#pc-hero-section{padding:3rem 0 4.5rem;background:radial-gradient(100% 70% at 100% 0,rgba(42,171,238,.16) 0,transparent 50%),radial-gradient(80% 50% at 0 100%,rgba(42,171,238,.08) 0,transparent 45%),linear-gradient(180deg,#dff2fc 0,#f0f9ff 45%,#fff 100%);scroll-margin-top:5rem}
#pc-hero-section .pc-hero-content{position:relative;z-index:1}
#pc-hero-section .pc-hero-content::before{content:"";position:absolute;left:-2rem;top:-1rem;right:40%;bottom:2rem;z-index:-1;border-radius:24px;background:radial-gradient(ellipse 80% 60% at 20% 30%,rgba(42,171,238,.2) 0,transparent 70%);filter:blur(2px);pointer-events:none;opacity:.9}
#pc-hero-section .pc-hero-grid{display:grid;grid-template-columns:1.02fr 0.98fr;gap:52px;align-items:center}
#pc-hero-section .pc-hero-eyebrow{display:inline-block;font-size:.8125rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--tg-blue,#2aabee);background:rgba(255,255,255,.7);border:1px solid rgba(42,171,238,.35);border-radius:999px;padding:7px 16px;margin:0 0 1rem;box-shadow:0 1px 0 rgba(255,255,255,.8) inset}
#pc-hero-section .pc-hero-title{font-size:clamp(1.85rem,4.2vw,2.85rem);font-weight:800;line-height:1.12;color:var(--tg-dark,#17212b);letter-spacing:-.03em}
#pc-hero-section .pc-hero-lead{margin:18px 0 0;font-size:1.0625rem;line-height:1.75;color:rgba(23,33,43,.78);max-width:36em}
#pc-hero-section .pc-hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 0}
#pc-hero-section .pc-hero-bullets{margin:2rem 0 0;padding:1.1rem 1.15rem;list-style:none;display:grid;gap:12px;max-width:32em;border-radius:14px;border:1px solid rgba(23,33,43,.08);background:rgba(255,255,255,.5);backdrop-filter:blur(6px)}
#pc-hero-section .pc-hero-bullets li{position:relative;padding-left:1.3rem;font-size:.9375rem;color:rgba(23,33,43,.75);line-height:1.55}
#pc-hero-section .pc-hero-bullets li::before{content:"";position:absolute;left:0;top:.55rem;width:6px;height:6px;border-radius:50%;background:var(--tg-blue,#2aabee);box-shadow:0 0 0 3px rgba(42,171,238,.25)}
#pc-hero-section .pc-hero-picture{border-radius:22px;overflow:hidden;border:1px solid rgba(23,33,43,.1);box-shadow:0 28px 56px -24px rgba(12,32,55,.3),0 0 0 1px rgba(255,255,255,.4) inset;background:var(--tg-dark,#17212b)}
#pc-hero-section .pc-hero-picture img{display:block;width:100%;height:auto;vertical-align:top;aspect-ratio:3/2;object-fit:cover}
#pc-hero-section .pc-hero-media{position:relative}
#pc-hero-section .pc-hero-media::after{content:"";position:absolute;inset:-6% -10% 38% 35%;z-index:-1;border-radius:50%;background:radial-gradient(ellipse at center,rgba(42,171,238,.4) 0,transparent 65%);filter:blur(20px);pointer-events:none;opacity:.85}


#pc-platform-section{background:linear-gradient(180deg,#fff 0,#f8fbff 100%)}
#pc-platform-section .section-title{color:var(--tg-dark,#17212b)}
#pc-platform-section .section-desc{color:rgba(23,33,43,.72);max-width:42em;margin-left:auto;margin-right:auto}
#pc-platform-section .pc-install-panel{display:grid;grid-template-columns:1fr minmax(240px,320px);gap:28px 36px;align-items:stretch}
#pc-platform-section .pc-install-track{list-style:none;margin:0;padding:0;border-radius:20px;border:1px solid rgba(23,33,43,.1);background:linear-gradient(165deg,#fff 0,#f0f6fd 100%);box-shadow:0 12px 40px -24px rgba(8,20,40,.3);padding:1.5rem 1.35rem 1.4rem 1.25rem;position:relative;overflow:hidden}
#pc-platform-section .pc-install-track::before{content:"";position:absolute;left:0;right:0;top:0;height:3px;background:linear-gradient(90deg,transparent 0,rgba(42,171,238,.85) 30%,rgba(30,138,200,.9) 50%,rgba(42,171,238,.85) 70%,transparent 100%)}
