/* Diễn đàn và Tin tức Du học TQ (/du-hoc/), 07/11/2026. Tiền tố .dh- để không đụng site.css */
.dh-upd{margin-top:12px;display:inline-block;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);color:#fff;border-radius:12px;padding:8px 14px;font-size:15px;line-height:1.5;max-width:100%}
.dh-upd b{color:#BFDBFE}
.dh-gates{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin:22px 0 6px}
.dh-gate{display:flex;align-items:center;gap:14px;padding:18px 20px;border-radius:18px;text-decoration:none;color:#fff;box-shadow:var(--shadow);transition:transform .15s ease,box-shadow .15s ease;min-width:0}
.dh-gate:hover{transform:translateY(-2px)}
.dh-gate.news{background:linear-gradient(135deg,#0B1B3F,#1E3A8A)}
.dh-gate.forum{background:linear-gradient(135deg,#065F46,#0F766E)}
.dh-gate .g-ic{font-size:38px;line-height:1;flex:none}
.dh-gate .g-tx{flex:1;min-width:0}
.dh-gate b{display:block;font-size:21px;font-family:Lexend,"Be Vietnam Pro",sans-serif}
.dh-gate small{display:block;font-size:15px;opacity:.9;margin-top:4px;line-height:1.45}
.dh-gate .g-go{font-size:26px;flex:none}
.dh-sec{padding:26px 0 8px;scroll-margin-top:90px}
.dh-sec h2{font-size:clamp(21px,2.4vw,27px);margin:6px 0 6px;color:var(--navy)}
.dh-mast{display:flex;justify-content:space-between;align-items:flex-end;gap:14px;flex-wrap:wrap;border-bottom:3px double var(--navy);padding-bottom:12px;margin-bottom:14px}
.dh-mast > div:first-child{flex:1 1 420px;min-width:0}
.dh-kicker{display:inline-block;background:var(--navy);color:#fff;border-radius:8px;padding:3px 10px;font-weight:700;font-size:14px}
.dh-kicker.forum{background:#0F766E}
.dh-note{color:var(--muted);font-size:15px;margin:4px 0 0;line-height:1.55}
.dh-today{font-size:15px;color:var(--muted);text-align:right}
.dh-filters{display:flex;flex-direction:column;gap:10px;margin-bottom:14px}
.dh-chips{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px}
.dh-chip{border:1px solid var(--line);background:#fff;border-radius:999px;padding:7px 14px;font-size:15px;cursor:pointer;color:var(--navy);font-family:inherit}
.dh-chip.on{background:var(--blue);border-color:var(--blue);color:#fff}
.dh-chip .n{opacity:.75;font-size:13px;margin-left:4px}
.dh-frow{display:flex;gap:10px;flex-wrap:wrap}
.dh-frow input,.dh-frow select{border:1px solid var(--line);border-radius:10px;padding:9px 12px;font-size:15px;font-family:inherit;background:#fff;min-width:0}
.dh-frow input{flex:1 1 260px}
.dh-frow select{flex:0 1 260px}
/* Trang báo */
.dh-front{display:grid;grid-template-columns:minmax(0,1.6fr) minmax(0,1fr);gap:18px;margin-bottom:18px}
.dh-lead{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;box-shadow:var(--shadow);min-width:0}
.dh-lead .tag{display:inline-block;background:#DBEAFE;color:var(--blue);border-radius:6px;padding:2px 8px;font-size:13px;font-weight:700;margin-right:6px}
.dh-lead h3{font-family:"Noto Serif SC","Be Vietnam Pro",serif;font-size:clamp(21px,2.6vw,28px);line-height:1.35;margin:10px 0;overflow-wrap:anywhere}
.dh-lead h3 a{color:var(--navy);text-decoration:none}
.dh-lead h3 a:hover{text-decoration:underline}
.dh-side{display:flex;flex-direction:column;gap:0;background:#fff;border:1px solid var(--line);border-radius:16px;padding:6px 16px;min-width:0}
.dh-it{display:block;padding:11px 0;border-bottom:1px solid var(--line);min-width:0}
.dh-it:last-child{border-bottom:0}
.dh-it a.t{color:var(--navy);text-decoration:none;font-weight:600;font-size:16px;line-height:1.45;overflow-wrap:anywhere}
.dh-it a.t:hover{text-decoration:underline;color:var(--blue2)}
.dh-meta{font-size:13.5px;color:var(--muted);margin-top:4px;display:flex;gap:6px;flex-wrap:wrap;align-items:center}
.dh-meta .lg{border:1px solid var(--line);border-radius:5px;padding:0 5px;font-size:12.5px}
.dh-meta .new{background:#105DC8;color:#fff;border-radius:5px;padding:0 6px;font-size:12.5px;font-weight:700}
.dh-cols{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.dh-col{background:#fff;border:1px solid var(--line);border-radius:16px;padding:12px 16px;min-width:0}
.dh-col h4{margin:2px 0 4px;font-size:17px;color:var(--navy);border-bottom:2px solid var(--blue2);padding-bottom:6px;display:flex;justify-content:space-between;gap:8px;align-items:baseline}
.dh-col h4 small{font-weight:500;color:var(--muted);font-size:13px}
