/* ============================================================
   QUY NHON - mẫu 1457
   Thành cổ giữ kinh nghiệm của người đi trước
   Phông chữ: Vollkorn tiêu đề, Nunito Sans nội dung.
   ============================================================ */
/* Bang mau: tim da, xanh song, cam hoang hon, hong hoa tam giac mach, trang suong */
:root{
  --deo:#4b5844;
  --deo-deep:#273022;
  --song:#78481e;
  --song-deep:#5a3814;
  --nang:#5a73e0;
  --nang-deep:#344eb8;
  --hoa:#a8cdc9;
  --hoa-deep:#759c8f;
  --suong:#ecf0ea;
  --suong-2:#dce4d8;
  --muc:#1d2418;
  --tx:#2d3628;
  --tx-soft:#6d6879;
  --line:#d1dbcd;
  --shadow:0 18px 44px -20px rgb(39,48,34,.5);
  --radius:14px;
  --font-head:'Vollkorn',Georgia,serif;
  --font-body:'Nunito Sans',system-ui,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit}
ul{list-style:none}
body.qnh-body{
  font-family:var(--font-body);
  color:var(--tx);
  background:var(--suong);
  font-size:16px;line-height:1.68;
  -webkit-font-smoothing:antialiased;
  overflow-x:clip;
}
.qnh-shell{max-width:1240px;margin:0 auto;padding:0 24px}
.qnh-skip{position:absolute;left:-9999px;top:0;background:var(--song);color:#fff;padding:10px 18px;z-index:200;border-radius:0 0 14px 0}
.qnh-skip:focus{left:0}

/* Dia tang da phan theo chieu ngang */
.qnh-strata{display:block;height:21px;background:var(--deo)}
.qnh-strata i{display:block;height:7px}
.qnh-strata-a{background:var(--song)}
.qnh-strata-b{background:var(--nang)}
.qnh-strata-c{background:var(--hoa)}

/* Dau trang: nen da toi, chu sang */
.qnh-header{position:sticky;top:0;z-index:90;background:rgb(39,48,34,.97);backdrop-filter:blur(8px);border-bottom:2px solid var(--nang)}
.qnh-header-in{display:flex;align-items:center;gap:28px;padding:13px 24px}
.qnh-brand{display:flex;align-items:center;flex-shrink:0}
.qnh-brand-img{height:52px;width:auto}
.qnh-nav{margin-left:auto}
.qnh-nav-list{display:flex;gap:2px;flex-wrap:wrap}
.qnh-nav-a{display:block;padding:10px 14px;font-size:14px;font-weight:700;color:#e7efe4;border-radius:20px;transition:color .25s,background .25s}
.qnh-nav-a:hover{color:#fff;background:rgb(90,115,224,.22)}
.qnh-nav-a.is-active{color:#0d112b;background:var(--nang)}
.qnh-burger{display:none;width:46px;height:46px;border:2px solid #e7efe4;background:transparent;border-radius:10px;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.qnh-burger span{display:block;width:20px;height:2px;background:#e7efe4;border-radius:2px;transition:transform .3s,opacity .3s}
.qnh-burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.qnh-burger.is-open span:nth-child(2){opacity:0}
.qnh-burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* Phần 01 */
.qnh-mask{position:fixed;inset:0;background:rgb(29,36,24,.76);opacity:0;visibility:hidden;transition:opacity .4s,visibility .4s;z-index:97}
.qnh-mask.is-on{opacity:1;visibility:visible}
.qnh-menu{position:fixed;inset:0;z-index:99;background:
  radial-gradient(660px 400px at 84% 10%,rgb(120,72,30,.4),transparent 66%),
  radial-gradient(560px 380px at 8% 92%,rgb(168,205,201,.28),transparent 68%),
  linear-gradient(180deg,var(--deo-deep),var(--muc));
  opacity:0;visibility:hidden;transition:opacity .45s ease,visibility .45s;overflow:hidden}
.qnh-menu.is-open{opacity:1;visibility:visible}
.qnh-cliff{position:absolute;left:0;top:0;bottom:0;width:24px;background:repeating-linear-gradient(180deg,var(--song) 0 12px,var(--nang) 12px 17px,var(--hoa) 17px 21px);opacity:.8;pointer-events:none}
.qnh-menu-in{position:relative;display:flex;flex-direction:column;justify-content:center;height:100%;padding:52px 34px 44px 58px;overflow-y:auto}
.qnh-menu-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px;max-width:560px;margin-left:auto;margin-right:auto;width:100%}
.qnh-menu-title{font-family:var(--font-head);font-weight:600;font-size:22px;color:var(--suong)}
.qnh-menu-close{width:46px;height:46px;border:2px solid rgb(236,240,234,.5);background:transparent;color:var(--suong);font-size:26px;border-radius:10px;cursor:pointer;line-height:1}
.qnh-menu-list{display:flex;flex-direction:column;gap:12px;max-width:560px;margin:0 auto;width:100%}
.qnh-menu-list a{display:flex;align-items:center;gap:14px;padding:13px 20px;border:2px solid rgb(236,240,234,.28);border-radius:14px;color:var(--suong);background:rgb(236,240,234,.05);opacity:0;transform:translateX(40px);transition:transform .5s cubic-bezier(.2,1,.35,1),opacity .5s,border-color .25s,background .25s}
.qnh-menu.is-open .qnh-menu-list a{transform:none;opacity:1}
.qnh-menu.is-open .qnh-menu-list li:nth-child(1) a{transition-delay:.08s}
.qnh-menu.is-open .qnh-menu-list li:nth-child(2) a{transition-delay:.15s}
.qnh-menu.is-open .qnh-menu-list li:nth-child(3) a{transition-delay:.22s}
.qnh-menu.is-open .qnh-menu-list li:nth-child(4) a{transition-delay:.29s}
.qnh-menu.is-open .qnh-menu-list li:nth-child(5) a{transition-delay:.36s}
.qnh-menu.is-open .qnh-menu-list li:nth-child(6) a{transition-delay:.43s}
.qnh-menu.is-open .qnh-menu-list li:nth-child(7) a{transition-delay:.5s}
.qnh-menu.is-open .qnh-menu-list li:nth-child(8) a{transition-delay:.57s}
.qnh-menu.is-open .qnh-menu-list li:nth-child(9) a{transition-delay:.64s}
.qnh-menu-list a:hover{border-color:var(--nang);background:rgb(90,115,224,.16)}
.qnh-turn{position:relative;flex-shrink:0;width:16px;height:16px;border-radius:50%;border:3px solid var(--nang);background:transparent}
.qnh-turn::after{content:"";position:absolute;right:-7px;top:3px;width:8px;height:6px;border-top:3px solid var(--nang);border-right:3px solid var(--nang);border-radius:0 4px 0 0}
.qnh-menu-no{font-family:var(--font-body);font-weight:800;color:var(--hoa);font-size:12px;letter-spacing:.14em;flex-shrink:0}
.qnh-menu-name{font-size:16px;font-weight:700;flex:1}
.qnh-menu-note{margin-top:26px;text-align:center;color:#a9a3b6;font-size:13px}

