/* CHIM ÉN VIỆT - giao diện bầu trời xuân và đàn én (mẫu 1259) */
/* Bảng màu: én xanh mực, trời xuân, cỏ xanh, gạch nung, giấy kem */
:root{
  --ink:#2b3a55;
  --ink-deep:#1c2740;
  --ink-2:#141d31;
  --sky:#8ecae6;
  --sky-soft:#bfe0f2;
  --grass:#6a994e;
  --grass-soft:#96bf7c;
  --paper:#f7faee;
  --paper-2:#edf3df;
  --clay:#c2703d;
  --clay-soft:#d98d5c;
  --line:rgba(142,202,230,.45);
  --tx:#2b3140;
  --tx-soft:#6d7688;
  --shadow:0 18px 44px -18px rgba(20,29,49,.4);
  --radius:20px;
  --font-head:'Bricolage Grotesque',serif;
  --font-body:'Be Vietnam Pro',system-ui,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
img{height:auto;max-width:100%;display:block}
a{text-decoration:none;color:inherit}
ul{list-style:none}
body.en-body{
  font-family:var(--font-body);
  color:var(--tx);
  background:var(--paper);
  font-size:16px;line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
.en-shell{max-width:1240px;margin:0 auto;padding:0 24px}
.en-skip{position:absolute;left:-9999px;top:0;background:var(--sky);color:var(--ink-2);padding:10px 18px;z-index:200;border-radius:0 0 12px 0}
.en-skip:focus{left:0}

/* Dây điện với đàn én đậu trên cùng */
.en-wire{position:relative;height:30px;background:linear-gradient(180deg,var(--ink-2),var(--ink));display:flex;justify-content:space-around;align-items:flex-end;padding:0 8vw}
.en-wire::after{content:"";position:absolute;left:0;right:0;bottom:7px;height:2px;background:linear-gradient(90deg,transparent,var(--sky) 12%,var(--sky) 88%,transparent)}
.en-wire i{position:relative;bottom:6px;width:22px;height:11px;background:var(--sky-soft);clip-path:polygon(50% 0,100% 42%,80% 100%,50% 64%,20% 100%,0 42%)}
.en-wire i:nth-child(2n){background:var(--clay-soft);width:17px;height:9px}
.en-wire i:nth-child(3n){width:26px;height:12px;bottom:8px}

/* Đầu trang */
.en-header{position:sticky;top:0;z-index:90;background:rgba(20,29,49,.96);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.en-header-in{display:flex;align-items:center;gap:28px;padding:14px 24px}
.en-brand{display:flex;align-items:center;flex-shrink:0}
.en-brand-img{height:52px;width:auto}
.en-nav{margin-left:auto}
.en-nav-list{display:flex;gap:4px;flex-wrap:wrap}
.en-nav-a{display:block;padding:10px 14px;font-size:14px;font-weight:600;color:var(--paper);border-radius:999px;transition:color .25s,background .25s}
.en-nav-a:hover{color:var(--sky-soft)}
.en-nav-a.is-active{color:var(--ink-2);background:var(--sky)}
.en-burger{display:none;width:46px;height:46px;border:1px solid var(--line);background:transparent;border-radius:12px;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.en-burger span{display:block;width:20px;height:2px;background:var(--sky-soft);border-radius:2px;transition:transform .3s,opacity .3s}
.en-burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.en-burger.is-open span:nth-child(2){opacity:0}
.en-burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* Menu di động: cánh đồng bay trượt từ bên phải */
.en-scrim{position:fixed;inset:0;background:rgba(14,22,38,.78);opacity:0;visibility:hidden;transition:opacity .35s,visibility .35s;z-index:98}
.en-scrim.is-on{opacity:1;visibility:visible}
.en-flymenu{position:fixed;top:0;right:0;bottom:0;z-index:99;width:min(400px,92vw);background:var(--ink-2);transform:translateX(102%);visibility:hidden;transition:transform .45s cubic-bezier(.32,.72,.28,1),visibility .45s;overflow:hidden;box-shadow:-24px 0 60px -30px rgba(10,16,28,.8)}
.en-flymenu.is-open{transform:none;visibility:visible}
.en-wiredeep{position:relative;display:flex;justify-content:space-around;align-items:flex-end;height:26px;background:linear-gradient(180deg,rgba(142,202,230,.14),transparent);margin:14px 18px 0}
.en-wiredeep::after{content:"";position:absolute;left:0;right:0;bottom:5px;height:2px;background:linear-gradient(90deg,transparent,var(--sky-soft) 15%,var(--sky-soft) 85%,transparent)}
.en-wiredeep i{position:relative;bottom:4px;width:18px;height:9px;background:var(--sky-soft);clip-path:polygon(50% 0,100% 42%,80% 100%,50% 64%,20% 100%,0 42%)}
.en-flymenu-in{position:relative;height:100%;display:flex;flex-direction:column;padding:18px 26px 34px;overflow:auto}
.en-flymenu-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.en-flymenu-title{font-family:var(--font-head);font-weight:700;font-size:20px;color:var(--sky-soft)}
.en-flymenu-close{width:46px;height:46px;border:1px solid var(--line);background:transparent;color:var(--sky-soft);font-size:26px;border-radius:50%;cursor:pointer;line-height:1}
.en-flymenu-list{display:flex;flex-direction:column;gap:8px;width:100%}
.en-flymenu-list a{display:flex;align-items:center;gap:14px;padding:13px 18px;border:1px solid rgba(142,202,230,.3);border-radius:18px;color:var(--paper);opacity:0;transform:translateX(26px);transition:transform .5s cubic-bezier(.34,1.4,.64,1),opacity .5s,border-color .25s}
.en-flymenu.is-open .en-flymenu-list a{transform:none;opacity:1}
.en-flymenu.is-open .en-flymenu-list li:nth-child(1) a{transition-delay:.03s}
.en-flymenu.is-open .en-flymenu-list li:nth-child(2) a{transition-delay:.07s}
.en-flymenu.is-open .en-flymenu-list li:nth-child(3) a{transition-delay:.11s}
.en-flymenu.is-open .en-flymenu-list li:nth-child(4) a{transition-delay:.15s}
.en-flymenu.is-open .en-flymenu-list li:nth-child(5) a{transition-delay:.19s}
.en-flymenu.is-open .en-flymenu-list li:nth-child(6) a{transition-delay:.23s}
.en-flymenu.is-open .en-flymenu-list li:nth-child(7) a{transition-delay:.27s}
.en-flymenu.is-open .en-flymenu-list li:nth-child(8) a{transition-delay:.31s}
.en-flymenu.is-open .en-flymenu-list li:nth-child(9) a{transition-delay:.35s}
.en-flymenu-list a:hover{border-color:var(--sky)}
.en-birddot{width:18px;height:10px;flex-shrink:0;background:var(--sky);clip-path:polygon(50% 0,100% 42%,80% 100%,50% 64%,20% 100%,0 42%)}
.en-flymenu-no{font-family:var(--font-head);font-weight:700;color:var(--sky-soft);font-size:14px}
.en-flymenu-name{font-size:16px;font-weight:600}
.en-flymenu-note{margin-top:auto;padding-top:24px;text-align:center;color:var(--sky-soft);font-size:13px;opacity:.85}