.dh-col .more{display:inline-block;margin-top:6px;font-size:14.5px;background:none;border:0;color:var(--blue2);cursor:pointer;padding:4px 0;font-family:inherit;font-weight:600}
.dh-list{background:#fff;border:1px solid var(--line);border-radius:16px;padding:4px 18px}
.dh-empty{background:#fff;border:1px dashed var(--line);border-radius:14px;padding:18px;color:var(--muted)}
/* Liên kết trường */
.dh-sgrid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:12px}
.dh-scol{background:#fff;border:1px solid var(--line);border-radius:16px;padding:14px 16px;min-width:0}
.dh-scol h3{margin:0 0 6px;font-size:18px;color:var(--navy)}
.dh-scol ul{list-style:none;margin:0;padding:0}
.dh-scol li{padding:8px 0;border-bottom:1px solid var(--line)}
.dh-scol li:last-child{border-bottom:0}
.dh-scol a{font-weight:600;color:var(--blue);text-decoration:none;overflow-wrap:anywhere}
.dh-scol a:hover{text-decoration:underline}
.dh-scol small{display:block;color:var(--muted);font-size:13.5px;margin-top:2px}
/* Diễn đàn */
.dh-forum .dh-mast{border-bottom-color:#0F766E}
.dh-demo{display:inline-block;background:#E0F2FE;color:#075985;border:1px solid #7DD3FC;border-radius:6px;padding:0 6px;font-size:12.5px;font-weight:700;vertical-align:middle}
.dh-hid{display:inline-block;background:#FEE2E2;color:#991B1B;border-radius:6px;padding:0 6px;font-size:12.5px;font-weight:700}
.dh-post{display:block;background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px 16px;margin-bottom:10px;text-decoration:none;color:inherit;min-width:0}
.dh-post:hover{border-color:var(--blue2)}
.dh-post h3{margin:4px 0 6px;font-size:18px;color:var(--navy);line-height:1.4;overflow-wrap:anywhere}
.dh-post p{margin:0;color:#334155;font-size:15px;line-height:1.55;overflow-wrap:anywhere}
.dh-pcat{font-size:13.5px;color:#0F766E;font-weight:700}
.dh-detail{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px 20px;min-width:0}
.dh-detail h3{font-size:clamp(20px,2.4vw,24px);margin:6px 0 8px;color:var(--navy);overflow-wrap:anywhere}
.dh-body{white-space:pre-wrap;font-size:16px;line-height:1.65;color:#1E293B;overflow-wrap:anywhere}
.dh-cmts{margin-top:16px;border-top:1px solid var(--line);padding-top:10px}
.dh-cmt{padding:10px 0;border-bottom:1px solid var(--line)}
.dh-cmt:last-child{border-bottom:0}
.dh-cmt .who{font-weight:700;color:var(--navy);font-size:15px}
.dh-cmt .txt{white-space:pre-wrap;font-size:15.5px;line-height:1.6;margin-top:3px;overflow-wrap:anywhere}
.dh-form{margin-top:14px;background:#F8FAFC;border:1px solid var(--line);border-radius:14px;padding:14px}
.dh-form label{display:block;font-weight:600;font-size:15px;margin:6px 0 4px}
.dh-form input[type=text],.dh-form textarea,.dh-form select{width:100%;box-sizing:border-box;border:1px solid var(--line);border-radius:10px;padding:10px 12px;font-size:16px;font-family:inherit;background:#fff}
.dh-form textarea{min-height:110px;resize:vertical}
.dh-form .hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.dh-form .acts{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-top:10px}
.dh-msg{font-size:15px;margin-top:8px}
.dh-msg.err{color:#B91C1C}
.dh-msg.ok{color:#047857}
.dh-gatebox{background:#ECFDF5;border:1px solid #6EE7B7;border-radius:14px;padding:14px 16px;margin-bottom:12px;font-size:15.5px;line-height:1.55}
.dh-adm{margin-left:auto;font-size:13.5px}
.dh-adm button{font-size:13.5px;border:1px solid var(--line);background:#fff;border-radius:8px;padding:3px 9px;cursor:pointer;font-family:inherit}
.dh-back{display:inline-block;margin-bottom:10px;font-weight:600;color:var(--blue2);text-decoration:none}
.dh-consult{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;align-items:center;background:linear-gradient(135deg,#EFF6FF,#DBEAFE);border:1px solid #BFDBFE;border-radius:18px;padding:18px 20px}
.dh-consult > div:first-child{flex:1 1 380px;min-width:0}
.dh-consult p{margin:4px 0 0;color:#334155;font-size:15.5px}
.dh-cacts{display:flex;gap:10px;flex-wrap:wrap}
.dh-contact{padding-bottom:30px}
.dh-contact p{font-size:16px}
@media (max-width:1024px){
  .dh-cols,.dh-sgrid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:760px){
  .dh-gates,.dh-front,.dh-cols,.dh-sgrid{grid-template-columns:minmax(0,1fr)}
  .dh-gate{padding:14px 16px}
  .dh-gate b{font-size:19px}
  .dh-gate .g-ic{font-size:32px}
  .dh-today{text-align:left}
  .dh-lead,.dh-detail{padding:16px}
  .dh-list{padding:4px 14px}
}