/* 方向 C · 官网（逆向 suno.com）：#101012 暗场 + 大留白 + 蓝绿渐变光晕；只作用于 body.site，工作台不受影响 */
body.site{--sb:#101012;--sf:#F7F4EF;--sf2:rgba(247,244,239,.7);--sf3:rgba(247,244,239,.42);--sg2:rgba(255,255,255,.08);--sl:rgba(255,255,255,.1);--pk:#1FD1A5;--am:#2F7BFF;--pink:#1FD1A5;--pink-2:#5BE3C0;--pink-s:rgba(31,209,165,.10);--se:cubic-bezier(.33,1,.68,1);
  --sff:'Inter Tight','Noto Sans SC','PingFang SC','Microsoft YaHei',system-ui,sans-serif;
  --aura:radial-gradient(120% 160% at 0% 50%,#2F7BFF 0%,rgba(47,123,255,0) 55%),radial-gradient(120% 160% at 100% 40%,#1FD1A5 0%,rgba(31,209,165,0) 62%),#1BA3C9;
  background:var(--sb);color:var(--sf);font:400 16px/1.5 var(--sff)}
html:has(body.site){background:#101012}
body.site a{color:inherit;text-decoration:none}
body.site #view{min-height:0}
body.site #view>.page{margin-top:76px}
.sw{max-width:1240px;margin:0 auto;padding:0 20px}

/* 顶栏 */
.sn-top{position:fixed;top:0;left:0;right:0;z-index:60;transition:background .3s var(--se)}
.sn-top.solid{background:rgba(16,16,18,.78);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}
.sn-top.menu,.sn-top.mob{background:#101012}
.sn-bar{max-width:1240px;height:76px;margin:0 auto;padding:20px;display:flex;align-items:center;justify-content:space-between}
.sn-l{display:flex;align-items:center;gap:40px}
.sn-logo{display:flex;align-items:center;height:36px}
.sn-nav{display:flex;gap:4px}
.sn-ni{display:inline-flex;align-items:center;gap:6px;height:36px;padding:6px 12px;border-radius:999px;border:0;background:transparent;color:var(--sf);font:500 15px/1 var(--sff);cursor:pointer;transition:background .15s}
.sn-ni:hover,.sn-dd.open>.sn-ni{background:var(--sg2)}
.sn-ni svg{opacity:.7;transition:transform .2s var(--se)}
.sn-dd.open>.sn-ni svg{transform:rotate(180deg)}
.sn-r{display:flex;align-items:center;gap:8px}
.sn-lang,.sn-login{height:40px;padding:0 14px;border-radius:999px;border:0;background:transparent;color:var(--sf);font:500 15px var(--sff);cursor:pointer;transition:background .15s}
.sn-lang{color:var(--sf2);font-size:13px}
.sn-lang:hover,.sn-login:hover{background:var(--sg2);color:var(--sf)}
.sn-aura{position:relative;display:inline-flex;align-items:center;justify-content:center;gap:8px;height:40px;padding:0 18px;border-radius:999px;border:0;color:#fff;font:500 15px var(--sff);cursor:pointer;white-space:nowrap;
  background:var(--aura);background-size:180% 180%;animation:snAura 9s ease-in-out infinite;transition:transform .2s var(--se),filter .2s}
.sn-aura:hover{filter:brightness(1.08)}.sn-aura:active{transform:scale(.97)}
#gen{overflow:hidden;isolation:isolate}
#gen::after{content:'';position:absolute;inset:-2px;z-index:1;pointer-events:none;background:radial-gradient(90px 90px at var(--mx,50%) var(--my,50%),rgba(255,255,255,.55),transparent 65%);opacity:0;transition:opacity .25s}
#gen:hover::after{opacity:1}
#gen>*{position:relative;z-index:2}
.sn-aura.lg{height:56px;padding:0 36px;font-size:17px}
@keyframes snAura{0%,100%{background-position:50% 50%}25%{background-position:30% 70%}50%{background-position:70% 30%}75%{background-position:40% 60%}}

