/* Header là position:fixed và ở trang chủ chỉ #hero bù lại bằng padding-top.
   Trang này không có hero nên phải tự chừa chỗ, nếu không breadcrumb
   nằm gọn dưới thanh header và biến mất. */
#main{padding-top:var(--header-h)}

/* ---------- breadcrumb ---------- */
.crumb{background:var(--bg-soft);border-bottom:1px solid var(--line)}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:9px;
  padding:12px 0;font-size:.82rem;color:var(--muted)}
.crumb li{display:flex;align-items:center;gap:9px}
.crumb li+li::before{content:"";width:5px;height:5px;border-top:1.5px solid var(--line-2);
  border-right:1.5px solid var(--line-2);transform:rotate(45deg)}
.crumb a{color:var(--ink-2);font-weight:500}
.crumb a:hover{color:var(--brand-600)}
.crumb [aria-current]{color:var(--ink);font-weight:600}

/* nền xen kẽ giữa các dải — khai báo ở đây, cạnh nhau, để xoá một khối
   giao diện không vô tình xoá mất nền của dải khác. */
#uoc-tinh,#hoi-dap-gia{background:var(--bg-soft)}
.nav-link[aria-current],.drawer a[aria-current]{color:var(--brand-700);background:var(--brand-50)}

/* ---------- đầu trang + công tắc chu kỳ ---------- */
#gia{background:linear-gradient(180deg,var(--brand-50) 0%,#fff 62%)}
#gia .sec-head{max-width:48rem;margin-bottom:clamp(26px,3vw,36px)}
.cycle{display:flex;flex-direction:column;align-items:center;gap:12px;
  margin-bottom:clamp(30px,3.4vw,44px)}
.seg{display:inline-flex;gap:4px;padding:5px;background:#fff;
  border:1px solid var(--line-2);border-radius:999px;box-shadow:var(--sh-xs)}
.seg button{display:inline-flex;align-items:center;gap:8px;padding:9px 20px;border-radius:999px;
  font-weight:600;font-size:.9rem;color:var(--ink-2);transition:.2s var(--ease);white-space:nowrap}
.seg button:hover{color:var(--brand-700)}
.seg button[aria-pressed="true"]{background:var(--brand-500);color:#fff;
  box-shadow:0 6px 16px -8px rgba(42,82,216,.8)}
.seg .save{font-size:.72rem;font-weight:700;letter-spacing:.02em;padding:2px 8px;border-radius:999px;
  background:var(--ok-bg);color:var(--ok)}
.seg button[aria-pressed="true"] .save{background:rgba(255,255,255,.22);color:#fff}
.cycle-note{font-size:.85rem;color:var(--muted)}

/* ---------- ba gói ---------- */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(16px,1.7vw,22px);align-items:stretch}
.plan{position:relative;display:flex;flex-direction:column;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-xl);padding:clamp(24px,2.2vw,32px);
  box-shadow:var(--sh-sm);transition:transform .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease)}
.plan:hover{transform:translateY(-5px);box-shadow:var(--sh-md);border-color:var(--brand-200)}
.plan--best{border-color:var(--brand-500);box-shadow:var(--sh-lg)}
.plan--best::before{content:"";position:absolute;inset:-1px;border-radius:inherit;z-index:-1;
  background:var(--grad-brand);opacity:.1}
.plan-tag{position:absolute;top:-13px;left:50%;transform:translateX(-50%);
  display:inline-flex;align-items:center;gap:6px;padding:5px 14px;border-radius:999px;
  background:var(--grad-brand);color:#fff;font-size:.72rem;font-weight:700;
  letter-spacing:.06em;text-transform:uppercase;white-space:nowrap;
  box-shadow:0 8px 20px -10px rgba(42,82,216,.9)}
.plan-tag .ic{font-size:13px;stroke-width:2.4}
.plan-head{display:flex;align-items:center;gap:12px;margin-bottom:10px}
.plan-ico{flex:none;width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
  font-size:1.05rem;background:var(--brand-50);color:var(--brand-600);border:1px solid var(--brand-100)}
.plan--best .plan-ico{background:var(--grad-brand);color:#fff;border-color:transparent}
.plan h3{font-size:1.2rem}
.plan-for{font-size:.86rem;color:var(--muted);min-height:2.6em}
.plan-price{margin:18px 0 6px;display:flex;align-items:flex-end;gap:8px;flex-wrap:wrap}
.plan-price b{font-family:var(--font-head);font-size:clamp(1.9rem,1.3rem + 1.7vw,2.5rem);
  font-weight:800;letter-spacing:-.035em;line-height:1;color:var(--ink)}
.plan-price .cur{font-family:var(--font-head);font-size:1.05rem;font-weight:700;color:var(--ink-2);
  transform:translateY(-4px)}
.plan-price .per{font-size:.84rem;color:var(--muted);padding-bottom:3px}
.plan-price.is-quote b{font-size:clamp(1.5rem,1.1rem + 1.2vw,1.95rem)}
.plan-bill{font-size:.82rem;color:var(--muted);min-height:1.6em}
.plan-bill b{color:var(--ink-2);font-weight:600}
.plan .btn{margin:20px 0 6px}
.plan-min{font-size:.78rem;color:var(--muted);text-align:center;margin-bottom:18px}
.plan-inc{font-size:.78rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase;
  color:var(--ink-2);padding-top:18px;border-top:1px dashed var(--line-2);margin-bottom:14px}
.plan-list{display:grid;gap:11px;margin-bottom:6px}
.plan-list li{display:flex;gap:11px;align-items:flex-start;font-size:.9rem;color:var(--ink-2);line-height:1.55}
.plan-list .ck{flex:none;width:21px;height:21px;border-radius:7px;display:grid;place-items:center;
  background:var(--ok-bg);color:var(--ok);margin-top:1px}
.plan-list .ck .ic{font-size:12px;stroke-width:3}
.plan-list li b{color:var(--ink);font-weight:600}
.plan-foot{margin-top:auto}
@media (max-width:960px){.plans{grid-template-columns:1fr;max-width:30rem;margin-inline:auto}
  .plan-for,.plan-bill{min-height:0}}

