blur(6px)}.page-scroll-enter-active{transition:opacity .6s cubic-bezier(.22,1,.36,1),transform .6s cubic-bezier(.22,1,.36,1),filter .6s ease}.page-scroll-leave-active{transition:opacity .3s cubic-bezier(.22,1,.36,1),transform .3s cubic-bezier(.22,1,.36,1),filter .3s ease}.page-scroll-enter-from{opacity:0;transform:translateY(-80px);filter:blur(6px)}.page-scroll-leave-to{opacity:0;transform:translateY(40px);filter:blur(6px)}@media(prefers-reduced-motion:reduce){.page-enter-active,.page-leave-active,.page-scroll-enter-active,.page-scroll-leave-active{transition:opacity .15s ease!important;transform:none!important;filter:none!important}.page-enter-from,.page-leave-to,.page-scroll-enter-from,.page-scroll-leave-to{opacity:0!important;transform:none!important;filter:none!important}}:root[data-theme=light]{color-scheme:light;--bg: oklch(96.8% .008 88);--ink: oklch(32% .02 75);--ink-soft: oklch(46% .018 75);--ink-faint: oklch(62% .015 75);--line: oklch(82% .012 85);--line-soft: oklch(90% .01 85);--paper: oklch(99% .004 90);--paper-2: oklch(95% .008 88);--accent: oklch(86% .1 88);--accent-ink: oklch(36% .04 75);--sponsor: oklch(88% .045 300);--sponsor-ink: oklch(40% .07 295);--window-bg: oklch(98% .005 90 / .9);--window-stroke: oklch(70% .015 80 / .35);--block: oklch(86% .012 80);--block-2: oklch(80% .014 75);--pill-bg: oklch(94% .008 85 / .55);--glass-stroke: oklch(80% .012 85 / .5);--wechat: oklch(72% .17 148);--wechat-soft: oklch(95% .05 148);--alipay: oklch(63% .19 245);--alipay-soft: oklch(95% .04 245);--weight-body: 400;--weight-body-strong: 500;--weight-h: 600;--weight-eyebrow: 500;--shadow-soft: 0 1px 0 oklch(100% 0 0 / .8) inset, 0 24px 60px -28px oklch(40% .02 45 / .22), 0 6px 18px -12px oklch(40% .02 45 / .14);--sh-1: oklch(91% .024 20);--sh-2: oklch(91% .024 50);--sh-3: oklch(91% .024 85);--sh-4: oklch(91% .024 130);--sh-5: oklch(91% .024 175);--sh-6: oklch(91% .024 220);--sh-7: oklch(91% .024 270);--sh-8: oklch(91% .024 320);--sh-mark-1: var(--sh-1);--sh-mark-2: var(--sh-2);--sh-mark-3: var(--sh-3);--sh-mark-4: var(--sh-4);--sh-mark-5: var(--sh-5);--sh-mark-6: var(--sh-6);--sh-mark-7: var(--sh-7);--sh-mark-8: var(--sh-8)}:root[data-theme=dark]{color-scheme:dark;--bg: oklch(16% .012 65);--ink: oklch(95% .01 88);--ink-soft: oklch(75% .012 85);--ink-faint: oklch(52% .014 75);--line: oklch(36% .014 65);--line-soft: oklch(30% .012 65);--paper: oklch(27% .014 65);--paper-2: oklch(30% .014 65);--accent: oklch(82% .085 88);--accent-ink: oklch(18% .05 75);--sponsor: oklch(34% .04 295);--sponsor-ink: oklch(88% .045 300);--window-bg: oklch(28% .014 65 / .82);--window-stroke: oklch(55% .015 75 / .25);--block: oklch(32% .014 70);--block-2: oklch(40% .018 70);--pill-bg: oklch(26% .014 70 / .5);--glass-stroke: oklch(60% .015 75 / .25);--wechat: oklch(65% .15 148);--wechat-soft: oklch(30% .06 148);--alipay: oklch(58% .17 245);--alipay-soft: oklch(28% .06 245);--weight-body: 200;--weight-body-strong: 300;--weight-h: 300;--weight-eyebrow: 300;--shadow-soft: 0 1px 0 oklch(100% 0 0 / .04) inset, 0 24px 60px -28px oklch(0% 0 0 / .55), 0 6px 18px -12px oklch(0% 0 0 / .4);--sh-1: oklch(23% .03 20);--sh-2: oklch(23% .03 50);--sh-3: oklch(23% .03 85);--sh-4: oklch(23% .03 130);--sh-5: oklch(23% .03 175);--sh-6: oklch(23% .03 220);--sh-7: oklch(23% .03 270);--sh-8: oklch(23% .03 320);--sh-mark-1: oklch(68% .14 20);--sh-mark-2: oklch(68% .14 50);--sh-mark-3: oklch(74% .14 85);--sh-mark-4: oklch(70% .14 130);--sh-mark-5: oklch(70% .14 175);--sh-mark-6: oklch(68% .14 220);--sh-mark-7: oklch(68% .15 270);--sh-mark-8: oklch(68% .15 320)}@font-face{font-family:OPPO Sans Web;src:url(/assets/oppo-sans-subset-B24FmcAe.woff2) format("woff2");font-weight:100 700;font-style:normal;font-display:swap}@font-face{font-family:Xiangcui Chaoxi Song;src:url(/assets/xiangcui-subset-BmfGhMI_.woff2) format("woff2");font-weight:400;font-style:normal;font-display:swap}:root{--font-body: "OPPO Sans Web", -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC", "Microsoft YaHei", sans-serif;--font-display: "Xiangcui Chaoxi Song", "OPPO Sans Web", "Songti SC", "STSong", "Noto Serif CJK SC", 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svg{width:22px;height:22px}.center-nav-wrap{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);pointer-events:auto;z-index:1}@media(max-width:700px){.center-nav-wrap{display:none}}main{position:relative;z-index:2}.eyebrow{display:inline-flex;align-items:center;gap:12px;font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:var(--ink-faint);font-weight:var(--weight-eyebrow)}.eyebrow:before{content:"";width:28px;height:1px;background:var(--ink-faint)}