/* Khối anh hùng: trời xuân và cánh én */
.en-hero{background:
  radial-gradient(720px 440px at 12% 8%,rgba(142,202,230,.5),transparent 66%),
  radial-gradient(520px 360px at 96% 92%,rgba(106,153,78,.18),transparent 70%),
  linear-gradient(180deg,var(--sky-soft),var(--paper) 78%);
  color:var(--tx);padding:82px 0 96px;overflow:hidden}
.en-hero-in{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.en-hero-kicker{display:flex;align-items:center;gap:10px;color:var(--clay);font-weight:700;letter-spacing:.14em;text-transform:uppercase;font-size:13px;margin-bottom:18px}
.en-hero-title{font-family:var(--font-head);font-weight:800;font-size:clamp(32px,4.4vw,52px);line-height:1.14;margin-bottom:20px;color:var(--ink)}
.en-hero-desc{color:var(--tx-soft);font-size:16.5px;max-width:52ch;margin-bottom:30px}
.en-hero-acts{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:38px}
.en-btn{display:inline-flex;align-items:center;gap:10px;padding:13px 26px;border-radius:999px;font-weight:700;font-size:15px;transition:transform .25s,box-shadow .25s,background .25s,border-color .25s,color .25s;border:1px solid transparent}
.en-btn b{font-weight:700}
.en-btn:hover{transform:translateY(-2px)}
.en-btn-sun{background:var(--sky);color:var(--ink-2);box-shadow:0 12px 26px -12px rgba(142,202,230,.95)}
.en-btn-sun:hover{background:var(--sky-soft)}
.en-btn-gold{background:var(--clay);color:#fff;box-shadow:0 12px 26px -12px rgba(194,112,61,.9)}
.en-btn-gold:hover{background:var(--clay-soft)}
.en-btn-red{background:var(--clay);color:#fff;box-shadow:0 12px 26px -12px rgba(194,112,61,.9)}
.en-btn-red:hover{background:var(--clay-soft)}
.en-btn-leaf{background:var(--grass);color:#fff;box-shadow:0 12px 26px -12px rgba(106,153,78,.85)}
.en-btn-leaf:hover{background:var(--grass-soft);color:var(--ink-2)}
.en-btn-clay{background:var(--clay);color:#fff;box-shadow:0 12px 26px -12px rgba(194,112,61,.9)}
.en-btn-clay:hover{background:var(--clay-soft)}
.en-btn-indigo{background:var(--ink);color:var(--sky-soft);box-shadow:0 12px 26px -12px rgba(43,58,85,.85)}
.en-btn-indigo:hover{background:var(--ink-deep)}
.en-btn-sky{background:var(--sky);color:var(--ink-2);box-shadow:0 12px 26px -12px rgba(142,202,230,.95)}
.en-btn-sky:hover{background:var(--sky-soft)}
.en-btn-line{border-color:var(--ink);color:var(--ink-deep);background:transparent}
.en-btn-line:hover{border-color:var(--ink-deep);color:var(--ink-2);background:rgba(255,255,255,.55)}
.en-btn-ghost{border-color:#cbd8bd;color:var(--tx);background:transparent}
.en-btn-ghost:hover{border-color:var(--grass);color:var(--grass)}
.en-hero-stats{display:flex;gap:38px}
.en-hero-stats li{display:flex;flex-direction:column;gap:4px;border-left:2px solid var(--clay);padding-left:16px}
.en-hero-stats strong{font-family:var(--font-head);font-weight:700;font-size:30px;color:var(--clay)}
.en-hero-stats span{font-size:13px;color:var(--tx-soft)}

