/* ==========================================================================
   LÁT 2+3 · PRJ-045 · 19/10/2026 — TRANG CHỦ 1.1–1.4 + NỐI CẢNH (KE_HOACH_CHINH_GIAO_DIEN_1910 mục 1, DESIGN_SYSTEM 0.4 A).
   Nạp SAU lat1.css. Trang chủ thành trang cuộn thường (không deck). Chỉ animate transform/opacity,
   trừ: màu nền section (nối cảnh), stroke-dashoffset (sợi chỉ), clip-path (từ nhấn). Không animation vô hạn, không box-shadow.
   ========================================================================== */
:root {
  --nen-kem: var(--ground);
  --nen-trang: #ffffff;
  --nen-dam: #ece1cd;
  --nen-m12: #fbf8f1; --nen-m23: #f6f0e6; --nen-m34: #f1e8d8; /* trung gian kem-trắng · trắng-đậm · đậm-kem */
  --r-gutter: clamp(140px, 13vw, 200px);
}
html:not([data-giao-dien="sang"]) { --nen-trang: #211d16; --nen-dam: #2a251c; --nen-m12: #1c1913; --nen-m23: #262119; --nen-m34: #201d16; }

.pd .pd-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.pd .pd-chu { background: var(--ground); }
.pd .pd-chu__main { position: relative; }

/* ---------- Khung chung từng section ---------- */
.pd .pd-canh { position: relative; }
.pd .pd-canh .pd-s { position: relative; z-index: 1; background-color: var(--nen); }
.pd .pd-s1, .pd .pd-s2 { --nen: var(--nen-kem); }
.pd .pd-s3 { --nen: var(--nen-trang); }
.pd .pd-s4 { --nen: var(--nen-dam); }
.pd .pd-s { box-sizing: border-box; width: 100%; max-width: 1100px; margin-inline: auto; padding: 56px 24px; }
.pd .pd-canh .pd-s { max-width: none; padding-inline: max(24px, calc((100% - 1052px) / 2)); }
@media (max-width: 767px) { .pd .pd-s, .pd .pd-canh .pd-s { padding-inline: 16px; } .pd .pd-canh .pd-s { padding-block: 44px; } }
/* 1.5–1.8 giữ nguyên nội dung, chỉ thành section cuộn thường */
.pd .pd-s.pd-man--6, .pd .pd-s.pd-man--7, .pd .pd-s.pd-man--8, .pd .pd-s.pd-man--9 { max-width: 1060px; padding-block: 72px; }
@media (max-width: 767px) { .pd .pd-s.pd-man--6, .pd .pd-s.pd-man--7, .pd .pd-s.pd-man--8, .pd .pd-s.pd-man--9 { padding-block: 44px; } }

/* ---------- 1.1 Hero ---------- */
.pd .pd-s1 { min-height: min(100dvh, 880px); display: flex; align-items: center; padding-top: 40px; padding-bottom: 96px; }
.pd .pd-s1__in { width: 100%; }
.pd .pd-s1__h1 {
  margin: 0 0 28px; padding-block: .04em; max-width: 14em; font: 800 clamp(42px, 6.2vw, 96px) / 1 var(--font-heading);
  letter-spacing: -.03em; color: var(--color-bg);
}
.pd .pd-s1__phu { margin: 0 0 28px; max-width: 46ch; font-size: clamp(17px, 1.5vw, 20px); line-height: 1.6; color: var(--color-neutral-300); }
.pd .pd-s1__duoi { will-change: auto; }
/* từ nhấn: nền cam quét 560ms, 1 lần (clip-path). Chữ luôn hiện đủ. */
.pd .pd-nhan-sang { background: none !important; position: relative; isolation: isolate; display: inline-block; padding: 0 .12em; margin-inline: -.04em; color: #2e1103; }
.pd .pd-nhan-sang::before { content: ""; position: absolute; inset: .1em 0 .02em; background: var(--o-500); z-index: -1; border-radius: 2px; }
@media (prefers-reduced-motion: no-preference) {
  .pd .pd-nhan-sang::before { clip-path: inset(0 100% 0 0); animation: pd-quet var(--dur-slow) var(--ease-out) .2s 1 forwards; }
  @keyframes pd-quet { to { clip-path: inset(0 0 0 0); } }
}
/* ô giữ chỗ chờ Anh cấp chất liệu */
.pd .pd-mau {
  display: inline-block; padding: 1px 8px; border: 1px dashed var(--lat1-vien); border-radius: 6px; font-size: 14px; font-weight: 600;
  line-height: 1.5; color: var(--color-neutral-400); background: transparent; vertical-align: .08em;
}

