/* BEGIN RON PRODUCT HEADER — CSS độc lập, mọi selector đều được giới hạn. */
    .ron-ph {
      --ron-ph-ink: #171a13;
      --ron-ph-muted: #6c6b65;
      --ron-ph-green: #b8d925;
      --ron-ph-dark: #0d1408;
      --ron-ph-line: #d9d8cf;
      --ron-ph-surface: #fff;
      position: relative;
      z-index: 50;
      width: 100%;
      color: var(--ron-ph-ink);
      background: var(--ron-ph-surface);
      font-family: "Segoe UI", Arial, sans-serif;
      font-size: 14px;
      line-height: 1.4;
      text-align: left;
      -webkit-text-size-adjust: 100%;
      isolation: isolate;
    }
    .ron-ph[data-sticky="true"] { position: sticky; top: 0; }
    .ron-ph, .ron-ph *, .ron-ph *::before, .ron-ph *::after { box-sizing: border-box; }
    .ron-ph [hidden] { display: none !important; }
    .ron-ph :where(a) { color: inherit; text-decoration: none; }
    .ron-ph button, .ron-ph a { -webkit-tap-highlight-color: transparent; }
    .ron-ph :where(button) { margin: 0; font: inherit; color: inherit; cursor: pointer; }
    .ron-ph button:focus-visible, .ron-ph a:focus-visible {
      outline: 2px solid #667f12;
      outline-offset: 3px;
    }
    .ron-ph button:disabled { cursor: not-allowed; }
    .ron-ph svg { display: block; flex: 0 0 auto; }
    .ron-ph__container { width: min(1464px, calc(100% - 48px)); margin-inline: auto; }
    .ron-ph__announcement {
      min-height: 36px;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 8px 16px;
      color: #fff;
      background: var(--ron-ph-dark);
      font-size: 10px;
      font-weight: 800;
      letter-spacing: 1.1px;
      line-height: 1.5;
      text-align: center;
    }
    .ron-ph__announcement-text { display: flex; justify-content: center; flex-wrap: wrap; gap: 0 5px; }
    .ron-ph__announcement-text > span { white-space: nowrap; }
    .ron-ph__main { border-bottom: 1px solid var(--ron-ph-line); }
    .ron-ph__main-inner { min-height: 83px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
    .ron-ph__brand { display: inline-flex; flex-direction: column; gap: 3px; flex-shrink: 0; padding: 4px 0; }
    .ron-ph__brand-title {
      display: block;
      margin: 0;
      font-family: "Times New Roman", Times, serif;
      font-size: 20px;
      font-weight: 400;
      line-height: 1.2;
      letter-spacing: .3px;
      white-space: nowrap;
    }
    .ron-ph__brand-subtitle {
      display: block;
      color: #516b0d;
      font-size: 9px;
      font-weight: 800;
      line-height: 1.5;
      letter-spacing: 1.3px;
      white-space: nowrap;
    }
    .ron-ph__actions { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
    .ron-ph__locale { position: relative; }
    .ron-ph__locale-toggle {
      width: 210px;
      min-height: 46px;
      display: flex;
      align-items: center;
      gap: 9px;
      padding: 9px 10px;
      border: 1px solid var(--ron-ph-line);
      border-radius: 0;
      background: #fff;
      font-size: 13px;
      font-weight: 700;
      text-align: left;
    }
    .ron-ph__flag-vn { width: 28px; height: 20px; }
    .ron-ph__locale-name { flex: 1; }
    .ron-ph__chevron { width: 12px; height: 12px; stroke: currentColor; fill: none; stroke-width: 1.7; }
    .ron-ph__locale-toggle[aria-expanded="true"] .ron-ph__chevron { transform: rotate(180deg); }
    .ron-ph__icon-button {
      position: relative;
      width: 44px;
      height: 44px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      padding: 9px;
      border: 1px solid var(--ron-ph-line);
      border-radius: 0;
      background: #fff;
    }
    .ron-ph__icon-button svg { width: 23px; height: 23px; fill: none; stroke: currentColor; stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
    .ron-ph__icon-button--menu { width: 46px; height: 46px; border: 2px solid #171a13; border-radius: 4px; padding: 7px; }
    .ron-ph__icon-button--menu svg { width: 28px; height: 28px; stroke-width: 1.7; stroke-linecap: butt; }
    .ron-ph__cart-badge {
      position: absolute;