.en-wing-wrap{position:relative;max-width:440px;margin:0 auto;width:100%;padding:34px 0}
.en-photo{display:block;position:relative;border-radius:42% 58% 55% 45%/52% 46% 54% 48%;overflow:hidden;border:6px solid var(--sky);box-shadow:0 0 0 10px rgba(142,202,230,.22),var(--shadow)}
.en-photo img{width:100%;aspect-ratio:1;object-fit:cover}
.en-photo-ring{position:absolute;inset:10px;border:2px dashed rgba(43,58,85,.28);border-radius:inherit;pointer-events:none}
.en-swallow{position:absolute;pointer-events:none;background:var(--ink);clip-path:polygon(50% 0,100% 40%,78% 100%,50% 60%,22% 100%,0 40%);opacity:.85;animation:en-fly 6s ease-in-out infinite alternate}
.en-swallow-1{width:64px;height:32px;left:-52px;top:6%;background:var(--clay)}
.en-swallow-2{width:44px;height:22px;right:-34px;top:20%;animation-delay:1.4s;animation-duration:7s}
.en-swallow-3{width:34px;height:17px;left:-20px;bottom:14%;background:var(--grass);animation-delay:2.6s;animation-duration:5.4s}
@keyframes en-fly{from{transform:translate(-10px,-8px) rotate(-6deg)}to{transform:translate(14px,10px) rotate(5deg)}}
.en-flytag{position:absolute;top:2px;right:-4px;background:var(--clay);color:#fff;font-weight:700;font-size:13px;letter-spacing:.12em;padding:8px 16px;border-radius:999px;transform:rotate(5deg);box-shadow:var(--shadow);z-index:2}
.en-photo-cap{position:absolute;bottom:30px;left:0;background:rgba(20,29,49,.92);color:var(--sky-soft);font-size:13px;font-weight:700;padding:8px 14px;border-radius:999px;border:1px solid var(--sky)}

/* Khu vực chung */
.en-section{padding:84px 0}
.en-section-night{background:linear-gradient(180deg,var(--ink),var(--ink-deep));color:var(--paper)}
.en-section-paper{background:var(--paper-2)}
.en-head{margin-bottom:46px}
.en-head-center{text-align:center}
.en-head-split{display:flex;align-items:flex-end;justify-content:space-between;gap:26px;flex-wrap:wrap}
.en-kicker{color:var(--clay);font-weight:700;letter-spacing:.16em;text-transform:uppercase;font-size:12.5px;margin-bottom:10px}
.en-kicker-sky{color:var(--sky-soft)}
.en-h2{font-family:var(--font-head);font-weight:700;font-size:clamp(26px,3.2vw,38px);line-height:1.2;color:var(--ink)}
.en-h2-night{color:var(--paper)}
.en-head-desc{color:var(--tx-soft);max-width:62ch;margin-top:12px}
.en-head-center .en-head-desc{margin-left:auto;margin-right:auto}
.en-head-desc-night{color:#c2cfe3}
.en-no{font-family:var(--font-head);font-weight:700;font-size:12px;letter-spacing:.16em;color:var(--clay)}