/* ---------- 1.2 Không bán khoá ---------- */
.pd .pd-s2 { margin-top: -48px; padding-top: 112px; padding-bottom: 88px; z-index: 2; }
.pd .pd-nhan-12 { margin: 0 0 22px; font-size: 18px; font-weight: 600; color: var(--color-bg); }
.pd .pd-nhan-12__tu { display: inline-block; transform-origin: 0 0; padding: 0 .3em; margin-left: -.1em; background: var(--o-500); color: #2e1103; border-radius: 2px; }
.pd .pd-s2__t { margin: 0 0 28px; padding-block: .04em; max-width: 15em; font: 800 clamp(34px, 4.8vw, 68px) / 1.06 var(--font-heading); letter-spacing: -.025em; text-align: left; }
.pd .pd-s2__p { margin: 0 0 24px; max-width: 58ch; font-size: 17px; line-height: 1.7; color: var(--color-neutral-300); }
.pd .pd-s2__gt { margin: 0 0 10px; font-size: 17px; line-height: 1.7; color: var(--color-neutral-300); }

/* ---------- 1.3 Thang 5 bậc (SVG) ---------- */
.pd .pd-s3__t { margin: 0 0 16px; padding-block: .04em; font: 800 clamp(30px, 3.6vw, 48px) / 1.1 var(--font-heading); letter-spacing: -.02em; }
.pd .pd-s3__p { margin: 0 0 32px; max-width: 56ch; font-size: 17px; line-height: 1.65; color: var(--color-neutral-300); }
.pd .pd-thang { position: relative; margin: 0 0 32px; }
.pd .pd-thang__svg { display: block; width: 100%; height: auto; overflow: visible; font-family: var(--font-body); }
.pd .pd-thang__svg--doc { max-width: 358px; margin-inline: auto; }
/* bản không dùng ở khổ này: ẩn bằng visibility (không focus, không đọc), giữ kích thước >0 để không bị tính là icon lẻ */
.pd .pd-thang__svg--doc { position: absolute; left: 0; top: 0; width: 358px; visibility: hidden; pointer-events: none; }
@media (max-width: 1023px) {
  .pd .pd-thang__svg--ngang { position: absolute; left: 0; top: 0; width: 358px; visibility: hidden; pointer-events: none; }
  .pd .pd-thang__svg--doc { position: static; width: 100%; visibility: visible; pointer-events: auto; }
}
.pd .pd-bac { cursor: pointer; color: var(--color-bg); outline: none; transition: color var(--dur-base) var(--ease-out); -webkit-tap-highlight-color: transparent; }
.pd .pd-bac__nen { fill: var(--color-neutral-800); stroke: var(--lat1-vien); stroke-width: 1; }
.pd .pd-bac__sang { fill: var(--o-500); opacity: 0; transition: opacity var(--dur-base) var(--ease-out); }
.pd .pd-bac text { fill: currentColor; }
.pd .pd-bac__so { font-family: var(--font-heading); font-weight: 800; }
.pd .pd-bac__t { font-weight: 700; }
.pd .pd-bac__d { font-weight: 400; }
.pd .pd-bac:focus-visible, .pd .pd-bac.is-sang { color: #2e1103; }
.pd .pd-bac:focus-visible .pd-bac__sang, .pd .pd-bac.is-sang .pd-bac__sang { opacity: 1; }
@media (hover: hover) and (pointer: fine) {
  .pd .pd-bac:hover { color: #2e1103; }
  .pd .pd-bac:hover .pd-bac__sang { opacity: 1; }
}
.pd .pd-bac:focus-visible .pd-bac__nen { stroke: var(--color-bg); stroke-width: 3; }
.pd .pd-s3__cuoi { margin-bottom: 8px; }

