.about-page{padding:0 0 80px}.about-hero{position:relative;isolation:isolate;padding:clamp(56px,9vw,120px)0 clamp(64px,8vw,96px);border-bottom:1px solid var(--line)}.about-hero::before{content:"";position:absolute;inset:0;z-index:-1;pointer-events:none;background:radial-gradient(closest-side at 80% 34%,color-mix(in srgb,var(--gold) 15%,transparent),transparent)}.about-title{font:clamp(44px,8.2vw,104px)/1.2 var(--serif);letter-spacing:-.035em;margin:22px 0 0;max-width:11.5ch;text-wrap:balance}.about-title em{font-style:normal;color:var(--gold)}.about-sub{max-width:36ch;margin:28px 0 0;font-size:clamp(17px,1.9vw,21px);line-height:1.6;color:var(--muted);text-wrap:pretty}.about-cue{display:inline-flex;align-items:center;gap:10px;min-height:44px;margin-top:26px;font-size:12px;font-weight:700;letter-spacing:1.6px;text-transform:uppercase;color:var(--muted)}.about-cue span{display:inline-block;animation:about-bob 2.4s ease-in-out infinite}@keyframes about-bob{50%{transform:translateY(4px)}}.about-hero.has-photo{display:grid;grid-template-columns:minmax(0,1fr)min(440px,38vw);column-gap:clamp(32px,5vw,72px);align-items:center}.about-photo{margin:0}.about-photo img{display:block;width:100%;height:auto;border-radius:28px;box-shadow:0 0 0 1px var(--line),0 34px 70px -34px rgba(8,22,26,.55)}@media(max-width:690px),print{.about-hero.has-photo{display:block}.about-photo{display:none}}.about-chapters{position:sticky;top:calc(var(--hdr-h) + 10px);z-index:25;display:flex;justify-content:center;margin-top:-24px;pointer-events:none;transition:top .32s cubic-bezier(.2,.7,.2,1)}.about-chapters-track{position:relative;display:flex;gap:2px;max-width:100%;overflow-x:auto;padding:4px;border-radius:999px;pointer-events:auto;scrollbar-width:none;background:var(--hdr-bg);-webkit-backdrop-filter:var(--glass-blur);backdrop-filter:var(--glass-blur);box-shadow:inset 0 1px 0 var(--glass-hi),inset 0 0 0 1px var(--glass-lo),var(--glass-shadow)}.about-chapters-track::-webkit-scrollbar{display:none}.about-chapters a{flex:none;display:flex;align-items:center;min-height:40px;padding:0 16px;border-radius:999px;font-size:13px;font-weight:600;white-space:nowrap;color:var(--muted);transition:background-color .25s,color .25s}.about-chapters a:hover{color:var(--ink)}.about-chapters a[aria-current]{background:var(--navy);color:var(--on-navy)}.about-prose{max-width:var(--measure);margin:28px auto 0;counter-reset:chuong}.about-prose h2{counter-increment:chuong;margin-top:76px;scroll-margin-top:96px}.about-prose h2::before{content:"Chương " counter(chuong);display:block;margin-bottom:12px;font:700 11px/1 var(--sans);letter-spacing:2px;text-transform:uppercase;color:var(--gold)}.about-prose blockquote{position:relative;margin:34px 0;padding:26px 28px 26px 64px;border:0;border-radius:26px;background:color-mix(in srgb,var(--gold) 9%,var(--surface));font-style:normal;font-size:1.32em;line-height:1.4;color:var(--ink)}.about-prose blockquote::before{content:"\201C";position:absolute;left:22px;top:12px;font:64px/1 var(--serif);color:var(--gold)}.about-prose blockquote p{margin:0}.about-cards{margin:30px 0 34px}.about-cards ul{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;width:min(1040px,calc(100vw - 90px));position:relative;left:50%;transform:translateX(-50%)}.about-cards li{margin:0;padding:24px 24px 22px;border:1px solid var(--line);border-radius:24px;background:var(--surface);font-size:.84em;line-height:1.65}.about-cards li>strong:first-child{display:block;margin-bottom:12px;font:700 11px/1.3 var(--sans);letter-spacing:1.8px;text-transform:uppercase;color:var(--gold)}.about-cards li>strong:first-child a{text-decoration:none}.about-cards li>br:nth-child(2){display:none}.about-checks ul{list-style:none;margin:22px 0 0;padding:0;border:1px solid var(--line);border-radius:24px;background:var(--surface);overflow:hidden}.about-checks li{position:relative;margin:0;padding:16px 20px 16px 58px;font-size:.92em;line-height:1.55}.about-checks li+li{border-top:1px solid var(--line)}.about-checks li::before{content:"✓";position:absolute;left:18px;top:15px;display:grid;place-items:center;width:26px;height:26px;border-radius:50%;background:color-mix(in srgb,var(--gold) 15%,transparent);font:700 13px/1 var(--sans);color:var(--gold)}.about-prose>p:last-child{margin-top:44px;padding-top:18px;border-top:1px solid var(--line);font:14px/1.6 var(--sans);color:var(--muted)}.about-prose>p:last-child strong{font-weight:600}@media(max-width:820px){.about-cards ul{display:flex;gap:12px;width:auto;left:auto;transform:none;margin:0 -25px;padding:2px 25px 10px;overflow-x:auto;scroll-snap-type:x mandatory;scroll-padding-left:25px;scrollbar-width:none;overscroll-behavior-x:contain}.about-cards ul::-webkit-scrollbar{display:none}.about-cards li{flex:0 0 min(78%,340px);scroll-snap-align:start}}@media(max-width:690px){.about-hero{padding:40px 0 64px}.about-title{font-size:clamp(40px,12.4vw,60px)}.about-sub{margin-top:20px}.about-chapters a{padding:0 13px;font-size:12.5px}.about-prose h2{margin-top:60px}.about-prose blockquote{padding:20px 20px 20px 52px;font-size:1.2em}.about-prose blockquote::before{left:16px;top:8px;font-size:54px}.about-cards ul{margin:0 -16px;padding:2px 16px 10px;scroll-padding-left:16px}.about-cards li{flex-basis:82%;padding:20px}.about-checks li{padding:14px 16px 14px 52px}.about-checks li::before{left:14px;top:13px}}@media(prefers-reduced-motion:reduce){.about-cue span{animation:none}.about-chapters{transition:none}}@media print{.about-chapters,.about-cue{display:none}.about-cards ul{display:block;width:auto;left:auto;transform:none}}