/* Thẻ chuyên mục: tổ én với nẹp đuôi én 4x2 */
.en-nests{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.en-nest{display:flex;flex-direction:column;background:#fff;border:1px solid #dde7cc;border-radius:var(--radius);overflow:hidden;height:100%;transition:transform .3s,box-shadow .3s}
.en-nest:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.en-nest-media{display:block;position:relative;overflow:hidden}
.en-nest-media img{width:100%;aspect-ratio:9/6.6;object-fit:cover;transition:transform .5s}
.en-nest:hover .en-nest-media img{transform:scale(1.06)}
.en-nest-tab{position:absolute;top:10px;right:10px;width:36px;height:14px;background:var(--clay);clip-path:polygon(0 0,100% 0,84% 100%,50% 58%,16% 100%);box-shadow:0 4px 10px -4px rgba(20,29,49,.5)}
.en-nest-body{display:flex;flex-direction:column;gap:8px;padding:16px 18px 20px;flex:1}
.en-nest-name{font-family:var(--font-head);font-weight:700;font-size:19px;color:var(--ink)}
.en-nest-desc{font-size:13.5px;color:var(--tx-soft);flex:1}
.en-nest-go{font-size:13.5px;font-weight:700;color:var(--clay)}

/* Tiêu điểm: đường bay đêm */
.en-flight{display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:start}
.en-lead{background:var(--paper);color:var(--tx);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);border:1px solid rgba(142,202,230,.55)}
.en-lead a{display:flex;flex-direction:column;height:100%}
.en-lead-media img{width:100%;aspect-ratio:8/5.2;object-fit:cover}
.en-lead-body{display:flex;flex-direction:column;gap:12px;padding:26px}
.en-chip{display:inline-flex;align-items:center;width:max-content;background:var(--sky);color:var(--ink-2);font-size:12px;font-weight:700;padding:5px 12px;border-radius:999px;letter-spacing:.06em}
.en-lead-title{font-family:var(--font-head);font-weight:700;font-size:23px;line-height:1.3;color:var(--ink)}
.en-lead-desc{color:var(--tx-soft);font-size:14.5px}
.en-lead-meta{display:flex;justify-content:space-between;align-items:center;font-size:13px;color:var(--tx-soft);margin-top:auto}
.en-more{font-weight:700;color:var(--clay);font-size:13.5px}
.en-route{display:flex;flex-direction:column;gap:16px;position:relative;padding-left:44px}
.en-route::before{content:"";position:absolute;left:2px;top:16px;bottom:16px;width:58px;border:3px dashed rgba(191,224,242,.5);border-right:none;border-radius:44px 0 0 44px}
.en-stop a{display:flex;gap:16px;align-items:center;background:rgba(142,202,230,.12);color:var(--paper);border:1px solid rgba(142,202,230,.28);border-radius:18px;padding:16px 20px;position:relative;transition:transform .3s,box-shadow .3s,border-color .25s}
.en-stop a:hover{transform:translateX(8px);border-color:var(--sky)}
.en-stop-pin{flex-shrink:0;width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;background:radial-gradient(circle,var(--sky-soft) 0 30%,var(--sky) 78%);border:2px solid var(--paper);border-radius:50%}
.en-stop-pin b{font-family:var(--font-head);font-weight:700;color:var(--ink-2);font-size:14px}
.en-stop a:hover .en-stop-pin{background:radial-gradient(circle,#fff 0 30%,var(--sky-soft) 78%)}
.en-stop-body{display:flex;flex-direction:column;gap:6px}
.en-stop-title{font-family:var(--font-head);font-weight:700;font-size:16px;line-height:1.34;color:var(--paper)}
.en-stop-meta{display:flex;gap:12px;font-size:12.5px;color:#b9c6dd}
.en-stop-meta i{font-style:normal;color:var(--sky-soft);font-weight:600}

/* Lưới thẻ bài viết */
.en-grid{display:grid;gap:24px}
.en-grid-4{grid-template-columns:repeat(4,1fr)}
.en-card{background:#fff;border-radius:var(--radius);overflow:hidden;border:1px solid #dde7cc;transition:transform .3s,box-shadow .3s}
.en-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.en-card-link{display:flex;flex-direction:column;height:100%}
.en-card-media{position:relative;overflow:hidden;display:block}
.en-card-media img{width:100%;aspect-ratio:8/5.6;object-fit:cover;transition:transform .5s}
.en-card:hover .en-card-media img{transform:scale(1.06)}
.en-card-date{position:absolute;left:12px;bottom:12px;background:var(--sky);color:var(--ink-2);font-style:normal;font-weight:700;font-size:12.5px;padding:6px 13px;letter-spacing:.04em;border-radius:999px}
.en-card-body{display:flex;flex-direction:column;gap:9px;padding:18px;flex:1}
.en-card-cat{font-size:12px;font-weight:700;color:var(--grass);letter-spacing:.1em;text-transform:uppercase}
.en-card-title{font-family:var(--font-head);font-weight:700;font-size:16px;line-height:1.4;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;flex:1}
.en-card-foot{display:flex;justify-content:space-between;align-items:center;font-size:12.5px;color:var(--tx-soft)}