/* ---------- 1.4 Mẫu B: 1 bài nổi + hàng chữ ---------- */
.pd .pd-b-muc { margin: 0 0 18px; padding-block: .04em; font: 800 clamp(26px, 3vw, 38px) / 1.15 var(--font-heading); letter-spacing: -.02em; }
.pd .pd-b-noi { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: 48px; align-items: center; padding-bottom: 48px; }
.pd .pd-b-noi__anh { display: block; aspect-ratio: 16 / 9; background: var(--color-neutral-800); overflow: hidden; }
.pd .pd-b-noi__anh img { display: block; width: 100%; height: 100%; object-fit: cover; }
.pd .pd-b-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 14px; font-size: 14px; color: var(--color-neutral-400); }
.pd .pd-b-meta b { font-weight: 700; color: var(--color-neutral-300); }
.pd .pd-b-meta span { display: inline-flex; align-items: center; gap: 6px; }
.pd .pd-b-noi__t { margin: 14px 0; padding-block: .04em; font: 800 clamp(24px, 2.6vw, 34px) / 1.2 var(--font-heading); }
.pd .pd-b-noi__t a { color: inherit; text-decoration: none; }
.pd .pd-b-noi__t a:hover, .pd .pd-b-noi__t a:focus-visible { color: var(--o-chu, var(--o-400)); }
.pd .pd-b-noi__d { margin: 0 0 18px; font-size: 16px; line-height: 1.65; color: var(--color-neutral-300); }
.pd .pd-b-lk { display: inline-flex; align-items: center; gap: 8px; min-height: 44px; font-weight: 700; color: var(--color-bg); text-decoration: none; }
@media (hover: hover) and (pointer: fine) { .pd .pd-b-lk:hover .pd-mt { transform: translateX(4px); } }
.pd .pd-b-ds { border-top: 2px solid var(--color-bg); padding-top: 24px; }
.pd .pd-b-ds ol { list-style: none; margin: 0; padding: 0; }
.pd .pd-b-ds li { border-bottom: 1px solid var(--lat1-vien); }
.pd .pd-b-ds li:first-child { border-top: 1px solid var(--lat1-vien); }
.pd .pd-b-hang {
  display: grid; grid-template-columns: 64px minmax(0, 1fr) auto 24px; grid-template-areas: "so tt doc go"; align-items: center; column-gap: 24px;
  min-height: 84px; padding: 16px 0; color: var(--color-bg); text-decoration: none; transition: transform var(--dur-fast) var(--ease-out);
}
.pd .pd-b-so { grid-area: so; display: flex; flex-direction: column; align-items: flex-start; font: 800 44px / 1 var(--font-heading); color: var(--o-chu, var(--o-400)); padding-block: .04em; }
.pd .pd-b-so small { margin-top: 4px; font: 600 13px / 1.2 var(--font-body); color: var(--color-neutral-400); }
.pd .pd-b-t { grid-area: tt; font: 800 20px / 1.3 var(--font-heading); padding-block: .04em; }
.pd .pd-b-doc { grid-area: doc; display: inline-flex; align-items: center; gap: 6px; font-size: 14px; color: var(--color-neutral-400); white-space: nowrap; }
.pd .pd-b-go { grid-area: go; color: var(--color-bg); width: 24px; height: 24px; transition: transform var(--dur-fast) var(--ease-out), opacity var(--dur-fast) var(--ease-out); }
.pd .pd-b-hang:focus-visible { transform: translateX(6px); }
@media (hover: hover) and (pointer: fine) { .pd .pd-b-hang:hover { transform: translateX(6px); } }
.pd .pd-b-hang:hover .pd-b-t, .pd .pd-b-hang:focus-visible .pd-b-t { color: var(--o-chu, var(--o-400)); }
.pd .pd-b-hang:focus-visible, .pd .pd-b-lk:focus-visible, .pd .pd-b-noi__t a:focus-visible { outline: 3px solid var(--color-bg); outline-offset: 3px; border-radius: 2px; }
@media (hover: hover) { .pd .pd-b-go { opacity: 0; transform: translateX(-4px); } .pd .pd-b-hang:hover .pd-b-go, .pd .pd-b-hang:focus-visible .pd-b-go { opacity: 1; transform: none; } }
.pd .pd-b-cuoi { margin-top: 28px; }
@media (prefers-reduced-motion: no-preference) {
  html.js:not(.giam) .pd-b-ds li.pd-b-cho:not(.hien) { opacity: 0; transform: translateY(12px); }
  html.js:not(.giam) .pd-b-ds li.pd-b-cho { transition: opacity var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out); }
}
@media (max-width: 860px) { .pd .pd-b-noi { grid-template-columns: 1fr; gap: 24px; padding-bottom: 36px; } }
@media (max-width: 640px) {
  .pd .pd-b-ds li:nth-child(n+4) { display: none; }
  .pd .pd-b-hang { grid-template-columns: 44px minmax(0, 1fr) 24px; grid-template-areas: "so tt go" "so doc go"; column-gap: 16px; row-gap: 4px; min-height: 44px; }
  .pd .pd-b-so { font-size: 36px; }
  .pd .pd-b-t { font-size: 18px; }
  .pd .pd-b-go { opacity: 1; transform: none; }
  .pd .pd-b-cuoi .pd-nut { width: 100%; justify-content: center; }
}

