*{box-sizing:border-box}body{margin:0;font:18px/1.65 var(--body),sans-serif;background:var(--bg);color:var(--ink);--preview-accent:var(--accent);--preview-bg:var(--bg);--preview-ink:var(--ink)}
h1,h2,h3,p{margin:0}h1,h2,h3{font-family:var(--heading),sans-serif;line-height:1.2}h1{font-size:clamp(44px,6vw,80px)}h2{font-size:clamp(32px,4vw,52px)}h3{font-size:24px}p{max-width:65ch;margin-top:16px}a{color:inherit}button,input{font:inherit}a,button{transition:transform .2s,background .2s,color .2s,box-shadow .2s}a:active,button:active{transform:translateY(1px)}
.wrap{width:min(1280px,calc(100% - 64px));margin:auto}.top{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:24px 0}.top nav{display:flex;gap:24px}.top a{min-height:44px;display:inline-flex;align-items:center;text-decoration:none}.brand{font-weight:800;font-size:24px}.label{font:500 13px/1.6 var(--mono),monospace;letter-spacing:.16em;text-transform:uppercase;margin-bottom:24px;color:var(--accent)}
section{padding:96px 0}.split{display:grid;grid-template-columns:1.1fr .9fr;gap:64px;align-items:center}.grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px;margin-top:48px}.card{background:var(--surface);padding:32px;border:1px solid var(--line);border-radius:var(--radius);position:relative}.card p{color:var(--muted)}.action{display:inline-flex;align-items:center;justify-content:center;gap:12px;min-height:56px;padding:16px 28px;margin-top:32px;background:var(--accent);color:var(--accent-ink);border:2px solid transparent;border-radius:var(--button-radius);font-weight:700;text-decoration:none}.secondary{background:transparent;border-color:var(--line);color:var(--ink)}.actions{display:flex;gap:16px;flex-wrap:wrap}.meta{font:14px/1.7 var(--mono),monospace;color:var(--muted)}.rule{border-top:1px solid var(--line)}.number{font:700 48px/1.2 var(--heading),sans-serif;display:block;margin-bottom:16px;color:var(--accent)}
details.faq{padding:24px 0;border-bottom:1px solid var(--line)}details.faq summary{font-size:22px;min-height:48px;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px}details.faq summary::after{content:'+'}details.faq[open] summary::after{content:'−'}footer{padding:48px 0;border-top:1px solid var(--line)}.skip{position:absolute;top:-100px;left:16px;padding:16px;background:var(--accent);color:var(--accent-ink);z-index:10000}.tb-bao{padding:12px 24px;background:#101722;color:#edf2fa;font:13px/1.6 system-ui;display:flex;gap:16px;align-items:center;flex-wrap:wrap}.tb-bao span{flex:1}.tb-bao a{color:#d4e5ff}.tb-cta{padding:8px 16px;background:#38bdf8;color:#062032!important;border-radius:24px;text-decoration:none;font-weight:700}
input{width:100%;min-height:56px;background:var(--surface);color:var(--ink);border:1px solid var(--line);border-radius:8px;padding:16px;margin-top:12px}label{display:block;margin-top:24px}.empty{padding:24px;border:1px dashed var(--line);margin-top:24px}.feature-icon{width:48px;height:48px;margin-bottom:24px;display:grid;place-items:center;color:var(--accent);border:1px solid var(--line)}.feature-icon svg{width:24px;height:24px;stroke:currentColor;fill:none;stroke-width:1.5}
@media(max-width:1023px){.split{grid-template-columns:1fr;gap:48px}.grid{grid-template-columns:repeat(2,minmax(0,1fr))}.top nav{gap:16px}section{padding:80px 0}}
@media(max-width:639px){.wrap{width:calc(100% - 32px)}.grid{grid-template-columns:1fr;gap:24px}.top nav{display:none}section{padding:64px 0}.card{padding:24px}.action{width:100%}.actions{gap:0}.top{padding:16px 0}.tb-bao span{flex-basis:100%}}

:root{--bg:#F8FAFC;--ink:#0F172A;--surface:#FFFFFF;--accent:#4F46E5;--accent-ink:#FFFFFF;--muted:#53647c;--line:#E2E8F0;--radius:12px;--button-radius:999px;--heading:'Plus Jakarta Sans';--body:'Plus Jakarta Sans';--mono:'Plus Jakarta Sans'}
.hero{background:radial-gradient(ellipse at 75% 50%,#c4b5fd66,transparent 55%)}h1{font-weight:800;font-size:clamp(40px,4.8vw,64px);letter-spacing:-.02em}.gradient{background:linear-gradient(90deg,#4F46E5,#7C3AED);background-clip:text;color:transparent}.action{background:linear-gradient(90deg,#4F46E5,#7C3AED);box-shadow:0 4px 14px #4f46e54d}.action:hover{transform:translateY(-2px);box-shadow:0 8px 20px #4f46e555}.board{padding:32px;background:white;border:1px solid #E2E8F0;border-radius:12px;box-shadow:0 20px 60px #4f46e522;transform:perspective(2000px) rotateX(5deg) rotateY(-12deg);transition:transform .5s}.board:hover{transform:perspective(2000px) rotateX(2deg) rotateY(-8deg)}.board-header{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:24px}.badge{font-size:12px;padding:6px 12px;border-radius:999px;background:#eef2ff;color:#4F46E5}.task{padding:20px 0;border-top:1px solid #E2E8F0;display:flex;justify-content:space-between;gap:20px}.task span{color:#386047;font-size:14px}.progress{height:8px;background:#e0e7ff;border-radius:8px;margin-top:24px}.progress::after{content:'';display:block;width:66%;height:100%;background:linear-gradient(90deg,#4F46E5,#7C3AED);border-radius:8px}.card{box-shadow:0 4px 20px -2px #4f46e51a;transition:.2s}.card:hover{transform:translateY(-4px);box-shadow:0 10px 25px -5px #4f46e526,0 8px 10px -6px #4f46e51a}.feature-icon{border:0;border-radius:12px;background:#eef2ff}.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:48px 0}.metrics b{font-size:40px;display:block;color:#4F46E5}.metrics small{font-size:14px}.popular{transform:scale(1.05);border:2px solid #4F46E5}.final{background:linear-gradient(120deg,#312e81,#1e1b4b);color:white}.final .action{background:white;color:#312e81}.feature-visual{background:linear-gradient(120deg,#e0e7ff,#ede9fe);padding:48px;border-radius:24px;transform:perspective(1500px) rotateX(6deg) rotateY(12deg)}.feature-visual li{background:white;margin:16px 0;padding:16px;list-style:none;border-radius:8px}.reverse{direction:rtl}.reverse>*{direction:ltr}
@media(max-width:1023px){.board,.feature-visual{transform:none}.reverse{direction:ltr}}@media(max-width:639px){.metrics{grid-template-columns:1fr 1fr}.popular{transform:none}.task{flex-direction:column;gap:4px}.board{padding:24px}.feature-visual{padding:24px}}