:root{--sky:#eaf5f7;--paper:#f9fbf8;--navy:#173d53;--blue:#176688;--deep:#0d5273;--sea:#53abc2;--foam:#d6edf0;--muted:#66818b;--line:#cfe2e6;--rice:#fff9e8;--coral:#eeae82;font-family:Inter,"PingFang SC","Microsoft YaHei",system-ui,sans-serif;color:var(--navy);background:var(--sky);font-synthesis:none}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-width:320px;background:radial-gradient(circle at 85% 2%,#fff9e6 0,transparent 28%),var(--sky)}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}button{cursor:pointer}img{display:block;max-width:100%}.wrap{width:min(100%,1260px);margin:auto;padding-inline:38px}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}.hidden{display:none!important}
.nav{height:88px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:11px;font-weight:850;font-size:24px;letter-spacing:-.06em;white-space:nowrap}.brand img{width:43px;height:43px;filter:drop-shadow(0 5px 7px #1e72902b)}.brand-dot{color:var(--coral);margin-left:-10px}.nav nav{display:flex;align-items:center;gap:36px;font-size:14px;font-weight:650;color:#456a79}.nav nav a:hover,.text-link:hover{color:var(--blue)}.nav-chat{padding:11px 18px;border:1px solid #8ab7c5;border-radius:999px;background:#fff8}.nav-chat span{margin-left:12px}.nav-chat:hover{background:white}
.kicker,.eyebrow,.card-num{font-size:11px;font-weight:850;letter-spacing:.16em;color:var(--blue)}.hero{min-height:675px;display:grid;grid-template-columns:1fr 1.04fr;align-items:center;gap:26px;padding-top:30px;padding-bottom:74px}.hero-copy{position:relative;z-index:2}.eyebrow{display:inline-flex;align-items:center;gap:10px;letter-spacing:.05em;padding:10px 16px;border-radius:100px;background:#fffaf0;border:1px solid #f1e9cf}.sparkle{color:#e2a463;font-size:19px;line-height:.6}.hero h1,.section-heading h2,.about h2,.closing h2,.chat-head h1{font-family:Georgia,"Songti SC","STSong",serif;font-weight:700;letter-spacing:-.065em}.hero h1{font-size:clamp(62px,6vw,94px);line-height:1.18;margin:24px 0 26px}.hero h1 em,.about h2 em{font-style:normal;color:var(--blue)}.lead{max-width:530px;font-size:17px;line-height:1.95;color:#506f7a;margin:0 0 30px}.actions{display:flex;flex-wrap:wrap;gap:13px}.button{display:inline-flex;justify-content:space-between;align-items:center;gap:30px;min-height:52px;padding:14px 21px;border-radius:14px;border:1px solid var(--blue);font-weight:760;font-size:14px;transition:transform .2s,background .2s,box-shadow .2s}.button:hover{transform:translateY(-3px);box-shadow:0 9px 20px #235d741d}.button.primary{background:var(--blue);color:#fff}.button.primary:hover{background:var(--deep)}.button.secondary{background:#ffffffa8;color:var(--blue)}.micro{font-size:12px;color:#829ba3;margin:17px 0 0}
.hero-art{height:530px;position:relative;display:grid;place-items:center;border-radius:50% 48% 43% 42%;background:radial-gradient(circle at 49% 34%,#fffdf3 0,#f9f4e6 34%,#d7edf1 74%,#b5dde8 100%);overflow:visible}.art-sun{position:absolute;width:200px;height:200px;background:#ffe6ac;border-radius:50%;top:42px;right:93px;filter:blur(1px);opacity:.72}.art-orbit{position:absolute;border:1px solid #79bacb60;border-radius:50%;pointer-events:none}.orbit-one{inset:31px -12px 36px 10px;transform:rotate(-12deg)}.orbit-two{inset:65px 17px 53px -35px;transform:rotate(13deg)}.hero-whale{position:relative;width:min(112%,625px);max-width:none;transform:translate(-10px,18px);filter:drop-shadow(0 22px 17px #155c7b1c)}.art-star{position:absolute;color:#e3b36a;z-index:1}.star-one{font-size:29px;left:65px;top:70px}.star-two{font-size:24px;right:52px;bottom:77px}.art-note{position:absolute;z-index:3;left:2px;bottom:46px;display:flex;flex-direction:column;gap:4px;background:#fffdfa;padding:14px 20px;border:1px solid #f0e5d4;border-radius:18px;box-shadow:0 14px 35px #245e7520;transform:rotate(-5deg)}.art-note span,.art-note small{font-size:11px;color:#72909c}.art-note strong{font-family:"Songti SC",serif;font-size:19px}.art-stamp{position:absolute;right:5px;top:34px;width:84px;height:84px;border:1px dashed #2b7891;border-radius:50%;display:grid;place-items:center;text-align:center;line-height:1.1;font-size:12px;font-weight:900;letter-spacing:.08em;color:var(--blue);transform:rotate(12deg)}
.ticker{overflow:hidden;background:#176888;color:#e8f5f2;padding:13px 0;font-size:13px;font-weight:760;letter-spacing:.18em;white-space:nowrap}.ticker-track{width:max-content;min-width:100%;text-align:center;word-spacing:30px}