/* ---------- Robot đi cùng người đọc ---------- */
.pd .pd-canh__robot { display: none; }
.pd .pd-r-trong { display: block; margin: 28px 0 0; width: min(46vw, 180px); }
.pd .pd-r-trong img { display: block; width: 100%; height: auto; }
.pd .pd-r { background: none; }
@media (min-width: 1024px) and (prefers-reduced-motion: no-preference) {
  html.js .pd .pd-canh .pd-s { padding-right: max(24px, calc((100% - 1052px) / 2), calc(var(--r-gutter) + 8px)); }
  html.js .pd .pd-r-trong { display: none; }
  html.js .pd .pd-canh__robot { display: block; position: sticky; top: calc(100dvh - 232px); height: 2px; margin-bottom: -2px; width: 100%; z-index: 4; pointer-events: none; }
  html.js .pd .pd-canh__robot-in {
    position: absolute; right: 12px; top: 0; width: calc(var(--r-gutter) - 24px); aspect-ratio: 420 / 497;
  }
  html.js .pd .pd-canh__robot-in .pd-r { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; object-position: 50% 100%; opacity: 0; transition: opacity var(--dur-base) var(--ease-out); }
  html.js .pd .pd-canh__robot-in .pd-r.is-hien { opacity: 1; }
}

/* ---------- Sợi chỉ nối ---------- */
.pd .pd-soi { position: absolute; left: 0; top: 0; z-index: 3; width: 14px; height: calc(100% - 760px); pointer-events: none; overflow: visible; }
@media (min-width: 640px) { .pd .pd-soi { width: clamp(32px, 5vw, 72px); height: calc(100% - 900px); } }
.pd .pd-soi__net { stroke: var(--o-chu, var(--o-400)); stroke-width: 1.5px; stroke-linecap: round; stroke-dasharray: 1; stroke-dashoffset: 0; }
html.js .pd-canh[style*="--soi-h"] .pd-soi { height: var(--soi-h); }

/* ---------- Nền chảy kem → trắng → kem đậm → kem ---------- */
.pd .pd-s5 { --nen: var(--nen-kem); background-color: var(--nen); position: relative; }
@media (prefers-reduced-motion: no-preference) {
  @supports (animation-timeline: view()) {
    html.js .pd .pd-canh .pd-s2 { animation: pd-nen-2 linear both; animation-timeline: view(); animation-range: cover 0% cover 100%; }
    html.js .pd .pd-canh .pd-s3 { animation: pd-nen-3 linear both; animation-timeline: view(); animation-range: cover 0% cover 100%; }
    html.js .pd .pd-canh .pd-s4 { animation: pd-nen-4 linear both; animation-timeline: view(); animation-range: cover 0% cover 100%; }
    html.js .pd .pd-s5 { animation: pd-nen-5 linear both; animation-timeline: view(); animation-range: cover 0% cover 100%; }
    @keyframes pd-nen-2 { 0%, 55% { background-color: var(--nen-kem); } 100% { background-color: var(--nen-m12); } }
    @keyframes pd-nen-3 { 0% { background-color: var(--nen-m12); } 25%, 70% { background-color: var(--nen-trang); } 100% { background-color: var(--nen-m23); } }
    @keyframes pd-nen-4 { 0% { background-color: var(--nen-m23); } 30%, 80% { background-color: var(--nen-dam); } 100% { background-color: var(--nen-m34); } }
    @keyframes pd-nen-5 { 0% { background-color: var(--nen-m34); } 30%, 100% { background-color: var(--nen-kem); } }
  }
  /* dự phòng: máy chưa có animation-timeline → IntersectionObserver đổi màu 560ms */
  html.nen-io .pd .pd-canh .pd-s { background-color: var(--nen-kem); transition: background-color var(--dur-slow) var(--ease-out); }
  html.nen-io .pd .pd-canh .pd-s.nen-vao { background-color: var(--nen); }
}

/* ---------- Vào khung: trượt 12px → 0 trong 320ms (chỉ transform; chữ luôn hiện) ---------- */
@media (prefers-reduced-motion: no-preference) {
  html.js:not(.giam) .pd [data-vao]:not(.hien) { transform: translateY(12px); }
  html.js:not(.giam) .pd [data-vao] { transition: transform var(--dur-base) var(--ease-out); }
}

