/* 光环网 HALO NETWORK · 主站视觉系统 */
@font-face{font-family:"Halo Serif";font-style:normal;font-weight:400;font-display:swap;src:url(/assets/halo-serif-400.woff2) format("woff2")}
@font-face{font-family:"Halo Serif";font-style:normal;font-weight:700;font-display:swap;src:url(/assets/halo-serif-700.woff2) format("woff2")}
:root{
  --ink:#020306;--panel:#070a11;--paper:#f3f1ea;--text:#f5f4ef;--muted:#9a9da8;--faint:#626672;
  --blue:#2678ff;--blue-hi:#8bb8ff;--gold:#f3a52f;--gold-hi:#ffe0a0;
  --line:rgba(255,255,255,.12);--line-blue:rgba(66,135,255,.3);--line-gold:rgba(243,165,47,.28);
  --serif:"Halo Serif","Noto Serif SC","Source Han Serif SC","Songti SC",SimSun,serif;
  --sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Segoe UI",system-ui,sans-serif;
  --wrap:1380px;--ease:cubic-bezier(.16,1,.3,1)
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;background:var(--ink)}
body{margin:0;background:var(--ink);color:var(--text);font:16px/1.8 var(--sans);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:hidden}
a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button,a{-webkit-tap-highlight-color:transparent}
a:focus-visible{outline:2px solid var(--blue-hi);outline-offset:5px}
::selection{background:var(--blue);color:#fff}
.wrap{width:min(var(--wrap),calc(100% - 72px));margin-inline:auto}
h1,h2,h3{font-family:var(--serif);font-weight:700;line-height:1.06;letter-spacing:.01em;margin:0}
p{margin:0}.gold{color:var(--gold)}.blue{color:var(--blue-hi)}
.kicker{display:flex;align-items:center;gap:14px;color:var(--gold);font-size:11px;font-weight:600;letter-spacing:.34em;text-transform:uppercase}
.kicker::before{content:"";width:36px;height:1px;background:currentColor}
.section-head{display:grid;grid-template-columns:1fr 1fr;align-items:end;gap:60px;margin-bottom:70px}
.section-head h2{font-size:clamp(42px,6vw,88px)}
.section-head p{max-width:48ch;color:var(--muted);font-size:16px;line-height:2}
.block{position:relative;padding:clamp(100px,13vw,190px) 0}

/* 导航 */
.topnav{position:fixed;inset:0 0 auto;z-index:60;padding:20px 0;border-bottom:1px solid transparent;transition:padding .35s var(--ease),background .35s,border-color .35s}
.topnav.scrolled{padding:10px 0;background:rgba(2,3,6,.84);backdrop-filter:blur(18px) saturate(140%);border-bottom-color:var(--line)}
.topnav .wrap{display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand{display:inline-flex;align-items:center;flex:none}.brand img{width:156px;height:auto}
.topnav nav{display:flex;align-items:center;gap:2px}
.topnav nav a{padding:10px 13px;color:var(--muted);font-size:13px;transition:color .2s,background .2s}
.topnav nav a:hover,.topnav nav a.on{color:#fff}
.topnav nav a.on{color:var(--gold-hi)}
.topnav nav .enter{margin-left:12px;padding:10px 22px;border:1px solid var(--line-gold);color:var(--gold-hi)}
.topnav nav .enter:hover{background:var(--gold);border-color:var(--gold);color:#130c02}

