/* Trang pháp lý · theo BRANDBOOK bản 2 (token mục 26, chữ mục 10, kính mục 12) */
:root{
  --trang:#fff; --xam:#f5f5f7; --muc:#1d1d1f; --muc2:#6e6e73; --muc3:#86868b; --vien:#d2d2d7;
  --xanh:#0071e3; --xanh-sang:#2997ff; --lien:#0066cc;
  --den:#000; --den2:#161617; --den3:#1d1d1f;
  --f:"SF Pro Display","SF Pro Text",-apple-system,BlinkMacSystemFont,"Inter","Segoe UI",system-ui,sans-serif;
  --lo-xo:cubic-bezier(.34,1.56,.64,1);
  --muot:cubic-bezier(.16,1,.3,1);
  --le:clamp(20px,5vw,44px);
  --rong:1040px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:88px;background:var(--den);overflow-x:clip}
body{margin:0;background:var(--trang);color:var(--muc);font:400 17px/1.47 var(--f);letter-spacing:-.022em;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;overflow-x:clip}
h1,h2,p{margin:0}
a{color:inherit;text-decoration:none}
:focus-visible{outline:3px solid var(--xanh-sang);outline-offset:3px;border-radius:12px}
.khung{width:min(100% - 2*var(--le),var(--rong));margin-inline:auto}

/* Kính (chép từ index.html) */
.lg{
  --kinh:rgba(255,255,255,.14); --mo:10px; --bao:1.8;
  position:relative;isolation:isolate;border-radius:999px;background:var(--kinh);
  -webkit-backdrop-filter:blur(var(--mo)) saturate(var(--bao));backdrop-filter:blur(var(--mo)) saturate(var(--bao));
  box-shadow:inset 0 0 0 .5px rgba(255,255,255,.28),inset 1.5px 1.5px 1px -1px rgba(255,255,255,.95),inset -1px -1.5px 1px -1px rgba(255,255,255,.45),inset 0 -10px 18px -14px rgba(255,255,255,.35),0 10px 32px -14px rgba(0,0,0,.45);
  transition:transform .55s var(--lo-xo),background-color .35s,color .35s,box-shadow .35s;
  -webkit-tap-highlight-color:transparent;
}
.lg::before{content:"";position:absolute;inset:0;z-index:1;border-radius:inherit;padding:1px;pointer-events:none;background:linear-gradient(135deg,rgba(255,255,255,.9),rgba(255,255,255,.18) 28%,rgba(255,255,255,0) 50%,rgba(255,255,255,.1) 72%,rgba(255,255,255,.55));-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude}
.lg::after{content:"";position:absolute;inset:0;z-index:0;border-radius:inherit;pointer-events:none;background:radial-gradient(140px circle at var(--mx,50%) var(--my,-60%),rgba(255,255,255,.42),transparent 70%);opacity:var(--soi,0);transition:opacity .35s}
.lg:hover{--soi:1}
.lg>*{position:relative;z-index:2}
.lg.bop{transform:scale(1.06,.94)}
.dh.lg.bop{transform:translateX(-50%) scale(1.06,.94)}
.lg-xanh{--kinh:rgba(0,113,227,.86);color:#fff}
.lg-xanh:hover{--kinh:rgba(0,119,237,.92)}
@media (prefers-reduced-transparency:reduce){.lg{--kinh:rgba(40,40,44,.94)!important;-webkit-backdrop-filter:none!important;backdrop-filter:none!important}.dh.tren-sang{--kinh:rgba(255,255,255,.97)!important}.lg-xanh{--kinh:var(--xanh)!important}}