/* ---------- Giảm chuyển động: nội dung đủ, tĩnh, sợi chỉ hiện đầy ---------- */
@media (prefers-reduced-motion: reduce) {
  .pd .pd-nhan-sang::before { clip-path: none; animation: none; }
  .pd .pd-soi__net { stroke-dashoffset: 0 !important; }
  .pd [data-vao], .pd .pd-nhan-12__tu, .pd .pd-s1__duoi { transform: none !important; }
}

/* ---------- Ranh giới nền: hai phía chung 1 mốc màu + lớp chuyển 48px ở mép (không còn cạnh cứng) ---------- */
.pd .pd-s5 { isolation: isolate; }
.pd .pd-s2::after, .pd .pd-s3::before, .pd .pd-s3::after, .pd .pd-s4::before, .pd .pd-s4::after, .pd .pd-s5::before {
  content: ""; position: absolute; left: 0; right: 0; height: 48px; z-index: -1; pointer-events: none;
}
.pd .pd-s2::after  { bottom: 0; background: linear-gradient(to bottom, transparent, var(--nen-m12)); }
.pd .pd-s3::before { top: 0;    background: linear-gradient(to bottom, var(--nen-m12), transparent); }
.pd .pd-s3::after  { bottom: 0; background: linear-gradient(to bottom, transparent, var(--nen-m23)); }
.pd .pd-s4::before { top: 0;    background: linear-gradient(to bottom, var(--nen-m23), transparent); }
.pd .pd-s4::after  { bottom: 0; background: linear-gradient(to bottom, transparent, var(--nen-m34)); }
.pd .pd-s5::before { top: 0;    background: linear-gradient(to bottom, var(--nen-m34), transparent); z-index: -1; }

/* ==========================================================================
   LÁT 3 · PRJ-045 · 19/10/2026 — 1.5–1.8 + /blog/ (mẫu B, bộ lọc dải chữ).
   Nối tiếp lat2.css (đã gộp ở trên). Chỉ animate transform/opacity (+ màu nền section, stroke-dashoffset).
   ========================================================================== */

/* ---- nền chảy: bổ sung 1.5 → 1.8 ---- */
.pd .pd-s6 { --nen: var(--nen-trang); }
.pd .pd-s5, .pd .pd-s7, .pd .pd-s8 { --nen: var(--nen-kem); }
.pd .pd-s5::after, .pd .pd-s6::before, .pd .pd-s6::after, .pd .pd-s7::before {
  content: ""; position: absolute; left: 0; right: 0; height: 48px; z-index: -1; pointer-events: none;
}
.pd .pd-s5::after  { bottom: 0; background: linear-gradient(to bottom, transparent, var(--nen-m12)); }
.pd .pd-s6::before { top: 0;    background: linear-gradient(to bottom, var(--nen-m12), transparent); }
.pd .pd-s6::after  { bottom: 0; background: linear-gradient(to bottom, transparent, var(--nen-m12)); }
.pd .pd-s7::before { top: 0;    background: linear-gradient(to bottom, var(--nen-m12), transparent); }
@media (prefers-reduced-motion: no-preference) {
  @supports (animation-timeline: view()) {
    html.js .pd .pd-canh .pd-s5 { animation: pd-nen-5b linear both; animation-timeline: view(); animation-range: cover 0% cover 100%; }
    html.js .pd .pd-canh .pd-s6 { animation: pd-nen-6 linear both; animation-timeline: view(); animation-range: cover 0% cover 100%; }
    html.js .pd .pd-canh .pd-s7 { animation: pd-nen-7 linear both; animation-timeline: view(); animation-range: cover 0% cover 100%; }
    @keyframes pd-nen-5b { 0% { background-color: var(--nen-m34); } 30%, 70% { background-color: var(--nen-kem); } 100% { background-color: var(--nen-m12); } }
    @keyframes pd-nen-6 { 0% { background-color: var(--nen-m12); } 25%, 70% { background-color: var(--nen-trang); } 100% { background-color: var(--nen-m12); } }
    @keyframes pd-nen-7 { 0% { background-color: var(--nen-m12); } 30%, 100% { background-color: var(--nen-kem); } }
  }
}

/* ---- sợi chỉ chế độ px (JS dựng theo kích thước thật, dừng ở nút chính 1.8) ---- */
.pd .pd-soi.pd-soi--px { width: 100%; height: 100%; }

