/* Cloud-island interaction layer — ink, celadon, glass. */
html{scroll-padding-top:35px}
.hero-bottom .scroll-cue{position:absolute;left:50%;transform:translateX(-50%);bottom:0}
.platform-panel,.solution-card,.service-large,.service-item,.journey-panel,.contact-box{--light-x:50%;--light-y:30%}
.platform-panel{position:relative}
.platform-copy{position:relative;z-index:3}
.platform-art img.platform-landscape{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:61% center;opacity:.68;padding:0;border-radius:0;background:none;filter:saturate(.7);box-shadow:none;z-index:0;mask-image:linear-gradient(90deg,transparent,#000 25%);animation:scene-breathe 18s ease-in-out infinite alternate}
.platform-art #platform-logo{width:145px;padding:11px;border:1px solid #e1efd87a;box-shadow:0 15px 60px #01190fc0;transform:translateY(8px)}
.platform-art .orbit{z-index:1;border-color:#d6edd659;animation:orbit-turn 26s linear infinite}
.platform-art .orbit-two{animation-direction:reverse;animation-duration:38s}
.platform-art .connected{z-index:3;border:1px solid #cadfc133;border-radius:30px;background:#09241eb5;backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);padding:12px 18px;color:#dae7ce}
.connected i{animation:signal-pulse 3s ease-out infinite}
.solution-card{min-height:422px;padding:26px 28px 30px;isolation:isolate}
.solution-card:before{content:"";position:absolute;inset:0 0 auto;height:246px;background:linear-gradient(0deg,#102c24,transparent 60%),url('./assets/cloud-island.jpg') 62% 45%/cover;opacity:.65;z-index:-2;transition:transform 1.1s cubic-bezier(.16,1,.3,1),opacity 1s;mask-image:linear-gradient(#000 70%,transparent)}
.solution-card:nth-child(2n):before{background-position:center,22% 40%;background-size:auto,165%}
.solution-card:nth-child(3n):before{background-image:linear-gradient(0deg,#102c24,transparent 65%),url('./assets/shanshui-landscape.png');background-position:center,75% 40%}
.solution-card:hover:before,.solution-card:focus-within:before{transform:scale(1.065);opacity:.92}
.solution-card:after{inset:0;width:auto;height:auto;border:0;box-shadow:none;border-radius:inherit;transform:none;background:radial-gradient(450px circle at var(--light-x) var(--light-y),#d2f2ca16,transparent 60%);z-index:-1}
.card-top{height:204px}
.card-top>span:first-child{font-size:8px;letter-spacing:1.4px;line-height:1.6;color:#e0e8d6;text-shadow:0 2px 8px #031810}
.card-symbol{font-size:27px;padding:11px 12px;backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);background:#123b2d40;border-color:#ddedce3b;color:#ecf2df}
.solution-card h3{font-size:24px}
.solution-card p{position:relative;font-size:12px;line-height:1.9;max-width:290px;color:#b5c9b6;padding-bottom:37px}
.detail-button{width:auto;min-width:40px;height:38px;padding:0 13px;border-radius:22px;display:flex;align-items:center;gap:12px;font-size:22px;right:24px;bottom:20px;background:#bdd9bb13}
.detail-button:before{content:"探索方案";font-size:10px;letter-spacing:1px}
.detail-button:hover{transform:translateY(-2px);background:#bedcba30}
.carousel-dot{position:relative;min-height:7px}
.carousel-dot:before{content:"";position:absolute;inset:-14px -4px}
.service-grid{align-items:stretch}
.service-large{padding:0 0 38px}
.service-visual{height:300px;overflow:hidden;border-radius:35px 35px 0 0;background:#122b23;isolation:isolate}
.service-visual:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,#19352b,transparent 50%);z-index:1;pointer-events:none}
.service-visual img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:64% center;filter:saturate(.7);transform:scale(1.04);animation:scene-breathe 20s ease-in-out infinite alternate}
.service-large:hover .service-visual img{transform:scale(1.04)}
.service-large h3,.service-large>p{margin-inline:38px}
.service-large h3{margin-top:20px}
.visual-label{bottom:17px;z-index:3;color:#e1ead5;text-shadow:0 1px 8px #071512}
.scene-orbit{position:absolute;z-index:2;width:330px;height:105px;border:1px solid #cdebc636;border-radius:50%;left:50%;top:48%;transform:translate(-50%,-50%) rotate(-14deg);box-shadow:0 0 35px #c5e7b817}