/* 下拉：整宽面板 + 模糊遮罩（suno：opacity .2s cubic-bezier(.33,1,.68,1)，遮罩 blur 8px） */
.sn-menu{position:absolute;left:0;right:0;top:76px;background:#101012;border-bottom:1px solid var(--sl);opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .2s var(--se),transform .2s var(--se),visibility 0s .2s}
.sn-dd.open .sn-menu{opacity:1;visibility:visible;transform:none;transition-delay:0s}
.sn-mi{max-width:1240px;margin:0 auto;padding:16px 20px 40px;display:grid;grid-template-columns:minmax(0,1fr) 380px;gap:32px}
.sn-ml{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:4px;align-content:start}
.sn-mlink{display:block;padding:14px 16px;border-radius:12px;transition:background .15s}
.sn-mlink:hover{background:var(--sg2)}
.sn-mlink b{display:block;font:500 15px/1.4 var(--sff);color:var(--sf)}
.sn-mlink span{display:block;font-size:13px;line-height:1.55;color:var(--sf2);margin-top:4px}
.sn-mfeat{position:relative;isolation:isolate;overflow:hidden;border-radius:16px;min-height:220px;display:flex;align-items:flex-end;padding:20px}
.sn-mfeat img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2;transition:transform .6s var(--se)}
.sn-mfeat:hover img{transform:scale(1.04)}
.sn-mfeat::after{content:'';position:absolute;inset:0;z-index:-1;background:linear-gradient(to top,rgba(16,16,18,.92),rgba(16,16,18,.2))}
.sn-mfeat small{display:block;font-size:12px;color:var(--sf3)}
.sn-mfeat b{display:block;font:500 18px/1.35 var(--sff);margin-top:6px}
.sn-mfeat span{display:block;font-size:13px;color:var(--sf2);margin-top:4px}
.sn-scrim{position:fixed;inset:76px 0 0;z-index:-1;background:rgba(16,16,18,.4);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);opacity:0;visibility:hidden;transition:opacity .2s var(--se),visibility 0s .2s}
.sn-top.menu .sn-scrim{opacity:1;visibility:visible;transition-delay:0s}
.sn-burger{display:none!important}
.sn-mob{display:none;position:fixed;inset:76px 0 0;background:#101012;padding:8px 20px 40px;overflow:auto}
.sn-top.mob .sn-mob{display:block}
.sn-mob h5{font:500 12px var(--sff);letter-spacing:.08em;color:var(--sf3);margin:28px 0 6px}
.sn-mob a{display:block;padding:13px 0;font-size:17px;border-bottom:1px solid var(--sl)}
.sn-mob .sn-aura{width:100%;margin-top:32px;height:52px}
/* Hero：满屏光晕图 + 两侧倾斜模糊歌曲卡 + 打字标题 + 对话框 */
.sh{position:relative;isolation:isolate;min-height:100svh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:120px 0 80px;overflow:hidden}
.sh-bg{position:absolute;inset:0;z-index:-2;background:#101012 url(../assets/home/hero.jpg) center 60%/cover no-repeat;opacity:.9;filter:hue-rotate(180deg) saturate(1.05)}
.sh-bg::after{content:'';position:absolute;inset:0;background:linear-gradient(to bottom,rgba(16,16,18,.55),rgba(16,16,18,.1) 40%,rgba(16,16,18,.35) 75%,#101012)}
.sh-card{position:absolute;top:50%;width:208px;z-index:-1;perspective:1000px;transition:transform .2s linear}
.sh-card.l{left:0}.sh-card.r{right:0}
.sh-card .in{filter:blur(1.1px) brightness(.5) drop-shadow(rgba(0,0,0,.5) 0 25px 50px);transition:filter .5s ease-out}
.sh-card:hover .in{filter:none}
.scv{position:relative;overflow:hidden;border-radius:12px;aspect-ratio:208/311;background:#1b1b1f;transition:transform .3s}
.scv:hover{transform:scale(1.02)}
.scv img{width:100%;height:100%;object-fit:cover;display:block}
.scv::after{content:'';position:absolute;left:0;right:0;bottom:0;height:96px;background:linear-gradient(to top,rgba(16,16,18,.85),rgba(16,16,18,.6) 40%,transparent)}
.scv .pl{position:absolute;inset:0;margin:auto;width:64px;height:64px;border-radius:50%;border:1px solid rgba(255,255,255,.2);background:rgba(16,16,18,.45);backdrop-filter:blur(12px);display:grid;place-items:center}
.scv .mt{position:absolute;left:14px;right:14px;bottom:14px;z-index:1}
.scv .mt b{display:block;font:500 14px/16px var(--sff);color:#fff;text-shadow:0 1px 8px rgba(0,0,0,.6)}
.scv .mt span{display:block;font:500 11px/14px var(--sff);color:rgba(255,255,255,.8);margin-top:4px}
.sh h1{font:500 72px/72px var(--sff);letter-spacing:-.96px;text-align:center;max-width:820px;padding:0 20px;min-height:144px;display:flex;align-items:center;justify-content:center;flex-wrap:wrap}
.sh h1 .cur{display:inline-block;width:2px;height:64px;margin-left:10px;background:var(--sf);vertical-align:middle;animation:snBlink 1s steps(1) infinite}
.sh h1 .cur.off{opacity:0;animation:none;transition:opacity .4s}
@keyframes snBlink{50%{opacity:0}}
/* Hero 标题动画（hero-fx.js）：链条 → 粒子飞散 → 凝聚成句；结束后淡入真实文字 */
.sh-t{position:relative;z-index:1;line-height:1.12!important;min-height:168px;cursor:default}
.sh-t .fin{opacity:0;transition:opacity .7s var(--se)}
.sh-t.done .fin{opacity:1}
.sh-t .ln{display:block}
.sh-t em{font-style:normal;background:linear-gradient(90deg,#2F7BFF,#1FD1A5);-webkit-background-clip:text;background-clip:text;color:transparent}
.sh-fx{position:absolute;inset:0;width:100%;height:100%;pointer-events:none;z-index:0}
/* 背景：缓慢流动的蓝绿极光 + 中心暗化衬底，保证文字可读 */
.sh-bg{opacity:.4!important}
.sh-aur{position:absolute;inset:-15%;z-index:-2;filter:blur(90px);opacity:.5;pointer-events:none}
.sh-aur i{position:absolute;border-radius:50%;width:44vw;height:44vw;mix-blend-mode:screen}
.sh-aur i:nth-child(1){background:#2F7BFF;left:6%;top:22%;animation:aur1 19s ease-in-out infinite alternate}
.sh-aur i:nth-child(2){background:#1FD1A5;right:6%;top:8%;animation:aur2 23s ease-in-out infinite alternate}
.sh-aur i:nth-child(3){background:#0E6E8C;left:34%;bottom:2%;animation:aur3 27s ease-in-out infinite alternate}
@keyframes aur1{to{transform:translate(18vw,-8vh) scale(1.2)}}
@keyframes aur2{to{transform:translate(-16vw,12vh) scale(.85)}}
@keyframes aur3{to{transform:translate(10vw,-14vh) scale(1.15)}}
.sh-bgv{position:absolute;inset:0;z-index:-3;overflow:hidden;pointer-events:none;background:#101012 url(../../assets/home/hero-video/poster.jpg) center/cover no-repeat}
.sh-aurora{position:absolute;inset:-20%;z-index:-2;pointer-events:none;background:radial-gradient(40% 50% at 20% 30%,rgba(47,123,255,.35),transparent 70%),radial-gradient(45% 55% at 80% 70%,rgba(31,209,165,.3),transparent 70%),radial-gradient(35% 45% at 60% 20%,rgba(91,227,192,.22),transparent 70%);filter:blur(50px);animation:auroraMove 16s ease-in-out infinite;mix-blend-mode:screen}
@keyframes auroraMove{0%,100%{transform:translate(0,0) rotate(0deg)}33%{transform:translate(3%,-4%) rotate(6deg)}66%{transform:translate(-4%,3%) rotate(-5deg)}}
.sh-tech{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;pointer-events:none;display:block;opacity:0;transition:opacity 1.2s ease}
.sh-tech.on{opacity:1}
.sh-veil{position:absolute;inset:0;z-index:-2;pointer-events:none;background:radial-gradient(48% 34% at 50% 38%,rgba(16,16,18,.82),rgba(16,16,18,0) 75%),linear-gradient(to bottom,#101012 0%,rgba(16,16,18,0) 22%,rgba(16,16,18,0) 80%,#101012)}
@media (max-width:900px){.sh-t{min-height:110px}}
@media (prefers-reduced-motion:reduce){.sh-aur i{animation:none}}
.sh .sub{max-width:560px;margin:8px auto 0;padding:0 20px;text-align:center;font:300 16px/24px var(--sff);color:var(--sf2)}
.sb-wrap{width:100%;max-width:800px;margin:24px auto 0;padding:0 20px}
.sbox{position:relative;border-radius:20px;border:.4px solid var(--sl);background:rgba(255,255,255,.06);backdrop-filter:blur(19px);-webkit-backdrop-filter:blur(19px);
  box-shadow:-5px 0 40px rgba(47,123,255,.05),5px 0 40px rgba(31,209,165,.05);animation:snFlash 3s ease-in-out infinite;transition:border-color .2s}
.sbox:focus-within{border-color:rgba(255,255,255,.22)}
@keyframes snFlash{0%,100%{box-shadow:-5px 0 40px rgba(47,123,255,.05),5px 0 40px rgba(31,209,165,.05)}50%{box-shadow:-10px 0 60px rgba(47,123,255,.16),10px 0 60px rgba(31,209,165,.18)}}
.sbox textarea{display:block;width:calc(100% - 40px);margin:16px 20px 0;min-height:32px;max-height:180px;resize:none;border:0;outline:0;background:transparent;color:#fff;font:400 18px/32px var(--sff)}
.sbox textarea::placeholder{color:rgba(255,255,255,.4)}
.sb-ph{position:absolute;left:20px;right:20px;top:16px;height:32px;line-height:32px;overflow:hidden;white-space:nowrap;color:rgba(255,255,255,.4);font:400 18px/32px var(--sff);pointer-events:none;opacity:0;transition:opacity .2s}
.sb-ph.on{opacity:1}
.sb-ph::after{content:'';display:inline-block;width:1px;height:20px;margin-left:2px;vertical-align:-4px;background:rgba(255,255,255,.5);animation:phCaret 1s steps(1) infinite}
@keyframes phCaret{0%,50%{opacity:1}51%,100%{opacity:0}}
@media (prefers-reduced-motion:reduce){.sb-ph::after{animation:none}}
.sb-row{display:flex;align-items:center;gap:8px;padding:8px 20px 16px}
.sb-i{display:inline-flex;align-items:center;justify-content:center;gap:6px;height:36px;min-width:36px;padding:0 10px;border-radius:999px;border:0;background:rgba(255,255,255,.05);color:rgba(255,255,255,.8);font:400 14px var(--sff);cursor:pointer;transition:background .15s}
.sb-i:hover{background:rgba(255,255,255,.1)}.sb-i:active{background:rgba(255,255,255,.15)}
.sb-i.on{background:rgba(31,209,165,.18);color:#fff}
.sb-sp{flex:1}
.sb-i.dice svg{transition:transform .5s var(--se)}.sb-i.dice:active svg{transform:rotate(180deg)}
@property --snA{syntax:'<angle>';initial-value:0deg;inherits:false}
.shine::before{content:'';position:absolute;inset:0;border-radius:inherit;padding:1px;background:conic-gradient(from var(--snA),transparent 0 62%,rgba(255,255,255,.95) 80%,transparent 92%);
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;animation:snSpin 3.2s linear infinite;pointer-events:none}
@keyframes snSpin{to{--snA:360deg}}
.sb-tags{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin-top:16px}
.sb-tags button{height:32px;padding:0 14px;border-radius:999px;border:1px solid var(--sl);background:transparent;color:var(--sf2);font:400 13px var(--sff);cursor:pointer;transition:.15s}
.sb-tags button:hover{color:#fff;border-color:rgba(255,255,255,.25);background:rgba(255,255,255,.04)}

