.about-hero{position:relative;overflow:hidden;padding:96px 0 40px;border-bottom:1px solid #f3f4f6;background-image:url(../images/about/banner.webp);background-size:cover;background-position:center;background-repeat:no-repeat}.about-hero-inner{position:relative;z-index:1;text-align:center;max-width:640px;margin:0 auto}.about-hero-title{font-size:clamp(26px,5vw,36px);font-weight:800;color:var(--text-primary);letter-spacing:-.02em;margin-bottom:12px}.about-hero-sub{font-size:16px;color:var(--text-tertiary);line-height:1.6}.about-brand{padding:2px 0 56px;background:var(--bg-primary)}.about-tabs-nav{display:flex;flex-wrap:wrap;gap:4px 8px;justify-content:center;margin-bottom:28px;border-bottom:1px solid #f3f4f6;padding-bottom:0}.about-tab-btn{font-family:var(--font-cn);font-size:14px;font-weight:500;color:var(--text-secondary);padding:12px 14px 14px;background:0 0;border:0;border-bottom:3px solid transparent;margin-bottom:-1px;cursor:pointer;transition:color .2s,border-color .2s;border-radius:0}.about-tab-btn.active,.about-tab-btn:hover{color:var(--primary, #3a78ff)}.about-tab-btn.active{font-weight:700;position:relative}.about-tab-btn.active::after{content:"";position:absolute;bottom:-2px;left:50%;transform:translateX(-50%);width:24px;height:4px;background-color:var(--primary, #3a78ff);border-radius:2px}.about-tab-panels{max-width:720px;margin:0 auto;background:linear-gradient(180deg,#fafbfc 0%,var(--gray-50) 100%);border:1px solid rgba(0,0,0,.06);border-radius:var(--radius-lg);padding:24px 22px;min-height:140px;box-shadow:0 8px 32px rgba(15,23,42,.06),inset 0 1px 0 rgba(255,255,255,.95)}.about-tab-panel{display:none;font-size:16px;line-height:1.85;color:var(--text-secondary)}.about-tab-panel.active{display:block}.about-tab-panel p{margin:0}.about-contact{padding:64px 0;background:#f9fafb}@media screen and (max-width:600px){.about-contact{background-color:transparent;padding-top:16px}}.about-contact-card{max-width:640px;margin:0 auto;background:linear-gradient(170deg,#8ebbfe5e 0,#fff 70%);backdrop-filter:blur(6px);border-radius:20px;padding:24px 40px 48px;text-align:center;box-shadow:0 2px 20px rgba(6,38,116,.04),inset 0 1px 0 rgba(255,255,255,.95);border:1px solid rgba(255,255,255,.1)}.about-contact-title{font-size:32px;font-weight:800;color:var(--text-primary);margin-bottom:12px;letter-spacing:-.02em}.about-contact-desc{font-size:15px;color:var(--text-secondary);line-height:1.7;margin-bottom:24px;max-width:480px;margin-left:auto;margin-right:auto}.contact-tg-row{display:flex;align-items:center;justify-content:center;gap:12px;margin-bottom:24px}.contact-tg-badge{display:inline-flex;align-items:center;font-size:12px;font-weight:700;color:#2563eb;background:#fff;padding:4px 12px;border-radius:999px;line-height:1.6}.contact-tg-handle{font-size:16px;font-weight:700;color:var(--text-primary)}.btn-contact-tg,.contact-tg-copy{display:inline-flex;align-items:center;justify-content:center}.contact-tg-copy{width:32px;height:32px;border-radius:8px;border:1px solid var(--gray-200, #e5e7eb);background:var(--bg-primary, #fff);color:var(--text-tertiary, #9ca3af);cursor:pointer;transition:all .2s}.contact-tg-copy:hover{border-color:var(--primary, #3a78ff);color:var(--primary, #3a78ff);background:rgba(58,120,255,.04)}.contact-tg-copy .check-icon{display:none;color:#22c55e}.contact-tg-copy.copied .copy-icon{display:none}.contact-tg-copy.copied .check-icon{display:block}.contact-tg-copy.copied{border-color:#22c55e;background:rgba(34,197,94,.06)}.btn-contact-tg{gap:10px;background:#3eb5ed;color:#fff;font-size:16px;font-weight:700;padding:14px 28px;border-radius:12px;transition:all .3s var(--ease-spring);box-shadow:0 8px 22px rgba(71,188,245,.38),inset 0 1px 0 rgba(255,255,255,.22);text-decoration:none}.btn-contact-tg:hover{background:#32a5db;transform:translateY(-2px);box-shadow:0 12px 28px rgba(71,188,245,.45),inset 0 1px 0 rgba(255,255,255,.22);color:#fff}@media (max-width:640px){.about-contact-card{padding:40px 24px}}@media (max-width:480px){.about-tabs-nav{justify-content:center;overflow-x:auto;flex-wrap:nowrap;-webkit-overflow-scrolling:touch;padding-bottom:2px}.about-tab-btn{flex-shrink:0;padding-left:10px;padding-right:10px}.about-tab-panels{padding:20px 16px}}