/* Hỏi đáp: mở từng chiếc tổ */
.en-faq-shell{max-width:880px}
.en-faq{display:flex;flex-direction:column;gap:14px}
.en-faq-item{background:#fff;border:1px solid #dde7cc;border-top:4px solid var(--clay);border-radius:16px;overflow:hidden}
.en-faq-item[open]{border-color:var(--clay);box-shadow:0 0 0 1px var(--clay)}
.en-faq-item summary{display:flex;align-items:center;gap:16px;padding:18px 24px;cursor:pointer;list-style:none}
.en-faq-item summary::-webkit-details-marker{display:none}
.en-faq-q{font-family:var(--font-head);font-weight:700;font-size:16.5px;color:var(--ink);flex:1}
.en-faq-ico{position:relative;width:22px;height:22px;flex-shrink:0}
.en-faq-ico::before,.en-faq-ico::after{content:"";position:absolute;background:var(--clay);border-radius:2px;transition:transform .3s}
.en-faq-ico::before{left:0;top:10px;width:22px;height:2px}
.en-faq-ico::after{left:10px;top:0;width:2px;height:22px}
.en-faq-item[open] .en-faq-ico::after{transform:rotate(90deg)}
.en-faq-a{padding:0 24px 20px 62px;color:var(--tx-soft);font-size:14.5px}

/* Dải giới thiệu cỏ xanh */
.en-about{background:
  radial-gradient(680px 380px at 14% 22%,rgba(142,202,230,.3),transparent 70%),
  linear-gradient(180deg,var(--grass),#527d3a);
  color:var(--paper);padding:84px 0}
.en-about-wrap{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.en-about-title{font-family:var(--font-head);font-weight:700;font-size:clamp(26px,3vw,36px);margin-bottom:16px;color:var(--paper)}
.en-about-desc{color:#e6efdc;margin-bottom:28px;max-width:56ch}
.en-about-stats{display:flex;gap:34px;margin-bottom:32px}
.en-about-stats li{display:flex;flex-direction:column;gap:4px;border-left:2px solid var(--sky-soft);padding-left:14px}
.en-about-stats strong{font-family:var(--font-head);font-weight:700;font-size:26px;color:var(--sky-soft)}
.en-about-stats span{font-size:12.5px;color:#cfdec4}
.en-about-media{position:relative}
.en-about-frame{display:block;border:3px solid var(--sky-soft);border-radius:160px 160px 20px 20px;overflow:hidden;box-shadow:var(--shadow)}
.en-about-frame img{width:100%;aspect-ratio:12/8.5;object-fit:cover}
.en-about-cap{position:absolute;bottom:-14px;left:24px;background:var(--clay);color:#fff;font-size:13px;font-weight:700;padding:8px 16px;border-radius:999px;border:2px solid var(--paper)}

/* Băng rôn trang trong */
.en-ibanner{position:relative;background:
  radial-gradient(600px 240px at 90% 0%,rgba(142,202,230,.32),transparent 70%),
  linear-gradient(180deg,var(--ink),var(--ink-deep));color:var(--paper);padding:56px 0;overflow:hidden}
.en-ibanner-sky{position:absolute;inset:0;overflow:hidden;pointer-events:none}
.en-ibanner-sky i{position:absolute;width:150px;height:150px;border-radius:50%;filter:blur(12px);opacity:.5;
  background:radial-gradient(circle,rgba(247,250,238,.4),transparent 70%);animation:en-drift 9s ease-in-out infinite alternate}
.en-ibanner-sky i:nth-child(1){left:6%;top:-40px}
.en-ibanner-sky i:nth-child(2){left:26%;bottom:-60px;width:190px;height:190px;animation-delay:1.4s;background:radial-gradient(circle,rgba(142,202,230,.45),transparent 70%)}
.en-ibanner-sky i:nth-child(3){left:52%;top:-56px;animation-delay:2.6s}
.en-ibanner-sky i:nth-child(4){left:74%;bottom:-48px;width:170px;height:170px;animation-delay:3.4s;background:radial-gradient(circle,rgba(142,202,230,.4),transparent 70%)}
.en-ibanner-sky i:nth-child(5){left:90%;top:-30px;animation-delay:4.2s}
@keyframes en-drift{from{transform:translateY(-14px)}to{transform:translateY(16px)}}
.en-ibanner-in{position:relative}
.en-ibanner-title{font-family:var(--font-head);font-weight:700;font-size:clamp(28px,3.6vw,42px);margin:12px 0 10px;color:var(--paper)}
.en-ibanner-desc{color:#c2cfe3;max-width:64ch;font-size:15px}

/* Đường dẫn */
.en-crumb{padding:18px 0 0}
.en-crumb-list{display:flex;align-items:center;gap:10px;flex-wrap:wrap;list-style:none;margin:0;padding:0;font-size:13.5px;color:#b9c6dd}
.en-crumb-list li{display:flex;align-items:center;gap:10px}
.en-crumb-list li+li::before{content:"\25B8";color:var(--sky-soft);font-size:10px}
.en-crumb-list a{color:var(--sky-soft);font-weight:600}
.en-crumb-list a:hover{text-decoration:underline}
.en-crumb-list strong{color:var(--paper);font-weight:600}
.en-crumb-line{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13.5px;color:var(--tx-soft)}
.en-crumb-line a{color:var(--clay);font-weight:600}
.en-crumb-line a:hover{text-decoration:underline}
.en-crumb-sep{color:var(--clay);font-size:10px}
.en-crumb-now{font-weight:700;color:var(--ink)}
.en-ibanner .en-crumb{padding:0}

