:root{
  --lt-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","STSong","SimSun",serif;
  --lt-kai:"Kaiti SC","STKaiti","KaiTi","KaiTi_GB2312",serif;
  --ink-paper:#f2ecdd;
  --ink-black:#1c1a16;
  --ink-soft:rgba(28,26,22,.62);
  --ink-faint:rgba(28,26,22,.34);
  --ink-cinnabar:#b03a2e;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink-black);background:var(--ink-paper);font-family:var(--lt-serif);-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button{font:inherit}
svg{display:block}
.landing-theme{position:relative;display:flex;min-height:100vh;flex-direction:column;overflow:hidden}
.landing-theme-ink{
  color:var(--ink-black);
  background-color:var(--ink-paper);
  background-image:radial-gradient(ellipse at 18% 12%,rgba(176,58,46,.05),transparent 42%),url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='180' height='180'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2'/><feColorMatrix type='saturate' values='0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)' opacity='.35'/></svg>");
  background-size:auto,180px 180px;
}
.ink-wash{position:absolute;pointer-events:none;border-radius:50%;filter:blur(38px)}
.ink-wash-a{top:-8rem;left:-10rem;width:34rem;height:34rem;background:radial-gradient(circle,rgba(28,26,22,.14),transparent 68%);animation:inkDrift 22s ease-in-out infinite alternate}
.ink-wash-b{right:-12rem;bottom:6rem;width:40rem;height:40rem;background:radial-gradient(circle,rgba(176,58,46,.1),transparent 66%);animation:inkDrift 26s ease-in-out 3s infinite alternate-reverse}
@keyframes inkDrift{to{transform:translate3d(2rem,-1.5rem,0) scale(1.06)}}
.ink-header{z-index:10;display:flex;width:100%;max-width:1600px;align-items:center;justify-content:space-between;margin:0 auto;padding:1.4rem 2rem;animation:inkFadeDown .9s cubic-bezier(.22,.8,.3,1) .15s both}
@keyframes inkFadeDown{from{opacity:0;transform:translateY(-14px)}to{opacity:1;transform:none}}
.ink-brand{display:inline-flex;align-items:center;gap:.65rem}
.brand-mark{width:2.25rem;height:2.25rem;color:var(--ink-black)}
.ink-brand-name{font-size:.95rem;font-weight:700;letter-spacing:.14em}
.ink-brand-sub{font-weight:400;color:var(--ink-soft)}
.ink-nav{display:none;gap:2.2rem;font-size:.85rem;letter-spacing:.22em;color:var(--ink-soft)}
@media(min-width:768px){.ink-nav{display:flex}}
.ink-nav a{position:relative;transition:color .25s ease}
.ink-nav a:after{content:"";position:absolute;bottom:-.35rem;left:50%;width:0;height:2px;background:var(--ink-cinnabar);transition:width .3s ease,left .3s ease}
.ink-nav a:hover{color:var(--ink-black)}
.ink-nav a:hover:after{left:0;width:100%}
.ink-header-actions{display:flex;align-items:center;gap:.8rem}
.ink-btn-ghost{min-height:2.5rem;cursor:pointer;border:1px solid rgba(28,26,22,.4);border-radius:999px;background:transparent;padding:.5rem 1.5rem;color:var(--ink-black);font-family:var(--lt-serif);font-size:.85rem;letter-spacing:.18em;transition:background .25s ease,color .25s ease,transform .2s ease}
.ink-btn-ghost:hover{background:var(--ink-black);color:var(--ink-paper);transform:translateY(-1px)}
.ink-main{position:relative;z-index:5;display:flex;width:100%;max-width:1600px;flex:1;flex-direction:column;margin:0 auto;padding:0 2rem}
.ink-stage{position:relative;display:flex;flex:1;align-items:center;justify-content:center}
.ink-stage-body{width:100%}
.ink-hero{position:relative;display:flex;align-items:center;justify-content:center;text-align:center}
.ink-hero-text{max-width:46rem}
.ink-eyebrow{display:inline-flex;align-items:center;gap:.8rem;margin-bottom:2.2rem;color:var(--ink-cinnabar);font-family:var(--lt-kai);font-size:.95rem;letter-spacing:.42em;text-indent:.42em;animation:inkFadeUp .9s ease .25s both}
.ink-eyebrow-tick{display:inline-block;width:2.2rem;height:2px;background:var(--ink-cinnabar);transform-origin:left center;animation:inkTick .7s cubic-bezier(.22,.8,.3,1) .3s both}