/* ---- 1.5 Bốn thứ tôi viết: danh sách đánh số lớn ---- */
.pd .pd-s5, .pd .pd-s7, .pd .pd-s8 { padding-block: 72px; }
.pd .pd-l5__t, .pd .pd-l7__t, .pd .pd-l6__t, .pd .pd-l8__t { margin: 0 0 36px; padding-block: .04em; font: 800 clamp(30px, 3.6vw, 48px) / 1.1 var(--font-heading); letter-spacing: -.02em; }
.pd .pd-l5__ds { list-style: none; margin: 0; padding: 0; border-top: 2px solid var(--color-bg); }
.pd .pd-l5__muc { display: grid; grid-template-columns: clamp(84px, 11vw, 150px) minmax(0, 1fr); align-items: start; column-gap: 24px; padding: 24px 0 26px; border-bottom: 1px solid var(--lat1-vien); }
.pd .pd-l5__so { font: 800 clamp(56px, 8vw, 104px) / .9 var(--font-heading); letter-spacing: -.03em; color: var(--o-chu, var(--o-400)); padding-block: .04em; display: block; }
.pd .pd-l5__t3 { margin: 4px 0 8px; padding-block: .04em; font: 800 clamp(22px, 2.4vw, 30px) / 1.2 var(--font-heading); }
.pd .pd-l5__p { margin: 0 0 6px; max-width: 52ch; font-size: 17px; line-height: 1.6; color: var(--color-neutral-300); }
.pd .pd-l5__lk { display: inline; padding-block: 12px; }
@media (prefers-reduced-motion: no-preference) {
  html.js:not(.giam) .pd .pd-l5__muc[data-vao]:not(.hien) .pd-l5__so { transform: translateX(-16px); }
  html.js:not(.giam) .pd .pd-l5__so { transition: transform var(--dur-base) var(--ease-out); }
}

/* ---- 1.6 Sổ tay để ngỏ: khối chữ hẹp + 1 trích dẫn ---- */
.pd .pd-l6 { max-width: 600px; }
.pd .pd-l6__p { margin: 0 0 18px; font-size: 17px; line-height: 1.7; color: var(--color-neutral-300); }
.pd .pd-l6__p strong { color: var(--color-bg); }
.pd .pd-l6__q { margin: 32px 0; padding: 22px 0 0; border-top: 2px solid var(--color-bg); }
.pd .pd-l6__q p { margin: 0 0 12px; font: 800 clamp(26px, 3vw, 36px) / 1.18 var(--font-heading); letter-spacing: -.02em; }
.pd .pd-l6__q footer { font-size: 16px; line-height: 1.6; color: var(--color-neutral-300); }
.pd .pd-l6__chuyen { margin: 0; font-size: 17px; line-height: 1.7; color: var(--color-neutral-300); }

/* ---- 1.7 Sáu thứ đang chạy thật: 6 hàng ---- */
.pd .pd-l7__phu { margin: -20px 0 28px; font-size: 16px; color: var(--color-neutral-400); }
.pd .pd-l7__dau, .pd .pd-l7__hang { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr) minmax(0, 3fr); column-gap: 28px; align-items: start; }
.pd .pd-l7__dau { padding: 0 0 10px; font-size: 14px; font-weight: 600; color: var(--color-neutral-400); border-bottom: 2px solid var(--color-bg); }
.pd .pd-l7__ds { list-style: none; margin: 0; padding: 0; }
.pd .pd-l7__hang { padding: 20px 0; border-bottom: 1px solid var(--lat1-vien); }
.pd .pd-l7__viec { font: 800 20px / 1.3 var(--font-heading); padding-block: .04em; }
.pd .pd-l7__ai { display: block; margin-top: 6px; font: 600 14px / 1.4 var(--font-body); color: var(--color-neutral-400); }
.pd .pd-l7__cu { margin: 0; font-size: 16px; line-height: 1.6; color: var(--color-neutral-300); }
.pd .pd-l7__bao { font-size: 15px; }
.pd .pd-l7__anh { margin: 32px 0 0; max-width: 640px; aspect-ratio: 16 / 9; display: grid; place-items: center; border: 1px dashed var(--lat1-vien); border-radius: 6px; text-align: center; padding: 16px; }
.pd .pd-l7__anh figcaption { display: block; margin-top: 8px; font-size: 14px; color: var(--color-neutral-400); }
@media (max-width: 767px) {
  .pd .pd-l7__dau { display: none; }
  .pd .pd-l7__hang { grid-template-columns: 1fr; row-gap: 8px; padding: 18px 0; }
  .pd .pd-l7__cu::before, .pd .pd-l7__bao::before { content: attr(data-nhan) ": "; font-weight: 600; color: var(--color-neutral-400); }
  .pd .pd-l7__bao { display: block; }
}