/* 平台 logo 跑马灯（suno：30s 线性无限） */
.smq{margin-top:56px;width:100%;overflow:hidden;-webkit-mask:linear-gradient(90deg,transparent,#000 15%,#000 85%,transparent);mask:linear-gradient(90deg,transparent,#000 15%,#000 85%,transparent)}
.smq p{text-align:center;font-size:13px;color:var(--sf3);margin-bottom:18px}
.smq-t{display:inline-flex;white-space:nowrap;animation:snMarq 30s linear infinite}
.smq:hover .smq-t{animation-play-state:paused}
.smq-t span{display:inline-flex;align-items:center;gap:10px;margin:0 28px;font-size:14px;color:var(--sf2)}
.smq-t img{width:24px;height:24px;border-radius:6px;filter:grayscale(1);opacity:.75;transition:.3s}
.smq-t span:hover img{filter:none;opacity:1}
@keyframes snMarq{to{transform:translateX(-50%)}}
/* 通用分区：大标题 72/64 + 70% 副文，留白靠间距而非内容 */
.ss{padding:160px 0 0}
.ss:last-of-type{padding-bottom:160px}
.ss-h{max-width:640px;margin:0 auto;text-align:center;padding:0 20px}
#acd-demo .ss-h{max-width:860px}
.ss-h h2{font:500 72px/64px var(--sff);letter-spacing:-.5px;color:var(--sf)}
.ss-h p{margin-top:20px;font:400 18px/26px var(--sff);color:var(--sf2)}
.ss-k{display:inline-block;font:500 13px var(--sff);color:var(--sf3);letter-spacing:.06em;margin-bottom:20px}
.rv{opacity:0;transform:translateY(40px);transition:opacity .9s var(--se),transform .9s var(--se)}
.rv.in{opacity:1;transform:none}
.rv.d1{transition-delay:.08s}.rv.d2{transition-delay:.16s}.rv.d3{transition-delay:.24s}

/* 整屏吸附（参考 musicbuddy.cn）：仅首页生效（body.site.home-snap），其它官网子页保持原有自由滚动，互不影响 */
body.site.home-snap{overflow:hidden;height:100vh}
body.site.home-snap #view{height:100vh;overflow-y:auto;overflow-x:hidden;scroll-snap-type:y mandatory;scroll-behavior:smooth;-webkit-overflow-scrolling:touch}
body.site.home-snap #view>.page{margin-top:0}
body.site.home-snap .sh,body.site.home-snap .ss,body.site.home-snap .send{scroll-snap-align:start;scroll-snap-stop:always;min-height:100vh;height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;box-sizing:border-box;overflow:hidden}
body.site.home-snap .sh{padding:96px 0 56px}
body.site.home-snap .ss{padding:96px 20px 40px}
body.site.home-snap .ss:last-of-type{padding-bottom:40px}
body.site.home-snap .send{padding:40px 20px}
/* 价格板块内容最高（标题+切换+3 张卡+脚注），矮屏下常年超出 100vh：
   整屏居中会让超出的部分上下对半裁掉，标题被顶到可视区上方——所以这块单独放开垂直居中和裁切，
   内容多时允许在本屏内自己滚动，而不是跟着外层吸附一起被裁。 */
body.site.home-snap .ss#pricing{justify-content:flex-start;overflow-y:auto}
@media (max-height:760px){body.site.home-snap .ss-h h2{font-size:48px;line-height:1.1}body.site.home-snap .ss{padding-top:76px}}
@media (max-height:900px){body.site.home-snap .ss#pricing{padding-top:48px}body.site.home-snap .ss#pricing .ss-h h2{font-size:40px;line-height:1.15}body.site.home-snap .ss#pricing .ss-h p{margin-top:12px}body.site.home-snap .ss#pricing .spt{margin-top:20px}body.site.home-snap .ss#pricing .spg{margin-top:32px}}
@media (max-width:860px){.sgr{grid-template-columns:repeat(2,minmax(0,1fr))}}

/* 全链路 4 环：左侧粘性步骤 + 右侧大图，滚动点亮 */
.chain{max-width:1240px;margin:80px auto 0;padding:0 20px;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:80px}
.chain-l{position:sticky;top:120px;align-self:start}
.chain-s{display:block;padding:24px 0 24px 28px;position:relative;border-left:1px solid var(--sl);cursor:pointer}
.chain-s::before{content:'';position:absolute;left:-1px;top:0;bottom:0;width:1px;background:var(--sf);transform:scaleY(0);transform-origin:top;transition:transform .6s var(--se)}
.chain-s.on::before{transform:none}
.chain-s small{font:500 13px var(--sff);color:var(--sf3)}
.chain-s h3{font:500 28px/1.2 var(--sff);margin-top:8px;color:var(--sf3);transition:color .4s}
.chain-s.on h3{color:var(--sf)}
.chain-s p{font-size:15px;line-height:1.6;color:var(--sf2);max-height:0;overflow:hidden;opacity:0;transition:max-height .6s var(--se),opacity .4s,margin .4s}
.chain-s.on p{max-height:120px;opacity:1;margin-top:10px}
.chain-s .who{display:inline-flex;align-items:center;gap:8px;margin-top:12px;font-size:13px;color:var(--sf2)}
.chain-s .who i{width:6px;height:6px;border-radius:50%;background:var(--pk)}
.chain-r{display:flex;flex-direction:column;gap:160px;padding:40px 0 120px}
.chain-p{position:relative;border-radius:20px;overflow:hidden;aspect-ratio:1/1;background:#17171a}
.chain-p img{width:100%;height:100%;object-fit:cover;transition:transform 1.2s var(--se)}
.chain-p.on img{transform:scale(1.03)}
.chain-p .cap{position:absolute;left:20px;right:20px;bottom:20px;padding:16px 18px;border-radius:14px;background:rgba(16,16,18,.55);backdrop-filter:blur(16px);border:1px solid var(--sl);font-size:14px;line-height:1.6;color:var(--sf)}
.chain-p .cap b{display:block;font-weight:500;color:var(--sf3);font-size:12px;margin-bottom:4px}
/* 功能卡网格（suno：376×460，3 列，间距 32/48） */
.sgrid{max-width:1240px;margin:80px auto 0;padding:0 20px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:48px 32px}
.sgc{display:block}
.sgc .ph{border-radius:16px;overflow:hidden;aspect-ratio:376/300;background:#17171a}
.sgc .ph img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--se)}
.sgc:hover .ph img{transform:scale(1.04)}
.sgc h3{font:500 20px/24px var(--sff);margin-top:20px}
.sgc p{font-size:15px;line-height:1.6;color:var(--sf2);margin-top:8px}
.sgc .go{display:inline-block;margin-top:12px;font-size:14px;color:var(--sf);opacity:.6;transition:opacity .2s,transform .2s}
.sgc:hover .go{opacity:1;transform:translateX(4px)}

/* 定价 */
.spt{display:inline-flex;margin:32px auto 0;padding:4px;border-radius:999px;background:rgba(255,255,255,.06)}
.spt button{height:36px;padding:0 18px;border:0;border-radius:999px;background:transparent;color:var(--sf2);font:500 14px var(--sff);cursor:pointer;transition:.2s}
.spt button.on{background:var(--sf);color:#101012}
.spt em{font-style:normal;font-size:11px;color:var(--pk);margin-left:6px}
.spg{max-width:1240px;margin:56px auto 0;padding:0 20px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.spc{position:relative;border-radius:24px;padding:36px 32px;background:rgba(255,255,255,.04);border:1px solid var(--sl);display:flex;flex-direction:column;will-change:transform}
.spc.in:hover,.acd-panel.in:hover{transition:transform .2s var(--se),border-color .25s}
.spc::after{content:'';position:absolute;inset:0;border-radius:24px;padding:1px;pointer-events:none;background:radial-gradient(240px 200px at var(--mx,50%) var(--my,50%),rgba(31,209,165,.55),rgba(47,123,255,.2) 42%,transparent 70%);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;opacity:0;transition:opacity .25s}
.spc:hover::after{opacity:1}.spc:hover{border-color:transparent}
.spc.hot{background:rgba(255,255,255,.06);border-color:rgba(31,209,165,.45)}
.spc .tg{position:absolute;top:20px;right:20px;font-size:12px;padding:4px 10px;border-radius:999px;background:rgba(31,209,165,.16);color:#7EF0D2}
.spc h3{font:500 22px var(--sff)}
.spc .for{font-size:14px;color:var(--sf2);margin-top:6px}
.spc .pr{margin-top:28px;font:500 48px/1 var(--sff);letter-spacing:-1px}
.spc .pr small{font-size:15px;font-weight:400;color:var(--sf2);letter-spacing:0;margin-left:4px}
.spc ul{list-style:none;margin:28px 0 32px;display:grid;gap:12px;font-size:14px;color:var(--sf2)}
.spc li{display:flex;gap:10px}.spc li::before{content:'✓';color:var(--sf)}
.spc .b{margin-top:auto;height:56px;border-radius:999px;border:0;font:500 16px var(--sff);cursor:pointer;background:rgba(255,255,255,.08);color:var(--sf);transition:background .2s}
.spc .b:hover{background:rgba(255,255,255,.14)}
.spc.hot .b{background:var(--aura);background-size:180% 180%;animation:snAura 9s ease-in-out infinite;color:#fff}
.spn{text-align:center;margin-top:24px;font-size:13px;color:var(--sf3)}