#pc-platform-section .pc-install-track__step{display:grid;grid-template-columns:52px 1fr;gap:16px;align-items:flex-start;padding:1.1rem 0;position:relative}
#pc-platform-section .pc-install-track__step:not(:last-child){border-bottom:1px solid rgba(23,33,43,.08)}
#pc-platform-section .pc-install-track__badge{flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:14px;font-weight:800;font-size:1.05rem;color:var(--tg-blue,#2aabee);background:linear-gradient(145deg,rgba(42,171,238,.2) 0,rgba(42,171,238,.08) 100%);border:1px solid rgba(42,171,238,.32);box-shadow:0 2px 10px rgba(42,171,238,.15)}
#pc-platform-section .pc-install-track__title{margin:0 0 6px;font-size:1.12rem;font-weight:700;color:var(--tg-dark,#17212b)}
#pc-platform-section .pc-install-track__text{margin:0;font-size:.93rem;line-height:1.68;color:rgba(23,33,43,.75)}
#pc-platform-section .pc-install-aside{border-radius:20px;padding:1.35rem 1.25rem;border:1px solid rgba(42,171,238,.2);background:radial-gradient(120% 80% at 0 0,rgba(42,171,238,.14) 0,transparent 55%),#fff;box-shadow:0 4px 24px -14px rgba(42,171,238,.25);align-self:stretch}
#pc-platform-section .pc-install-aside__label{margin:0 0 1rem;font-size:.75rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--tg-blue,#2aabee)}
#pc-platform-section .pc-install-checklist{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}
#pc-platform-section .pc-install-checklist li{position:relative;padding-left:1.25rem;font-size:.9rem;line-height:1.65;color:rgba(23,33,43,.75)}
#pc-platform-section .pc-install-checklist li::before{content:"";position:absolute;left:0;top:.4rem;width:7px;height:7px;border-radius:2px;background:var(--tg-blue,#2aabee);box-shadow:0 0 0 2px rgba(42,171,238,.2)}
#pc-features-section{background:linear-gradient(180deg,#0a141f 0,#13212f 40%,#1a2c3d 100%);color:#e6edf3;position:relative;overflow:hidden}
#pc-features-section::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(42,171,238,.12) 1px,transparent 1px);background-size:24px 24px;opacity:.35;pointer-events:none}
#pc-features-section .container{position:relative;z-index:1}
#pc-features-section .section-title{color:#f6fbfe;text-shadow:0 1px 0 rgba(0,0,0,.2)}
#pc-features-section .section-desc{color:rgba(230,237,243,.72);max-width:42em;margin-left:auto;margin-right:auto}
#pc-features-section .pc-feature-showcase{display:grid;grid-template-columns:1fr 0.9fr;gap:44px;align-items:center}
#pc-features-section .pc-feature-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:24px}
#pc-features-section .pc-feature-list li{display:grid;grid-template-columns:48px 1fr;gap:18px;align-items:flex-start}
#pc-features-section .pc-feature-icon{display:flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:14px;background:rgba(42,171,238,.12);color:var(--tg-blue,#2aabee);border:1px solid rgba(42,171,238,.25);flex-shrink:0;box-shadow:0 0 0 1px rgba(0,0,0,.1) inset}
#pc-features-section .pc-feature-title{margin:0 0 7px;font-size:1.08rem;font-weight:700}
#pc-features-section .pc-feature-list p{margin:0;font-size:.92rem;line-height:1.68;color:rgba(230,237,243,.78)}
#pc-features-section .pc-feature-figure{border-radius:18px;overflow:hidden;border:1px solid rgba(255,255,255,.12);box-shadow:0 28px 60px -22px rgba(0,0,0,.5);background:#0b1520}
#pc-features-section .pc-feature-figure img{display:block;width:100%;height:auto;aspect-ratio:5/3.6;object-fit:cover}


#pc-sync-section{background:linear-gradient(180deg,#e4f2fb 0,var(--tg-light-blue,#eef7fd) 50%,#f7fbff 100%)}
#pc-sync-section .section-title{color:var(--tg-dark,#17212b)}
#pc-sync-section .section-desc{color:rgba(23,33,43,.72);max-width:44em;margin-left:auto;margin-right:auto}
