:root{
  --brand:#0c8f64;--brand-live:#18c886;--brand-soft:#eafbf4;--brand-wash:#f4fdf9;
  --ink:#10251f;--title:#153b31;--muted:#65756f;--line:#dfe9e5;--surface:#fff;--canvas:#f7faf8;
  --price:#1b3540;--promo:#d43e4d;--promo-soft:#fff1f3;--info:#42677b;
  font-family:"PingFang SC","HarmonyOS Sans SC","MiSans","Microsoft YaHei UI","Microsoft YaHei",system-ui,sans-serif;
  color:var(--ink);background:var(--canvas);font-synthesis:none;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--canvas);font-weight:400;line-height:1.55}a{color:inherit}button,a{font:inherit}.shell{width:min(1120px,calc(100% - 32px));margin-inline:auto}
.nav{position:sticky;z-index:30;top:0;display:grid;height:64px;grid-template-columns:auto 1fr auto;align-items:center;gap:24px;border-bottom:1px solid rgba(223,233,229,.88);background:rgba(255,255,255,.92);backdrop-filter:blur(16px)}
.brand{display:inline-flex;align-items:center;gap:8px;color:var(--ink);font-size:17px;font-weight:700;text-decoration:none}.brand img{width:36px;height:36px;border-radius:50%;object-fit:cover}.nav nav{display:flex;justify-content:center;gap:24px}.nav nav a{color:#52645d;font-size:13px;text-decoration:none}.nav nav a:hover{color:var(--brand)}
.button{display:inline-flex;height:46px;align-items:center;justify-content:center;gap:8px;padding:0 20px;border:1px solid transparent;border-radius:14px;font-size:14px;font-weight:700;text-decoration:none;transition:transform .16s ease,box-shadow .16s ease,background .16s ease}.button img{width:16px;height:16px}.button.small{height:38px;padding:0 15px;border-color:#cfe8dd;background:var(--brand-wash);color:var(--brand)}.button.primary{background:var(--brand);box-shadow:0 8px 20px rgba(12,143,100,.18);color:#fff}.button.ghost{border-color:var(--line);background:#fff;color:var(--title)}.button:hover{transform:translateY(-1px)}.button.wide{width:100%;max-width:360px}
.hero{display:grid;min-height:620px;grid-template-columns:minmax(0,.95fr) minmax(380px,1.05fr);align-items:center;gap:72px;padding-block:72px}.eyebrow{margin:0 0 10px;color:var(--brand);font-size:12px;font-weight:700;letter-spacing:.08em}.hero h1{margin:0;color:var(--title);font-size:clamp(42px,5vw,66px);font-weight:700;letter-spacing:-.055em;line-height:1.12}.hero h1 span{color:var(--brand)}.lead{max-width:520px;margin:22px 0 0;color:var(--muted);font-size:18px}.actions{display:flex;gap:10px;margin-top:28px}.quiet{min-height:22px;margin:14px 0 0;color:#74827c;font-size:12px}.proof-line{display:flex;flex-wrap:wrap;gap:14px;margin-top:10px;color:#587068;font-size:12px}.proof-line span::first-letter{color:var(--brand)}
.hero-conversation{position:relative;overflow:hidden;border:1px solid #cfe9de;border-radius:26px;background:#f5f8ff;box-shadow:0 28px 70px rgba(29,78,61,.13)}.hero-conversation::before{position:absolute;top:-120px;right:-100px;width:280px;height:280px;border-radius:50%;background:rgba(24,200,134,.10);content:""}.chat-head{position:relative;display:flex;height:70px;align-items:center;justify-content:space-between;padding:0 20px;border-bottom:1px solid #dce8e4;background:rgba(239,255,248,.86)}.chat-head span{display:grid;grid-template-columns:42px auto;align-items:center;column-gap:10px;font-weight:700}.chat-head img{width:42px;height:42px;grid-row:1/3;border-radius:50%}.chat-head small{grid-column:2;color:#71817b;font-size:11px;font-weight:400}.chat-head i{width:9px;height:9px;border-radius:50%;background:#20d291;box-shadow:0 0 0 6px rgba(32,210,145,.1)}.chat-user{position:relative;width:max-content;max-width:78%;margin:28px 18px 14px auto;padding:13px 16px;border-radius:16px 16px 4px 16px;background:#0c8f64;color:#fff;font-size:14px}.file-chip{display:flex;width:72%;align-items:center;gap:11px;margin:0 0 12px 18px;padding:12px;border:1px solid #e0e8e5;border-radius:14px;background:#fff}.file-chip>img{width:22px;height:22px}.file-chip span{display:flex;flex-direction:column}.file-chip strong{font-size:13px}.file-chip small{color:#74827c;font-size:11px}.chat-result{margin:0 18px 22px;padding:15px;border:1px solid #e0e8e5;border-radius:14px;background:#fff}.chat-result b{color:var(--brand);font-size:12px}.chat-result ol{margin:8px 0 0;padding-left:20px;color:#344940;font-size:13px}.hero-conversation>p{display:flex;align-items:center;gap:6px;margin:0;padding:11px 18px;border-top:1px solid #dfe9e5;background:rgba(255,255,255,.76);color:#62756e;font-size:11px}.hero-conversation>p img{width:15px;height:15px}
