/* Lớp học AI — giao diện một trang, ưu tiên điện thoại (bám phong cách app Agent SEE) */
:root {
  --muc: #0f3d5c; --nhan: #0a84ff; --xanh-la: #1f9d55; --do: #d64545; --vang: #b45309;
  --nen: #f2f4f7; --the: #ffffff; --vien: #dde4ec; --chu: #1c2733; --chu-mo: #5a6b7c;
}
* { box-sizing: border-box; margin: 0; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  font-size: 15.5px; line-height: 1.6; background: var(--nen); color: var(--chu);
  min-height: 100vh; display: flex; flex-direction: column;
}
#dau {
  position: sticky; top: 0; z-index: 10; background: var(--muc); color: #fff;
  padding: 10px 16px; display: flex; justify-content: space-between; align-items: center;
}
.logo { color: #fff; text-decoration: none; font-weight: 800; font-size: 16px; white-space: nowrap; }
@media (max-width: 620px) { .logo span { display: none; } }
.logo span { font-weight: 400; opacity: .8; font-size: 13px; }
#dau-phai { font-size: 13.5px; display: flex; gap: 10px; align-items: center; }
#dau-phai a, #dau-phai button { color: #fff; background: none; border: 1px solid rgba(255,255,255,.4);
  border-radius: 8px; padding: 4px 10px; font-size: 13px; cursor: pointer; text-decoration: none; }
main { flex: 1; width: 100%; max-width: 760px; margin: 0 auto; padding: 16px 14px 40px; }
#chan { text-align: center; font-size: 12.5px; color: var(--chu-mo); padding: 14px; }
#chan a { color: var(--chu-mo); }

h1 { font-size: 22px; color: var(--muc); margin: 10px 0; line-height: 1.35; }
h2 { font-size: 18px; color: var(--muc); margin: 18px 0 8px; }
.mo { color: var(--chu-mo); font-size: 13.5px; }

.the { background: var(--the); border: 1px solid var(--vien); border-radius: 14px;
  padding: 14px 16px; margin: 10px 0; }
.the.khoa { opacity: .55; }
.the-bai { display: flex; justify-content: space-between; align-items: center; gap: 10px;
  cursor: pointer; transition: transform .08s; }
.the-bai:active { transform: scale(.985); }
.nhan-tuan { display: inline-block; font-size: 12px; font-weight: 700; border-radius: 6px;
  padding: 1px 8px; margin-left: 8px; vertical-align: 2px; }
.nhan-tuan.xong { background: #e3f6ea; color: var(--xanh-la); }
.nhan-tuan.dang_hoc { background: #e5f0ff; color: var(--nhan); }
.nhan-tuan.khoa { background: #eef1f5; color: var(--chu-mo); }
.hieu { font-size: 12.5px; color: var(--chu-mo); }
.mien-phi { color: var(--xanh-la); font-weight: 700; font-size: 12px; }
.tien-trinh { height: 6px; background: var(--nen); border-radius: 3px; margin-top: 8px; overflow: hidden; }
.tien-trinh i { display: block; height: 100%; background: var(--nhan); border-radius: 3px; }
/* thẻ khoá ở đầu trang lớp + dải báo khoá mới (27/09/2026, lớp có ba khoá) */
.luoi-khoa { display: grid; grid-template-columns: 1fr; gap: 0; }
.the-khoa { display: block; text-decoration: none; color: inherit; transition: transform .08s, box-shadow .15s; }
.the-khoa:hover { box-shadow: 0 4px 16px rgba(15,61,92,.1); }
.the-khoa:active { transform: scale(.99); }
.the-khoa h2 { margin: 6px 0 4px; }
.the-khoa .hieu { margin-top: 8px; }
.the-khoa .hieu b { color: var(--nhan); }
.nhan-khoa:empty { display: none; }
.nhan-khoa .nhan-tuan { margin-left: 0; }
.nhan-moi { display: inline-block; font-size: 11.5px; font-weight: 800; color: #fff; background: var(--do);
  border-radius: 6px; padding: 1px 7px; letter-spacing: .3px; }
.nhan-quyen { display: inline-block; font-size: 11.5px; font-weight: 700; color: var(--muc); background: #e5f0ff;
  border-radius: 6px; padding: 1px 7px; }
.bao-moi { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap;
  background: #fff7e6; border: 1px solid #f4c77a; border-radius: 14px; padding: 12px 16px; margin: 12px 0;
  font-size: 14px; }
.bao-moi .chinh { white-space: nowrap; }