/* Khu vực chính: con de, vong cong da va duong quanh dan */
.qnh-hero{position:relative;background:
  radial-gradient(720px 420px at 88% 6%,rgb(120,72,30,.42),transparent 66%),
  radial-gradient(600px 380px at 4% 94%,rgb(90,115,224,.24),transparent 70%),
  linear-gradient(180deg,var(--deo-deep),var(--deo));
  color:var(--suong);padding:84px 0 110px;overflow:hidden}
.qnh-hero-in{display:grid;grid-template-columns:1.04fr .96fr;gap:56px;align-items:center;position:relative;z-index:2}
.qnh-hero-kicker{display:flex;align-items:center;gap:10px;color:var(--nang);font-weight:800;letter-spacing:.18em;text-transform:uppercase;font-size:13px;margin-bottom:18px}
.qnh-hero-title{font-family:var(--font-head);font-weight:700;font-size:clamp(30px,3.9vw,47px);line-height:1.24;margin-bottom:20px;color:#fff}
.qnh-hero-desc{color:rgb(236,240,234,.86);font-size:16.5px;max-width:52ch;margin-bottom:30px}
.qnh-hero-acts{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:38px}
.qnh-btn{display:inline-flex;align-items:center;gap:10px;padding:13px 26px;border-radius:24px;font-weight:800;font-size:15px;border:2px solid transparent;transition:transform .25s,box-shadow .25s,background .25s,border-color .25s,color .25s}
.qnh-btn:hover{transform:translateY(-2px)}
.qnh-btn-sun{background:var(--nang);color:#0d112b;box-shadow:0 12px 26px -14px rgb(90,115,224,.95)}
.qnh-btn-sun:hover{background:var(--nang-deep);color:#fff}
.qnh-btn-mist{border-color:rgb(236,240,234,.6);color:var(--suong);background:transparent}
.qnh-btn-mist:hover{background:var(--suong);color:var(--deo-deep)}
.qnh-btn-ghost{border-color:#c4d0be;color:var(--tx);background:transparent}
.qnh-btn-ghost:hover{border-color:var(--song);color:var(--song-deep)}
.qnh-hero-stats{display:flex;gap:36px}
.qnh-hero-stats li{display:flex;flex-direction:column;gap:4px;border-left:4px solid var(--nang);padding-left:16px}
.qnh-hero-stats li:nth-child(2){border-left-color:var(--song)}
.qnh-hero-stats li:nth-child(3){border-left-color:var(--hoa)}
.qnh-hero-stats strong{font-family:var(--font-head);font-weight:700;font-size:30px;color:#fff}
.qnh-hero-stats span{font-size:13px;color:rgb(236,240,234,.7)}