/* FAQ */
.sfq{max-width:760px;margin:56px auto 0;padding:0 20px}
.sfq details{border-bottom:1px solid var(--sl)}
.sfq summary{list-style:none;display:flex;justify-content:space-between;align-items:center;gap:20px;min-height:80px;cursor:pointer;font-size:16px}
.sfq summary::-webkit-details-marker{display:none}
.sfq summary i{font-style:normal;font-size:22px;color:var(--sf2);transition:transform .3s var(--se)}
.sfq details[open] summary i{transform:rotate(45deg)}
.sfq details p{padding:0 40px 24px 0;font-size:15px;line-height:1.7;color:var(--sf2);animation:snUp .4s var(--se)}
@keyframes snUp{from{opacity:0;transform:translateY(.75rem)}to{opacity:1;transform:none}}

/* 收尾 CTA */
.send{padding:160px 20px;text-align:center}
.send h2{font:500 72px/64px var(--sff);letter-spacing:-.5px}
.send p{margin:20px auto 40px;max-width:520px;color:var(--sf2);font-size:18px}

/* 页脚 */
body.site .foot{border-top:1px solid var(--sl);background:#101012;padding:64px 0 40px;color:var(--sf2)}
.sf-g{display:grid;grid-template-columns:1.4fr repeat(3,minmax(0,1fr));gap:40px}
.sf-g h4{font:500 13px var(--sff);color:var(--sf);margin-bottom:16px}
.sf-g a{display:block;font-size:13px;line-height:24px;color:var(--sf2);transition:color .15s}
.sf-g a:hover{color:var(--sf)}
.sf-g .bl{font-size:13px;line-height:1.7;max-width:280px;margin-top:14px}
.sf-b{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-top:56px;font-size:12px;color:var(--sf3)}

/* 吊胃口 → 登录弹窗（suno：scale .95 → 1 + fade） */
body.site #modal-root .scrim{background:rgba(16,16,18,.6);backdrop-filter:blur(8px)}
body.site .modal{background:#18181b;border:1px solid var(--sl);border-radius:24px;padding:36px;transform:scale(.95);transition:opacity .25s var(--se),transform .25s var(--se);color:var(--sf)}
body.site #modal-root.open .modal{transform:none}
body.site .modal .x{color:var(--sf2)}
.tz h3{font:500 26px/1.25 var(--sff);margin-top:6px}
.tz .k{font-size:13px;color:var(--sf3)}
.tz-q{margin-top:20px;padding:16px 18px;border-radius:14px;background:rgba(255,255,255,.05);font-size:15px;line-height:1.6;color:var(--sf2)}
.tz-q b{color:var(--sf);font-weight:500}
.tz-steps{margin-top:18px;display:grid;gap:10px}
.tz-steps div{display:flex;align-items:center;gap:12px;font-size:14px;color:var(--sf2);opacity:0;transform:translateY(8px);animation:snUp .45s var(--se) forwards}
.tz-steps div i{width:22px;height:22px;border-radius:50%;border:1px solid var(--sl);display:grid;place-items:center;font-style:normal;font-size:11px;color:var(--sf)}
.tz-steps div.lk{filter:blur(3px)}
.tz-dots{display:inline-flex;gap:4px;margin-left:6px}.tz-dots i{width:5px;height:5px;border-radius:50%;background:var(--sf2);animation:snDot 1s infinite}
.tz-dots i:nth-child(2){animation-delay:.15s}.tz-dots i:nth-child(3){animation-delay:.3s}
@keyframes snDot{0%,100%{opacity:.25}50%{opacity:1}}
.tz .sn-aura{width:100%;height:52px;margin-top:24px}
.tz .ft{text-align:center;margin-top:12px;font-size:12px;color:var(--sf3)}
body.site .auth{max-width:420px;margin:0 auto;padding:40px 36px;border-radius:24px;background:#18181b;border:1px solid var(--sl)}
body.site .auth .input{background:rgba(255,255,255,.05);border:1px solid var(--sl);border-radius:12px;color:var(--sf)}
body.site .auth .btn{border-radius:999px}
body.site .auth .btn-ink{background:var(--aura);border:0;color:#fff}
/* 介绍子页：短 hero + 交替图文 */
.sp-h{padding:200px 20px 40px;text-align:center}
.sp-h h1{font:500 72px/64px var(--sff);letter-spacing:-.96px;max-width:860px;margin:0 auto}
.sp-h p{max-width:600px;margin:24px auto 0;font-size:18px;line-height:26px;color:var(--sf2)}
.sp-h .row{display:flex;justify-content:center;gap:12px;margin-top:40px}
.sgh{display:inline-flex;align-items:center;height:56px;padding:0 32px;border-radius:999px;border:1px solid var(--sl);font-size:16px;transition:background .2s}
.sgh:hover{background:var(--sg2)}
.sfx{max-width:1240px;margin:0 auto;padding:160px 20px 0;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:80px;align-items:center}
.sfx.rev .sfx-t{order:2}
.sfx-t small{font:500 13px var(--sff);color:var(--sf3)}
.sfx-t h2{font:500 48px/52px var(--sff);letter-spacing:-.5px;margin-top:12px}
.sfx-t p{font-size:17px;line-height:1.7;color:var(--sf2);margin-top:20px;max-width:460px}
.sfx-t ul{list-style:none;margin-top:24px;display:grid;gap:10px;font-size:15px;color:var(--sf2)}
.sfx-t li::before{content:'—';margin-right:10px;color:var(--sf3)}
.sfx-m{border-radius:20px;overflow:hidden;aspect-ratio:5/4;background:#17171a}
.sfx-m img{width:100%;height:100%;object-fit:cover}
.sfx-m.chat{display:flex;flex-direction:column;justify-content:flex-end;gap:12px;padding:28px;background:radial-gradient(80% 60% at 70% 100%,rgba(31,209,165,.22),transparent),#141417;border:1px solid var(--sl)}
.bq{max-width:78%;padding:12px 16px;border-radius:16px;font-size:14px;line-height:1.6;background:rgba(255,255,255,.06);color:var(--sf)}
.bq.me{align-self:flex-end;background:var(--sf);color:#101012}
.bq small{display:block;font-size:11px;color:var(--sf3);margin-bottom:4px}
.bq .ch{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}.bq .ch span{padding:4px 10px;border-radius:999px;border:1px solid var(--sl);font-size:12px;color:var(--sf2)}
.lgw{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.lgw img{width:40px;height:40px;border-radius:10px}
.sdoc{max-width:760px;margin:0 auto;padding:40px 20px 160px;font-size:16px;line-height:1.85;color:var(--sf2)}
.sdoc h3{font:500 22px var(--sff);color:var(--sf);margin:48px 0 12px}

@media (max-width:1100px){.sh-card{display:none}.sn-mi{grid-template-columns:1fr}.sn-mfeat{display:none}}
@media (max-width:900px){
  .sn-nav,.sn-r .sn-login,.sn-r .sn-lang{display:none}.sn-burger{display:inline-flex!important}
  .sh h1,.ss-h h2,.send h2,.sp-h h1{font-size:44px;line-height:44px}
  .sh h1{min-height:132px}.sh h1 .cur{height:40px}
  .ss{padding-top:112px}.chain,.sfx{grid-template-columns:1fr;gap:40px}.sfx.rev .sfx-t{order:0}.sfx{padding-top:112px}
  .chain-l{position:static}.chain-s p{max-height:none;opacity:1;margin-top:10px}.chain-s h3{color:var(--sf)}
  .chain-r{gap:32px;padding:0}.sgrid,.spg{grid-template-columns:1fr}.sf-g{grid-template-columns:1fr 1fr}
  .sfx-t h2{font-size:34px;line-height:40px}.sb-i .lb{display:none}
}
@media (prefers-reduced-motion:reduce){.sbox,.smq-t,.eq i,.sn-aura,.shine::before,.sh-aurora{animation:none}.rv{opacity:1;transform:none}}