/* 首屏 */
.hero{position:relative;isolation:isolate;min-height:100svh;display:grid;place-items:center;overflow:hidden;padding:130px 32px 120px;text-align:center}
.hero-bg{position:absolute;inset:-8%;z-index:-3;background:url(/assets/halo-eclipse.jpg) no-repeat center 46%/auto 270%;opacity:.9;animation:breathe 12s var(--ease) infinite alternate;will-change:transform}
.hero::before{content:"";position:absolute;inset:0;z-index:-2;background:radial-gradient(circle at 50% 45%,transparent 0 22%,rgba(2,3,6,.12) 42%,rgba(2,3,6,.7) 78%),linear-gradient(180deg,rgba(2,3,6,.25),transparent 50%,var(--ink) 98%)}
.hero::after{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;background:linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px) center/25% 100%;mask-image:linear-gradient(transparent,#000 20%,#000 80%,transparent)}
@keyframes breathe{from{transform:scale(1)}to{transform:scale(1.07)}}
.hero-inner{position:relative;width:100%}
.hero-mark{width:clamp(74px,8vw,124px);margin:0 auto clamp(12px,2vh,24px);filter:drop-shadow(0 0 28px rgba(38,120,255,.25));animation:markIn 1.2s var(--ease) both}
@keyframes markIn{from{opacity:0;transform:scale(.88) rotate(-5deg)}to{opacity:1;transform:none}}
.hero h1{font-size:clamp(100px,19vw,290px);line-height:.9;letter-spacing:.055em;text-indent:.055em;white-space:nowrap;text-shadow:0 10px 80px #000}
.hero h1 span{display:inline-block;background:linear-gradient(112deg,#fff 20%,#bcd6ff 47%,#fff 62%,#ffd180 90%);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .en{margin-top:28px;color:var(--gold-hi);font-size:11px;font-weight:600;letter-spacing:.68em;text-indent:.68em}
.hero .tagline{margin-top:clamp(26px,4vh,44px);font-family:var(--serif);font-size:clamp(20px,2.2vw,32px);letter-spacing:.18em;text-indent:.18em}
.hero .lede{margin:14px auto 0;max-width:52ch;color:#a9abb4;font-size:14px;letter-spacing:.06em}
.hero .cta{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin-top:32px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:50px;padding:13px 27px;border:1px solid transparent;font-size:14px;font-weight:600;letter-spacing:.06em;transition:transform .25s var(--ease),background .25s,color .25s,border-color .25s,box-shadow .25s}
.btn:hover{transform:translateY(-3px)}.btn:active{transform:scale(.98)}
.btn-gold{background:var(--gold);color:#160d01;box-shadow:0 12px 45px -18px rgba(243,165,47,.8)}
.btn-gold:hover{background:#ffc15c;box-shadow:0 18px 50px -18px rgba(243,165,47,.9)}
.btn-blue{background:var(--blue);color:#fff;box-shadow:0 12px 45px -18px rgba(38,120,255,.8)}
.btn-blue:hover{background:#4a8dff}
.btn-ghost{border-color:rgba(255,255,255,.25);background:rgba(2,3,6,.35);backdrop-filter:blur(10px)}
.btn-ghost:hover{border-color:var(--gold);color:var(--gold-hi)}
.hero-side{position:absolute;top:50%;color:#686b75;font-size:9px;letter-spacing:.45em;writing-mode:vertical-rl}
.hero-side.left{left:26px;transform:translateY(-50%) rotate(180deg)}.hero-side.right{right:26px;transform:translateY(-50%)}
.hero-foot{position:absolute;left:36px;right:36px;bottom:26px;display:flex;justify-content:space-between;align-items:center;color:#676b76;font-size:10px;letter-spacing:.24em}
.scroll-cue{display:flex;align-items:center;gap:12px}.scroll-cue::before{content:"";width:54px;height:1px;background:linear-gradient(90deg,var(--gold),transparent)}

/* 巨型宣言 */
.manifesto{padding:clamp(120px,16vw,240px) 0;border-top:1px solid var(--line);overflow:hidden}
.manifesto .line{display:block;font-family:var(--serif);font-size:clamp(48px,8.6vw,134px);font-weight:700;line-height:1.08;letter-spacing:-.025em}
.manifesto .line.dim{color:#4c505b}.manifesto .line.accent{color:var(--blue-hi)}
.manifesto .line.outline{color:transparent;-webkit-text-stroke:1px rgba(255,255,255,.48)}
.manifesto-note{display:grid;grid-template-columns:1fr 1fr;gap:40px;margin-top:64px;padding-top:26px;border-top:1px solid var(--line);color:var(--muted)}
.manifesto-note p{max-width:46ch}.manifesto-note p:last-child{justify-self:end}