/* Vong cong da: khum vong cong, hoa tam giac mach, duong quanh dan */
.qnh-gatewrap{position:relative;max-width:470px;margin:0 auto;width:100%;padding:14px 0 40px}
.qnh-haze{position:absolute;left:6%;right:6%;top:44px;height:64%;background:linear-gradient(118deg,transparent 32%,rgb(236,240,234,.4) 47%,transparent 60%);z-index:3;pointer-events:none;animation:qnh-haze-run 5.2s ease-in-out infinite alternate}
@keyframes qnh-haze-run{from{transform:translateX(-16px);opacity:.45}to{transform:translateX(16px);opacity:1}}
.qnh-gate{position:relative;display:block;margin:0 auto;width:min(400px,100%);background:var(--song);padding:12px;border:3px solid var(--nang);outline:2px dashed rgb(236,240,234,.5);outline-offset:6px;border-radius:200px 200px 16px 16px/230px 230px 16px 16px;box-shadow:var(--shadow);z-index:2}
.qnh-gate img{width:100%;aspect-ratio:9/6.4;object-fit:cover;border-radius:190px 190px 10px 10px/220px 220px 10px 10px;border:2px solid var(--song-deep)}
.qnh-road{position:absolute;left:0;right:0;bottom:6px;display:flex;justify-content:center;gap:22px;z-index:3}
.qnh-road i{display:block;width:26px;height:14px;border-bottom:3px dashed var(--nang);border-radius:0 0 26px 26px}
.qnh-bloom{position:absolute;right:-6px;top:24px;display:flex;flex-direction:column;gap:14px;z-index:4}
.qnh-bloom b{display:block;width:16px;height:16px;border-radius:50% 50% 50% 0;background:var(--hoa);border:2px solid var(--suong);transform:rotate(-45deg)}
.qnh-bloom b:nth-child(2){width:12px;height:12px;margin-left:10px;opacity:.85}
.qnh-bloom b:nth-child(3){width:9px;height:9px;margin-left:20px;opacity:.7}
.qnh-gatetag{position:absolute;left:-4px;top:44px;background:var(--nang);color:#0d112b;font-weight:800;font-size:11.5px;letter-spacing:.1em;padding:9px 14px;border:2px solid var(--suong);border-radius:20px;transform:rotate(-3deg);box-shadow:var(--shadow);z-index:4}
.qnh-gate-cap{position:absolute;left:50%;bottom:0;transform:translateX(-50%);background:var(--song);color:#fff;font-size:13px;font-weight:700;padding:8px 18px;border-radius:20px;border:2px solid var(--nang);white-space:nowrap;z-index:4}
.qnh-strata-cut{position:absolute;left:0;right:0;bottom:0;height:66px;display:block;z-index:1}
.qnh-strata-cut i{position:absolute;left:0;right:0;bottom:0}
.qnh-strata-cut .qnh-strata-a{height:66px;background:rgb(236,240,234,.22);clip-path:polygon(0 46%,100% 0,100% 100%,0 100%)}
.qnh-strata-cut .qnh-strata-b{height:44px;background:rgb(236,240,234,.55);clip-path:polygon(0 50%,100% 0,100% 100%,0 100%)}
.qnh-strata-cut .qnh-strata-c{height:24px;background:var(--suong);clip-path:polygon(0 58%,100% 0,100% 100%,0 100%)}

/* Khu vuc chung */
.qnh-section{padding:84px 0}
.qnh-section-rock{background:
  radial-gradient(700px 380px at 86% 6%,rgb(120,72,30,.34),transparent 70%),
  radial-gradient(560px 340px at 6% 94%,rgb(168,205,201,.22),transparent 70%),
  linear-gradient(180deg,var(--deo-deep),var(--deo));color:var(--suong)}
.qnh-section-mist{background:var(--suong-2)}
.qnh-head{margin-bottom:46px}
.qnh-head-center{text-align:center}
.qnh-head-split{display:flex;align-items:flex-end;justify-content:space-between;gap:26px;flex-wrap:wrap}
.qnh-kicker{color:var(--song-deep);font-weight:800;letter-spacing:.2em;text-transform:uppercase;font-size:12.5px;margin-bottom:10px}
.qnh-kicker-mist{color:var(--nang)}
.qnh-h2{font-family:var(--font-head);font-weight:700;font-size:clamp(26px,3vw,36px);line-height:1.26;color:var(--muc)}
.qnh-h2-mist{color:var(--suong)}
.qnh-head-desc{color:var(--tx-soft);max-width:62ch;margin-top:12px}
.qnh-head-center .qnh-head-desc{margin-left:auto;margin-right:auto}
.qnh-head-desc-mist{color:rgb(236,240,234,.85)}
.qnh-turn-no{display:inline-block;font-family:var(--font-body);font-weight:800;font-size:11.5px;letter-spacing:.16em;color:#3f5d55;background:rgb(168,205,201,.4);border:1px solid var(--hoa-deep);padding:3px 10px;border-radius:14px}

/* Phần 02 */
.qnh-ravine-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.qnh-ravine{display:flex;flex-direction:column;background:#fff;border:2px solid var(--deo);border-radius:0 0 14px 14px;overflow:hidden;height:100%;transition:transform .3s,box-shadow .3s,border-color .3s}
.qnh-ravine:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--song)}
.qnh-ravine-media{display:block;position:relative;overflow:hidden}
.qnh-ravine-media img{width:100%;aspect-ratio:9/6;object-fit:cover;transition:transform .5s}
.qnh-ravine-media::after{content:"";position:absolute;left:0;right:0;top:0;height:10px;background:linear-gradient(90deg,var(--song),var(--nang))}
.qnh-ravine:hover .qnh-ravine-media img{transform:scale(1.06)}
.qnh-ravine-body{display:flex;flex-direction:column;gap:9px;padding:16px 18px 20px;flex:1}
.qnh-ravine-name{font-family:var(--font-head);font-weight:700;font-size:19px;color:var(--muc)}
.qnh-ravine-desc{font-size:13.5px;color:var(--tx-soft);flex:1}
.qnh-ravine-go{font-size:13.5px;font-weight:800;color:var(--song-deep)}

/* Phần 03 */
.qnh-grid{display:grid;gap:24px}
.qnh-grid-4{grid-template-columns:repeat(4,1fr)}