@keyframes inkTick{from{transform:scaleX(0)}to{transform:scaleX(1)}}
.ink-title{margin:0;font-size:clamp(2.3rem,7vw,5.4rem);font-weight:800;line-height:1.16;letter-spacing:.05em}
.ink-title-line{position:relative;display:block;width:fit-content;margin:0 auto}
.ink-title-line--accent{color:var(--ink-cinnabar)}
.ink-title-line{opacity:0;filter:blur(10px);transform:translateY(.5em) scale(.7,1.3);animation:inkCharIn .85s cubic-bezier(.2,.75,.3,1) both}
.ink-title-line:nth-child(1){animation-delay:.35s}.ink-title-line:nth-child(2){animation-delay:.9s}.ink-title-line:nth-child(3){animation-delay:1.45s}
@keyframes inkCharIn{55%{filter:blur(2.5px)}78%{transform:translateY(-.04em) scale(1.04,.97)}to{opacity:1;filter:blur(0);transform:none}}
.ink-brush{position:absolute;bottom:-.18em;left:0;width:100%;height:.3em;color:var(--ink-cinnabar);opacity:.8}
.ink-brush path{stroke-dasharray:340;stroke-dashoffset:340;animation:inkBrushDraw 1.1s cubic-bezier(.4,0,.2,1) 2.1s both}
@keyframes inkBrushDraw{to{stroke-dashoffset:0}}
.ink-sub{margin:2.4rem auto 0;max-width:32rem;color:var(--ink-soft);font-family:var(--lt-kai);font-size:1.1rem;line-height:2;letter-spacing:.12em;animation:inkFadeUp 1s ease 1.75s both}
@keyframes inkFadeUp{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
.ink-cta-row{margin-top:2.6rem;animation:inkFadeUp 1s ease 2s both}
.ink-btn-solid{position:relative;display:inline-flex;min-height:3.2rem;align-items:center;gap:.6rem;overflow:hidden;cursor:pointer;border:none;border-radius:999px;background:var(--ink-black);padding:.9rem 2.4rem;color:var(--ink-paper);font-family:var(--lt-serif);font-size:.95rem;font-weight:600;letter-spacing:.22em;transition:transform .25s ease,box-shadow .25s ease}
.ink-btn-solid:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 30% 50%,rgba(176,58,46,.9),transparent 70%);opacity:0;transform:scale(.4);transition:opacity .35s ease,transform .45s ease}
.ink-btn-solid:hover{transform:translateY(-2px);box-shadow:0 16px 40px #1c1a1652}
.ink-btn-solid:hover:before{opacity:1;transform:scale(1.4)}
.ink-btn-solid>*{position:relative}.ink-btn-solid svg{width:16px;height:16px;transition:transform .25s ease}.ink-btn-solid:hover svg{transform:translateX(4px)}
.ink-features{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:.4rem;margin-top:3rem;color:var(--ink-faint);font-family:var(--lt-kai);font-size:.95rem;letter-spacing:.3em;animation:inkFadeUp 1s ease 2.25s both}
.ink-feature+.ink-feature:before{content:"、";margin-right:.4rem;color:var(--ink-cinnabar);opacity:.6}
.ink-side{position:absolute;top:50%;right:2.5rem;z-index:6;display:none;align-items:flex-start;gap:2.2rem;transform:translateY(-50%);pointer-events:none}
@media(min-width:1100px){.ink-side{display:flex}}
.ink-vertical{writing-mode:vertical-rl;color:var(--ink-faint);font-family:var(--lt-kai);font-size:1.05rem;letter-spacing:.7em;animation:inkVerticalIn 1.4s cubic-bezier(.22,.8,.3,1) 2s both}
@keyframes inkVerticalIn{from{opacity:0;clip-path:inset(0 0 100% 0)}to{opacity:1;clip-path:inset(0)}}
.ink-seal{display:flex;width:4.4rem;height:4.4rem;align-items:center;justify-content:center;border-radius:.5rem;background:var(--ink-cinnabar);box-shadow:0 10px 28px #b03a2e59;color:#f6efdf;font-family:var(--lt-kai);font-size:1.5rem;font-weight:700;letter-spacing:.1em;line-height:1.1;text-align:center;transform:rotate(-6deg);writing-mode:vertical-rl;animation:inkSealStamp .65s cubic-bezier(.3,1.4,.5,1) 2.5s both}
@keyframes inkSealStamp{from{opacity:0;transform:rotate(-16deg) scale(1.9)}55%{opacity:1;transform:rotate(-5deg) scale(.94)}75%{transform:rotate(-7deg) scale(1.04)}to{opacity:1;transform:rotate(-6deg) scale(1)}}
.ink-ghost-strip{overflow:hidden;padding:1.2rem 0 .4rem;-webkit-mask-image:linear-gradient(90deg,transparent,black 12%,black 88%,transparent);mask-image:linear-gradient(90deg,transparent,black 12%,black 88%,transparent)}
