.page-support__hero-section{background:linear-gradient(135deg, #08162B 0%, #113B7A 100%);padding:10px 0 0}
.page-support__hero-image-wrap{width:100%;max-width:1400px;margin:0 auto}
.page-support__hero-image{width:100%;height:auto;aspect-ratio:3/1;object-fit:cover;display:block;border-radius:0}
.page-support__hero-content{width:100%;max-width:1200px;margin:0 auto;padding:32px 20px 40px;text-align:center}
.page-support__hero-title{font-size:clamp(1.8rem, 3vw, 2.6rem);font-weight:800;line-height:1.2;letter-spacing:-0.01em;color:#F3F8FF;margin:0 0 16px;max-width:900px;margin-left:auto;margin-right:auto}
.page-support__hero-description{font-size:clamp(1rem, 1.5vw, 1.1rem);line-height:1.7;color:#AFC4E8;max-width:800px;margin:0 auto 28px}
.page-support__hero-cta{display:inline-block;background:linear-gradient(180deg, #2B73F6 0%, #1144A6 100%);border:1px solid #4FA8FF;color:#F3F8FF;font-size:1.05rem;font-weight:700;padding:14px 38px;border-radius:50px;text-decoration:none;transition:opacity .3s ease,transform .2s ease}
.page-support__hero-cta:hover{opacity:.9;transform:translateY(-2px)}
.page-support__intro-section{background:#08162B;padding:32px 0}
.page-support__intro-inner{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.page-support__intro-card{background:#10233F;border:1px solid #244D84;border-radius:16px;padding:28px 20px;display:flex;flex-direction:column;align-items:center;text-align:center;gap:14px;transition:box-shadow .3s ease,border-color .3s ease}
.page-support__intro-card:hover{box-shadow:0 0 20px rgba(79,168,255,.3);border-color:#4FA8FF}
.page-support__intro-logo{width:100%;max-width:240px;aspect-ratio:2/1;object-fit:contain;border-radius:12px}
.page-support__intro-text{font-size:1rem;line-height:1.5;color:#AFC4E8;margin:0}
.page-support__intro-btn{display:inline-block;background:linear-gradient(180deg, #2B73F6 0%, #1144A6 100%);border:1px solid #4FA8FF;color:#F3F8FF;font-size:.95rem;font-weight:700;padding:10px 28px;border-radius:50px;text-decoration:none;transition:opacity .3s}
.page-support__intro-btn:hover{opacity:.85}
.page-support__help-section{background:#08162B;padding:48px 0}
.page-support__help-inner{width:100%;max-width:1000px;margin:0 auto;padding:0 20px}
.page-support__help-title{text-align:center;color:#F3F8FF;font-size:clamp(1.6rem,2.5vw,2.2rem);font-weight:800;margin:0 0 12px;letter-spacing:-0.01em}
.page-support__help-intro{text-align:center;color:#AFC4E8;font-size:1rem;line-height:1.6;max-width:800px;margin:0 auto 36px}
.page-support__faq-list{display:flex;flex-direction:column;gap:12px}
.page-support__faq-item{background:#10233F;border:1px solid #244D84;border-radius:12px;overflow:hidden;transition:border-color .3s}
.page-support__faq-item[open]{border-color:#4FA8FF}
.page-support__faq-question{list-style:none;cursor:pointer;padding:18px 24px;color:#F3F8FF;font-size:1.05rem;font-weight:600;display:flex;justify-content:space-between;align-items:center;gap:12px;transition:color .3s}
.page-support__faq-question::-webkit-details-marker{display:none}
.page-support__faq-question::after{content:'+';flex-shrink:0;font-size:1.4rem;font-weight:400;color:#4FA8FF;transition:transform .3s}
.page-support__faq-item[open] .page-support__faq-question::after{transform:rotate(45deg)}
.page-support__faq-question:hover,.page-support__faq-item[open] .page-support__faq-question{color:#4FA8FF}
.page-support__faq-answer{padding:0 24px 20px;color:#AFC4E8;font-size:1rem;line-height:1.7;border-top:1px solid #1B3357;margin:0 24px 16px;padding-top:16px;padding-left:0;padding-right:0;margin-left:24px;margin-right:24px}
.page-support__faq-answer p{margin:0 0 12px}
.page-support__faq-link{color:#F2C14E;text-decoration:none;font-weight:600;display:inline-block;margin-top:8px;border-bottom:1px solid transparent;transition:border-color .3s}
.page-support__faq-link:hover{border-bottom-color:#F2C14E}