/* Tieu diem: 1 bai dan dau ngang + 4 bai theo hang */
.qnh-ridge{display:flex;flex-direction:column;gap:26px}
.qnh-lead{background:var(--suong);color:var(--tx);border:2px solid var(--nang);border-radius:14px;overflow:hidden;box-shadow:var(--shadow)}
.qnh-lead-link{display:grid;grid-template-columns:1fr 1fr;align-items:stretch}
.qnh-lead-media{display:block;position:relative;overflow:hidden}
.qnh-lead-media img{width:100%;height:100%;aspect-ratio:9/6;object-fit:cover}
.qnh-lead-body{display:flex;flex-direction:column;gap:12px;padding:28px 30px}
.qnh-chip{display:inline-flex;align-items:center;width:max-content;background:var(--song);color:#fff;font-size:12px;font-weight:800;padding:5px 13px;border-radius:16px;letter-spacing:.06em}
.qnh-lead-title{font-family:var(--font-head);font-weight:700;font-size:23px;line-height:1.32;color:var(--muc)}
.qnh-lead-desc{color:var(--tx-soft);font-size:14.5px}
.qnh-lead-meta{display:flex;justify-content:space-between;align-items:center;font-size:13px;color:var(--tx-soft);margin-top:auto}
.qnh-more{font-weight:800;color:var(--song-deep);font-size:13.5px}
.qnh-quads{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.qnh-quad{background:var(--suong);color:var(--tx);border:2px solid rgb(236,240,234,.4);border-radius:14px;overflow:hidden;transition:transform .3s,box-shadow .3s,border-color .3s}
.qnh-quad:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:var(--nang)}
.qnh-quad-link{display:flex;flex-direction:column;height:100%}
.qnh-quad-media{position:relative;overflow:hidden;display:block}
.qnh-quad-media img{width:100%;aspect-ratio:8/5.2;object-fit:cover}
.qnh-quad-no{position:absolute;right:10px;top:10px;min-width:34px;height:30px;padding:0 8px;display:inline-flex;align-items:center;justify-content:center;background:var(--nang);color:#0d112b;font-weight:800;font-size:12.5px;font-style:normal;border-radius:16px}
.qnh-quad-body{display:flex;flex-direction:column;gap:7px;padding:15px 16px 18px;flex:1}
.qnh-quad-cat{font-size:11.5px;font-weight:800;color:var(--hoa-deep);letter-spacing:.1em;text-transform:uppercase}
.qnh-quad-title{font-family:var(--font-head);font-weight:600;font-size:15.5px;line-height:1.4;color:var(--muc);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;flex:1}
.qnh-quad-meta{font-size:12.5px;color:var(--tx-soft)}

/* Phần 04 */
.qnh-card{position:relative;background:#fff;border:2px solid var(--deo);border-radius:14px;overflow:hidden;transition:transform .3s,box-shadow .3s}
.qnh-card::after{content:"";position:absolute;left:0;right:0;bottom:0;height:5px;background:linear-gradient(90deg,var(--nang),var(--hoa));opacity:0;transition:opacity .3s}
.qnh-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.qnh-card:hover::after{opacity:1}
.qnh-card-link{display:flex;flex-direction:column;height:100%}
.qnh-card-media{position:relative;overflow:hidden;display:block}
.qnh-card-media img{width:100%;aspect-ratio:8/5.6;object-fit:cover;transition:transform .5s}
.qnh-card:hover .qnh-card-media img{transform:scale(1.06)}
.qnh-card-date{position:absolute;left:12px;bottom:12px;min-width:52px;height:34px;padding:0 10px;border-radius:16px;background:var(--nang);color:#0d112b;display:inline-flex;align-items:center;justify-content:center;font-style:normal;font-weight:800;font-size:12px;border:2px solid var(--suong)}
.qnh-card-body{display:flex;flex-direction:column;gap:9px;padding:18px;flex:1}
.qnh-card-cat{font-size:12px;font-weight:800;color:var(--song-deep);letter-spacing:.1em;text-transform:uppercase}
.qnh-card-title{font-family:var(--font-head);font-weight:600;font-size:16px;line-height:1.44;color:var(--muc);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;flex:1}
.qnh-card-foot{display:flex;justify-content:space-between;align-items:center;font-size:12.5px;color:var(--tx-soft)}

/* Hoi dap */
.qnh-faq-shell{max-width:880px}
.qnh-faq{display:flex;flex-direction:column;gap:14px}
.qnh-faq-item{background:#fff;border:2px solid var(--deo);border-left:8px solid var(--nang);border-radius:14px;overflow:hidden}
.qnh-faq-item:nth-child(2n){border-left-color:var(--song)}
.qnh-faq-item[open]{box-shadow:var(--shadow)}
.qnh-faq-item summary{display:flex;align-items:center;gap:16px;padding:18px 24px;cursor:pointer;list-style:none}
.qnh-faq-item summary::-webkit-details-marker{display:none}
.qnh-faq-q{font-family:var(--font-head);font-weight:600;font-size:16px;line-height:1.4;color:var(--muc);flex:1}
.qnh-faq-ico{position:relative;width:22px;height:22px;flex-shrink:0}
.qnh-faq-ico::before,.qnh-faq-ico::after{content:"";position:absolute;background:var(--muc);border-radius:2px;transition:transform .3s}
.qnh-faq-ico::before{left:0;top:10px;width:22px;height:2px}
.qnh-faq-ico::after{left:10px;top:0;width:2px;height:22px}
.qnh-faq-item[open] .qnh-faq-ico::after{transform:rotate(90deg)}
.qnh-faq-a{padding:0 24px 20px 62px;color:var(--tx-soft);font-size:14.5px}