/* Đầu trang nội dung */
.en-page{padding-top:56px}
.en-page-head{margin-bottom:40px}
.en-page-h1{font-family:var(--font-head);font-weight:700;font-size:clamp(28px,3.4vw,40px);color:var(--ink);margin-bottom:14px}
.en-page-desc{color:var(--tx-soft);max-width:70ch;margin-bottom:24px}
.en-page-acts{display:flex;gap:14px;flex-wrap:wrap}

/* Chuyên mục khác */
.en-other{margin-top:56px}
.en-block-h,.en-other-title,.en-rel-title{font-family:var(--font-head);font-weight:700;font-size:24px;color:var(--ink);margin-bottom:22px}
.en-other-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.en-other-list a{display:flex;align-items:center;gap:16px;background:#fff;border:1px solid #dde7cc;border-radius:14px;padding:16px 18px;transition:transform .25s,box-shadow .25s}
.en-other-list a:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.en-other-body{display:flex;flex-direction:column;gap:4px;flex:1}
.en-other-body strong{font-family:var(--font-head);font-weight:700;font-size:16px;color:var(--ink)}
.en-other-body span{font-size:13px;color:var(--tx-soft)}
.en-other-go{color:var(--clay);font-size:20px;font-weight:700}

/* Trang danh sách */
.en-list-wrap{display:grid;grid-template-columns:1fr 330px;gap:44px;align-items:start}
.en-rows{display:flex;flex-direction:column;gap:18px}
.en-lrow{background:#fff;border:1px solid #dde7cc;border-radius:var(--radius);overflow:hidden;transition:transform .25s,box-shadow .25s}
.en-lrow:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.en-lrow-link{display:grid;grid-template-columns:230px 1fr 74px}
.en-lrow-media img{width:100%;height:100%;object-fit:cover}
.en-lrow-body{display:flex;flex-direction:column;gap:8px;padding:18px 20px}
.en-lrow-meta i{font-style:normal;font-size:12px;font-weight:700;color:var(--grass);letter-spacing:.1em;text-transform:uppercase}
.en-lrow-title{font-family:var(--font-head);font-weight:700;font-size:18px;line-height:1.34;color:var(--ink)}
.en-lrow-desc{font-size:13.5px;color:var(--tx-soft)}
.en-lrow-date{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;background:var(--ink-2);color:var(--sky-soft);padding:10px}
.en-lrow-date b{font-family:var(--font-head);font-weight:700;font-size:26px;line-height:1}
.en-lrow-date i{font-style:normal;font-size:11px;letter-spacing:.08em;color:var(--sky-soft)}
.en-pagi{display:flex;gap:8px;margin-top:30px;flex-wrap:wrap}
.en-pagi a,.en-pagi button{min-width:42px;height:42px;display:inline-flex;align-items:center;justify-content:center;border:1px solid #dde7cc;background:#fff;color:var(--tx);border-radius:999px;font-weight:700;font-size:14px;cursor:pointer;padding:0 12px;font-family:var(--font-body)}
.en-pagi .is-cur{background:var(--sky);border-color:var(--sky);color:var(--ink-2)}
.en-pagi .is-dis{opacity:.45;pointer-events:none}
.en-pagi a:hover:not(.is-cur){border-color:var(--clay);color:var(--clay)}

/* Cột bên */
.en-side{display:flex;flex-direction:column;gap:26px;position:sticky;top:96px}
.en-side-box{background:#fff;border:1px solid #dde7cc;border-radius:var(--radius);padding:22px}
.en-side-h{font-family:var(--font-head);font-weight:700;font-size:18px;color:var(--ink);margin-bottom:16px;padding-bottom:10px;border-bottom:2px solid var(--sky)}
.en-side-hot{display:flex;flex-direction:column;gap:14px}
.en-side-hot a{display:grid;grid-template-columns:76px 1fr;gap:12px;align-items:center}
.en-side-hot img{width:76px;height:58px;object-fit:cover;border-radius:12px}
.en-side-hot-body{display:flex;flex-direction:column;gap:3px}
.en-side-hot-body strong{font-size:13.5px;font-weight:600;line-height:1.4;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.en-side-hot-body time{font-size:11.5px;color:var(--tx-soft)}
.en-side-more{display:inline-flex;gap:6px;margin-top:16px;font-size:13.5px;font-weight:700;color:var(--clay)}
.en-side-list{display:flex;flex-direction:column;gap:12px}
.en-side-list a{display:flex;gap:12px;align-items:baseline;font-size:13.5px;color:var(--ink)}
.en-side-list a:hover{color:var(--clay)}
.en-dot{width:24px;height:24px;flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;background:var(--sky);color:var(--ink-2);border-radius:50%;font-size:12px;font-weight:800;transform:translateY(4px)}
.en-side-note{background:var(--ink-2);border-color:var(--line)}
.en-side-note .en-side-h{color:var(--sky-soft);border-color:var(--sky)}
.en-side-note p{color:#c2cfe3;font-size:13.5px;margin-bottom:16px}