.section{padding-block:88px}.section-head{max-width:650px;margin-bottom:30px}.section-head h2{margin:0;color:var(--title);font-size:clamp(30px,4vw,44px);letter-spacing:-.035em;line-height:1.2}.section-head>p:last-child{margin:12px 0 0;color:var(--muted);font-size:15px}.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}.feature-grid article{display:flex;gap:15px;padding:24px;border:1px solid var(--line);border-radius:20px;background:#fff;box-shadow:0 5px 20px rgba(28,58,47,.035)}.feature-icon{display:grid;width:42px;height:42px;flex:0 0 42px;place-items:center;border-radius:13px;background:var(--brand-soft)}.feature-icon img{width:21px;height:21px}.feature-grid h3{margin:0;color:var(--title);font-size:18px}.feature-grid p{margin:5px 0;color:var(--muted);font-size:13px}.feature-grid small{color:var(--info);font-size:11px}
.how-band{border-block:1px solid #dcebe4;background:#edf9f3}.how-band .section-head{text-align:center;margin-inline:auto}.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:0 0 26px;padding:0;list-style:none}.steps li{display:flex;gap:12px;padding:20px;border:1px solid #d6e9e0;border-radius:18px;background:rgba(255,255,255,.82)}.steps b{display:grid;width:28px;height:28px;flex:0 0 28px;place-items:center;border-radius:9px;background:#dff8ed;color:var(--brand);font-size:12px}.steps h3{margin:2px 0 4px;color:var(--title);font-size:15px}.steps p{margin:0;color:var(--muted);font-size:12px}.how-band .button{display:flex;margin-inline:auto}
.plans-section{padding-block:88px}.plan-heading{text-align:center;margin-inline:auto}.public-plan-tabs{display:grid;width:min(540px,100%);grid-template-columns:repeat(3,1fr);gap:5px;margin:0 auto 22px;padding:5px;border:1px solid var(--line);border-radius:16px;background:#eff4f2}.public-plan-tabs button{display:flex;min-height:52px;flex-direction:column;align-items:center;justify-content:center;border:0;border-radius:11px;background:transparent;color:#63736d;cursor:pointer}.public-plan-tabs button strong{font-size:14px}.public-plan-tabs button small{font-size:10px}.public-plan-tabs button[aria-selected="true"]{background:#fff;color:var(--brand);box-shadow:0 3px 12px rgba(29,72,56,.09)}.plan-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.plan-card{position:relative;display:flex;min-width:0;flex-direction:column;padding:22px;border:1px solid var(--line);border-radius:20px;background:#fff;box-shadow:0 6px 22px rgba(25,55,44,.04)}.plan-card.featured{border-color:#78dab5;box-shadow:0 8px 26px rgba(12,143,100,.10)}.plan-top{display:flex;min-height:28px;align-items:center;justify-content:space-between;gap:6px;color:var(--brand);font-size:11px;font-weight:700}.plan-top i{padding:4px 7px;border-radius:999px;background:var(--brand-soft);font-style:normal;white-space:nowrap}.plan-top .plan-saving{background:var(--promo-soft);color:var(--promo)}.plan-card h3{margin:12px 0 2px;color:var(--title);font-size:20px}.plan-card>p{min-height:40px;margin:0;color:var(--muted);font-size:12px}.price{display:flex;min-height:86px;flex-wrap:wrap;align-content:end;align-items:baseline;column-gap:4px;margin-top:12px}.price del{width:100%;color:#83918b;font-size:10px}.price strong{color:var(--price);font-size:32px;line-height:1}.price small{color:#65766f;font-size:11px}.plan-card .plan-value{min-height:auto;margin-top:10px;padding:9px;border-radius:10px;background:#f3f8f5;color:var(--brand-strong);font-size:12px;font-weight:700}.plan-card ul{min-height:88px;margin:14px 0;padding:0;list-style:none;color:#566a62;font-size:11px}.plan-card li{margin:6px 0}.plan-card li::before{margin-right:6px;color:var(--brand);content:"✓"}.plan-card .button{margin-top:auto;height:40px;padding-inline:10px;font-size:12px}.catalog-note{margin:16px 0 0;color:#72827b;font-size:11px;text-align:center}.loading{grid-column:1/-1;padding:20px;border:1px solid var(--line);border-radius:14px;background:#fff;color:var(--muted);text-align:center}.loading.error{border-color:#f0cbd0;background:var(--promo-soft);color:#a82d3c}