.scene-particle{position:absolute;z-index:3;width:4px;height:4px;background:#e3efc5;border-radius:50%;box-shadow:0 0 12px #e3efc5;animation:particle-flow 12s ease-in-out infinite alternate}
.particle-one{left:22%;top:62%}.particle-two{left:76%;top:35%;animation-delay:-4s}.particle-three{left:53%;top:20%;animation-delay:-8s}
.service-stack{display:flex;flex-direction:column;gap:16px;justify-content:center}
.interaction-hint{font-size:10px;letter-spacing:2px;color:#97b59d;margin:0 8px 3px;display:flex;justify-content:space-between}
.service-stack .service-item{padding:0;overflow:hidden;flex:none;transition:background .5s,border-color .5s,box-shadow .5s}
.service-stack .service-item:hover{transform:none}
.service-stack .service-item.is-open{background:linear-gradient(125deg,#b5d3b428,#335d4426);border-color:#cee4bc66;box-shadow:0 18px 45px #0002,inset 0 1px #fff2}
.service-item h3{margin:0;font-size:25px}
.service-toggle{display:flex;width:100%;align-items:center;text-align:left;background:none;border:0;gap:19px;padding:28px;font-family:var(--serif);font-size:25px;letter-spacing:2px}
.service-toggle .service-number{position:static;font:10px -apple-system,BlinkMacSystemFont,sans-serif;letter-spacing:1px;color:#abc49d}
.expand-icon{display:grid;place-items:center;font:23px -apple-system,sans-serif;margin-left:auto;width:30px;height:30px;border:1px solid #c8dfb827;border-radius:50%;color:#c9dfbd;transition:transform .55s,background .55s}
.is-open .expand-icon{transform:rotate(45deg);background:#d0e6c415}
.service-answer{display:grid;grid-template-rows:0fr;visibility:hidden;opacity:0;transition:grid-template-rows .65s cubic-bezier(.16,1,.3,1),opacity .4s,visibility .65s}
.service-answer>div{overflow:hidden;min-height:0}
.is-open .service-answer{grid-template-rows:1fr;visibility:visible;opacity:1}
.service-stack .service-answer p{max-width:none;margin:0 30px 18px 61px;color:#b5c9af;line-height:1.9}
.service-tags{display:flex;flex-wrap:wrap;gap:8px}
.service-tags span{display:inline-flex;align-items:center;gap:7px;border:1px solid #c0d9b523;border-radius:20px;padding:7px 12px;background:#b3d2ab08;font-size:9px;letter-spacing:1px;color:#b0c7a7}
.service-tags span:before{content:"";width:3px;height:3px;background:#bcdaa7;border-radius:50%}
.service-answer .service-tags{margin:0 25px 28px 61px}
.stats>div{position:relative;overflow:hidden;transition:transform .5s,border-color .5s}
.stats>div:hover{transform:translateY(-5px);border-color:#d2e6c166}
.stats>div:after{content:"";position:absolute;bottom:0;left:25px;right:25px;height:1px;background:linear-gradient(90deg,transparent,#b9d2a799,transparent);transform:scaleX(.15);transition:transform 1.8s cubic-bezier(.16,1,.3,1)}
.stats.is-visible>div:after{transform:scaleX(1)}
.journey{margin:50px 0 55px}
.journey-tabs{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:20px}
.journey-tabs button{display:flex;text-align:left;align-items:center;gap:20px;position:relative;border:1px solid #c7ddbb33;border-radius:26px;padding:25px 27px;background:linear-gradient(140deg,#adc9ac13,#5374530b);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);color:#a9bfa3;transition:background .5s,border-color .5s,transform .5s;overflow:hidden}
.journey-tabs button:hover{transform:translateY(-4px)}
.journey-tabs button[aria-selected=true]{background:linear-gradient(130deg,#d1e2bf29,#93bc9820);border-color:#d6e6c572;color:#eff2df}
.step-number{font-family:var(--serif);font-size:31px;opacity:.7}
.journey-tabs button>span:nth-child(2){font-family:var(--serif);font-size:23px;letter-spacing:1px}
.journey-tabs small{display:block;font:8px -apple-system,BlinkMacSystemFont,sans-serif;letter-spacing:2px;margin-top:9px;color:#9eb294}
.step-arrow{margin-left:auto;font-size:17px;opacity:.5;transition:transform .5s,opacity .5s}
.journey-tabs button[aria-selected=true] .step-arrow{transform:rotate(45deg);opacity:1}
.journey-panel{display:grid;grid-template-columns:.75fr 1.6fr;align-items:center;gap:28px;position:relative;min-height:280px;border-radius:34px;border:1px solid #c9dfb83b;background:radial-gradient(ellipse at 20% 50%,#698e6830,transparent 70%),linear-gradient(130deg,#a8c89f10,#11342b66);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);box-shadow:0 20px 60px #0002;overflow:hidden;padding:30px 45px}