      top: 2px;
      right: 2px;
      display: inline-flex;
      justify-content: center;
      align-items: center;
      min-width: 18px;
      height: 18px;
      padding: 0 4px;
      border-radius: 20px;
      background: var(--ron-ph-green);
      color: #152000;
      font-size: 11px;
      font-weight: 700;
      line-height: 1;
    }
    .ron-ph__locale-toggle:hover, .ron-ph__icon-button:hover { background: #f9faf5; }
    .ron-ph__tabs {
      border-top: 1px solid var(--ron-ph-line);
      border-bottom: 1px solid var(--ron-ph-line);
      background: linear-gradient(180deg, #f8f8f7 0%, #fff 65%);
    }
    .ron-ph__tab-track { display: flex; overflow-x: auto; scrollbar-width: none; overscroll-behavior-x: contain; }
    .ron-ph__tab-track::-webkit-scrollbar { display: none; }
    .ron-ph__tab {
      position: relative;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      flex: 0 0 auto;
      min-height: 58px;
      padding: 0 22px;
      border-bottom: 2px solid transparent;
      color: var(--ron-ph-muted) !important;
      font-size: 13px;
      font-weight: 700;
      letter-spacing: .45px;
      white-space: nowrap;
      transition: background-color .15s, color .15s;
    }
    .ron-ph__tab[aria-current="location"] { color: #10130b !important; border-bottom-color: var(--ron-ph-green); }
    .ron-ph__tab:hover { color: #10130b !important; background: #f7f9ef; }
    .ron-ph__tab:focus-visible { outline-offset: -5px; }

    /* Bảng chọn ngôn ngữ: chỉ điều hướng tới URL bản dịch đã được cấu hình. */
    .ron-ph__language-panel {
      position: absolute;
      top: calc(100% + 10px);
      right: 0;
      z-index: 70;
      width: 372px;
      padding: 20px;
      border: 1px solid var(--ron-ph-line);
      border-radius: 8px;
      background: #fff;
      box-shadow: 0 16px 48px rgb(13 20 8 / 15%);
    }
    .ron-ph__panel-heading { margin: 0 0 6px; font-size: 16px; font-weight: 700; }
    .ron-ph__panel-note { margin: 0 0 14px; color: var(--ron-ph-muted); font-size: 12px; line-height: 1.6; }
    .ron-ph__country-list { display: grid; gap: 2px; max-height: min(410px, 55vh); overflow-y: auto; scrollbar-width: thin; }
    .ron-ph__country {
      width: 100%;
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 10px 8px;
      border: 1px solid transparent;
      border-radius: 4px;
      background: #fff;
      text-align: left;
    }
    .ron-ph__country:hover { background: #f7f9ef; }
    .ron-ph__country[aria-current="true"] { border-color: #dce7b1; background: #f6f9ec; }
    .ron-ph__country[aria-disabled="true"] { color: #666960; }
    .ron-ph__country-code { display: grid; place-items: center; width: 30px; min-width: 30px; height: 23px; border-radius: 2px; background: #f2f2ed; font-size: 10px; font-weight: 800; }
    .ron-ph__country strong { display: block; font-size: 13px; font-weight: 600; }
    .ron-ph__country small { display: block; font-size: 11px; color: var(--ron-ph-muted); }
    .ron-ph__country-state { margin-left: auto; font-size: 10px; white-space: nowrap; }
    .ron-ph__language-status { margin: 12px 0 0; color: #52640f; font-size: 12px; line-height: 1.5; }
    .ron-ph__language-status:empty { display: none; }

    /* Menu trượt, dùng dialog gốc của trình duyệt để giữ focus và hỗ trợ phím Esc. */
    .ron-ph__drawer {
      position: fixed;
      inset: 0 0 0 auto;
      width: min(400px, 100vw);
      max-width: none;
      height: 100vh;
      height: 100dvh;
      max-height: none;
      margin: 0;
      padding: 28px;
      border: 0;
      background: #fff;
      color: var(--ron-ph-ink);
      overflow-y: auto;
      box-shadow: -14px 0 60px rgb(13 20 8 / 12%);
    }
    .ron-ph__drawer::backdrop { background: rgb(13 20 8 / 38%); }
    .ron-ph__drawer-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; margin-bottom: 26px; }
    .ron-ph__drawer-brand { margin: 0; font-family: "Times New Roman", Times, serif; font-size: 19px; letter-spacing: .2px; }