/* Dai gioi thieu */
.qnh-about{background:
  radial-gradient(640px 340px at 12% 12%,rgb(120,72,30,.34),transparent 70%),
  radial-gradient(560px 320px at 90% 92%,rgb(90,115,224,.22),transparent 70%),
  linear-gradient(180deg,var(--deo-deep),var(--deo));
  color:var(--suong);padding:84px 0}
.qnh-about-wrap{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.qnh-about-media{position:relative}
.qnh-about-frame{display:block;border:3px solid var(--nang);outline:2px dashed rgb(236,240,234,.5);outline-offset:6px;border-radius:200px 200px 16px 16px/230px 230px 16px 16px;overflow:hidden;box-shadow:var(--shadow)}
.qnh-about-frame img{width:100%;aspect-ratio:12/8.5;object-fit:cover}
.qnh-about-cap{position:absolute;bottom:-14px;left:24px;background:var(--hoa);color:#2f4a41;font-size:13px;font-weight:800;padding:8px 16px;border-radius:20px;border:2px solid var(--suong)}
.qnh-about-title{font-family:var(--font-head);font-weight:700;font-size:clamp(26px,3vw,36px);margin-bottom:16px;color:var(--suong)}
.qnh-about-desc{color:rgb(236,240,234,.86);margin-bottom:28px;max-width:56ch}
.qnh-about-stats{display:flex;gap:32px;margin-bottom:32px}
.qnh-about-stats li{display:flex;flex-direction:column;gap:4px;border-left:4px solid var(--song);padding-left:14px}
.qnh-about-stats li:nth-child(2){border-left-color:var(--nang)}
.qnh-about-stats li:nth-child(3){border-left-color:var(--hoa)}
.qnh-about-stats strong{font-family:var(--font-head);font-weight:700;font-size:26px;color:#fff}
.qnh-about-stats span{font-size:12.5px;color:#a9a3b6}

/* Bang ron trang trong */
.qnh-ibanner{position:relative;background:
  radial-gradient(620px 240px at 88% 0%,rgb(120,72,30,.4),transparent 70%),
  linear-gradient(180deg,var(--deo-deep),var(--deo));color:var(--suong);padding:56px 0;overflow:hidden}
.qnh-ibanner-strata{position:absolute;inset:0;overflow:hidden;pointer-events:none}
.qnh-ibanner-strata i{position:absolute;height:10px;left:0;right:0;opacity:.5}
.qnh-ibanner-strata i:nth-child(1){top:12%;background:var(--song)}
.qnh-ibanner-strata i:nth-child(2){top:36%;background:var(--nang);opacity:.35}
.qnh-ibanner-strata i:nth-child(3){top:60%;background:var(--hoa);opacity:.28}
.qnh-ibanner-strata i:nth-child(4){top:80%;background:var(--song);opacity:.2}
.qnh-ibanner-strata i:nth-child(5){top:94%;background:var(--nang);opacity:.18}
.qnh-ibanner-in{position:relative}
.qnh-ibanner-kicker{font-weight:800;letter-spacing:.22em;text-transform:uppercase;font-size:12px;color:var(--nang);margin-bottom:8px}
.qnh-ibanner-title{font-family:var(--font-head);font-weight:700;font-size:clamp(28px,3.4vw,42px);margin-bottom:10px;color:var(--suong)}
.qnh-ibanner-desc{color:rgb(236,240,234,.85);max-width:64ch;font-size:15px}

/* Duong dan */
.qnh-crumb{padding:18px 0 0}
.qnh-crumb-line{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:13.5px;color:var(--tx-soft)}
.qnh-crumb-line a{color:var(--song-deep);font-weight:700}
.qnh-crumb-line a:hover{text-decoration:underline}
.qnh-crumb-sep{color:var(--hoa-deep)}
.qnh-crumb-now{font-weight:800;color:var(--muc)}

/* Trang trong */
.qnh-page{padding-top:56px}
.qnh-page-head{margin-bottom:40px}
.qnh-page-h1{font-family:var(--font-head);font-weight:700;font-size:clamp(28px,3.2vw,40px);color:var(--muc);margin-bottom:14px}
.qnh-page-desc{color:var(--tx-soft);max-width:70ch;margin-bottom:24px}
.qnh-page-acts{display:flex;gap:14px;flex-wrap:wrap}

/* Chuyen muc khac */
.qnh-other{margin-top:56px}
.qnh-block-h{font-family:var(--font-head);font-weight:700;font-size:24px;color:var(--muc);margin-bottom:22px}
.qnh-other-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.qnh-other-list a{display:flex;align-items:center;gap:16px;background:#fff;border:2px solid var(--deo);border-radius:14px;padding:16px 18px;transition:transform .25s,box-shadow .25s,border-color .25s}
.qnh-other-list a:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--nang)}
.qnh-other-body{display:flex;flex-direction:column;gap:4px;flex:1}
.qnh-other-body strong{font-family:var(--font-head);font-weight:600;font-size:16px;color:var(--muc)}
.qnh-other-body span{font-size:13px;color:var(--tx-soft)}
.qnh-other-go{color:var(--song-deep);font-size:20px;font-weight:800}