button.chinh, a.chinh { display: inline-block; background: var(--nhan); color: #fff; border: none;
  border-radius: 10px; padding: 10px 18px; font-size: 15px; font-weight: 600; cursor: pointer;
  text-decoration: none; }
button.phu { background: #fff; color: var(--muc); border: 1px solid var(--vien); border-radius: 10px;
  padding: 8px 14px; font-size: 14px; cursor: pointer; }
button:disabled { opacity: .5; cursor: default; }

/* bài đọc */
.bai-doc { background: var(--the); border: 1px solid var(--vien); border-radius: 14px; padding: 4px 18px 14px; }
.bai-doc h2, .bai-doc h3, .bai-doc h4 { color: var(--muc); margin: 16px 0 6px; }
.bai-doc p { text-align: justify; margin: 8px 0; }
.bai-doc blockquote { border-left: 4px solid var(--nhan); background: #f7fafd; padding: 8px 12px;
  margin: 10px 0; border-radius: 0 8px 8px 0; font-style: italic; }
.bai-doc ul { padding-left: 20px; } .bai-doc li { margin: 4px 0; text-align: justify; }
.bang-cuon { overflow-x: auto; margin: 10px 0; }
.bai-doc table { border-collapse: collapse; font-size: 13px; min-width: 420px; }
.bai-doc th { background: var(--muc); color: #fff; padding: 5px 8px; text-align: left; }
.bai-doc td { border: 1px solid var(--vien); padding: 5px 8px; vertical-align: top; }
.ghi-video { background: #fff8ec; border: 1px dashed var(--vang); color: var(--vang);
  border-radius: 10px; padding: 8px 12px; font-size: 13.5px; margin: 10px 0; }

/* câu hỏi */
.cau { background: var(--the); border: 1px solid var(--vien); border-radius: 14px; padding: 16px; margin: 12px 0; }
.loi-nhan { background: #f0f6ff; border-radius: 10px; padding: 10px 12px; font-size: 14px;
  color: var(--muc); margin-bottom: 10px; }
.loi-nhan::before { content: "💬 Lời thầy: "; font-weight: 700; }
.cau .de { font-weight: 600; margin-bottom: 10px; }
.lui-cau { margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--vien); }
.pa { display: block; width: 100%; text-align: left; background: #fff; border: 1.5px solid var(--vien);
  border-radius: 10px; padding: 10px 12px; margin: 6px 0; font-size: 14.5px; cursor: pointer; }
.pa.chon { border-color: var(--nhan); background: #f0f6ff; }
.pa.dung { border-color: var(--xanh-la); background: #e3f6ea; }
.pa.sai { border-color: var(--do); background: #fdeaea; }
.ket-qua { border-radius: 10px; padding: 10px 12px; margin-top: 10px; font-size: 14px; }
.ket-qua.dung { background: #e3f6ea; color: #14532d; }
.ket-qua.sai { background: #fdeaea; color: #7f1d1d; }
.ket-qua.cho { background: #fff8ec; color: var(--vang); }
.sx-manh { user-select: none; }
input[type=text], input[type=email], input[type=password], textarea {
  width: 100%; border: 1.5px solid var(--vien); border-radius: 10px; padding: 10px 12px;
  font-size: 15px; font-family: inherit; margin: 6px 0; background: #fff;
}
textarea { min-height: 110px; }
.bang-kiem-xem { background: #f7fafd; border: 1px solid var(--vien); border-radius: 10px;
  padding: 10px 12px; font-size: 13.5px; margin: 8px 0; }
.bang-kiem-xem b { color: var(--muc); }

.thanh-cau { display: flex; gap: 5px; flex-wrap: wrap; margin: 10px 0; }
.thanh-cau i { width: 26px; height: 8px; border-radius: 4px; background: var(--vien); }
.thanh-cau i.dung { background: var(--xanh-la); }
.thanh-cau i.sai { background: var(--do); }
.thanh-cau i.cho { background: var(--vang); }
.thanh-cau i.hien { outline: 2px solid var(--nhan); outline-offset: 1px; }