.journey-scene{position:relative;height:210px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:17px}
.journey-ring{position:absolute;inset:10px calc(50% - 95px);width:190px;height:190px;border-radius:50%;border:1px solid #bdd7ae4a;box-shadow:0 0 0 16px #d3e5b605,0 0 0 32px #d3e5b603;animation:orbit-turn 30s linear infinite}
.journey-ring:before,.journey-ring:after{content:"";position:absolute;top:12%;left:13%;width:5px;height:5px;background:#d7e9c6;border-radius:50%;box-shadow:0 0 20px #d3e8be}
.journey-ring:after{top:auto;left:auto;bottom:12%;right:13%;width:3px;height:3px}
#journey-symbol{font-family:var(--serif);font-size:57px;color:#d8e6c6;font-weight:300;z-index:1}
.journey-scene small{font-family:var(--serif);font-size:10px;letter-spacing:2px;color:#afc5a4}
.journey-copy{position:relative;padding-right:55px}
.journey-copy h3{font-family:var(--serif);font-size:30px;font-weight:400;letter-spacing:2px;margin:16px 0;color:#e1ebd1}
.journey-copy p{font-size:13px;line-height:2;color:#aec3a5;max-width:450px;margin:0 0 20px}
.journey-next{position:absolute;right:28px;bottom:26px;display:flex;align-items:center;gap:10px;border:0;background:none;font-size:10px;letter-spacing:1px;color:#c6dcba;padding:8px}
.journey-next span{font-size:20px;transition:transform .4s}
.journey-next:hover span{transform:translateX(5px)}
.contact-box{position:relative;isolation:isolate;overflow:hidden}
.contact-box:before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,#142e24e8,#132e24b0),url('./assets/cloud-island.jpg') 60% 45%/cover;opacity:.7;transition:opacity 1s}
.contact-box:hover:before{opacity:1}
.ambient-scene:not(.in-scene) img,.ambient-scene:not(.in-scene) .orbit,.ambient-scene:not(.in-scene) .journey-ring,.ambient-scene:not(.in-scene) .scene-particle{animation-play-state:paused}
@keyframes scene-breathe{from{transform:scale(1.04) translateY(0)}to{transform:scale(1.105) translateY(-5px)}}
@keyframes orbit-turn{from{transform:rotate(-22deg) scaleY(.84)}to{transform:rotate(338deg) scaleY(.84)}}
@keyframes signal-pulse{0%,100%{box-shadow:0 0 0 0 #b3edcd44}65%{box-shadow:0 0 0 7px #b3edcd00}}
@keyframes particle-flow{from{transform:translate(0,0);opacity:.4}to{transform:translate(28px,-14px);opacity:.9}}
@media(max-width:1000px){.journey-tabs{gap:12px}.journey-tabs button{padding:23px 18px;gap:13px}.journey-tabs button>span:nth-child(2){font-size:21px}.journey-panel{padding:30px 22px;gap:15px}.journey-copy{padding-right:20px}.service-toggle{padding:26px 22px;gap:15px}.service-stack .service-answer p{margin-left:51px}.service-answer .service-tags{margin-left:51px}}
@media(max-width:600px){.platform-art img.platform-landscape{mask-image:linear-gradient(transparent,#000 30%);opacity:.73}.platform-art #platform-logo{width:133px}.solution-card{min-height:413px;padding:25px}.card-top{height:206px}.solution-card p{font-size:13px}.service-visual{height:255px;border-radius:29px 29px 0 0}.service-large h3,.service-large>p{margin-inline:28px}.service-large{padding-bottom:31px}.service-stack{padding-top:10px;gap:13px}.service-stack .service-item{padding:0;border-radius:25px}.service-toggle{padding:25px 22px;font-size:23px}.service-answer .service-tags{margin-bottom:25px}.journey{margin:35px 0 35px}.journey-tabs{gap:8px;margin-bottom:16px}.journey-tabs button{padding:17px 8px;display:flex;flex-direction:column;align-items:center;gap:10px;text-align:center;border-radius:23px}.step-number{font-size:21px}.journey-tabs button>span:nth-child(2){font-size:17px;letter-spacing:0}.journey-tabs small{font-size:6px;letter-spacing:1px;margin-top:7px}.step-arrow{display:none}.journey-panel{grid-template-columns:1fr;gap:0;padding:20px 27px 65px;border-radius:29px;min-height:490px}.journey-scene{height:210px}.journey-copy{padding:14px 0 0}.journey-copy h3{font-size:27px;margin:14px 0}.journey-copy p{font-size:12px;min-height:72px}.journey-next{right:25px;bottom:20px}.journey-ring{width:170px;height:170px;inset:20px calc(50% - 85px)}}
@media(prefers-reduced-motion:reduce){.ambient-scene *{animation:none!important}.service-answer{transition:none}.solution-card:hover:before{transform:none}}