/* 产品巨行 */
.products{border-top:1px solid var(--line)}
.p-row{position:relative;display:grid;grid-template-columns:90px minmax(280px,1fr) minmax(260px,.7fr) 64px;align-items:center;gap:28px;padding:46px 12px;border-top:1px solid var(--line);overflow:hidden;transition:background .35s,padding .35s var(--ease)}
.p-row:last-child{border-bottom:1px solid var(--line)}
.p-row::before{content:"";position:absolute;inset:0;z-index:-1;opacity:0;background:linear-gradient(90deg,rgba(38,120,255,.15),transparent 65%);transform:translateX(-20%);transition:opacity .35s,transform .5s var(--ease)}
.p-row:nth-child(even)::before{background:linear-gradient(90deg,rgba(243,165,47,.12),transparent 65%)}
.p-row:hover{padding-left:28px}.p-row:hover::before{opacity:1;transform:none}
.p-row .num{align-self:start;padding-top:8px;color:var(--faint);font:12px/1 var(--sans);letter-spacing:.2em}
.p-row h3{font-size:clamp(42px,5.8vw,84px);letter-spacing:-.02em}
.p-row .host{display:block;margin-top:15px;color:var(--faint);font:11px/1.4 var(--sans);letter-spacing:.12em}
.p-row .desc{color:var(--muted);font-size:15px;line-height:1.9}
.p-row .arrow{width:56px;height:56px;display:grid;place-items:center;border:1px solid var(--line);border-radius:50%;font-size:24px;transition:transform .35s var(--ease),background .35s,color .35s}
.p-row:hover .arrow{transform:rotate(-45deg);background:var(--text);color:var(--ink)}

/* 统一账号 */
.id-band{position:relative;isolation:isolate;padding:clamp(110px,14vw,200px) 0;text-align:center;overflow:hidden;border-bottom:1px solid var(--line)}
.id-band::before{content:"ONE ID";position:absolute;left:50%;top:50%;z-index:-1;transform:translate(-50%,-50%);white-space:nowrap;font:700 clamp(140px,25vw,390px)/1 var(--serif);letter-spacing:-.05em;color:transparent;-webkit-text-stroke:1px rgba(76,137,255,.12)}
.id-orbit{width:90px;margin:0 auto 30px}.id-band h2{font-size:clamp(42px,6.5vw,92px)}
.id-band>p{max-width:58ch;margin:28px auto 0;color:var(--muted);font-size:17px;line-height:2}
.domains{position:relative;display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin-top:38px}
.domains a{padding:8px 14px;border:1px solid var(--line);color:var(--muted);font:12px/1.5 ui-monospace,SFMono-Regular,Consolas,monospace;transition:color .2s,border-color .2s,transform .2s}
.domains a:hover{color:#fff;border-color:var(--blue);transform:translateY(-2px)}

/* 双入口 */
.duo{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line)}
.pane{position:relative;min-height:440px;padding:clamp(38px,5vw,74px);background:#070a11;overflow:hidden}
.pane::after{content:"";position:absolute;width:360px;height:360px;right:-160px;top:-170px;border:1px solid var(--line-blue);border-radius:50%;box-shadow:0 0 90px rgba(38,120,255,.12)}
.pane.gold-pane::after{border-color:var(--line-gold);box-shadow:0 0 90px rgba(243,165,47,.1)}
.pane .index{color:var(--faint);font-size:11px;letter-spacing:.25em}.pane h3{margin-top:70px;font-size:clamp(34px,4vw,58px)}
.pane p{max-width:43ch;margin-top:22px;color:var(--muted)}.pane .btn{margin-top:32px}

/* 页脚 */
footer{padding:78px 0 34px;border-top:1px solid var(--line)}
.foot-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:46px}.foot-brand img{width:190px}.foot-brand p{max-width:36ch;margin-top:22px;color:var(--faint);font-size:13px}
footer h4{margin:0 0 18px;color:var(--gold);font-size:10px;letter-spacing:.26em}footer ul{list-style:none;margin:0;padding:0}footer li{margin-bottom:10px}footer li a{color:var(--muted);font-size:13px;transition:color .2s}footer li a:hover{color:#fff}
.foot-base{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;margin-top:60px;padding-top:24px;border-top:1px solid var(--line);color:var(--faint);font-size:11px;letter-spacing:.04em}.foot-base a:hover{color:var(--gold)}