.hang-thongke { display: flex; gap: 10px; flex-wrap: wrap; margin: 12px 0; }
.o-thongke { flex: 1; min-width: 100px; background: var(--the); border: 1px solid var(--vien);
  border-radius: 12px; padding: 10px; text-align: center; }
.o-thongke b { display: block; font-size: 20px; color: var(--muc); }
.o-thongke span { font-size: 12px; color: var(--chu-mo); }
.huy-hieu { display: inline-block; background: linear-gradient(135deg, #fef3c7, #fde68a);
  border: 1px solid #f59e0b; color: #92400e; border-radius: 999px; padding: 4px 12px;
  font-size: 13px; font-weight: 700; margin: 3px 4px 3px 0; }

#thong-bao { position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%);
  z-index: 50; display: flex; flex-direction: column; gap: 8px; width: min(92vw, 420px); }
.tb { background: var(--muc); color: #fff; border-radius: 12px; padding: 10px 14px;
  font-size: 14px; box-shadow: 0 6px 24px rgba(0,0,0,.25); animation: hien .25s; }
.tb.loi { background: var(--do); }
@keyframes hien { from { opacity: 0; transform: translateY(8px); } }
.trong { text-align: center; color: var(--chu-mo); padding: 30px 10px; }
.xh-hang { display: flex; justify-content: space-between; padding: 6px 2px; border-bottom: 1px solid var(--nen); font-size: 14px; }
.hoi-o { border-top: 1px solid var(--nen); padding: 8px 0; font-size: 14px; }
.hoi-o .tl { background: #f0f6ff; border-radius: 8px; padding: 6px 10px; margin-top: 4px; }
@media (min-width: 700px) { h1 { font-size: 26px; } }

/* thẻ học từng bước (Agent SEE, không video) */
.the-hoc { }
.bai-doc-long h2, .bai-doc-long h3, .bai-doc-long h4 { color: var(--muc); margin: 12px 0 6px; font-size: 16px; }
.bai-doc-long p { text-align: justify; margin: 8px 0; }
.bai-doc-long blockquote { border-left: 4px solid var(--nhan); background: #f7fafd; padding: 8px 12px;
  margin: 10px 0; border-radius: 0 8px 8px 0; font-style: italic; }
.bai-doc-long ul { padding-left: 20px; } .bai-doc-long li { margin: 4px 0; text-align: justify; }
.bai-doc-long table { border-collapse: collapse; font-size: 13px; min-width: 420px; }
.bai-doc-long th { background: var(--muc); color: #fff; padding: 5px 8px; text-align: left; }
.bai-doc-long td { border: 1px solid var(--vien); padding: 5px 8px; vertical-align: top; }

.logo img { height: 30px; width: auto; vertical-align: middle; border-radius: 6px; margin-right: 6px; }
.ve-nha { font-size: 14px; padding: 5px 10px; border: 1px solid rgba(255,255,255,.35);
  border-radius: 8px; margin-right: 10px; white-space: nowrap; }
#dau-phai { display: flex; align-items: center; flex-wrap: nowrap; }
#dau-phai a, #dau-phai span { white-space: nowrap; }

/* Chữ nội dung canh đều (anh Kiên 05/08) — tiêu đề và nút vẫn canh trái */
.the-hoc p, .the-hoc blockquote, .the-hoc li,
.bai-doc p, .bai-doc blockquote, .bai-doc li,
.bai-doc-long p, .bai-doc-long blockquote, .bai-doc-long li,
.ket-qua, .bang-kiem-xem { text-align: justify; }