.trust-band{border-block:1px solid #dfe9e5;background:#f0f7f4}.rules-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.rules-grid article{padding:20px;border:1px solid #dce8e3;border-radius:18px;background:#fff}.rule-icon{display:grid;width:38px;height:38px;place-items:center;border-radius:12px;background:var(--brand-soft)}.rule-icon img{width:20px;height:20px}.rules-grid h3{margin:14px 0 6px;color:var(--title);font-size:16px}.rules-grid p{margin:0;color:var(--muted);font-size:12px}.trust-band details{margin-top:12px;padding:16px 18px;border:1px solid #dce8e3;border-radius:14px;background:#fff;color:var(--muted);font-size:12px}.trust-band summary{color:var(--title);font-size:13px;font-weight:700;cursor:pointer}.trust-band details p{margin:10px 0 0}
.roadmap-section{padding-block:70px}.roadmap-list{display:grid;gap:10px}.roadmap-item{display:grid;grid-template-columns:150px 1fr auto;align-items:center;gap:16px;padding:16px;border:1px solid var(--line);border-radius:14px;background:#fff}.roadmap-item div{display:flex;flex-direction:column}.roadmap-item span{color:var(--brand);font-size:11px}.roadmap-item strong{font-size:12px}.roadmap-item p{margin:0;color:#4f625a;font-size:13px}.roadmap-item>b{padding:5px 8px;border-radius:999px;background:var(--brand-soft);color:var(--brand);font-size:10px}
footer{padding:40px 0 22px;border-top:1px solid var(--line);background:#fff}.footer{display:grid;grid-template-columns:1fr auto auto;gap:48px;align-items:start}.footer p,.footer span{display:block;margin:5px 0 0;color:#78867f;font-size:11px}.footer strong{font-size:12px}.copyright{margin-top:30px;color:#8b9892;font-size:10px}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid rgba(24,200,134,.24);outline-offset:3px}
@media(max-width:800px){.shell{width:min(100% - 24px,580px)}.nav{height:58px;grid-template-columns:auto 1fr;gap:8px}.nav nav{display:none}.nav>.button{justify-self:end;height:34px;padding-inline:11px;font-size:11px}.brand img{width:34px;height:34px}.brand{font-size:16px}.hero{min-height:auto;grid-template-columns:1fr;gap:34px;padding-block:46px}.hero h1{font-size:38px}.lead{margin-top:16px;font-size:15px}.actions{margin-top:22px}.actions .button{flex:1;padding-inline:12px}.proof-line{justify-content:space-between;gap:6px}.hero-conversation{border-radius:20px}.chat-user{font-size:12px}.section{padding-block:58px}.section-head{margin-bottom:22px}.section-head h2{font-size:29px}.feature-grid{grid-template-columns:1fr}.feature-grid article{padding:18px}.steps{grid-template-columns:1fr 1fr;gap:8px}.steps li{padding:14px}.plans-section{padding-block:58px}.plan-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}.plan-card{padding:14px;border-radius:17px}.plan-card h3{font-size:18px}.plan-card>p{font-size:11px}.price strong{font-size:27px}.plan-card ul{display:none}.plan-card .button{margin-top:14px}.rules-grid{grid-template-columns:1fr 1fr;gap:8px}.rules-grid article{padding:16px}.roadmap-item{grid-template-columns:1fr auto}.roadmap-item p{grid-column:1/-1}.footer{grid-template-columns:1fr;gap:20px}.copyright{margin-top:22px}}
@media(max-width:380px){.hero h1{font-size:34px}.proof-line{font-size:10px}.plan-card{padding:12px}.plan-top{font-size:10px}.plan-card h3{font-size:16px}.price strong{font-size:24px}.steps{grid-template-columns:1fr}.rules-grid{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}