/* Trang danh sach */
.qnh-list-wrap{display:grid;grid-template-columns:1fr 330px;gap:44px;align-items:start}
.qnh-rows{display:flex;flex-direction:column;gap:18px}
.qnh-lrow{background:#fff;border:2px solid var(--deo);border-radius:14px;overflow:hidden;transition:transform .25s,box-shadow .25s,border-color .25s}
.qnh-lrow:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--song)}
.qnh-lrow-link{display:grid;grid-template-columns:230px 1fr 74px}
.qnh-lrow-media img{width:100%;height:100%;object-fit:cover}
.qnh-lrow-body{display:flex;flex-direction:column;gap:8px;padding:18px 20px}
.qnh-lrow-meta i{font-style:normal;font-size:12px;font-weight:800;color:var(--song-deep);letter-spacing:.1em;text-transform:uppercase}
.qnh-lrow-title{font-family:var(--font-head);font-weight:600;font-size:18px;line-height:1.36;color:var(--muc)}
.qnh-lrow-desc{font-size:13.5px;color:var(--tx-soft)}
.qnh-lrow-date{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;background:var(--deo);color:var(--suong);padding:10px}
.qnh-lrow-date b{font-family:var(--font-head);font-weight:700;font-size:26px;line-height:1;color:var(--nang)}
.qnh-lrow-date i{font-style:normal;font-size:11px;letter-spacing:.08em;color:var(--suong)}
.qnh-pagi{display:flex;gap:8px;margin-top:30px;flex-wrap:wrap}
.qnh-pagi a{min-width:42px;height:42px;display:inline-flex;align-items:center;justify-content:center;border:2px solid var(--deo);background:#fff;color:var(--tx);border-radius:21px;font-weight:800;font-size:14px;cursor:pointer;padding:0 12px}
.qnh-pagi .is-cur{background:var(--nang);border-color:var(--nang);color:#0d112b}
.qnh-pagi .is-dis{opacity:.45;pointer-events:none}
.qnh-pagi a:hover:not(.is-cur){border-color:var(--nang);color:var(--song-deep)}

/* Cot ben */
.qnh-side{display:flex;flex-direction:column;gap:26px;position:sticky;top:96px}
.qnh-side-box{background:#fff;border:2px solid var(--deo);border-radius:14px;padding:22px}
.qnh-side-h{font-family:var(--font-head);font-weight:700;font-size:18px;color:var(--muc);margin-bottom:16px;padding-bottom:10px;border-bottom:3px solid var(--nang)}
.qnh-side-hot{display:flex;flex-direction:column;gap:14px}
.qnh-side-hot a{display:grid;grid-template-columns:76px 1fr;gap:12px;align-items:center}
.qnh-side-hot img{width:76px;height:58px;object-fit:cover;border-radius:10px;border:2px solid var(--song)}
.qnh-side-hot-body{display:flex;flex-direction:column;gap:3px}
.qnh-side-hot-body strong{font-size:13.5px;font-weight:700;line-height:1.4;color:var(--muc);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.qnh-side-hot-body time{font-size:11.5px;color:var(--tx-soft)}
.qnh-side-more{display:inline-flex;gap:6px;margin-top:16px;font-size:13.5px;font-weight:800;color:var(--song-deep)}
.qnh-side-list{display:flex;flex-direction:column;gap:12px}
.qnh-side-list a{display:flex;gap:12px;align-items:baseline;font-size:13.5px;color:var(--muc)}
.qnh-side-list a:hover{color:var(--song-deep)}
.qnh-dot{width:24px;height:24px;flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;background:var(--suong);border:3px solid var(--nang);border-radius:50%;font-size:11px;font-weight:800;transform:translateY(4px)}
.qnh-side-note{background:var(--deo);border-color:var(--deo)}
.qnh-side-note .qnh-side-h{color:var(--suong);border-color:var(--nang)}
.qnh-side-note p{color:rgb(236,240,234,.85);font-size:13.5px;margin-bottom:16px}

/* Trang bai viet */
.qnh-article-wrap{display:grid;grid-template-columns:1fr 330px;gap:44px;align-items:start}
.qnh-article-h1{font-family:var(--font-head);font-weight:700;font-size:clamp(26px,3vw,38px);line-height:1.3;color:var(--muc);margin-bottom:18px}
.qnh-article-meta{display:flex;align-items:center;gap:18px;flex-wrap:wrap;font-size:13px;color:var(--tx-soft);margin-bottom:24px}
.qnh-meta-item b{color:var(--song-deep)}
.qnh-article-figure{margin-bottom:26px;border-radius:14px;overflow:hidden;border:2px solid var(--deo)}
.qnh-article-figure img{width:100%;height:auto}
.qnh-article-body{font-size:16px;color:var(--tx)}
.qnh-article-body p{margin-bottom:18px}
.qnh-article-body h2{font-family:var(--font-head);font-weight:700;font-size:24px;color:var(--muc);margin:34px 0 14px;padding-left:14px;border-left:5px solid var(--nang)}
.qnh-article-body h3{font-family:var(--font-head);font-weight:600;font-size:19px;color:var(--muc);margin:26px 0 12px}
.qnh-article-body ul,.qnh-article-body ol{margin:0 0 18px 22px;list-style:disc}
.qnh-article-body ol{list-style:decimal}
.qnh-article-body li{margin-bottom:8px}
.qnh-article-body img{border-radius:12px;margin:20px 0}
.qnh-article-body blockquote{border-left:5px solid var(--song);background:var(--suong-2);padding:16px 20px;border-radius:0 12px 12px 0;margin:0 0 18px;color:var(--tx-soft);font-style:italic}
.qnh-article-tags{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:30px;padding-top:22px;border-top:2px solid var(--line)}
.qnh-tag-label{font-size:13px;color:var(--tx-soft)}
.qnh-tag{background:var(--suong-2);border:2px solid var(--deo);color:var(--tx);font-size:12.5px;font-weight:700;padding:6px 14px;border-radius:18px;transition:all .25s}
.qnh-tag:hover{background:var(--song);border-color:var(--song);color:#fff}
.qnh-switcher{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:34px 0 44px}
.qnh-switcher-cell{background:#fff;border:2px solid var(--deo);border-radius:14px;padding:16px 18px;display:flex;flex-direction:column;gap:6px}
.qnh-switcher-next{text-align:right}
.qnh-switcher-label{font-size:12px;font-weight:800;color:var(--song-deep);letter-spacing:.12em;text-transform:uppercase}
.qnh-switcher-link{font-family:var(--font-head);font-weight:600;font-size:15px;color:var(--muc)}
.qnh-switcher-link:hover{color:var(--song-deep)}
.qnh-switcher-empty{font-size:13.5px;color:var(--tx-soft)}
.qnh-related{margin-top:8px}