.ink-ghost-track{display:flex;width:max-content;animation:inkMarquee 46s linear infinite}
.ink-ghost-track span{white-space:nowrap;color:#1c1a1614;font-family:var(--lt-kai);font-size:clamp(3rem,6vw,5rem);font-weight:700;letter-spacing:.2em}
@keyframes inkMarquee{to{transform:translateX(-50%)}}

.platform-content{position:relative;background:#f6f0e2}
.content-shell{width:min(1160px,calc(100% - 48px));margin:0 auto}
.content-section{padding:112px 0;border-top:1px solid rgba(28,26,22,.1)}
.section-heading{max-width:670px;margin-bottom:48px}
.section-heading>span,.studio-copy>span,.faq-title>span,.closing-card>span{color:var(--ink-cinnabar);font-family:var(--lt-kai);font-size:.85rem;letter-spacing:.34em}
.section-heading h2,.studio-copy h2,.faq-title h2,.closing-card h2{margin:14px 0 16px;font-size:clamp(2rem,4vw,3.5rem);font-weight:800;line-height:1.25;letter-spacing:.04em}
.section-heading p,.studio-copy>p{margin:0;color:var(--ink-soft);font-family:var(--lt-kai);font-size:1rem;line-height:2;letter-spacing:.06em}
.ability-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.ability-grid article{min-height:260px;padding:34px;border:1px solid rgba(28,26,22,.12);border-radius:4px;background:rgba(255,255,255,.34);box-shadow:0 18px 50px rgba(28,26,22,.05);transition:.25s ease}
.ability-grid article:hover{transform:translateY(-4px);border-color:rgba(176,58,46,.28);box-shadow:0 24px 60px rgba(28,26,22,.09)}
.ability-grid i{display:grid;width:46px;height:46px;place-items:center;margin-bottom:35px;border-radius:50%;color:#f6efdf;background:var(--ink-cinnabar);font-style:normal}
.ability-grid svg{width:21px;height:21px}.ability-grid b{display:block;font-size:1.2rem;font-weight:700;letter-spacing:.12em}.ability-grid p{margin:15px 0 0;color:var(--ink-soft);font-family:var(--lt-kai);font-size:.95rem;line-height:1.9;letter-spacing:.06em}
.studio-section{background:#eee5d3}
.studio-layout{display:grid;grid-template-columns:.74fr 1.26fr;align-items:center;gap:72px}
.studio-copy ol{margin:40px 0 0;padding:0;display:grid;gap:24px;list-style:none}.studio-copy li{display:flex;gap:18px;align-items:flex-start}.studio-copy em{display:grid;flex:0 0 36px;height:36px;place-items:center;border:1px solid rgba(176,58,46,.28);border-radius:50%;color:var(--ink-cinnabar);font-family:var(--lt-kai);font-style:normal}.studio-copy b{font-size:1rem;letter-spacing:.1em}.studio-copy li p{margin:7px 0 0;color:var(--ink-soft);font-family:var(--lt-kai);font-size:.9rem;letter-spacing:.04em}
.editor-preview{overflow:hidden;border:1px solid rgba(28,26,22,.16);border-radius:8px;background:#f8f4e9;box-shadow:0 34px 90px rgba(28,26,22,.14);transform:rotate(.4deg)}
.editor-top{height:55px;padding:0 18px;display:flex;align-items:center;gap:7px;border-bottom:1px solid rgba(28,26,22,.1)}.editor-top>span{width:8px;height:8px;border-radius:50%;background:rgba(28,26,22,.2)}.editor-top>span:first-child{background:#b03a2e}.editor-top b{margin-left:12px;font-size:.72rem;font-weight:400;letter-spacing:.1em;color:var(--ink-soft)}.editor-top small{margin-left:auto;color:var(--ink-cinnabar);font-family:var(--lt-kai);font-size:.72rem}
.editor-body{min-height:430px;display:grid;grid-template-columns:145px 1fr}.editor-body aside{padding:20px 13px;border-right:1px solid rgba(28,26,22,.1);background:rgba(28,26,22,.035)}.editor-body aside strong{display:flex;height:36px;align-items:center;justify-content:center;background:var(--ink-black);color:var(--ink-paper);font-size:.72rem;font-weight:500;letter-spacing:.08em}.editor-body aside small{display:block;margin:22px 9px 8px;color:var(--ink-faint);font-family:var(--lt-kai);font-size:.68rem;letter-spacing:.13em}.editor-body aside a{display:block;padding:10px 