.features{background:#f8fbf8;padding:104px 0 115px}.section-heading{display:grid;grid-template-columns:1.25fr .75fr;align-items:end;column-gap:32px}.section-heading .kicker{grid-column:1/-1}.section-heading h2{font-size:clamp(38px,4vw,62px);line-height:1.22;margin:20px 0 0}.section-heading p{color:var(--muted);margin:0 0 8px;line-height:1.8}.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:19px;margin-top:52px}.card{position:relative;min-height:290px;padding:30px 30px 36px;border:1px solid #dce9e9;border-radius:24px;background:#fff;box-shadow:0 8px 30px #356b7410;overflow:hidden}.card:after{content:"";position:absolute;right:-48px;top:-42px;width:125px;height:125px;border:1px solid #c8e3e9;border-radius:50%}.card-icon{width:58px;height:58px;display:grid;place-items:center;border-radius:20px;background:#dff1f3;color:var(--blue);font-size:30px;margin-bottom:27px}.rice-icon{background:#fff0d8;font-size:28px}.view-icon{background:#e7ebff;font-size:34px}.card-num{letter-spacing:.08em}.card h3{font-size:21px;letter-spacing:-.03em;margin:12px 0}.card p{font-size:14px;color:#68808a;line-height:1.85;margin:0}
.about{padding-top:110px;padding-bottom:120px;display:grid;grid-template-columns:1fr 1fr;align-items:center;gap:90px;background:var(--sky)}.about-visual{height:480px;position:relative;border-radius:35px;background:linear-gradient(160deg,#c8e6e9,#77b5cb 64%,#367d9d);overflow:hidden}.about-wave{position:absolute;width:680px;height:280px;border-radius:50%;left:-75px}.wave-back{bottom:-170px;background:#4a9db7;transform:rotate(-8deg)}.wave-front{bottom:-207px;background:#1e718f;transform:rotate(7deg)}.about-circle{position:absolute;width:230px;height:230px;left:50%;top:48%;transform:translate(-50%,-50%);display:grid;place-items:center;background:#fff9e8;border:12px solid #fffdf4b0;border-radius:50%;box-shadow:0 24px 45px #18516e34}.about-circle img{width:160px;filter:drop-shadow(0 10px 12px #17506a2d)}.about-bubble{position:absolute;border-radius:50%;border:2px solid #eef9f8ab}.bubble-a{width:22px;height:22px;top:82px;left:92px}.bubble-b{width:41px;height:41px;right:82px;top:133px}.about-label{position:absolute;bottom:27px;left:33px;color:#fff;font-family:"Songti SC",serif;font-size:19px}.about h2{font-size:clamp(42px,4.3vw,67px);line-height:1.2;margin:19px 0 24px}.about-copy p{max-width:520px;font-size:15px;color:#5e7c87;line-height:2;margin:0 0 18px}.text-link{display:inline-block;margin-top:12px;padding-bottom:6px;border-bottom:2px solid var(--blue);font-size:14px;font-weight:800;color:var(--blue)}.text-link span{margin-left:28px}
.closing{padding-bottom:36px}.closing-inner{position:relative;overflow:hidden;min-height:390px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;background:#155c7a;border-radius:30px;color:#fff;padding:54px 25px 76px}.closing-spark{color:#f3c27d;font-size:24px}.closing .kicker{color:#bce2e9;margin-top:7px}.closing h2{font-size:clamp(45px,4.8vw,68px);line-height:1.2;margin:15px 0}.closing p{max-width:520px;font-size:14px;line-height:1.8;color:#d6e9ed;margin:0 0 22px}.button.light{background:#fffaf0;color:#155c7a;border-color:#fffaf0;z-index:1}.button.light:hover{background:#fff}.closing-wave{position:absolute;bottom:-155px;width:130%;height:270px;background:#287e9e;border-radius:50%;opacity:.53}.footer{min-height:90px;display:flex;align-items:center;justify-content:space-between;gap:15px;color:#79949e;font-size:12px}
.chat-page{min-height:100vh}.chat-shell{max-width:960px;min-height:calc(100vh - 178px)}.chat-head{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:44px 0 30px}.chat-head h1{font-size:clamp(42px,5vw,65px);margin:12px 0 7px}.chat-head p{color:#698791;font-size:14px;margin:0}.chat-head-whale{width:70px;height:70px;transform:rotate(9deg);filter:drop-shadow(0 9px 10px #236c8630)}.chat-gate,.chat-panel{background:#fffefd;border:1px solid var(--line);border-radius:26px;box-shadow:0 22px 58px #245f7316}.chat-gate{text-align:center;padding:40px 40px 46px;min-height:430px}.gate-symbol{margin:0 auto 8px;width:72px;height:72px}.gate-symbol img{width:100%;height:100%}.chat-gate h2{font-family:"Songti SC",serif;font-size:30px;margin:15px 0 9px}.chat-gate p{color:#77919a;font-size:14px;line-height:1.8}.chat-gate