#pc-sync-section .pc-sync-layout{display:grid;grid-template-columns:0.95fr 1.05fr;gap:44px;align-items:stretch}
#pc-sync-section .pc-sync-visual{border-radius:20px;overflow:hidden;border:1px solid rgba(23,33,43,.1);box-shadow:0 18px 44px -22px rgba(15,50,80,.25);align-self:center}
#pc-sync-section .pc-sync-visual img{display:block;width:100%;height:auto;aspect-ratio:13/9;object-fit:cover}
#pc-sync-section .pc-sync-steps{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:0}
#pc-sync-section .pc-sync-steps li{display:grid;grid-template-columns:52px 1fr;gap:16px;align-items:flex-start;position:relative;padding-bottom:1.4rem}
#pc-sync-section .pc-sync-steps li:not(:last-child)::after{content:"";position:absolute;left:25px;top:52px;bottom:0;width:2px;background:linear-gradient(180deg,rgba(42,171,238,.5) 0,rgba(42,171,238,.12) 100%)}
#pc-sync-section .pc-sync-index{display:inline-flex;align-items:center;justify-content:center;width:52px;height:52px;border-radius:16px;background:#fff;border:2px solid rgba(42,171,238,.5);color:var(--tg-blue,#2aabee);font-weight:800;font-size:1.1rem;box-shadow:0 4px 16px rgba(42,171,238,.2);z-index:1;position:relative}
#pc-sync-section .pc-sync-steps h3{margin:0 0 6px;font-size:1.08rem;font-weight:700;color:var(--tg-dark,#17212b)}
#pc-sync-section .pc-sync-steps p{margin:0;font-size:.93rem;line-height:1.68;color:rgba(23,33,43,.72)}


#pc-safety-section{background:#fff}
#pc-safety-section .section-title{color:var(--tg-dark,#17212b)}
#pc-safety-section .section-desc{color:rgba(23,33,43,.72);max-width:40em;margin-left:auto;margin-right:auto}
#pc-safety-section .pc-safety-grid{display:grid;grid-template-columns:1fr 1fr 0.95fr;gap:22px;align-items:stretch}
#pc-safety-section .pc-safety-block{padding:1.4rem 1.35rem;border-radius:18px;border:1px solid rgba(23,33,43,.1);background:linear-gradient(160deg,#fafcff 0,#f0f6fd 100%);box-shadow:0 4px 20px -12px rgba(8,20,50,.12)}
#pc-safety-section .pc-safety-block h3{margin:0 0 11px;font-size:1.1rem;font-weight:700;color:var(--tg-dark,#17212b);display:flex;align-items:center;gap:8px}
#pc-safety-section .pc-safety-block h3::before{content:"";width:6px;height:1.1em;border-radius:3px;background:var(--tg-blue,#2aabee);flex-shrink:0}
#pc-safety-section .pc-safety-block p{margin:0;font-size:.93rem;line-height:1.68;color:rgba(23,33,43,.72)}
#pc-safety-section .pc-safety-poster{border-radius:18px;overflow:hidden;border:1px solid rgba(23,33,43,.1);min-height:100%;align-self:stretch;box-shadow:0 8px 28px -14px rgba(8,20,50,.2)}
#pc-safety-section .pc-safety-poster img{display:block;width:100%;height:100%;min-height:220px;object-fit:cover}


#pc-faq-section{background:linear-gradient(180deg,#eceff2 0,#f8fafc 50%,#fff 100%);position:relative;overflow:hidden}
#pc-faq-section .section-title{color:var(--tg-dark,#17212b)}
#pc-faq-section .section-desc{color:rgba(23,33,43,.72);max-width:42em;margin-left:auto;margin-right:auto}
#pc-faq-section .section-body{max-width:800px;margin-left:auto;margin-right:auto}
#pc-faq-section .faq-wrap{max-width:800px;margin:0 auto;counter-reset:faq-num;position:relative;z-index:1}
#pc-faq-section .faq-item{border-radius:12px;margin-bottom:10px;background:#fff;border:1px solid #e0e8f0;overflow:hidden;transition:border-color .3s,box-shadow .3s;counter-increment:faq-num}
#pc-faq-section .faq-item:last-child{margin-bottom:0}
#pc-faq-section .faq-item:hover{border-color:rgba(42,171,238,.3);box-shadow:0 2px 12px rgba(42,171,238,.06)}
#pc-faq-section .faq-item[open]{border-color:rgba(42,171,238,.35);box-shadow:0 4px 20px rgba(42,171,238,.08)}