/* ---- 1.8 Giờ làm gì tiếp: 1 khối phẳng, 2 nút ---- */
.pd .pd-l8 { max-width: 640px; padding: clamp(24px, 3vw, 40px); background: var(--color-neutral-800); border: 1px solid var(--lat1-vien); border-radius: 8px; margin-bottom: 32px; }
.pd .pd-l8__t { margin-bottom: 16px; }
.pd .pd-l8__p { margin: 0 0 24px; font-size: 17px; line-height: 1.65; color: var(--color-neutral-300); }
.pd .pd-l8 .pd-hang-nut { display: flex; flex-wrap: wrap; gap: 12px; }
.pd .pd-l8__nho { margin: 16px 0 0; font-size: 14px; color: var(--color-neutral-400); }
.pd .pd-s9 { --nen: var(--nen-kem); padding-block: 0 80px; }
.pd .pd-s9 .pd-m9__the { max-width: 640px; }
@media (max-width: 480px) { .pd .pd-l8 .pd-nut, .pd .pd-l8 .pd-nut-vien { width: 100%; justify-content: center; } }

/* ==========================================================================
   /blog/ — mẫu B + bộ lọc dải chữ gạch chân
   ========================================================================== */
.pd .pd-bg { max-width: 1100px; margin: 0 auto; padding: 56px 24px 72px; }
.pd .pd-bg__h1 { margin: 0 0 16px; padding-block: .04em; max-width: 16em; font: 800 clamp(38px, 5.6vw, 76px) / 1.02 var(--font-heading); letter-spacing: -.03em; }
.pd .pd-bg__lede { margin: 0 0 40px; max-width: 58ch; font-size: 18px; line-height: 1.6; color: var(--color-neutral-300); }
.pd .pd-bl-loc2 { display: grid; grid-template-columns: minmax(0, 1fr); gap: 4px; margin-bottom: 40px; }
.pd .pd-bl-loc2__nhom { display: flex; flex-wrap: wrap; align-items: center; gap: 0 6px; min-width: 0; }
.pd .pd-bl-loc2__nhan { min-width: 156px; font-size: 14px; font-weight: 600; color: var(--color-neutral-400); }
.pd .pd-bl-loc2__ds { position: relative; display: flex; flex-wrap: wrap; gap: 0; min-width: 0; max-width: 100%; }
.pd .pd-bl-f { position: relative; min-height: 44px; padding: 0 14px; display: inline-flex; align-items: center; background: none; border: 0; border-radius: 0; font: 600 16px / 1 var(--font-body); color: var(--color-neutral-300); cursor: pointer; transition: color var(--dur-fast) linear; white-space: nowrap; }
.pd .pd-bl-f[aria-pressed="true"] { color: var(--color-bg); }
@media (hover: hover) and (pointer: fine) { .pd .pd-bl-f:hover { color: var(--color-bg); } }
.pd .pd-bl-f:focus-visible { outline: 2px solid var(--color-bg); outline-offset: -2px; }
.pd .pd-bl-f__gach { position: absolute; left: 0; bottom: 6px; width: 1px; height: 2px; background: var(--lat1-gach); transform-origin: 0 0; transition: transform var(--dur-base) var(--ease-out); pointer-events: none; }
.pd .pd-bg__ds-dau { display: flex; justify-content: space-between; align-items: baseline; gap: 16px; border-top: 2px solid var(--color-bg); padding-top: 24px; margin-bottom: 8px; }
.pd .pd-bg__ds-t { margin: 0; font: 800 clamp(22px, 2.4vw, 28px) / 1.2 var(--font-heading); padding-block: .04em; }
.pd .pd-bg__dem { font-size: 14px; color: var(--color-neutral-400); }
.pd .pd-bg__noi { margin-bottom: 48px; }
.pd .pd-bg ol.pd-bg__ds { list-style: none; margin: 0; padding: 0; transition: opacity var(--dur-fast) linear; }
.pd .pd-bg ol.pd-bg__ds.is-mo { opacity: 0; }
.pd .pd-bg ol.pd-bg__ds li { border-bottom: 1px solid var(--lat1-vien); }
.pd .pd-bg ol.pd-bg__ds li:first-child { border-top: 1px solid var(--lat1-vien); }
.pd .pd-bg ol.pd-bg__ds li[hidden] { display: none; }
.pd .pd-bg .pd-b-hang { grid-template-columns: 64px minmax(0, 1fr) auto auto 24px; grid-template-areas: "so tt cd doc go"; }
.pd .pd-bg .pd-b-cd { grid-area: cd; font-size: 14px; color: var(--color-neutral-400); white-space: nowrap; }
.pd .pd-bg .pd-b-doc { grid-area: doc; }
@media (prefers-reduced-motion: no-preference) {
  html.js:not(.giam) .pd .pd-bg ol.pd-bg__ds li.pd-b-cho:not(.hien) { opacity: 0; transform: translateY(12px); }
  html.js:not(.giam) .pd .pd-bg ol.pd-bg__ds li.pd-b-cho { transition: opacity var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out); }
}
@media (max-width: 860px) { .pd .pd-bg .pd-b-cd { display: none; } .pd .pd-bg .pd-b-hang { grid-template-columns: 64px minmax(0, 1fr) auto 24px; grid-template-areas: "so tt doc go"; } }
@media (max-width: 640px) {
  .pd .pd-bg { padding: 32px 16px 48px; }
  .pd .pd-bl-loc2__nhom { display: block; }
  .pd .pd-bl-loc2__ds { flex-wrap: nowrap; overflow-x: auto; overflow-y: hidden; scrollbar-width: none; -webkit-overflow-scrolling: touch; margin-inline: -16px; padding-inline: 2px; }
  .pd .pd-bl-loc2__ds::-webkit-scrollbar { display: none; }
  .pd .pd-bg .pd-b-hang { grid-template-columns: 44px minmax(0, 1fr) 24px; grid-template-areas: "so tt go" "so doc go"; column-gap: 16px; row-gap: 4px; min-height: 44px; }
  .pd .pd-bg .pd-b-so { font-size: 36px; }
  .pd .pd-bg .pd-b-t { font-size: 18px; }
  .pd .pd-bg .pd-b-go { opacity: 1; transform: none; }
  .pd .pd-bg ol.pd-bg__ds li { display: block; }
  .pd .pd-bg ol.pd-bg__ds li[hidden] { display: none; }
}
@media (prefers-reduced-motion: reduce) {
  .pd .pd-bl-f__gach { transition: none; }
  .pd .pd-bg ol.pd-bg__ds.is-mo { opacity: 1; }
}