/* ---------- nhắn tin với thầy ---------- */
.tin { display: flex; flex-direction: column; margin: 8px 0; }
.tin-toi { align-items: flex-end; }
.tin-thay { align-items: flex-start; }
.tin-bong { max-width: 78%; padding: 8px 12px; border-radius: 14px; font-size: 14.5px;
  line-height: 1.5; word-break: break-word; }
.tin-toi .tin-bong { background: var(--nhan, #0a5dc2); color: #fff; border-bottom-right-radius: 4px; }
.tin-thay .tin-bong { background: #eef2f7; color: var(--muc, #16202b); border-bottom-left-radius: 4px; }
.tin-gio { font-size: 11.5px; color: #8a93a2; margin-top: 2px; }
.cham-do { display: inline-block; min-width: 18px; height: 18px; line-height: 18px; text-align: center;
  background: #e03131; color: #fff; border-radius: 9px; font-size: 11.5px; font-weight: 700;
  padding: 0 4px; vertical-align: 2px; }
#chat-o { font: inherit; padding: 8px 10px; border: 1px solid var(--vien, #dde4ec); border-radius: 10px; }

/* thanh đầu trên điện thoại: nhường chỗ cho Hồ sơ + 💬, đừng để nút văng khỏi màn */
@media (max-width: 560px) {
  .an-hep { display: none; }
  #nut-nhan-tin .nt-chu { display: none; }
  #dau-phai { gap: 6px; }
}

/* ảnh + tệp trong tin nhắn */
.tin-anh { max-width: min(260px, 70vw); max-height: 240px; border-radius: 12px;
  border: 1px solid var(--vien); display: block; margin-top: 4px; }
.tin-tep { display: inline-block; margin-top: 4px; padding: 7px 12px; background: #f0f4f9;
  border: 1px solid var(--vien); border-radius: 10px; font-size: 13.5px; text-decoration: none; }

/* ---------- clip bài giảng ----------
   Khung 16:9, nút điều khiển tự dựng (nút sẵn của trình duyệt có mục Tải xuống và
   không chỉnh được tốc độ trên điện thoại). Màu bám bảng màu chung của lớp. */
.clip { margin: 12px 0 4px; }
.clip-khung { position: relative; width: 100%; aspect-ratio: 16 / 9; background: #0b1620;
  border-radius: 14px; overflow: hidden; border: 1px solid var(--vien); }
.clip-khung:focus-visible { outline: 3px solid var(--nhan); outline-offset: 2px; }
.clip-khung video { width: 100%; height: 100%; display: block; object-fit: contain; background: #0b1620; }
.clip-khung video::-webkit-media-controls { display: none !important; }

/* dấu chìm mã học viên — bản quay lén mang sẵn tên người làm rò */
.clip-dau-chim { position: absolute; color: #fff; opacity: .3; font-size: 13px; font-weight: 600;
  letter-spacing: .3px; text-shadow: 0 1px 3px rgba(0,0,0,.65); pointer-events: none;
  user-select: none; transition: all .6s ease; z-index: 3; }

.clip-nut-to { position: absolute; inset: 0; margin: auto; width: 96px; height: 96px;
  border-radius: 50%; border: none; background: rgba(10,132,255,.92); color: #fff;
  cursor: pointer; display: flex; flex-direction: column; align-items: center;
  justify-content: center; gap: 2px; z-index: 4; }
.clip-nut-to span { font-size: 30px; line-height: 1; margin-left: 5px; }
.clip-nut-to em { font-style: normal; font-size: 12.5px; opacity: .9; }
.clip-khung.dang-phat .clip-nut-to { display: none; }

/* Phụ đề tự vẽ, đặt NGAY TRÊN hàng nút (trình duyệt vẽ sát đáy nên đè lên nút) */
.clip-phu-de { position: absolute; left: 5%; right: 5%; bottom: 74px; z-index: 4;
  text-align: center; color: #fff; font-size: 15.5px; line-height: 1.45;
  text-shadow: 0 1px 4px #000, 0 0 10px rgba(0,0,0,.85); pointer-events: none; margin: 0; }
.clip-khung:fullscreen .clip-phu-de { font-size: 22px; bottom: 88px; }

.clip-bao { position: absolute; left: 12px; bottom: 118px; z-index: 5; max-width: 80%;
  background: rgba(15,61,92,.94); color: #fff; padding: 7px 12px; border-radius: 10px;
  font-size: 13px; }
.clip-bao.loi { background: rgba(214,69,69,.95); }