#pc-faq-section .faq-item summary{display:flex;align-items:center;padding:20px 24px;cursor:pointer;gap:14px;list-style:none;-webkit-user-select:none;user-select:none}
#pc-faq-section .faq-item summary::-webkit-details-marker{display:none}
#pc-faq-section .faq-item summary::marker{display:none;content:''}
#pc-faq-section .faq-num{min-width:32px;height:32px;border-radius:8px;background:rgba(42,171,238,.08);display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:.75rem;font-weight:700;color:#2aabee;letter-spacing:.02em;transition:background .3s,color .3s}
#pc-faq-section .faq-num::before{content:counter(faq-num,decimal-leading-zero)}
#pc-faq-section .faq-item[open] .faq-num{background:#2aabee;color:#fff}
#pc-faq-section .faq-q-text{font-size:.93rem;font-weight:600;color:#1a2530;line-height:1.5;flex:1;margin:0;transition:color .2s}
#pc-faq-section .faq-item[open] .faq-q-text{color:#2aabee}
#pc-faq-section .faq-toggle{width:22px;height:22px;min-width:22px;display:flex;align-items:center;justify-content:center;flex-shrink:0;position:relative}
#pc-faq-section .faq-toggle::before,#pc-faq-section .faq-toggle::after{content:'';position:absolute;background:#b0bcc8;border-radius:1.5px;transition:transform .3s ease,opacity .25s ease,background .3s}
#pc-faq-section .faq-toggle::before{width:13px;height:2px}
#pc-faq-section .faq-toggle::after{width:2px;height:13px}
#pc-faq-section .faq-item[open] .faq-toggle::after{transform:rotate(90deg);opacity:0}
#pc-faq-section .faq-item[open] .faq-toggle::before{background:#2aabee}
#pc-faq-section .faq-answer{padding:0 24px 22px 70px}
#pc-faq-section .faq-a-text{font-size:.86rem;color:#5f6f7e;line-height:1.85;animation:faq-in .3s ease}
#pc-faq-section .faq-a-text strong{color:#3a4a58}
@keyframes faq-in{from{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:translateY(0)}}
#pc-faq-section .pc-bottom-cta{margin-top:2.75rem;padding:1.9rem 1.5rem;border-radius:18px;text-align:center;background:radial-gradient(100% 120% at 50% 0,rgba(42,171,238,.18) 0,transparent 50%),#17212b;color:#e6edf3;border:1px solid rgba(42,171,238,.25);box-shadow:0 20px 50px -28px rgba(0,0,0,.4)}
#pc-faq-section .pc-bottom-cta p{margin:0 0 1.1rem;font-size:1.08rem;max-width:32em;margin-left:auto;margin-right:auto}
@media (max-width:768px){
    #pc-hero-section{padding:1.25rem 0 3rem}
    #pc-hero-section .pc-hero-grid{grid-template-columns:1fr;gap:1.75rem}
    #pc-hero-section .pc-hero-content::before{left:-.5rem;right:20%;bottom:0}
    #pc-hero-section .pc-hero-cta{flex-direction:column;align-items:stretch}
    #pc-platform-section .pc-install-panel{grid-template-columns:1fr;gap:1.25rem}
    #pc-platform-section .pc-install-track{padding:1.2rem 1.1rem 1.1rem}
    #pc-platform-section .pc-install-track__step{grid-template-columns:44px 1fr;gap:12px}
    #pc-platform-section .pc-install-track__badge{width:44px;height:44px;font-size:1rem}
    #pc-features-section .pc-feature-showcase{grid-template-columns:1fr;gap:1.75rem}
    #pc-features-section .pc-feature-figure{order:-1}
    #pc-sync-section .pc-sync-layout{grid-template-columns:1fr;gap:1.5rem}
    #pc-sync-section .pc-sync-steps li:not(:last-child)::after{left:25px}
    #pc-safety-section .pc-safety-grid{grid-template-columns:1fr}
    #pc-safety-section .pc-safety-poster{min-height:200px;order:-1}
    #pc-faq-section .faq-item summary{padding:16px 18px;gap:12px}
    #pc-faq-section .faq-answer{padding:0 18px 18px 62px}
    #pc-faq-section .faq-q-text{font-size:.88rem}
    #pc-faq-section .faq-num{min-width:28px;height:28px;font-size:.7rem}
}
@media (max-width:480px){
    #pc-faq-section .faq-answer{padding:0 18px 18px 18px}
}