/* —— 首页 Hero · 居中版式：满屏品牌色视频（hero-bg.js）+ 依次淡入入场（见 .an） —— */
.sh.sh-c{align-items:center;justify-content:center;text-align:center;padding:96px 20px 64px}
.sh-c .sh-veil{background:radial-gradient(52% 40% at 50% 54%,rgba(16,16,18,.55),rgba(16,16,18,0) 72%),linear-gradient(to bottom,rgba(16,16,18,.35) 0%,rgba(16,16,18,0) 20%,rgba(16,16,18,0) 70%,#101012 100%)}
.sh-in{width:100%;max-width:900px;margin:0 auto;display:flex;flex-direction:column;align-items:center}
.sh-eb{display:inline-flex;align-items:center;gap:10px;height:32px;padding:0 14px;margin-bottom:clamp(18px,2.6vh,28px);border-radius:999px;border:1px solid rgba(255,255,255,.18);background:rgba(16,16,18,.35);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  font:500 12px/1 'Roboto Mono',monospace;letter-spacing:.2em;color:var(--sf2)}
.sh-eb i{width:6px;height:6px;border-radius:50%;background:var(--pk);box-shadow:0 0 10px var(--pk)}
.sh-c h1.sh-t{display:block;max-width:none;min-height:0;padding:0;text-align:center;cursor:default;white-space:nowrap;
  font:800 clamp(44px,7vw,92px)/1.06 Geist,'TK Sans SC',var(--sff);letter-spacing:-.04em}
.sh-c .sh-t .ln{display:block}
.sh-c .sub{margin:clamp(16px,2.4vh,24px) 0 0;padding:0;max-width:min(560px,92%);text-align:center;font:300 clamp(15px,1.4vw,17px)/1.6 var(--sff);color:var(--sf2)}
.sh-c h1.sh-t{line-height:1.06!important}
.sh-c .sb-wrap{max-width:720px;margin:clamp(24px,3.6vh,36px) 0 0;padding:0}
.sh-c .sbox{text-align:left;background:rgba(16,16,18,.42);animation:none;box-shadow:none;transition:border-color .2s,box-shadow .3s}
.sh-c .sbox:focus-within{border-color:rgba(255,255,255,.22);box-shadow:0 0 0 1px rgba(31,209,165,.15),0 0 40px rgba(31,209,165,.12)}
.sh-c .sb-tags button{background:rgba(16,16,18,.3)}
.sh-c #gen{box-shadow:0 0 0 1px rgba(255,255,255,.12),0 0 22px rgba(31,209,165,.32),0 0 44px rgba(47,123,255,.16)}
.sh-c #gen:hover{transform:translateY(-2px) scale(1.02);box-shadow:0 0 0 1px rgba(255,255,255,.2),0 0 28px rgba(31,209,165,.48),0 0 60px rgba(47,123,255,.26)}
.sh-c .sb-tags{justify-content:center}
.sh-c .smq{margin-top:64px}
/* 依次淡入：字体就位后 mount() 给 section 加 .go，再按 --d 延迟触发 */
.an{opacity:0;transform:translateY(12px);transition:opacity .7s cubic-bezier(.16,1,.3,1),transform .7s cubic-bezier(.16,1,.3,1);transition-delay:var(--d,0s)}
.sh-c.go .an{opacity:1;transform:none}
html[lang=en] .sh-c h1.sh-t{font-size:clamp(36px,6vw,72px);letter-spacing:-.035em}
@media (max-width:900px){
  .sh.sh-c{padding:88px 16px 48px}
  .sh-c .sh-veil{background:linear-gradient(to bottom,rgba(16,16,18,.2) 0%,rgba(16,16,18,.82) 34%,rgba(16,16,18,.94) 60%,#101012)}
  .sh-c h1.sh-t{font-size:38px;line-height:1.1;white-space:normal}
  .sh-eb{margin-bottom:18px}
}
@media (prefers-reduced-motion:reduce){.an{opacity:1;transform:none}}

/* 成为 OPC（#/opc） */
.opc .sp-h .opc-k,.opc-hd small{display:block;font:500 12px/1 'Roboto Mono',monospace;letter-spacing:.16em;text-transform:uppercase;color:var(--pk);margin-bottom:20px}
.opc .sp-h .row{align-items:center}
.opc-g{display:inline-flex;align-items:center;height:40px;padding:0 4px;color:var(--sf);font:500 15px var(--sff);border-bottom:1px solid var(--sf3);transition:border-color .2s}
.opc-g.lg{height:56px;padding:0 28px;border:1px solid var(--sl);border-radius:999px;font-size:17px}
.opc-g:hover{border-color:var(--sf)}
.opc-w{max-width:1240px;margin:0 auto;padding:140px 20px 0}
.opc-hd h2{font:500 48px/54px var(--sff);letter-spacing:-.5px}
.opc-hd p{margin-top:20px;max-width:440px;font-size:17px;line-height:1.7;color:var(--sf2)}
.opc-g4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;margin-top:56px}
.opc-c{padding:28px 24px 32px;border:1px solid var(--sl);border-radius:20px;background:#141417}
.opc-c:first-child{background:linear-gradient(150deg,rgba(47,123,255,.28),rgba(31,209,165,.16) 70%),#141417;border-color:transparent}
.opc-c small{font:500 13px var(--sff);color:var(--sf3)}
.opc-c h3{font:500 22px/28px var(--sff);margin-top:14px}
.opc-c p{margin-top:14px;font-size:15px;line-height:1.7;color:var(--sf2)}
.opc-tip{margin-top:24px;padding:18px 22px;border-left:2px solid var(--pk);background:var(--pink-s);border-radius:0 12px 12px 0;font-size:15px;line-height:1.7;color:var(--sf2)}
.opc-tl{list-style:none;margin-top:56px;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;border-top:1px solid var(--sl)}
.opc-s{display:flex;gap:18px;padding:32px 28px 36px 0;border-bottom:1px solid var(--sl)}
.opc-s b{font:400 40px/1 Anton,'Roboto Mono',monospace;color:transparent;-webkit-text-stroke:1px var(--sf3);flex:none;width:52px}
.opc-s:nth-child(5) b{color:var(--pk);-webkit-text-stroke:0}
.opc-s h3{font:500 20px/26px var(--sff);display:flex;flex-wrap:wrap;align-items:baseline;gap:10px}
.opc-s h3 span{font:500 12px 'Roboto Mono',monospace;color:var(--pk);letter-spacing:.04em}
.opc-s p{margin-top:10px;font-size:15px;line-height:1.7;color:var(--sf2)}
.opc-2{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.4fr);gap:16px;margin-top:56px}
.opc-p{padding:36px;border:1px solid var(--sl);border-radius:20px;background:#141417}
.opc-p.hi{background:linear-gradient(135deg,#2F7BFF,#1FD1A5);border:0;color:#08131F}
.opc-p h3{font:500 22px var(--sff)}
.opc-p ul{list-style:none;margin-top:22px;display:grid;gap:12px;font-size:16px;color:var(--sf2)}
.opc-p li::before{content:'—';margin-right:10px;color:var(--sf3)}
.opc-p.hi ul{grid-template-columns:1fr 1fr;color:#08131F}.opc-p.hi li::before{color:rgba(8,19,31,.5)}
.opc-p.hi p{margin-top:26px;padding-top:20px;border-top:1px solid rgba(8,19,31,.18);font-size:15px;line-height:1.6;color:#08131F}
.opc-fw{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1fr);gap:80px;align-items:start}
.opc-f{display:grid;gap:22px;padding:36px;border:1px solid var(--sl);border-radius:20px;background:#141417}
.opc-r2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.opc-l{display:grid;gap:10px;font-size:14px;color:var(--sf2);border:0;padding:0;margin:0;min-width:0}
.opc-l legend{padding:0;margin-bottom:10px}
.opc-l input,.opc-l select{height:48px;padding:0 14px;border-radius:12px;border:1px solid var(--sl);background:rgba(255,255,255,.04);color:var(--sf);font:400 16px var(--sff);width:100%}
.opc-l select option{background:#141417}
.opc-l input:focus,.opc-l select:focus,.opc-o input:focus-visible+span{outline:2px solid var(--pk);outline-offset:1px}
.opc-os{display:flex;flex-wrap:wrap;gap:8px}
.opc-o{position:relative;cursor:pointer}
.opc-o input{position:absolute;opacity:0;width:1px;height:1px}
.opc-o span{display:inline-flex;align-items:center;height:38px;padding:0 16px;border:1px solid var(--sl);border-radius:999px;font-size:14px;color:var(--sf2);transition:background .15s,color .15s,border-color .15s}
.opc-o:hover span{border-color:var(--sf3)}
.opc-o input:checked+span{background:var(--sf);color:#101012;border-color:var(--sf)}
.opc-err{min-height:1px;color:#FF8A8A;font-size:14px}.opc-err:empty{display:none}
.opc-fa{display:flex;flex-wrap:wrap;align-items:center;gap:20px}
.opc-n{font-size:12px;line-height:1.6;color:var(--sf3)}
.opc-ok{display:grid;gap:16px;justify-items:start;outline:0}
.opc-ok h3{font:500 28px var(--sff)}.opc-ok p{font-size:16px;line-height:1.7;color:var(--sf2)}
.opc .sfq{margin-top:140px}
.opc-fqh{font:500 32px var(--sff);margin-bottom:16px}
.opc-dis{max-width:760px;margin:48px auto 0;padding:0 20px 160px;font-size:12px;line-height:1.7;color:var(--sf3)}
@media (max-width:1100px){.opc-g4{grid-template-columns:1fr 1fr}.opc-tl{grid-template-columns:1fr 1fr}}
@media (max-width:900px){
  .opc-w{padding-top:96px}.opc-hd h2{font-size:34px;line-height:40px}
  .opc-g4,.opc-tl,.opc-2,.opc-fw,.opc-r2,.opc-p.hi ul{grid-template-columns:1fr}
  .opc-fw{gap:32px}.opc-f,.opc-p{padding:24px}.opc-s{padding-right:0}
  .opc .sp-h .row{flex-direction:column;align-items:stretch}.opc .sfq{margin-top:96px}
}