.page-support__promo-link{display:inline-block;background:linear-gradient(180deg, #2B73F6 0%, #1144A6 100%);border:1px solid #4FA8FF;color:#F3F8FF;font-weight:700;padding:8px 24px;border-radius:6px;text-decoration:none;margin-top:8px;transition:opacity .3s}
.page-support__promo-link:hover{opacity:.85}
.page-support__contact-section{background:#08162B;padding:48px 0}
.page-support__contact-inner{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center}
.page-support__contact-image-block{width:100%}
.page-support__contact-image{width:100%;aspect-ratio:2/1;object-fit:cover;border-radius:16px;border:1px solid #244D84;box-shadow:0 8px 32px rgba(0,0,0,.35)}
.page-support__contact-content{width:100%}
.page-support__contact-title{color:#F3F8FF;font-size:clamp(1.5rem,2.5vw,2rem);font-weight:800;margin:0 0 16px;line-height:1.3}
.page-support__contact-text{color:#AFC4E8;font-size:1rem;line-height:1.7;margin:0 0 20px}
.page-support__contact-info{background:#10233F;border:1px solid #244D84;border-radius:12px;padding:16px 20px;margin-bottom:24px}
.page-support__contact-item{color:#AFC4E8;font-size:.95rem;line-height:1.6;margin:0 0 8px}
.page-support__contact-item:last-child{margin-bottom:0}
.page-support__contact-item strong{color:#F2C14E;font-weight:600}
.page-support__contact-cta{display:inline-block;background:linear-gradient(180deg, #2B73F6 0%, #1144A6 100%);border:1px solid #4FA8FF;color:#F3F8FF;font-size:1.05rem;font-weight:700;padding:12px 32px;border-radius:50px;text-decoration:none;transition:opacity .3s}
.page-support__contact-cta:hover{opacity:.85}
.page-support__baohanh-section{background:#08162B;padding:0 0 48px}
.page-support__baohanh-inner{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.page-support__baohanh-title{color:#F3F8FF;font-size:clamp(1.5rem,2.5vw,2rem);font-weight:800;text-align:center;margin:0 0 36px}
.page-support__baohanh-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.page-support__baohanh-card{background:#10233F;border:1px solid #244D84;border-radius:16px;padding:24px;transition:border-color .3s}
.page-support__baohanh-card:hover{border-color:#4FA8FF}
.page-support__baohanh-card-title{color:#F3F8FF;font-size:1.1rem;font-weight:700;margin:0 0 12px}
.page-support__baohanh-card-text{color:#AFC4E8;font-size:.95rem;line-height:1.6;margin:0 0 16px}
.page-support__baohanh-link{color:#F2C14E;text-decoration:none;font-weight:600;border-bottom:1px solid transparent;transition:border-color .3s}
.page-support__baohanh-link:hover{border-bottom-color:#F2C14E}
@media (max-width: 1024px){.page-support__intro-inner{grid-template-columns:repeat(2,1fr)}
.page-support__contact-inner{grid-template-columns:1fr;gap:24px}
.page-support__contact-content{display:flex;flex-direction:column;align-items:flex-start}
.page-support__baohanh-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width: 768px){.page-support__hero-section{padding-top:8px}
.page-support__hero-image{aspect-ratio:2/1}
.page-support__hero-content{padding:20px 16px 28px}
.page-support__hero-cta,.page-support__intro-btn,.page-support__contact-cta,.page-support__promo-link{max-width:100%;box-sizing:border-box;white-space:normal;word-wrap:break-word;width:auto}
.page-support__intro-inner{grid-template-columns:1fr;padding:0 16px}
.page-support__intro-card{width:100%}
.page-support__help-section{padding:36px 0}
.page-support__help-inner{padding:0 16px}
.page-support__faq-answer{padding:12px 0;margin:0 16px}
.page-support__contact-section{padding:36px 0}
.page-support__contact-inner{padding:0 16px;grid-template-columns:1fr;gap:20px}
.page-support__contact-info{padding:14px 16px}
.page-support__baohanh-section{padding-bottom:36px}
.page-support__baohanh-inner{padding:0 16px}
.page-support__baohanh-grid{grid-template-columns:1fr;gap:16px}
.page-support img{max-width:100%;height:auto}}
@media (max-width: 480px){.page-support__hero-title{font-size:1.5rem}
.page-support__hero-description{font-size:.95rem}
.page-support__help-title{font-size:1.4rem}
.page-support__faq-question{font-size:.95rem;padding:16px 16px}
.page-support__baohanh-card-title{font-size:1rem}}