9px;color:var(--ink-soft);font-family:var(--lt-kai);font-size:.76rem}.editor-body aside a.active{color:var(--ink-cinnabar);background:rgba(176,58,46,.07)}.editor-body article{padding:42px 45px}.editor-body article>small{color:var(--ink-faint);font-family:var(--lt-kai);font-size:.75rem}.editor-body h3{margin:10px 0 28px;font-size:1.7rem;letter-spacing:.1em}.editor-body p{color:var(--ink-soft);font-family:var(--lt-kai);font-size:.9rem;line-height:2}.ai-suggestion{margin-top:24px;padding:15px;display:flex;align-items:center;gap:12px;border:1px solid rgba(176,58,46,.18);background:rgba(176,58,46,.05)}.ai-suggestion svg{flex:0 0 20px;width:20px;height:20px;color:var(--ink-cinnabar)}.ai-suggestion span{color:var(--ink-soft);font-family:var(--lt-kai);font-size:.75rem;line-height:1.6}.ai-suggestion span b{display:block;color:var(--ink-cinnabar);font-weight:400}.ai-suggestion button{margin-left:auto;cursor:pointer;border:0;background:var(--ink-cinnabar);padding:7px 12px;color:#f6efdf;font-size:.72rem}
.pricing-section{background:#f6f0e2}.pricing-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:30px}.billing-toggle{padding:4px;display:flex;flex:none;border:1px solid rgba(28,26,22,.16);border-radius:999px}.billing-toggle button{min-width:68px;cursor:pointer;border:0;border-radius:999px;background:transparent;padding:9px 15px;color:var(--ink-soft);font-family:var(--lt-kai);font-size:.8rem}.billing-toggle button.active{color:var(--ink-paper);background:var(--ink-black)}
.plan-source{margin:-24px 0 25px;display:flex;align-items:center;gap:9px;color:var(--ink-soft);font-family:var(--lt-kai);font-size:.78rem}.plan-source i{width:7px;height:7px;border-radius:50%;background:var(--ink-cinnabar);box-shadow:0 0 0 4px rgba(176,58,46,.1)}
.pricing-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.plan-card{position:relative;min-height:430px;padding:29px 25px;display:flex;flex-direction:column;border:1px solid rgba(28,26,22,.13);border-radius:4px;background:rgba(255,255,255,.38);box-shadow:0 18px 50px rgba(28,26,22,.045)}.plan-card.featured{border-color:rgba(176,58,46,.45);box-shadow:0 24px 70px rgba(176,58,46,.09)}.popular,.plan-code{width:max-content;padding:5px 9px;color:var(--ink-cinnabar);border:1px solid rgba(176,58,46,.22);background:rgba(176,58,46,.06);font-family:var(--lt-kai);font-size:.68rem;letter-spacing:.08em}.plan-card h3{margin:25px 0 9px;font-size:1.25rem;letter-spacing:.08em}.plan-desc{min-height:42px;margin:0;color:var(--ink-soft);font-family:var(--lt-kai);font-size:.78rem;line-height:1.7}.plan-price{margin:24px 0 18px;display:flex;align-items:baseline}.plan-price sup{color:var(--ink-cinnabar);font-size:1rem}.plan-price strong{font-size:2.5rem;letter-spacing:-.04em}.plan-price span{margin-left:6px;color:var(--ink-faint);font-family:var(--lt-kai);font-size:.75rem}.credit-box{padding:13px;border-top:1px solid rgba(28,26,22,.1);border-bottom:1px solid rgba(28,26,22,.1);display:flex;align-items:center;justify-content:space-between}.credit-box span{color:var(--ink-soft);font-family:var(--lt-kai);font-size:.72rem}.credit-box b{color:var(--ink-cinnabar);font-size:.88rem}.plan-list{margin:20px 0 26px;padding:0;display:grid;gap:12px;list-style:none;color:var(--ink-soft);font-family:var(--lt-kai);font-size:.78rem}.plan-list li{display:flex;align-items:center;gap:8px}.plan-list svg{width:14px;height:14px;color:var(--ink-cinnabar)}.plan-card .button{width:100%;min-height:42px;margin-top:auto;cursor:pointer;border:1px solid var(--ink-black);border-radius:999px;background:transparent;color:var(--ink-black);font-family:var(--lt-serif);font-size:.78rem;font-weight:600;letter-spacing:.12em}.plan-card.featured .button{color:var(--ink-paper);background:var(--ink-black)}.pricing-note{margin:22px 0 0;color:var(--ink-faint);font-family:var(--lt-kai);font-size:.75rem;line-height:1.8}