/* ===== 首页「四个 AI 员工接力」对话演示板块（acd = agent chat demo）===== */
.acd-wrap{max-width:1240px;width:100%;margin:0 auto;padding:0 20px;max-height:100%;overflow:hidden}
.acd-grid{display:grid;grid-template-columns:minmax(0,.86fr) minmax(0,1.14fr);gap:64px;margin-top:40px;align-items:start}
.acd-steps{display:grid}
.acd-s{display:block;padding:22px 0 22px 26px;position:relative;border-left:1px solid var(--sl);cursor:pointer}
.acd-s::before{content:'';position:absolute;left:-1px;top:0;bottom:0;width:1px;background:var(--pk);transform:scaleY(0);transform-origin:top;transition:transform .5s var(--se)}
.acd-s.on::before{transform:none}
.acd-s small{font:500 12px 'Roboto Mono',monospace;letter-spacing:.1em;color:var(--sf3)}
.acd-s h3{font:500 22px/1.25 var(--sff);margin-top:8px;color:var(--sf3);transition:color .4s}
.acd-s.on h3{color:var(--sf)}
.acd-s p{font-size:14.5px;line-height:1.65;color:var(--sf2);max-height:0;overflow:hidden;opacity:0;transition:max-height .5s var(--se),opacity .35s,margin .35s}
.acd-s.on p{max-height:100px;opacity:1;margin-top:8px}
.acd-s .who{display:inline-flex;align-items:center;gap:8px;margin-top:10px;font-size:13px;color:var(--sf2);opacity:0;transition:opacity .35s}
.acd-s.on .who{opacity:1}
.acd-s .who i{width:6px;height:6px;border-radius:50%;background:var(--c,var(--pk))}
.acd-panel{position:relative;border-radius:20px;overflow:hidden;background:#141417;border:1px solid var(--sl);display:flex;flex-direction:column;will-change:transform}
.acd-panel::after{content:'';position:absolute;inset:0;border-radius:20px;padding:1px;pointer-events:none;z-index:2;background:radial-gradient(260px 220px at var(--mx,50%) var(--my,50%),rgba(31,209,165,.5),rgba(47,123,255,.2) 42%,transparent 70%);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;opacity:0;transition:opacity .25s}
.acd-panel:hover::after{opacity:1}.acd-panel:hover{border-color:transparent}
.acd-ph{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:16px 20px;border-bottom:1px solid var(--sl);flex:none}
.acd-ph .l{display:flex;align-items:center;gap:10px;min-width:0}
.acd-ph .ic{width:32px;height:32px;border-radius:9px;flex:none;display:grid;place-items:center;background:var(--pink-s);color:var(--pk);font:600 13px var(--sff)}
.acd-ph b{display:block;font:500 14px var(--sff);color:var(--sf)}
.acd-ph span{display:block;font-size:12px;color:var(--sf3);margin-top:1px}
.acd-crew{display:flex}
.acd-crew i{width:26px;height:26px;border-radius:50%;margin-left:-7px;display:grid;place-items:center;font:600 11px var(--sff);font-style:normal;
  color:#08131F;background:var(--c);border:2px solid #141417;opacity:.32;filter:saturate(.5);transition:.4s var(--se)}
.acd-crew i.on{opacity:1;filter:none;transform:translateY(-2px)}
.acd-crew i.done{opacity:.8;filter:none}
/* 固定高度 + 内部滚动：对话框大小不随内容变化，避免页面跳动 */
.acd-body{height:430px;overflow-y:auto;display:flex;flex-direction:column;gap:14px;padding:26px 24px;
  background:radial-gradient(80% 50% at 75% 100%,var(--pink-s),transparent);scroll-behavior:smooth}
.acd-body::-webkit-scrollbar{width:6px}
.acd-body::-webkit-scrollbar-thumb{background:var(--sl);border-radius:999px}
.acd-row{display:flex;align-items:flex-start;gap:10px;opacity:0;transform:translateY(8px);transition:opacity .38s var(--se),transform .38s var(--se)}
.acd-row.show{opacity:1;transform:none}
.acd-row.me{justify-content:flex-end}
.acd-av{flex:none;width:32px;height:32px;border-radius:50%;display:grid;place-items:center;margin-top:2px;
  background:color-mix(in srgb,var(--c,var(--pk)) 20%,#141417);border:1px solid color-mix(in srgb,var(--c,var(--pk)) 45%,transparent)}
.acd-av svg{width:17px;height:17px;display:block}
.acd-col{display:flex;flex-direction:column;gap:6px;min-width:0}
.acd-col .nm{font:600 11px var(--sff);letter-spacing:.02em;color:var(--c,var(--pk));padding-left:2px}
.bq .opts{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.bq .opts span{padding:5px 12px;border-radius:999px;border:1px solid var(--sl);font-size:12.5px;color:var(--sf2)}
.bq .opts span.pick{background:var(--c,var(--pk));border-color:transparent;color:#08131F;font-weight:500}
.bq.card{max-width:88%}
.bq.card .tt{font:600 11px var(--sff);letter-spacing:.04em;color:var(--c,var(--pk));margin-bottom:10px;text-transform:uppercase}
.bq.card ul{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:8px 18px}
.bq.card li{font-size:12.5px;color:var(--sf2);display:flex;flex-direction:column;gap:2px}
.bq.card li span:first-child{font-size:10.5px;color:var(--sf3)}
.bq.card li b{color:var(--sf);font-weight:500;font-size:13px}
.bq.card .quote{font-size:14.5px;line-height:1.7;font-style:italic;color:var(--sf)}
.bq.result{display:flex;align-items:center;gap:12px}
.bq.result .cv{width:36px;height:36px;border-radius:9px;background:var(--c,var(--pk));flex:none;position:relative}
.bq.result .cv::after{content:'✓';position:absolute;inset:0;display:grid;place-items:center;color:#08131F;font-weight:700;font-size:14px}
.bq.result b{display:block;font-size:13.5px;font-weight:500;color:var(--sf)}
.bq.result span{display:block;font-size:11.5px;color:var(--sf3);margin-top:1px}
@media (max-width:900px){.acd-grid{grid-template-columns:1fr;gap:32px}.acd-steps{display:none}.acd-body{height:380px}}