/* Trang bài viết */
.en-article-wrap{display:grid;grid-template-columns:1fr 330px;gap:44px;align-items:start}
.en-article-h1{font-family:var(--font-head);font-weight:700;font-size:clamp(26px,3vw,38px);line-height:1.3;color:var(--ink);margin-bottom:18px}
.en-article-meta{display:flex;align-items:center;gap:18px;flex-wrap:wrap;font-size:13px;color:var(--tx-soft);margin-bottom:24px}
.en-meta-item b{color:var(--ink)}
.en-article-figure{margin-bottom:26px;border-radius:var(--radius);overflow:hidden;border:1px solid #dde7cc}
.en-article-figure img{width:100%;height:auto}
.en-article-body{font-size:16px;color:var(--tx)}
.en-article-body p{margin-bottom:18px}
.en-article-body h2{font-family:var(--font-head);font-weight:700;font-size:24px;color:var(--ink);margin:34px 0 14px;padding-left:14px;border-left:4px solid var(--sky)}
.en-article-body h3{font-family:var(--font-head);font-weight:700;font-size:19px;color:var(--ink);margin:26px 0 12px}
.en-article-body ul,.en-article-body ol{margin:0 0 18px 22px;list-style:disc}
.en-article-body ol{list-style:decimal}
.en-article-body li{margin-bottom:8px}
.en-article-body img{border-radius:12px;margin:20px 0}
.en-article-body blockquote{border-left:4px solid var(--clay);background:var(--paper-2);padding:16px 20px;border-radius:0 12px 12px 0;margin:0 0 18px;color:var(--tx-soft);font-style:italic}
.en-article-tags{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:30px;padding-top:22px;border-top:1px solid #dde7cc}
.en-tag-label{font-size:13px;color:var(--tx-soft)}
.en-tagx{background:var(--paper-2);border:1px solid #dde7cc;color:var(--tx);font-size:12.5px;font-weight:600;padding:6px 14px;border-radius:999px;transition:all .25s}
.en-tagx:hover{background:var(--sky);border-color:var(--sky);color:var(--ink-2)}
.en-switcher{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:34px 0 44px}
.en-switcher-cell{background:#fff;border:1px solid #dde7cc;border-radius:14px;padding:16px 18px;display:flex;flex-direction:column;gap:6px}
.en-switcher-next{text-align:right}
.en-switcher-label{font-size:12px;font-weight:700;color:var(--clay);letter-spacing:.12em;text-transform:uppercase}
.en-switcher-link{font-family:var(--font-head);font-weight:700;font-size:15px;color:var(--ink)}
.en-switcher-link:hover{color:var(--clay)}
.en-switcher-empty{font-size:13.5px;color:var(--tx-soft)}

/* Liên kết website */
.en-flink{background:var(--paper-2);padding:56px 0}
.en-flink-head{text-align:center;margin-bottom:30px}
.en-flink-title{font-family:var(--font-head);font-weight:700;font-size:24px;color:var(--ink);margin-bottom:8px}
.en-flink-note{color:var(--tx-soft);font-size:14px}
.en-flink-row{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
.en-flink-chip{display:flex;align-items:center;gap:12px;background:#fff;border:1px solid #dde7cc;border-radius:999px;padding:10px 20px 10px 10px;font-weight:600;font-size:14px;color:var(--ink);transition:transform .25s,box-shadow .25s}
.en-flink-chip:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.en-flink-logo{width:44px;height:44px;border-radius:50%;object-fit:cover;border:2px solid var(--sky)}