/* Lien ket website */
.qnh-flink{background:var(--suong-2);padding:56px 0}
.qnh-flink-head{text-align:center;margin-bottom:30px}
.qnh-flink-title{font-family:var(--font-head);font-weight:700;font-size:24px;color:var(--muc);margin-bottom:8px}
.qnh-flink-note{color:var(--tx-soft);font-size:14px}
.qnh-flink-row{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
.qnh-flink-chip{display:flex;align-items:center;gap:12px;background:#fff;border:2px solid var(--deo);border-radius:24px;padding:10px 18px 10px 10px;font-weight:700;font-size:14px;color:var(--muc);transition:transform .25s,box-shadow .25s,border-color .25s}
.qnh-flink-chip:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--nang)}
.qnh-flink-logo{width:44px;height:44px;border-radius:12px;object-fit:cover;border:2px solid var(--song)}

/* Chan trang */
.qnh-footer{background:var(--muc);color:var(--suong);padding-bottom:36px}
.qnh-foot-strata{display:flex;justify-content:center;gap:14px;padding:20px 0 14px;position:relative}
.qnh-foot-strata::before{content:"";position:absolute;left:10%;right:10%;top:16px;height:3px;background:var(--song);opacity:.7}
.qnh-foot-strata i{display:block;width:14px;height:14px;border-radius:50% 50% 50% 0;background:var(--hoa);transform:rotate(-45deg);position:relative;z-index:1}
.qnh-foot-strata i:nth-child(2n){background:var(--nang);opacity:.8}
.qnh-foot-strata i:nth-child(3n){background:var(--song)}
.qnh-foot-top{display:flex;align-items:center;gap:30px;flex-wrap:wrap;margin-bottom:44px}
.qnh-fbrand{display:flex;align-items:center;background:#fff;border-radius:14px;padding:6px 10px}
.qnh-fbrand-img{height:52px;width:auto}
.qnh-foot-slogan{color:#a9a3b6;font-size:14px;max-width:52ch}
.qnh-foot-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgb(236,240,234,.18);margin-bottom:26px}
.qnh-foot-h{font-family:var(--font-head);font-weight:700;font-size:17px;color:var(--suong);margin-bottom:16px}
.qnh-foot-list{display:flex;flex-direction:column;gap:10px}
.qnh-foot-cats{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.qnh-foot-list a{color:#d8e2d4;font-size:14px;transition:color .25s,padding-left .25s}
.qnh-foot-list a:hover{color:var(--nang);padding-left:4px}
.qnh-foot-info{display:flex;flex-direction:column;gap:12px}
.qnh-foot-info li{display:flex;flex-direction:column;gap:2px}
.qnh-foot-key{font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--hoa);font-weight:800}
.qnh-foot-val{font-size:14px;color:var(--suong)}
.qnh-foot-copy{font-size:13px;color:#8d879c;margin-bottom:14px}
.qnh-foot-meta{display:flex;gap:12px;flex-wrap:wrap;align-items:center;font-size:12.5px;color:#8d879c}
.qnh-foot-sitemap{color:var(--nang)}
.qnh-foot-sitemap:hover{text-decoration:underline}

/* Nut len dau trang */
.qnh-top-btn{position:fixed;right:22px;bottom:22px;width:48px;height:48px;border-radius:24px;background:var(--song);color:#fff;border:2px solid var(--nang);font-size:20px;cursor:pointer;opacity:0;visibility:hidden;transform:translateY(10px);transition:all .3s;z-index:80}
.qnh-top-btn.is-on{opacity:1;visibility:visible;transform:none}
.qnh-top-btn:hover{background:var(--song-deep)}