/* ===== 快速成为 OPC（evb，原「活动与商务」）：玻璃拟态——蓝绿渐变大色块 + 双光斑景深，左 4 章节自动轮播 + 右毛玻璃工作台随屏切换 ===== */
.og-ss{--ex:cubic-bezier(.16,1,.3,1);--pk2:#5BE3C0;--am2:#7FB0FF;background:linear-gradient(135deg,#1A56B8 0%,#156E9E 50%,#0E8A72 100%);position:relative;isolation:isolate}
.og-ss::before,.og-ss::after{content:'';position:absolute;border-radius:50%;filter:blur(60px);z-index:0;pointer-events:none}
.og-ss::before{width:460px;height:460px;top:-120px;left:-120px;background:radial-gradient(circle,rgba(255,255,255,.35),transparent 70%)}
.og-ss::after{width:520px;height:520px;bottom:-160px;right:-140px;background:radial-gradient(circle,rgba(14,138,114,.55),transparent 70%)}
.og-ss .ss-h{margin:0;text-align:left;max-width:none}
.og-ss .ss-h h2{color:#fff;font-size:56px;line-height:1.05}
.og-ss .ss-h p{color:rgba(255,255,255,.82)}
.og-wrap{position:relative;z-index:1;width:100%;max-width:1180px;margin:0 auto;padding:0 20px;display:grid;grid-template-columns:.9fr 1.1fr;gap:64px;align-items:center}
.og-chap{margin-top:28px;list-style:none;display:grid;gap:10px;padding:0}
.og-chap li button{width:100%;text-align:left;border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.08);backdrop-filter:blur(16px) saturate(140%);-webkit-backdrop-filter:blur(16px) saturate(140%);cursor:pointer;padding:14px 18px;border-radius:16px;display:grid;grid-template-columns:1fr auto;gap:2px 16px;transition:background .25s,border-color .25s,box-shadow .25s}
.og-chap li button:hover{background:rgba(255,255,255,.14)}
.og-chap b{font:600 18px var(--sff);color:rgba(255,255,255,.7);transition:color .3s}
.og-chap span{grid-column:1/-1;font-size:14px;color:rgba(255,255,255,.8);max-height:0;overflow:hidden;opacity:0;transition:max-height .45s var(--se),opacity .35s}
.og-chap em{grid-row:1;grid-column:2;font-style:normal;font-size:13px;color:rgba(255,255,255,.65);font-variant-numeric:tabular-nums;align-self:center}
.og-chap .bar{grid-column:1/-1;height:3px;border-radius:2px;background:rgba(255,255,255,.2);overflow:hidden;margin-top:8px}
.og-chap .bar i{display:block;height:100%;width:100%;background:#fff;transform:scaleX(0);transform-origin:left}
.og-chap li.on button{background:rgba(255,255,255,.22);border-color:rgba(255,255,255,.4);box-shadow:0 12px 36px -12px rgba(0,0,0,.35),inset 0 1px 0 rgba(255,255,255,.3)}
.og-chap li.on b,.og-chap li.on em{color:#fff}
.og-chap li.on span{max-height:40px;opacity:1}
.og-chap li.on .bar i{animation:ogFill 4.5s linear forwards}
.og-chap li.done .bar i{transform:none}
.og-ss.paused .og-chap li.on .bar i{animation-play-state:paused}
@keyframes ogFill{to{transform:none}}
.og-cta,body.site a.og-cta{position:relative;margin-top:28px;display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:999px;border:0;background:rgba(255,255,255,.92);color:#0F4C81;font:500 16px var(--sff);cursor:pointer;white-space:nowrap;text-decoration:none;backdrop-filter:blur(10px);transition:transform .2s var(--se),filter .2s}
.og-cta:hover,body.site a.og-cta:hover{filter:none;background:#fff;transform:translateY(-2px)}.og-cta:active{transform:scale(.97)}
.og-cta svg{width:16px;height:16px;transition:transform .25s var(--se)}.og-cta:hover svg{transform:translateX(3px)}
/* 右：工作台毛玻璃面板 */
.og-app{position:relative;z-index:1;border-radius:24px;background:rgba(255,255,255,.1);backdrop-filter:blur(24px) saturate(160%);-webkit-backdrop-filter:blur(24px) saturate(160%);border:1px solid rgba(255,255,255,.28);padding:18px;min-height:460px;display:flex;flex-direction:column;box-shadow:0 30px 80px -20px rgba(4,24,52,.55),inset 0 1px 0 rgba(255,255,255,.35)}
.og-tb{display:flex;align-items:center;gap:10px;padding:4px 6px 16px}
.og-tb i{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.3)}
.og-tb b{margin-left:8px;font:500 13px var(--sff);color:rgba(255,255,255,.75)}
.og-scr{position:relative;flex:1;border-radius:16px;background:rgba(10,14,20,.28);border:1px solid rgba(255,255,255,.14);overflow:hidden}
.og-pane{position:absolute;inset:0;padding:26px;display:flex;flex-direction:column;gap:14px;opacity:0;transform:translateY(24px) scale(.98);pointer-events:none;transition:opacity .35s var(--se),transform .35s var(--se)}
.og-pane.on{opacity:1;transform:none;pointer-events:auto;transition:opacity .6s var(--se) .12s,transform .7s var(--ex) .12s}
.og-h5{font:600 20px var(--sff);color:#fff}
.og-meta{font-size:14px;color:rgba(255,255,255,.65)}
.og-it{opacity:0;transform:translateY(14px);transition:opacity .5s var(--se),transform .6s var(--ex);transition-delay:calc(.25s + var(--i,0)*90ms)}
.og-pane.on .og-it{opacity:1;transform:none}
.og-ic{display:inline-grid;place-items:center;flex:none;width:28px;height:28px;border-radius:8px;color:rgba(255,255,255,.8);background:rgba(255,255,255,.12);overflow:hidden}
.og-ic svg{width:60%;height:60%;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}
.og-ic img{width:100%;height:100%;object-fit:cover}
/* 1 对话 */
.og-msg{max-width:82%;padding:12px 16px;border-radius:18px;font-size:15px;line-height:1.5}
.og-msg.me{align-self:flex-end;background:rgba(255,255,255,.85);color:#0F2A4A;border-bottom-right-radius:6px}
.og-msg.ai{background:rgba(255,255,255,.14);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.18);color:#fff;border-bottom-left-radius:6px}
.og-msg.ai small{display:block;margin-top:6px;color:rgba(255,255,255,.6);font-size:12px}
.og-typing{display:inline-flex;gap:4px;padding:14px 16px;border-radius:18px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.18);width:max-content}
.og-typing i{width:6px;height:6px;border-radius:50%;background:rgba(255,255,255,.6);animation:ogDot 1s ease-in-out infinite}
.og-typing i:nth-child(2){animation-delay:.15s}.og-typing i:nth-child(3){animation-delay:.3s}
@keyframes ogDot{50%{transform:translateY(-4px);background:#fff}}
/* 2 证照 */
.og-docs{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:6px}
.og-doc{border-radius:14px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);backdrop-filter:blur(10px);padding:16px;display:flex;flex-direction:column;gap:10px}
.og-doc .og-ic{width:32px;height:32px;border-radius:9px;background:rgba(255,255,255,.18)}
.og-doc .og-ic svg{width:60%;height:60%}
.og-doc b{font-size:15px;color:#fff}.og-doc span{font-size:12px;color:var(--pk2)}
.og-prog{height:8px;border-radius:4px;background:rgba(255,255,255,.14);overflow:hidden;margin-top:auto}
.og-prog i{display:block;height:100%;background:linear-gradient(90deg,var(--pk),var(--am));width:0;transition:width 1.6s var(--ex) .5s}
.og-pane.on .og-prog i{width:100%}
/* 3 对账 */
.og-tx{display:grid;grid-template-columns:28px 1fr auto auto;gap:12px;align-items:center;padding:12px 14px;border-radius:12px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);backdrop-filter:blur(8px);font-size:14px;color:#fff}
.og-tx b{font-variant-numeric:tabular-nums;font-weight:600;color:#fff}
.og-tx b.in{color:var(--pk2)}
.og-tx s{text-decoration:none;font-size:12px;padding:3px 8px;border-radius:999px;background:rgba(255,255,255,.16);color:#fff}
/* 4 收入 */
.og-earn{display:flex;align-items:center;gap:14px}
.og-earn .og-ic{width:48px;height:48px;border-radius:14px;background:rgba(255,255,255,.18)}
.og-earn .og-ic svg{width:55%;height:55%}
.og-earn>span:last-child{align-self:flex-end;padding-bottom:6px}
.og-earn b{font:700 56px/1 var(--sff);letter-spacing:-.03em;font-variant-numeric:tabular-nums;color:#fff}
.og-earn span{font-size:14px;color:rgba(255,255,255,.65)}
.og-src{display:grid;gap:10px;margin-top:4px}
.og-src>div{display:grid;grid-template-columns:96px 1fr auto;gap:12px;align-items:center;font-size:14px;color:rgba(255,255,255,.8)}
.og-src u{height:10px;border-radius:5px;background:rgba(255,255,255,.14);overflow:hidden;text-decoration:none;display:block}
.og-src u i{display:block;height:100%;width:0;border-radius:5px;background:var(--pk);transition:width 1.2s var(--ex);transition-delay:calc(.5s + var(--i)*120ms)}
.og-src>div:nth-child(2) u i{background:var(--am)}
.og-pane.on .og-src u i{width:var(--w)}
.og-src em{font-style:normal;font-variant-numeric:tabular-nums;color:#fff}
@supports not (backdrop-filter:blur(1px)){.og-chap li button,.og-app,.og-msg.ai,.og-typing,.og-doc,.og-tx{background:rgba(20,30,40,.55)}}
@media (max-width:900px){.og-wrap{grid-template-columns:1fr;gap:24px}.og-ss .ss-h{text-align:center}.og-ss .ss-h h2{font-size:40px}
  .og-chap{margin-top:20px;grid-template-columns:repeat(4,1fr);gap:6px}.og-chap li button{padding:10px 6px;grid-template-columns:1fr;justify-items:center;gap:6px}
  .og-chap b{font-size:13px;text-align:center}.og-chap span,.og-chap em{display:none}
  .og-app{min-height:380px;padding:12px;order:2}.og-cta{margin-top:20px}.og-pane{padding:18px;gap:10px}.og-docs{gap:8px}.og-doc{padding:12px}.og-doc .og-ic{width:28px;height:28px}
  .og-earn b{font-size:40px}.og-tx{grid-template-columns:22px 1fr auto auto;gap:8px}.og-tx .og-ic{width:22px;height:22px}.og-src>div{grid-template-columns:60px 1fr auto;gap:8px}}
@media (prefers-reduced-motion:reduce){.og-chap li.on .bar i{animation:none}}