/* Chân trang */
.en-footer{background:var(--ink-2);color:var(--paper);padding-bottom:36px}
.en-string{display:flex;justify-content:center;gap:14px;padding:20px 0 14px;position:relative}
.en-string::after{content:"";position:absolute;left:8%;right:8%;bottom:16px;height:2px;background:linear-gradient(90deg,transparent,rgba(142,202,230,.5),transparent)}
.en-string i{display:block;position:relative;width:26px;height:13px;background:var(--sky);clip-path:polygon(50% 0,100% 42%,80% 100%,50% 64%,20% 100%,0 42%)}
.en-string i:nth-child(2n){background:var(--clay-soft);width:20px;height:10px}
.en-string i:nth-child(3n){width:30px;height:15px;background:var(--sky-soft)}
.en-string-foot{margin-bottom:32px;border-bottom:1px solid rgba(142,202,230,.22);padding-bottom:24px}
.en-foot-top{display:flex;align-items:center;gap:30px;flex-wrap:wrap;margin-bottom:44px}
.en-fbrand{display:flex;align-items:center}
.en-fbrand-img{height:56px;width:auto}
.en-foot-slogan{color:#b9c6dd;font-size:14px;max-width:52ch}
.en-foot-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(142,202,230,.22);margin-bottom:26px}
.en-foot-h{font-family:var(--font-head);font-weight:700;font-size:17px;color:var(--sky-soft);margin-bottom:16px}
.en-foot-list{display:flex;flex-direction:column;gap:10px}
.en-foot-cats{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.en-foot-list a{color:#dbe4f0;font-size:14px;transition:color .25s,padding-left .25s}
.en-foot-list a:hover{color:var(--sky-soft);padding-left:4px}
.en-foot-info{display:flex;flex-direction:column;gap:12px}
.en-foot-info li{display:flex;flex-direction:column;gap:2px}
.en-foot-key{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--sky-soft);font-weight:700}
.en-foot-val{font-size:14px;color:var(--paper)}
.en-foot-copy{font-size:13px;color:#8d9cb5;margin-bottom:14px}
.en-foot-meta{display:flex;gap:12px;flex-wrap:wrap;align-items:center;font-size:12.5px;color:#8d9cb5}
.en-foot-sitemap{color:var(--sky-soft)}
.en-foot-sitemap:hover{text-decoration:underline}

/* Nút lên đầu trang */
.en-top-btn{position:fixed;right:22px;bottom:22px;width:48px;height:48px;border-radius:999px;background:var(--sky);color:var(--ink-2);border:2px solid var(--sky-soft);font-size:20px;cursor:pointer;opacity:0;visibility:hidden;transform:translateY(10px);transition:all .3s;z-index:80}
.en-top-btn.is-on{opacity:1;visibility:visible;transform:none}
.en-top-btn:hover{background:var(--sky-soft)}

/* Trang 404 */
.en-404{padding:110px 0;background:
  radial-gradient(700px 340px at 50% 0%,rgba(142,202,230,.3),transparent 70%),
  var(--ink-2);color:var(--paper)}
.en-404-board{max-width:640px;margin:0 auto;text-align:center;padding:0 24px}
.en-404-code{display:block;font-family:var(--font-head);font-weight:700;font-size:120px;line-height:1;color:transparent;-webkit-text-stroke:2px var(--sky-soft);margin-bottom:16px}
.en-404-kicker{color:var(--sky-soft);font-weight:700;letter-spacing:.14em;text-transform:uppercase;font-size:13px;margin-bottom:12px}
.en-404-title{font-family:var(--font-head);font-weight:700;font-size:32px;margin-bottom:14px;color:var(--paper)}
.en-404-desc{color:#c2cfe3;margin-bottom:30px}
.en-404-acts{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* Khung phụ: cột nội dung, cột chân trang, mục liên quan */
.en-hero-copy,.en-about-copy,.en-foot-col,.en-list-main,.en-show-main{min-width:0}
.en-foot-base{margin-top:4px}
.en-related{margin-top:8px}

/* Hiệu ứng hiện dần, chỉ bật khi có js */
html.en-js .en-reveal{opacity:0;transform:translateY(26px);transition:opacity .6s ease,transform .6s ease}
html.en-js .en-reveal.is-in{opacity:1;transform:none}

/* Đáp ứng màn hình */
@media(max-width:1100px){
  .en-nests,.en-grid-4{grid-template-columns:repeat(2,1fr)}
  .en-nav{display:none}
  .en-burger{display:flex}
  .en-hero-in{grid-template-columns:1fr;gap:44px}
  .en-wing-wrap{max-width:380px}
}
@media(max-width:900px){
  .en-flight{grid-template-columns:1fr}
  .en-list-wrap,.en-article-wrap{grid-template-columns:1fr}
  .en-side{position:static}
  .en-about-wrap{grid-template-columns:1fr;gap:44px}
  .en-foot-grid{grid-template-columns:1fr;gap:30px}
  .en-other-list{grid-template-columns:1fr}
}
@media(max-width:640px){
  .en-section{padding:60px 0}
  .en-hero{padding:56px 0 64px}
  .en-hero-stats{gap:22px;flex-wrap:wrap}
  .en-nests,.en-grid-4{grid-template-columns:1fr}
  .en-lrow-link{grid-template-columns:120px 1fr}
  .en-lrow-date{display:none}
  .en-switcher{grid-template-columns:1fr}
  .en-switcher-next{text-align:left}
  .en-faq-a{padding-left:24px}
  .en-head-split{align-items:flex-start;flex-direction:column}
  .en-foot-cats{grid-template-columns:1fr 1fr}
  .en-swallow{display:none}
}