/* Trang Trang 404 */
.qnh-404{padding:110px 0;background:
  radial-gradient(700px 340px at 50% 0%,rgb(120,72,30,.4),transparent 70%),
  var(--muc);color:var(--suong)}
.qnh-404-board{position:relative;max-width:640px;margin:0 auto;text-align:center;padding:0 24px}
.qnh-404-strata{position:absolute;left:0;right:0;top:-40px;height:60px;display:flex;justify-content:space-between;pointer-events:none}
.qnh-404-strata i{display:block;width:16px;height:16px;border-radius:50% 50% 50% 0;background:var(--hoa);transform:rotate(-45deg);animation:qnh-bob 4.2s ease-in-out infinite alternate}
.qnh-404-strata i:nth-child(2n){background:var(--nang);animation-delay:.7s}
.qnh-404-strata i:nth-child(3n){background:var(--song);animation-delay:1.4s}
@keyframes qnh-bob{from{transform:translateY(-6px) rotate(-45deg)}to{transform:translateY(6px) rotate(-45deg)}}
.qnh-404-code{display:block;font-family:var(--font-head);font-weight:700;font-size:118px;line-height:1;color:transparent;-webkit-text-stroke:2px var(--nang);margin-bottom:16px}
.qnh-404-kicker{color:var(--hoa);font-weight:800;letter-spacing:.18em;text-transform:uppercase;font-size:13px;margin-bottom:12px}
.qnh-404-title{font-family:var(--font-head);font-weight:700;font-size:32px;margin-bottom:14px;color:var(--suong)}
.qnh-404-desc{color:rgb(236,240,234,.85);margin-bottom:30px}
.qnh-404-acts{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* Khung phu */
.qnh-hero-copy,.qnh-about-copy,.qnh-foot-col,.qnh-list-main,.qnh-show-main,.qnh-lead-body{min-width:0}
.qnh-foot-base{margin-top:4px}

/* Hieu ung hien dan, chi bat khi co js */
html.qnh-js .qnh-reveal{opacity:0;transform:translateY(26px);transition:opacity .6s ease,transform .6s ease}
html.qnh-js .qnh-reveal.is-in{opacity:1;transform:none}

/* Dap ung man hinh */
@media(max-width:1100px){
  .qnh-ravine-grid,.qnh-grid-4,.qnh-quads{grid-template-columns:repeat(2,1fr)}
  .qnh-nav{display:none}
  .qnh-burger{display:flex}
  .qnh-hero-in{grid-template-columns:1fr;gap:44px}
  .qnh-gatewrap{max-width:430px}
}
@media(max-width:900px){
  .qnh-lead-link{grid-template-columns:1fr}
  .qnh-list-wrap,.qnh-article-wrap{grid-template-columns:1fr}
  .qnh-side{position:static}
  .qnh-about-wrap{grid-template-columns:1fr;gap:44px}
  .qnh-foot-grid{grid-template-columns:1fr;gap:30px}
  .qnh-other-list{grid-template-columns:1fr}
}
@media(max-width:640px){
  .qnh-section{padding:60px 0}
  .qnh-hero{padding:60px 0 96px}
  .qnh-hero-stats{gap:20px;flex-wrap:wrap}
  .qnh-ravine-grid,.qnh-grid-4,.qnh-quads{grid-template-columns:1fr}
  .qnh-lrow-link{grid-template-columns:120px 1fr}
  .qnh-lrow-date{display:none}
  .qnh-switcher{grid-template-columns:1fr}
  .qnh-switcher-next{text-align:left}
  .qnh-faq-a{padding-left:24px}
  .qnh-head-split{align-items:flex-start;flex-direction:column}
  .qnh-foot-cats{grid-template-columns:1fr 1fr}
  .qnh-gate{width:100%}
  .qnh-gatetag{font-size:10px;padding:7px 11px}
  .qnh-404-code{font-size:88px}
}

/* ---------- Lớp bổ trợ ---------- */
.qnh-quote,
.qnh-quote-in { }

/* ---------- Khối khác biệt hoá ---------- */
.qnh-band{background:rgb(61,145,59);color:qnh-related;border-top:1px solid rgba(0,0,0,.12);border-bottom:1px solid rgba(0,0,0,.12);padding:16px 0}
.qnh-band-in{max-width:1200px;margin:0 auto;padding:0 20px;display:flex;gap:40px;justify-content:center;flex-wrap:wrap;font-size:12.5px;font-weight:700;letter-spacing:.16em;text-transform:uppercase}
.qnh-band-in span{display:inline-flex;align-items:center;gap:10px}
.qnh-band-in span::before{content:"";width:8px;height:8px;border-radius:50%;background:rgb(71,209,129)}
.qnh-stat{background:qnh-related;padding:44px 0}
.qnh-stat-in{max-width:1200px;margin:0 auto;padding:0 20px;display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.qnh-stat-cell{background:#fff;border:1px solid rgba(0,0,0,.08);border-radius:16px;padding:26px 18px;text-align:center}
.qnh-stat-cell b{display:block;font-family:var(--font-head,Vollkorn,serif);font-size:34px;line-height:1.1;color:rgb(61,145,59)}
.qnh-stat-cell span{display:block;margin-top:8px;font-size:13px;color:rgb(31,51,31);opacity:.8}
.qnh-quote{background:rgb(31,51,31);color:qnh-related;padding:52px 0}
.qnh-quote-in{max-width:900px;margin:0 auto;padding:0 20px;text-align:center;font-family:var(--font-head,Vollkorn,serif);font-size:26px;line-height:1.5}
@media(max-width:900px){.qnh-band-in{justify-content:flex-start;flex-wrap:nowrap;overflow-x:auto;gap:28px}.qnh-stat-in{grid-template-columns:repeat(2,1fr)}.qnh-quote-in{font-size:20px}}
@media(min-width:1025px){.qnh-hero-in{grid-template-columns:1.16fr .84fr}}
@media(min-width:1025px){.qnh-list-wrap{grid-template-columns:330px 1fr}.qnh-article-wrap{grid-template-columns:330px 1fr}.qnh-list-wrap .qnh-list-main{grid-column:2;grid-row:1}.qnh-article-wrap .qnh-show-main{grid-column:2;grid-row:1}.qnh-list-wrap .qnh-side{grid-column:1;grid-row:1}.qnh-article-wrap .qnh-side{grid-column:1;grid-row:1}}