/* ---------- Lát 3 · vòng 1 sửa ---------- */
/* H1 "dùng AI": bỏ cơ chế clip-path của nen.css/phat.js; chữ luôn hiện, nền cam quét bằng ::before 560ms (cùng trang chủ) */
.pd .pd-nhan-sang.pd-ts-cho, .pd .pd-nhan-sang.pd-ts-cho:not(.pd-ts-hien), html.js .pd .pd-nhan-sang.pd-ts-cho:not(.pd-ts-hien) { clip-path: none !important; transition: none !important; }
/* sợi chỉ ở dưới nội dung 1.5–1.9: section không tạo lớp chồng, phần tử con nổi lên trên sợi chỉ */
.pd .pd-canh .pd-s5, .pd .pd-canh .pd-s6, .pd .pd-canh .pd-s7, .pd .pd-canh .pd-s8, .pd .pd-canh .pd-s9 { z-index: auto; }
.pd .pd-s5 > *, .pd .pd-s6 > *, .pd .pd-s7 > *, .pd .pd-s8 > *, .pd .pd-s9 > * { position: relative; z-index: 4; }
.pd .pd-s5::before, .pd .pd-s5::after, .pd .pd-s6::before, .pd .pd-s6::after, .pd .pd-s7::before { z-index: 0; }
.pd .pd-s5 > .pd-r-trong, .pd .pd-s6 > .pd-r-trong, .pd .pd-s8 > .pd-r-trong { z-index: 4; }
.pd .pd-l8 { background: transparent; }
/* vùng bấm */
.pd .pd-l5__lk { padding-block: 14px; }
.pd .pd-s9 .input, .pd .pd-nhan .input { min-height: 44px; }

/* ---------- Bản sống: 1.7 chỉ còn 2 cột (đã gỡ cột "đã chạy bao lâu" cùng ô giữ chỗ) ---------- */
.pd .pd-l7__dau, .pd .pd-l7__hang { grid-template-columns: minmax(0, 5fr) minmax(0, 6fr); }
.pd .pd-b-noi__anh .pd-anh, .pd .pd-b-noi__anh .pd-anh__img { display: block; width: 100%; height: 100%; }
.pd .pd-b-noi__anh figure, .pd .pd-b-noi__anh .pd-anh { margin: 0; }