.clip-dieu-khien { position: absolute; left: 0; right: 0; bottom: 0; z-index: 4;
  padding: 22px 10px 8px;
  background: linear-gradient(to top, rgba(0,0,0,.82), rgba(0,0,0,.45) 60%, transparent); }
.clip-thanh { position: relative; height: 16px; display: flex; align-items: center; }
.clip-dem { position: absolute; left: 0; height: 4px; background: rgba(255,255,255,.32);
  border-radius: 2px; pointer-events: none; }
.clip-thanh input { -webkit-appearance: none; appearance: none; width: 100%; height: 4px;
  background: rgba(255,255,255,.22); border-radius: 2px; outline: none; margin: 0;
  position: relative; z-index: 1; cursor: pointer; accent-color: var(--nhan); }
.clip-thanh input::-webkit-slider-thumb { -webkit-appearance: none; width: 13px; height: 13px;
  border-radius: 50%; background: var(--nhan); border: 2px solid #fff; cursor: pointer; }
.clip-thanh input::-moz-range-thumb { width: 11px; height: 11px; border-radius: 50%;
  background: var(--nhan); border: 2px solid #fff; cursor: pointer; }
.clip-thanh input:focus-visible { outline: 2px solid #fff; outline-offset: 3px; }

/* Cho phép XUỐNG DÒNG: màn hẹp mà ép một hàng thì nút toàn màn hình bị cắt cụt
   (đã dính ở khổ 390px). Thà xuống hai hàng còn hơn mất nút. */
.clip-nut { display: flex; align-items: center; gap: 6px; margin-top: 4px;
  flex-wrap: wrap; row-gap: 5px; }
.clip-day { flex: 1; }
.clip-nut button, .clip-nut select { background: rgba(255,255,255,.12); color: #fff;
  border: 1px solid rgba(255,255,255,.22); border-radius: 8px; padding: 4px 9px;
  font-size: 13px; cursor: pointer; line-height: 1.5; }
.clip-nut button:hover, .clip-nut select:hover { background: rgba(255,255,255,.24); }
.clip-nut button:focus-visible, .clip-nut select:focus-visible { outline: 2px solid #fff; }
.clip-nut button.bat { background: var(--nhan); border-color: var(--nhan); }
.clip-gio { color: #fff; font-size: 12.5px; font-variant-numeric: tabular-nums; white-space: nowrap; }
.clip-toc-do { display: inline-flex; }
.an-doc { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; }

/* mục lục chương — nhảy thẳng tới mục cần xem lại */
.clip-chuong { margin-top: 8px; display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.clip-chuong b { font-size: 12.5px; color: var(--chu-mo); font-weight: 600; margin-right: 2px; }
.clip-moc { background: #fff; border: 1px solid var(--vien); border-radius: 999px;
  padding: 4px 11px; font-size: 13px; cursor: pointer; color: var(--muc); }
.clip-moc:hover { border-color: var(--nhan); }
.clip-moc.dang { background: var(--nhan); border-color: var(--nhan); color: #fff; }
.clip-moc-gio { font-variant-numeric: tabular-nums; opacity: .7; margin-right: 3px; }
.clip-moc.dang .clip-moc-gio { opacity: .85; }

/* thẻ gói clip trong màn bài */
.clip-the { background: var(--the); border: 1px solid var(--vien); border-radius: 14px;
  padding: 12px 14px; margin: 10px 0; }
.clip-dinh { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.clip-dinh h2 { margin: 0; font-size: 16.5px; }
.clip-gap { background: none; border: none; color: var(--nhan); font-size: 13.5px;
  cursor: pointer; padding: 4px 6px; }
.clip-xong { color: var(--xanh-la); font-size: 12.5px; font-weight: 700; }
.clip-the.gap .clip { display: none; }

/* dấu 🎬 trên thẻ bài ở danh sách lớp */
.dau-clip { font-size: 12.5px; color: var(--chu-mo); margin-left: 6px; }
.dau-clip.xem-roi { color: var(--xanh-la); }

@media (max-width: 560px) {
  .clip-nut { gap: 4px; }
  .clip-nut button, .clip-nut select { padding: 4px 6px; font-size: 12.5px; }
  .clip-gio { font-size: 11.5px; }
  /* Điện thoại có phím âm lượng cứng — nhường chỗ cho nút toàn màn hình */
  .clip-nut [data-clip="tieng"] { display: none; }
  .clip-dieu-khien { padding: 20px 8px 7px; }
  .clip-nut-to { width: 74px; height: 74px; }
  .clip-nut-to span { font-size: 24px; }
  .clip-dau-chim { font-size: 11px; }
  .clip-phu-de { font-size: 13px; bottom: 68px; left: 3%; right: 3%; }
}