/* ---------- ước tính + dịch vụ cộng thêm ---------- */
.calc-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(18px,2vw,26px);align-items:start}
.est{background:var(--navy-900);color:var(--on-dark);border-radius:var(--r-xl);
  padding:clamp(24px,2.4vw,34px);position:relative;overflow:hidden;isolation:isolate}
.est::before{content:"";position:absolute;inset:0;z-index:-1;opacity:.85;
  background:radial-gradient(46% 52% at 88% 6%,rgba(42,82,216,.5),transparent 70%),
             radial-gradient(40% 46% at 6% 96%,rgba(91,130,245,.28),transparent 72%)}
.est h3{color:#fff;font-size:1.14rem;margin-bottom:6px}
.est>p{color:var(--on-dark-2);font-size:.88rem;margin-bottom:22px}
.est-field{margin-bottom:20px}
.est-field>label{display:flex;justify-content:space-between;align-items:baseline;gap:12px;
  font-size:.84rem;font-weight:600;color:#dbe5ff;margin-bottom:10px}
.est-field output{font-family:var(--font-head);font-size:1.05rem;font-weight:700;color:#fff}
.est-range{-webkit-appearance:none;appearance:none;width:100%;height:6px;border-radius:999px;
  background:rgba(255,255,255,.16);outline-offset:6px}
.est-range::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:22px;height:22px;
  border-radius:50%;background:#fff;border:5px solid var(--brand-500);cursor:pointer;
  box-shadow:0 4px 12px rgba(0,0,0,.35)}
.est-range::-moz-range-thumb{width:22px;height:22px;border-radius:50%;background:#fff;
  border:5px solid var(--brand-500);cursor:pointer}
.est-scale{display:flex;justify-content:space-between;font-size:.72rem;color:var(--on-dark-3);margin-top:8px}
.est-plans{display:flex;gap:8px;flex-wrap:wrap}
.est-plans button{flex:1 1 0;min-width:110px;padding:11px 12px;border-radius:11px;font-size:.88rem;
  font-weight:600;color:var(--on-dark-2);background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.14);transition:.22s var(--ease)}
.est-plans button:hover:not([disabled]){background:rgba(255,255,255,.12);color:#fff}
.est-plans button[aria-pressed="true"]{background:#fff;color:var(--brand-700);border-color:#fff}
.est-plans button[disabled]{opacity:.4;cursor:not-allowed}
.est-out{margin-top:24px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14)}
.est-total{display:flex;align-items:flex-end;gap:9px;flex-wrap:wrap}
.est-total b{font-family:var(--font-head);font-size:clamp(1.8rem,1.2rem + 1.8vw,2.4rem);font-weight:800;
  letter-spacing:-.035em;line-height:1;
  background:linear-gradient(140deg,#fff 25%,#9fb8ff);-webkit-background-clip:text;background-clip:text;
  -webkit-text-fill-color:transparent;color:transparent}
.est-total span{color:var(--on-dark-2);font-size:.9rem;padding-bottom:3px}
.est-sub{color:var(--on-dark-3);font-size:.83rem;margin-top:9px}
.est-sub b{color:#cfdcff;font-weight:600}
.est-cta{margin-top:20px}