.faq-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:80px}.faq-title h2{max-width:420px}.faq-list{border-top:1px solid rgba(28,26,22,.16)}details{border-bottom:1px solid rgba(28,26,22,.16)}summary{min-height:70px;display:flex;align-items:center;justify-content:space-between;gap:20px;cursor:pointer;list-style:none;font-size:.95rem;font-weight:700;letter-spacing:.06em}summary::-webkit-details-marker{display:none}summary i{display:grid;width:26px;height:26px;place-items:center;border:1px solid rgba(28,26,22,.18);border-radius:50%;font-family:Arial;font-size:1rem;font-style:normal;font-weight:400;transition:.2s}details[open] summary i{color:var(--ink-cinnabar);transform:rotate(45deg)}details p{margin:-3px 48px 23px 0;color:var(--ink-soft);font-family:var(--lt-kai);font-size:.88rem;line-height:1.9;letter-spacing:.04em}
.closing-section{padding:0 0 112px;background:#f6f0e2}.closing-card{min-height:280px;padding:55px;display:grid;place-items:center;text-align:center;border:1px solid rgba(28,26,22,.13);background:#eee5d3}.closing-card h2{margin:15px 0 28px}.closing-card .ink-btn-solid{font-size:.85rem}
footer{border-top:1px solid rgba(28,26,22,.12);background:#eee5d3}.footer-inner{min-height:145px;display:flex;align-items:center;justify-content:space-between;gap:30px}.footer-meta{display:grid;justify-items:end;gap:13px}.footer-policy-links{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:10px 22px;color:var(--ink-soft);font-family:var(--lt-kai);font-size:.78rem;letter-spacing:.04em}.footer-policy-links a{position:relative}.footer-policy-links a:hover{color:var(--ink-cinnabar)}.footer-inner p{margin:0;color:var(--ink-faint);font-family:var(--lt-kai);font-size:.75rem;letter-spacing:.06em}
footer .site-icp{color:var(--ink-faint);font-family:var(--lt-kai);font-size:.75rem;letter-spacing:.04em;text-decoration:none}footer .site-icp:hover{color:var(--ink-cinnabar)}
.toast{position:fixed;z-index:60;left:50%;bottom:24px;max-width:calc(100% - 32px);padding:12px 17px;display:flex;align-items:center;gap:9px;border-radius:4px;color:var(--ink-paper);background:var(--ink-black);box-shadow:0 16px 45px rgba(28,26,22,.24);font-family:var(--lt-kai);font-size:.8rem;transform:translate(-50%,100px);opacity:0;transition:.25s}.toast.show{transform:translate(-50%,0);opacity:1}.toast i{width:7px;height:7px;border-radius:50%;background:var(--ink-cinnabar)}
@media(max-width:1050px){.studio-layout{grid-template-columns:1fr}.studio-copy{max-width:660px}.pricing-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:720px){
  .ink-header{padding:1rem}.brand-mark{width:2rem;height:2rem}.ink-brand-name{font-size:.78rem}.ink-btn-ghost{min-height:2.25rem;padding:.4rem 1rem;font-size:.75rem}.ink-main{padding:0 1rem}.ink-eyebrow{margin-bottom:1.8rem;font-size:.78rem;letter-spacing:.25em;text-indent:.25em}.ink-title{font-size:clamp(2.5rem,14vw,4.2rem)}.ink-sub{font-size:.95rem}.ink-features{font-size:.8rem;letter-spacing:.18em}.ink-ghost-track span{font-size:3rem}.content-shell{width:min(100% - 32px,1160px)}.content-section{padding:78px 0}.section-heading h2,.studio-copy h2,.faq-title h2,.closing-card h2{font-size:2.1rem}.ability-grid,.pricing-grid{grid-template-columns:1fr}.studio-layout{gap:42px}.editor-body{grid-template-columns:1fr}.editor-body aside{display:none}.editor-body article{padding:30px 24px}.pricing-heading{align-items:flex-start;flex-direction:column}.plan-source{margin:0 0 25px}.faq-layout{grid-template-columns:1fr;gap:30px}.closing-section{padding-bottom:78px}.closing-card{padding:42px 22px}.footer-inner{padding:35px 0;align-items:flex-start;flex-direction:column}.footer-meta{justify-items:start;width:100%}.footer-policy-links{justify-content:flex-start;gap:11px 18px}.footer-inner p{margin:0}
}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation:none!important;transition:none!important}}