/* 子页面 */
.page-hero{position:relative;padding:clamp(160px,18vw,250px) 0 clamp(70px,8vw,110px);overflow:hidden;border-bottom:1px solid var(--line)}
.page-hero::after{content:"";position:absolute;right:-10vw;top:-30%;width:60vw;aspect-ratio:1;border-radius:50%;background:radial-gradient(circle,rgba(38,120,255,.12),transparent 65%);pointer-events:none}
.page-hero h1{margin-top:26px;font-size:clamp(68px,12.5vw,184px);letter-spacing:-.045em}
.page-hero .lede{max-width:54ch;margin-top:30px;color:var(--muted);font-size:17px;line-height:2}
.page-hero .big-en{position:absolute;right:0;bottom:20px;color:transparent;-webkit-text-stroke:1px rgba(255,255,255,.08);font:700 clamp(80px,16vw,240px)/1 var(--serif);pointer-events:none}

/* 动态 */
.feed{display:grid;grid-template-columns:1fr 1fr;border-top:1px solid var(--line);border-left:1px solid var(--line)}
.item{position:relative;display:block;min-height:240px;padding:30px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);transition:background .25s}
.item:hover{background:#0a0f1b}.item .item-no{color:var(--blue-hi);font:11px/1 var(--sans);letter-spacing:.18em}.item h3{margin-top:34px;font-size:clamp(21px,2vw,29px);line-height:1.45}
.item .meta{display:flex;gap:16px;flex-wrap:wrap;margin-top:26px;color:var(--faint);font-size:12px}.item .meta b{color:var(--gold);font-weight:500}
.status{grid-column:1/-1;padding:60px 30px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);color:var(--muted);text-align:center}.status a{color:var(--gold)}
.center-cta{display:flex;justify-content:center;margin-top:40px}

/* 关于 */
.logo-specimen{display:grid;place-items:center;min-height:360px;padding:60px;background:#f5f5f2}.logo-specimen img{width:min(680px,100%)}
.about-intro{display:grid;grid-template-columns:1.2fr .8fr;gap:80px}.about-intro h2{font-size:clamp(40px,5.5vw,76px)}.about-intro .copy{color:var(--muted);font-size:17px;line-height:2.1}.about-intro .copy p+p{margin-top:22px}
.timeline{border-top:1px solid var(--line)}.tl-item{display:grid;grid-template-columns:240px 1fr;gap:40px;padding:42px 10px;border-bottom:1px solid var(--line)}
.tl-item .y{color:var(--gold);font:700 clamp(44px,6vw,82px)/1 var(--serif)}.tl-item h3{font-size:clamp(25px,3vw,38px)}.tl-item p{max-width:66ch;margin-top:14px;color:var(--muted)}
.principles{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line)}.principle{padding:36px;border-right:1px solid var(--line)}.principle:last-child{border:0}.principle .n{color:var(--blue-hi);font-size:11px;letter-spacing:.2em}.principle h3{margin-top:44px;font-size:28px}.principle p{margin-top:16px;color:var(--muted);font-size:14px}

/* App */
.app-hero{display:grid;grid-template-columns:1.1fr .9fr;gap:70px;align-items:center}.app-hero h1{font-size:clamp(64px,9vw,130px)}.version{display:inline-block;margin-top:28px;padding:6px 12px;border:1px solid var(--line-gold);color:var(--gold-hi);font-size:12px;letter-spacing:.15em}
.download-card{padding:clamp(32px,5vw,60px);border:1px solid var(--line-blue);background:radial-gradient(circle at 100% 0,rgba(38,120,255,.2),transparent 55%),#070b14}.download-card .apk{color:var(--faint);font:11px/1.6 ui-monospace,monospace;word-break:break-all}.download-card h2{margin-top:22px;font-size:34px}.download-card .btn{width:100%;margin-top:30px}.dl-meta{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:30px;padding-top:24px;border-top:1px solid var(--line)}.dl-meta b{display:block;color:var(--text);font-size:14px}.dl-meta span{color:var(--faint);font-size:10px;letter-spacing:.14em}
.releases{border-top:1px solid var(--line)}.release{display:grid;grid-template-columns:180px 1fr;gap:50px;padding:44px 0;border-bottom:1px solid var(--line)}.release .rv{color:var(--blue-hi);font:700 28px/1.2 var(--serif)}.release .rv time{display:block;margin-top:12px;color:var(--faint);font:11px/1.4 var(--sans)}.release h3{font-size:30px}.release ul{margin:20px 0 0;padding-left:18px;color:var(--muted)}.release li+li{margin-top:8px}