.addons{background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);
  padding:clamp(22px,2.2vw,30px);box-shadow:var(--sh-xs)}
.addons h3{font-size:1.14rem;margin-bottom:6px}
.addons>p{color:var(--ink-2);font-size:.88rem;margin-bottom:20px}
.addon{display:flex;gap:14px;align-items:flex-start;padding:15px 0;border-top:1px solid var(--line)}
.addon:first-of-type{border-top:0;padding-top:0}
.addon .ai{flex:none;width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:var(--bg-soft-2);color:var(--brand-600);font-size:1rem}
.addon-b{flex:1;min-width:0}
.addon-b b{display:block;font-family:var(--font-head);font-size:.96rem;color:var(--ink);margin-bottom:3px}
.addon-b span{font-size:.85rem;color:var(--muted);line-height:1.55}
.addon-p{flex:none;text-align:right;font-family:var(--font-head);font-weight:700;font-size:.88rem;
  color:var(--brand-700);white-space:nowrap}
.addon-p small{display:block;font-weight:500;font-size:.74rem;color:var(--muted)}
@media (max-width:900px){.calc-grid{grid-template-columns:1fr}}
@media (max-width:520px){.addon-p{text-align:left}.addon{flex-wrap:wrap}}

/* ---------- bảng so sánh chi tiết ---------- */
.ptable-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;
  border:1px solid var(--line);border-radius:var(--r-lg);background:#fff;box-shadow:var(--sh-xs)}
.ptable{width:100%;min-width:720px;border-collapse:separate;border-spacing:0;font-size:.9rem}
.ptable col.c-f{width:34%}
.ptable col.c-p{width:22%}
.ptable th,.ptable td{text-align:left;padding:14px 18px;border-bottom:1px solid var(--line)}
.ptable thead th{position:sticky;top:0;z-index:2;background:var(--bg-soft);
  font-family:var(--font-head);font-size:.8rem;letter-spacing:.03em;color:var(--ink);
  border-bottom:1px solid var(--line-2);padding:15px 18px}
.ptable thead th small{display:block;font-family:var(--font-body);font-weight:500;
  font-size:.74rem;color:var(--muted);letter-spacing:0;margin-top:2px}
.ptable thead th.is-best{background:var(--brand-50);color:var(--brand-700)}
.ptable tbody td.is-best,.ptable tbody th.is-best{background:rgba(42,82,216,.04)}
.ptable .grp th{background:var(--bg-soft-2);font-family:var(--font-head);font-size:.74rem;
  font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-2);padding:11px 18px}
.ptable tbody th{font-weight:500;color:var(--ink-2)}
.ptable td{text-align:center;color:var(--ink-2)}
.ptable tbody tr:last-child>*{border-bottom:0}
.ptable .yes{color:var(--ok);font-size:17px;margin-inline:auto;stroke-width:2.8}
.ptable .no{display:inline-block;width:14px;height:2px;border-radius:2px;background:var(--line-2);
  vertical-align:middle}
.ptable-legend{display:flex;align-items:center;justify-content:center;gap:18px;flex-wrap:wrap;
  margin-top:16px;font-size:.83rem;color:var(--muted)}
.ptable-legend span{display:inline-flex;align-items:center;gap:7px}
@media (max-width:760px){.ptable-scroll::after{content:""}
  .ptable thead th{position:static}}

/* ---------- dải cam kết (tối) ---------- */
.band-dark{background:var(--navy-900);color:var(--on-dark);overflow:hidden;isolation:isolate}
.band-dark::before{content:"";position:absolute;inset:0;z-index:-1;opacity:.75;
  background:radial-gradient(42% 46% at 14% 10%,rgba(42,82,216,.4),transparent 68%),
             radial-gradient(40% 44% at 86% 90%,rgba(27,59,169,.48),transparent 70%)}
.band-dark::after{content:"";position:absolute;inset:0;z-index:-1;opacity:.18;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(70% 60% at 50% 40%,#000,transparent 100%);
  -webkit-mask-image:radial-gradient(70% 60% at 50% 40%,#000,transparent 100%)}
.band-dark .sec-head h2{color:#fff}
.band-dark .sec-head p{color:var(--on-dark-2)}
.band-dark .eyebrow{background:rgba(91,130,245,.16);color:#9fb8ff;border-color:rgba(91,130,245,.3)}
@media (max-width:900px){.grid-4{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.grid-4{grid-template-columns:1fr}}

/* ---------- CTA cuối trang ---------- */
.price-cta{background:var(--grad-brand);color:#fff;border-radius:var(--r-xl);
  padding:clamp(30px,3.4vw,52px);text-align:center;position:relative;overflow:hidden;isolation:isolate}
.price-cta::before{content:"";position:absolute;width:420px;height:420px;border-radius:50%;z-index:-1;
  top:-180px;right:-120px;background:radial-gradient(circle,rgba(255,255,255,.18),transparent 62%)}
.price-cta h2{color:#fff;margin-bottom:12px}
.price-cta p{color:#dbe5ff;font-size:var(--fs-lead);max-width:46rem;margin:0 auto 26px}
.price-cta .eyebrow{background:rgba(255,255,255,.16);color:#eaf1ff;border-color:rgba(255,255,255,.28)}
.price-cta-acts{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.price-cta-note{margin-top:22px;font-size:.85rem;color:#c3d2f8}