    .ron-ph__drawer-caption { margin: 0 0 10px; color: #66743c; font-size: 10px; font-weight: 700; letter-spacing: 1.8px; }
    .ron-ph__drawer-link { display: flex; align-items: center; justify-content: space-between; gap: 14px; padding: 17px 0; border-bottom: 1px solid #eeeee8; font-size: 15px; font-weight: 600; }
    .ron-ph__drawer-link:hover { color: #576a11; }
    .ron-ph__drawer-link svg { width: 20px; height: 20px; stroke: currentColor; fill: none; stroke-width: 1.5; }
    .ron-ph__drawer-extra:empty { display: none; }
    .ron-ph__drawer-extra { padding-top: 24px; }
    .ron-ph__drawer-footer { margin: 28px 0 0; color: var(--ron-ph-muted); font-size: 11px; letter-spacing: 1px; line-height: 1.8; }
    .ron-ph__toast {
      position: fixed;
      bottom: 24px;
      left: 50%;
      z-index: 100;
      width: max-content;
      max-width: min(520px, calc(100vw - 32px));
      transform: translateX(-50%);
      padding: 14px 18px;
      border-radius: 7px;
      background: var(--ron-ph-dark);
      color: #fff;
      box-shadow: 0 8px 32px rgb(0 0 0 / 14%);
      font-size: 13px;
      line-height: 1.6;
    }
    .ron-ph__sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

    @media (max-width: 800px) {
      .ron-ph__container { width: calc(100% - 40px); }
      .ron-ph__main-inner { gap: 16px; }
      .ron-ph__locale-toggle { width: 160px; }
      .ron-ph__tab { padding-inline: 19px; }
    }
    @media (max-width: 600px) {
      .ron-ph__container { width: calc(100% - 32px); }
      .ron-ph__announcement { min-height: 34px; padding: 5px 12px; font-size: 7.6px; letter-spacing: .65px; line-height: 1.5; }
      .ron-ph__announcement-text { display: block; }
      .ron-ph__announcement-text > span { display: block; }
      .ron-ph__announcement-divider { display: none; }
      .ron-ph__main-inner { min-height: 65px; gap: 10px; }
      .ron-ph__brand { gap: 3px; }
      .ron-ph__brand-title { font-size: 15.5px; letter-spacing: 0; }
      .ron-ph__brand-subtitle { font-size: 7px; letter-spacing: .75px; }
      .ron-ph__actions { gap: 6px; }
      .ron-ph__locale { position: static; }
      .ron-ph__locale-toggle { width: 34px; min-height: 36px; justify-content: center; padding: 4px; }
      .ron-ph__locale-toggle .ron-ph__flag-vn { width: 24px; height: 16px; }
      .ron-ph__locale-toggle .ron-ph__locale-name, .ron-ph__locale-toggle .ron-ph__chevron { display: none; }
      .ron-ph__icon-button { width: 34px; height: 36px; padding: 6px; }
      .ron-ph__icon-button svg { width: 21px; height: 21px; }
      .ron-ph__icon-button--menu { width: 36px; height: 36px; padding: 5px; }
      .ron-ph__icon-button--menu svg { width: 24px; height: 24px; }
      .ron-ph__cart-badge { top: 0; right: 0; min-width: 15px; height: 15px; font-size: 9px; padding: 0 3px; }
      .ron-ph__tabs .ron-ph__container { width: 100%; }
      .ron-ph__tab-track { padding-inline: 16px; }
      .ron-ph__tab { min-height: 49px; padding-inline: 16px; font-size: 12px; letter-spacing: .2px; }
      .ron-ph__language-panel { top: 106px; right: 16px; left: 16px; width: auto; padding: 17px; }
      .ron-ph__country-list { max-height: min(350px, 48vh); }
      .ron-ph__drawer { padding: 24px; }
    }
    @media (max-width: 359px) {
      .ron-ph__brand-title { font-size: 14px; }
      .ron-ph__brand-subtitle { font-size: 6.4px; letter-spacing: .6px; }
      .ron-ph__actions { gap: 4px; }
      .ron-ph__locale-toggle, .ron-ph__icon-button { width: 30px; }
      .ron-ph__icon-button--menu { width: 32px; }
      .ron-ph__main-inner { gap: 7px; }
    }
    @media (prefers-reduced-motion: reduce) {
      .ron-ph *, .ron-ph *::before, .ron-ph *::after { scroll-behavior: auto !important; transition: none !important; animation: none !important; }
    }

    /* V2 — Chỉ thay logo và thêm tìm kiếm; các khối gốc giữ nguyên. */
    .ron-ph__brand { flex-shrink: 1; min-width: 0; max-width: 300px; }
    .ron-ph__brand-logo { display: block; width: 300px; max-width: 100%; height: auto; object-fit: contain; }