/* 获得第一份收入：玻璃拟态卡片网格 + 玻璃流体 blob 插画（去掉鼠标跟随光斑，纯 hover 上浮） */
.ern-wrap{max-width:1240px;margin:0 auto;padding:0 20px}
.ern-wrap .ss-h{max-width:760px}
.ern-grid{margin-top:72px;display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.ern-c{position:relative;border-radius:18px;background:rgba(255,255,255,.035);border:1px solid rgba(255,255,255,.08);backdrop-filter:blur(14px);padding:26px 20px;display:flex;flex-direction:column;gap:14px;overflow:hidden;transition:border-color .3s,transform .3s var(--se)}
.ern-c:hover{border-color:rgba(31,209,165,.35);transform:translateY(-4px)}
.ern-art{width:100%;height:84px;border-radius:12px;position:relative;overflow:hidden;display:grid;place-items:center}
.ern-art svg{width:100%;height:100%;position:absolute;inset:0}
.ern-c h4{font:500 16px/1.35 var(--sff);color:var(--sf)}
.ern-c p{font-size:12.5px;line-height:1.6;color:var(--sf2);flex:1}
.ern-c span{font:500 11.5px var(--sff);color:var(--sf3);display:flex;align-items:center;gap:6px}
.ern-art.royalty{background:radial-gradient(circle at 30% 30%,#16352c,#0c1f1a)}
.ern-art.brief{background:radial-gradient(circle at 30% 30%,#132a47,#0b1c33)}
.ern-art.invite{background:radial-gradient(circle at 30% 30%,#231c3c,#161029)}
.ern-art.contest{background:radial-gradient(circle at 30% 30%,#332a12,#20190a)}
.ern-art.viral{background:radial-gradient(circle at 30% 30%,#321828,#1e0f18)}
.ern-blob{animation:ernBlobDrift 7s ease-in-out infinite}
.ern-blob.b1{animation-duration:8s}
.ern-blob.b2{animation-duration:6.4s;animation-delay:-1.4s}
.ern-blob.b3{animation-duration:5.6s;animation-delay:-2.8s}
@keyframes ernBlobDrift{0%,100%{transform:translate(0,0) scale(1)}25%{transform:translate(6px,-5px) scale(1.08)}50%{transform:translate(-5px,4px) scale(.94)}75%{transform:translate(4px,6px) scale(1.04)}}
.ern-blob-hi{animation:ernHiFloat 4.5s ease-in-out infinite}
@keyframes ernHiFloat{0%,100%{transform:translate(0,0);opacity:.35}50%{transform:translate(8px,10px);opacity:.6}}
@media (max-width:1000px){.ern-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:900px){.ern-grid{padding:0 20px}}
@media (prefers-reduced-motion:reduce){.ern-blob,.ern-blob-hi{animation:none!important}}

/* ===== 社区（cm = community）：方案 03 Live Feed——左文案 + 右侧 Threads 式时间线，顶部不断插入新动态；突出点赞与互评 ===== */
#community{justify-content:center}
.cm-wrap{max-width:1240px;width:100%;margin:0 auto;padding:0 24px;display:grid;grid-template-columns:1fr 560px;gap:80px;align-items:center}
.cm-live{display:inline-flex;align-items:center;gap:8px;font:500 12px ui-monospace,'SF Mono',Menlo,Consolas,monospace;letter-spacing:.1em;color:var(--pk);margin-bottom:22px}
.cm-live i{position:relative;width:8px;height:8px;border-radius:50%;background:var(--pk)}
.cm-live i::before,.cm-live i::after{content:'';position:absolute;inset:0;border-radius:50%;background:var(--pk);animation:cmPing 1.8s var(--se) infinite}
.cm-live i::after{animation-delay:.6s}
@keyframes cmPing{0%{transform:scale(1);opacity:.7}100%{transform:scale(3.2);opacity:0}}
.cm-txt h2{font:600 clamp(36px,4vw,54px)/1.12 var(--sff);letter-spacing:-.025em;margin:0 0 22px;color:var(--sf)}
.cm-txt p{font:400 clamp(18px,1.8vw,22px)/1.6 var(--sff);color:var(--sf2);max-width:560px;margin:0}
.cm-fd{height:600px;max-height:72vh;overflow:hidden;position:relative;
  -webkit-mask-image:linear-gradient(transparent,#000 12%,#000 80%,transparent);mask-image:linear-gradient(transparent,#000 12%,#000 80%,transparent)}
.cm-fi{display:grid;grid-template-columns:36px 1fr;gap:12px;padding:18px 4px;border-bottom:1px solid var(--sl)}
.cm-fi.new{animation:cmIn .7s var(--se)}
@keyframes cmIn{from{opacity:0;transform:translateY(-24px)}}
#community .av{display:block;flex:none;border-radius:50%;border:0;background:none}
#community .cm-fi>.av{width:36px;height:36px}
.cm-h{display:flex;align-items:baseline;gap:8px;font-size:15px;line-height:20px;min-height:20px}
.cm-h b{font-weight:600;color:var(--sf)}
.cm-h span{color:var(--sf3);font-size:13px}
.cm-fi>div>p{margin:4px 0 10px;font-size:15px;line-height:1.6;color:var(--sf)}
.cm-hot{display:flex;align-items:center;gap:8px;margin:0 0 10px;padding:2px 0 2px 12px;border-left:2px solid rgba(255,255,255,.12)}
#community .cm-hot .av{width:20px;height:20px}
.cm-hot p{margin:0;font-size:13.5px;line-height:1.5;color:var(--sf2)}
.cm-hot p b{font-weight:600;color:var(--sf);margin-right:6px}
.cm-act{display:flex;gap:22px}
.cm-act .ic{display:inline-flex;align-items:center;gap:5px;font-size:12px;color:var(--sf3)}
.cm-act .ic svg{width:13px;height:13px}
@media (max-width:980px){.cm-wrap{grid-template-columns:1fr;gap:36px}.cm-fd{height:56vh}}
@media (prefers-reduced-motion:reduce){.cm-live i::before,.cm-live i::after,.cm-fi.new{animation:none}}

/* ===== 记住你的喜好与习惯（mem）：整屏切到品牌青绿大色块，大字报主张 + 逐行浮现的学习信号列表，不用图标堆砌 ===== */
.mem-ss{background:linear-gradient(135deg,#0E8A72 0%,#156E9E 50%,#1A56B8 100%)}
.mem-grid{max-width:1320px;width:100%;margin:0 auto;padding:0 20px;display:grid;grid-template-columns:.72fr 1.28fr;align-items:center;gap:20px}
.mem-wrap{width:100%;text-align:left;display:flex;flex-direction:column;align-items:flex-start}
.mem-brain{position:relative;height:min(760px,84vh);border-radius:24px;overflow:hidden}
.mem-brain canvas{position:absolute;inset:0;width:100%;height:100%;display:block}
.mem-h{font:600 clamp(34px,4.6vw,56px)/1.18 var(--sff);color:#fff;margin:0 0 24px;max-width:500px;letter-spacing:-.01em}
.mem-desc{font-size:17px;line-height:1.8;color:rgba(255,255,255,.82);margin:0;max-width:460px}
@media (max-width:640px){.mem-desc{font-size:15px}}
@media (max-width:900px){.mem-grid{grid-template-columns:1fr;gap:8px}.mem-wrap{align-items:center;text-align:center}.mem-brain{height:380px;order:-1}}