/* Thanh điều hướng */
.nut{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 24px;border-radius:999px;font-weight:600;font-size:17px;letter-spacing:-.01em;white-space:nowrap}
.mep-tren{position:fixed;inset:0 0 auto;height:92px;z-index:40;pointer-events:none;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);-webkit-mask:linear-gradient(#000 30%,transparent);mask:linear-gradient(#000 30%,transparent)}
.dh{position:fixed;z-index:50;top:14px;left:50%;transform:translateX(-50%);display:flex;align-items:center;gap:6px;height:52px;padding:0 6px 0 20px;color:#f5f5f7;transition:transform .55s var(--lo-xo),background-color .35s,color .35s,box-shadow .35s}
.dh .logo{font-weight:800;font-size:17px;letter-spacing:-.02em;white-space:nowrap}
.dh .logo b{font-weight:800;background:linear-gradient(90deg,#5cc8ff,#9f8cff);-webkit-background-clip:text;background-clip:text;color:transparent}
.dh .nut{min-height:40px;padding:0 18px;font-size:15px;margin-left:14px}
.dh.tren-sang{--kinh:rgba(255,255,255,.62);color:var(--muc);box-shadow:inset 0 0 0 .5px rgba(0,0,0,.08),inset 1.5px 1.5px 1px -1px #fff,0 10px 34px -14px rgba(0,0,0,.25)}

/* Phần đầu nền đen */
.dau{background:var(--den);color:#f5f5f7;padding:clamp(128px,15vw,184px) 0 clamp(56px,7vw,88px)}
.nho-tren{font-weight:600;font-size:clamp(17px,1.5vw,21px);line-height:1.2;letter-spacing:.004em;color:var(--muc3);margin-bottom:14px}
.dau h1{font-weight:700;font-size:clamp(36px,4.6vw,52px);line-height:1.1;letter-spacing:-.018em;text-wrap:balance}
.dau h1 .mo{color:#6e6e73}
.cap-nhat{margin-top:18px;font-size:15px;font-weight:500;letter-spacing:0;color:#a1a1a6}
.chuyen{display:flex;flex-wrap:wrap;gap:8px;margin-top:clamp(34px,4vw,44px)}
.chuyen a{display:inline-flex;align-items:center;min-height:40px;padding:0 16px;border-radius:999px;background:var(--den3);color:#a1a1a6;font-size:15px;font-weight:500;letter-spacing:-.01em;transition:color .2s,background-color .2s}
.chuyen a:hover{color:#f5f5f7}
.chuyen a[aria-current=page]{background:#f5f5f7;color:var(--muc);font-weight:600}

/* Nội dung nền trắng */
.noi-dung{padding-block:clamp(72px,9vw,120px) clamp(96px,13vw,168px)}
.noi-dung h2{font-weight:700;font-size:clamp(26px,2.6vw,34px);line-height:1.12;letter-spacing:-.018em;text-wrap:balance;margin:clamp(44px,5vw,56px) 0 12px}
.noi-dung h2:first-child{margin-top:0}
.noi-dung p{max-width:40em;text-wrap:pretty;margin-bottom:16px}
.noi-dung strong{font-weight:600}
.noi-dung a{color:var(--lien);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}
.noi-dung a:hover{text-decoration-thickness:2px}
.contact-email{font-weight:600;overflow-wrap:anywhere}
.hop{max-width:40em;background:var(--xam);border-radius:22px;padding:28px;margin:34px 0}
.hop .nho{font-size:15px;font-weight:600;letter-spacing:0;color:var(--muc2);margin-bottom:8px}
.hop .email{font-size:clamp(21px,2.2vw,26px);font-weight:700;letter-spacing:-.018em;line-height:1.2;margin-bottom:12px}
.hop .email a{text-decoration:none}
.hop p:last-child{margin-bottom:0;color:var(--muc2)}

/* Chân trang (giống index.html) */
.chan{background:var(--xam);color:var(--muc2);padding:36px 0 56px;font-size:13px;letter-spacing:0}
.chan .khung{display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px;border-top:1px solid var(--vien);padding-top:22px}
.chan nav{display:flex;flex-wrap:wrap;gap:4px 22px}
.chan a:hover,.chan a[aria-current=page]{color:var(--muc)}
.chan a[aria-current=page]{font-weight:600}

@media (max-width:760px){
  .dh{top:10px;height:48px}
  .noi-dung h2{font-size:22px}
  .hop{padding:24px 20px}
}