    .ron-ph__search { position: relative; z-index: 60; flex: 1 1 320px; min-width: 0; max-width: 520px; margin: 0; }
    .ron-ph__search-shell {
      display: flex; align-items: center; min-width: 0; height: 46px;
      border: 1px solid var(--ron-ph-line); background: #fff;
      transition: border-color .15s, box-shadow .15s;
    }
    .ron-ph__search-shell:focus-within { border-color: #667f12; box-shadow: 0 0 0 1px #667f12; }
    .ron-ph__search-input {
      display: block; width: 100%; min-width: 0; height: 44px; flex: 1;
      margin: 0; padding: 0 14px; border: 0; border-radius: 0; outline: 0;
      background: transparent; color: var(--ron-ph-ink);
      font-family: inherit; font-size: 14px; line-height: 1.4;
      appearance: none; -webkit-appearance: none;
    }
    .ron-ph__search-input::placeholder { color: #77786f; opacity: 1; }
    .ron-ph__search-input::-webkit-search-cancel-button { appearance: none; -webkit-appearance: none; }
    .ron-ph__search-clear, .ron-ph__search-submit {
      display: inline-flex; align-items: center; justify-content: center; flex: 0 0 auto;
      height: 44px; margin: 0; padding: 0; border: 0; border-radius: 0; background: #fff;
    }
    .ron-ph__search-clear { width: 30px; color: var(--ron-ph-muted); }
    .ron-ph__search-submit { width: 46px; border-left: 1px solid var(--ron-ph-line); }
    .ron-ph__search-submit:hover, .ron-ph__search-clear:hover { background: #f7f9ef; }
    .ron-ph__search-clear svg { width: 16px; height: 16px; }
    .ron-ph__search-submit svg { width: 21px; height: 21px; }
    .ron-ph__search-clear svg, .ron-ph__search-submit svg {
      fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round;
    }
    .ron-ph__search-panel {
      position: absolute; top: calc(100% + 8px); right: 0; left: 0;
      padding: 14px; border: 1px solid var(--ron-ph-line);
      border-radius: 4px; background: #fff; box-shadow: 0 12px 36px rgb(13 20 8 / 12%);
      max-height: min(420px, 55vh); overflow-y: auto;
    }
    .ron-ph__search-status { margin: 0; color: var(--ron-ph-muted); font-size: 12px; line-height: 1.6; }
    .ron-ph__search-list { list-style: none; margin: 10px 0 0; padding: 0; }
    .ron-ph__search-list:empty { display: none; }
    .ron-ph__search-list li { margin: 0; padding: 0; }
    .ron-ph__search-result {
      display: block; width: 100%; padding: 11px 10px; border: 0; border-bottom: 1px solid #eeeee8;
      background: #fff; color: var(--ron-ph-ink); text-align: left;
    }
    .ron-ph__search-result:hover, .ron-ph__search-result:focus-visible { background: #f7f9ef; }
    .ron-ph__search-result strong { display: block; font-size: 13px; line-height: 1.5; font-weight: 600; overflow-wrap: anywhere; }
    .ron-ph__search-result small { display: block; margin-top: 3px; color: var(--ron-ph-muted); font-size: 12px; line-height: 1.5; overflow-wrap: anywhere; }
    @media (max-width: 1100px) {
      .ron-ph__main-inner { display: grid; grid-template-columns: minmax(0, 1fr) auto; column-gap: 24px; row-gap: 0; }
      .ron-ph__brand { grid-column: 1; grid-row: 1; min-height: 83px; justify-content: center; }
      .ron-ph__actions { grid-column: 2; grid-row: 1; }
      .ron-ph__search { grid-column: 1 / -1; grid-row: 2; width: 100%; max-width: none; margin-bottom: 12px; }
    }
    @media (max-width: 800px) { .ron-ph__main-inner { column-gap: 16px; } }
    @media (max-width: 600px) {
      .ron-ph__main-inner { column-gap: 10px; }
      .ron-ph__brand { min-height: 65px; }
      .ron-ph__brand-logo { width: 220px; }
      .ron-ph__search-input { padding-inline: 11px; font-size: 16px; }
      .ron-ph__search-input::placeholder { font-size: 13px; }
      .ron-ph__search-panel { padding: 12px; }
    }
    @media (max-width: 359px) {
      .ron-ph__main-inner { column-gap: 7px; }
      .ron-ph__search-input::placeholder { font-size: 12px; }
      .ron-ph__search-submit { width: 40px; }
    }
    /* END RON PRODUCT HEADER CSS */