/* ---------- bài đọc nhiều sắc thái (28/09/2026, anh Kiên: "bài mới còn đơn điệu quá") ---------- */
.the-hoc.the-chuyen { background: #fff9ef; border-color: #f2dcb3; }
.the-hoc.the-chuyen h2 { display: flex; align-items: center; gap: 10px; }
.the-hoc.the-chuyen[data-khoa="quyen-loi-nld"] h2::before { content: ""; flex: 0 0 44px; height: 44px;
  border-radius: 50%; background: #fde7c8 url(/hoc/hinh/nld/linh.svg) center / cover no-repeat;
  box-shadow: 0 0 0 2px #fff, 0 0 0 3px #f2dcb3; }
.the-hoc.the-tom { background: linear-gradient(135deg, #eef6ff, #f4fbf6); border-color: #cfe3f7; }
.the-hoc.the-tom .bai-doc-long p { font-size: 17px; text-align: left; }
.thu-ngay { display: inline-block; background: #fff1e6; color: #c2410c; font-weight: 700; border-radius: 6px;
  padding: 0 7px; margin-right: 4px; }

.loi-thoai { margin: 10px 0; max-width: 88%; }
.loi-thoai .nguoi-noi { display: block; font-size: 12px; font-weight: 700; color: var(--chu-mo); margin: 0 0 3px 10px; }
.loi-thoai .bong-bong { background: #eef1f5; border-radius: 16px 16px 16px 4px; padding: 9px 13px; }
.loi-thoai.cua-linh { margin-left: auto; text-align: right; }
.loi-thoai.cua-linh .nguoi-noi { margin: 0 10px 3px 0; color: #b45309; }
.loi-thoai.cua-linh .bong-bong { background: #ffe8cc; border-radius: 16px 16px 4px 16px; text-align: left; }

.hop { border-radius: 12px; padding: 10px 14px; margin: 12px 0; border: 1px solid; }
.hop .hop-nhan { font-size: 12.5px; font-weight: 800; text-transform: uppercase; letter-spacing: .03em; margin-bottom: 4px; }
.hop-bay { background: #fff5ee; border-color: #f7c9a8; } .hop-bay .hop-nhan { color: #c2410c; }
.hop-nho { background: #effaf3; border-color: #bfe5cc; } .hop-nho .hop-nhan { color: var(--xanh-la); }
.hop-luat { background: #f1f6fc; border-color: #cddff2; } .hop-luat .hop-nhan { color: var(--muc); }
.hop-meo { background: #fffbea; border-color: #f1e2a6; } .hop-meo .hop-nhan { color: #92700c; }

.hang-so { display: grid; grid-template-columns: repeat(auto-fit, minmax(128px, 1fr)); gap: 10px; margin: 12px 0; }
.o-so { background: #fff; border: 1px solid var(--vien); border-radius: 12px; padding: 10px 12px; }
.o-so b { display: block; font-size: 26px; line-height: 1.15; color: #e8590c; letter-spacing: -.01em; }
.o-so span { display: block; font-size: 12.5px; color: var(--chu-mo); line-height: 1.35; margin-top: 3px; }

.bai-doc-long li.o-soat { list-style: none; margin-left: -20px; }
.o-soat label { display: flex; gap: 10px; align-items: flex-start; cursor: pointer; padding: 6px 8px;
  border-radius: 8px; background: #f7f9fb; }
.o-soat input { width: 18px; height: 18px; margin-top: 3px; accent-color: var(--xanh-la); flex: 0 0 auto; }
.o-soat input:checked + span { color: var(--xanh-la); }

.hinh-bai { margin: 12px 0; text-align: center; }
.hinh-bai img { max-width: 100%; height: auto; border-radius: 12px; }
.hinh-bai figcaption { font-size: 12.5px; color: var(--chu-mo); margin-top: 4px; }
.loi-dan { color: var(--chu-mo); font-size: 14px; border-bottom: 1px dashed var(--vien); margin-bottom: 8px; }