/* 404 */
.error-page{min-height:100svh;display:grid;place-items:center;text-align:center;padding:130px 24px 70px;background:radial-gradient(circle at 50% 40%,rgba(38,120,255,.12),transparent 42%)}
.error-page img{width:92px;margin:0 auto 24px}.error-code{font:700 clamp(130px,28vw,400px)/.8 var(--serif);color:transparent;-webkit-text-stroke:1px rgba(255,255,255,.5)}.error-page h1{margin-top:42px;font-size:clamp(30px,4vw,52px)}.error-page p{margin:20px auto 0;color:var(--muted)}.error-page .cta{display:flex;justify-content:center;gap:12px;margin-top:34px}

/* 动效 */
.js .rise{display:block;overflow:hidden}.js .rise>span{display:inline-block;transform:translateY(112%);opacity:0;transition:transform 1s var(--ease),opacity 1s var(--ease)}.js .rise.in>span{transform:none;opacity:1}
.js .reveal{opacity:0;transform:translateY(28px);transition:opacity .8s var(--ease),transform .8s var(--ease)}.js .reveal.in{opacity:1;transform:none}
.js .d1{transition-delay:.08s}.js .d2{transition-delay:.16s}.js .d3{transition-delay:.24s}

@media(max-width:1080px){
  .topnav nav a{padding:9px 8px}.p-row{grid-template-columns:60px 1fr 1fr 54px}.section-head{gap:35px}
  .foot-grid{grid-template-columns:1.5fr 1fr 1fr}.foot-grid>div:last-child{display:none}
}
@media(max-width:820px){
  .wrap{width:calc(100% - 40px)}.topnav nav a:not(.enter){display:none}.brand img{width:138px}
  .hero{padding-inline:20px}.hero-side{display:none}.hero h1{font-size:clamp(82px,22vw,170px)}.hero-foot{left:20px;right:20px}.hero-foot>span:last-child{display:none}
  .section-head,.manifesto-note,.about-intro,.app-hero{grid-template-columns:1fr;gap:28px}.manifesto-note p:last-child{justify-self:start}
  .p-row{grid-template-columns:42px 1fr 52px;padding:34px 4px}.p-row .desc{grid-column:2/3}.p-row .arrow{grid-column:3;grid-row:1/3}.p-row:hover{padding-left:12px}
  .duo{grid-template-columns:1fr}.pane{min-height:380px}.feed{grid-template-columns:1fr}.item{min-height:210px}
  .tl-item{grid-template-columns:140px 1fr;gap:24px}.principles{grid-template-columns:1fr}.principle{border-right:0;border-bottom:1px solid var(--line)}
  .release{grid-template-columns:130px 1fr;gap:25px}.foot-grid{grid-template-columns:1fr 1fr}.foot-brand{grid-column:1/-1}
}
@media(max-width:520px){
  .hero{min-height:860px}.hero h1{font-size:25vw;letter-spacing:0;text-indent:0}.hero .en{font-size:9px;letter-spacing:.42em;text-indent:.42em}.hero .tagline{letter-spacing:.08em}.hero .lede{font-size:13px}
  .hero-foot{font-size:9px}.manifesto .line{font-size:12.5vw}.section-head h2{font-size:12vw}
  .p-row{grid-template-columns:1fr 44px}.p-row .num{display:none}.p-row .desc{grid-column:1}.p-row .arrow{grid-column:2;width:44px;height:44px}.p-row h3{font-size:13vw}
  .id-band>p{font-size:15px}.domains{justify-content:flex-start}.page-hero h1{font-size:20vw}.page-hero .big-en{display:none}
  .tl-item,.release{grid-template-columns:1fr}.tl-item{gap:18px}.logo-specimen{min-height:250px;padding:30px 20px}
  .dl-meta{grid-template-columns:1fr}.foot-grid{grid-template-columns:1fr 1fr;gap:30px}.foot-base{flex-direction:column}.duo .pane{padding:34px 26px}.error-page .cta{flex-direction:column}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  .js .rise>span,.js .reveal{transform:none;opacity:1}
}