form{max-width:460px;margin:29px auto 0;text-align:left}.chat-gate label{display:block;font-size:12px;font-weight:800;color:var(--blue);margin-bottom:10px}.invite-row{display:flex;gap:10px}.invite-row input{min-width:0;flex:1;border:1px solid #cde0e4;background:#fff;border-radius:12px;padding:14px;outline:none}.invite-row input:focus,.composer textarea:focus{border-color:var(--sea)}.form-error{color:#ad5949!important;min-height:20px}.gate-hint{margin-top:15px}.chat-panel{height:min(650px,72vh);min-height:470px;display:flex;flex-direction:column;overflow:hidden}.conversation-top{height:73px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:12px;padding:0 24px;background:#f4fbfb}.avatar{width:42px;height:42px}.conversation-top strong{display:block;font-size:14px}.conversation-top small{display:block;color:#819aa1;font-size:11px;margin-top:3px}.subtle-button{margin-left:auto;background:none;border:0;color:#74909a;font-size:12px}.subtle-button:hover{text-decoration:underline}.messages{flex:1;overflow:auto;padding:24px;display:flex;flex-direction:column;gap:18px}.welcome{text-align:center;margin:auto;color:#879ca2}.welcome img{width:64px;height:64px;margin:auto}.welcome h2{font-family:"Songti SC",serif;color:var(--navy);font-size:24px;margin:14px 0 7px}.welcome p{font-size:13px;margin:0}.message{display:flex;align-items:flex-start;gap:9px;max-width:85%}.message.user{align-self:flex-end;flex-direction:row-reverse}.message-avatar{width:29px;height:29px;flex:0 0 29px;display:grid;place-items:center;border-radius:50%;background:var(--blue);color:#fff;font-size:12px}.message.user .message-avatar{background:#ddebec;color:var(--blue)}.message-text{white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.75;background:#edf5f5;border-radius:5px 15px 15px 15px;padding:10px 14px;font-size:14px}.message.user .message-text{background:#dbeef3;border-radius:15px 5px 15px 15px}.composer{border-top:1px solid var(--line);padding:14px 18px 16px}.composer textarea{width:100%;resize:none;border:0;background:none;outline:none;line-height:1.5;min-height:54px;color:var(--navy)}.composer-bottom{display:flex;justify-content:space-between;align-items:center;color:#9baeb3;font-size:11px}.send-button{background:var(--blue);color:#fff;border:0;border-radius:50%;width:34px;height:34px;font-size:21px}.send-button:hover{background:var(--deep)}.chat-note{text-align:center;font-size:12px;color:#92a5ab;margin:18px 0 42px}.button:disabled,input:disabled{opacity:.52;cursor:not-allowed}.button:disabled:hover{transform:none;box-shadow:none}
@media(max-width:900px){.wrap{padding-inline:25px}.hero{grid-template-columns:1fr;gap:15px;padding-top:25px}.hero-art{width:min(100%,630px);margin:auto}.section-heading{grid-template-columns:1fr}.section-heading p{margin-top:20px}.about{gap:45px}}
@media(max-width:680px){.nav{height:72px}.brand{font-size:21px}.brand img{width:38px;height:38px}.nav nav{gap:12px}.nav nav a:not(.nav-chat){display:none}.nav-chat{padding:8px 13px;font-size:12px}.hero{padding-top:32px;padding-bottom:55px;min-height:0}.hero h1{font-size:clamp(53px,13vw,72px);margin:21px 0}.lead{font-size:15px;line-height:1.85}.hero-art{height:365px;margin-top:28px}.hero-whale{width:115%;transform:translate(-7px,10px)}.art-sun{width:130px;height:130px;right:60px}.art-note{left:-2px;bottom:12px;padding:9px 13px}.art-note strong{font-size:16px}.art-stamp{right:5px;top:8px;width:61px;height:61px;font-size:9px}.star-one{left:26px;top:33px}.star-two{right:22px;bottom:27px}.features{padding:70px 0}.section-heading h2{font-size:42px}.card-grid{grid-template-columns:1fr;gap:14px;margin-top:35px}.card{min-height:0;padding:26px}.card-icon{margin-bottom:18px}.about{grid-template-columns:1fr;padding-top:70px;padding-bottom:85px}.about-visual{height:320px}.about-circle{width:172px;height:172px}.about-circle img{width:125px}.about h2{font-size:48px}.closing-inner{min-height:350px}.footer{height:auto;min-height:92px;flex-direction:column;align-items:flex-start;justify-content:center;gap:7px}.chat-head{padding:30px 0 24px}.chat-head h1{font-size:42px}.chat-head-whale{width:52px;height:52px}.chat-gate{padding:38px 20px}.invite-row{flex-direction:column}.chat-panel{height:calc(100dvh - 244px);min-height:420px}.message{max-width:95%}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.button{transition:none}}