.tc1-system-list-wrap{background:#f6f8fb;padding:28px 16px 56px;min-height:60vh}.tc1-system-list{max-width:1160px;margin:0 auto}.tc1-system-breadcrumb{margin-bottom:16px}.tc1-system-list-hero{background:#fff;border:1px solid #e5e9f0;border-radius:22px;padding:30px 34px;box-shadow:0 10px 30px rgba(20,35,60,.05);position:relative;overflow:hidden}.tc1-system-list-hero:after{content:"";position:absolute;width:220px;height:220px;border-radius:50%;right:-80px;top:-120px;background:rgba(37,99,235,.06)}.is-exam .tc1-system-list-hero{border-top:5px solid #f59e0b}.is-advanced .tc1-system-list-hero{border-top:5px solid #10b981}.tc1-system-list-hero-copy{position:relative;z-index:1}.tc1-system-list-kicker{font-size:12px;font-weight:800;letter-spacing:.12em;color:#627087;margin:0 0 7px}.tc1-system-list-hero h1{font-size:34px;line-height:1.25;margin:0 0 10px;color:#142033}.tc1-system-list-hero h1 span{font-size:30px}.tc1-system-list-hero p{font-size:16px;line-height:1.7;color:#596779;max-width:880px;margin:0}.tc1-system-list-meta{display:flex;flex-wrap:wrap;gap:10px 18px;align-items:center;margin-top:18px}.tc1-system-list-meta span{display:inline-flex;border-radius:999px;background:#eef3f8;padding:7px 12px;color:#46566d;font-size:13px;font-weight:800}.tc1-system-list-meta a{font-size:14px;font-weight:800;color:#245db7;text-decoration:none}.tc1-system-block{background:#fff;border:1px solid #e5e9f0;border-radius:22px;padding:28px 30px;margin-top:22px}.tc1-system-block-head{display:flex;justify-content:space-between;gap:18px;align-items:flex-start;margin-bottom:18px}.tc1-system-number{display:inline-flex;align-items:center;justify-content:center;min-width:34px;height:26px;border-radius:999px;background:#eef3f8;color:#5b6575;font-size:12px;font-weight:800;margin-bottom:7px}.tc1-system-block-head h2{font-size:25px;line-height:1.35;margin:0 0 6px;color:#142033}.tc1-system-block-head p{margin:0;color:#6a7585}.tc1-system-feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.tc1-system-feature-card{display:flex;flex-direction:column;gap:7px;border:1px solid #f3dfb1;background:#fffaf0;border-radius:14px;padding:17px;text-decoration:none!important;color:#27354a!important}.tc1-system-feature-card:hover{border-color:#e9c775;transform:translateY(-1px)}.tc1-feature-label{font-size:12px;font-weight:800;color:#a15c00;text-transform:uppercase;letter-spacing:.04em}.tc1-system-feature-card strong{font-size:16px;line-height:1.45}.tc1-system-feature-card>span:last-child{font-size:13px;color:#795a25;font-weight:700}.tc1-system-toc{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 24px}.tc1-system-toc a{display:inline-flex;align-items:center;gap:8px;border:1px solid #e0e6ee;border-radius:999px;background:#f8fafc;padding:8px 12px;font-size:13px;font-weight:800;color:#36465c!important;text-decoration:none!important}.tc1-system-toc a:hover{background:#eef4fb;border-color:#cbd9e9}.tc1-system-toc a span{display:inline-flex;align-items:center;justify-content:center;min-width:22px;height:22px;border-radius:999px;background:#fff;border:1px solid #e1e6ec;font-size:11px}.tc1-system-toc.advanced a{border-color:#cfe9df;background:#f3fbf7}.tc1-system-groups{display:grid;gap:22px}.tc1-system-group{scroll-margin-top:90px;border-top:1px solid #edf0f4;padding-top:20px}.tc1-system-group:first-child{border-top:0;padding-top:0}.tc1-system-group-title{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:12px}.tc1-system-group-title h3{font-size:19px;line-height:1.35;margin:0;color:#213047}.tc1-system-group-title>span{font-size:12px;font-weight:800;color:#66758a;background:#f1f4f8;border-radius:999px;padding:5px 9px;white-space:nowrap}.tc1-system-link-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.tc1-system-list-link{display:grid;grid-template-columns:36px minmax(0,1fr) 18px;align-items:center;gap:8px;border:1px solid #e6eaf0;background:#fbfcfe;border-radius:12px;padding:12px 13px;color:#243149!important;text-decoration:none!important;line-height:1.45}.tc1-system-list-link:hover{border-color:#cbd5e1;background:#f6f8fb}.tc1-item-index{display:flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:9px;background:#eef3f8;color:#5b6678;font-size:11px;font-weight:900}.is-exam .tc1-item-index{background:#fff3d7;color:#a45e00}.is-advanced .tc1-item-index{background:#e9f8f0;color:#0e7b51}.tc1-item-title{min-width:0;font-size:14px;font-weight:700}.tc1-system-list-link b{font-size:20px;color:#93a0b1}.tc1-system-list-link.legacy{grid-template-columns:minmax(0,1fr) 18px;background:#fff}.tc1-legacy-block{border-top-color:#d5dde8}.tc1-system-empty{background:#fff;border:1px solid #e5e9f0;border-radius:16px;padding:22px;margin-top:20px}.is-advanced .tc1-system-list-hero:after{background:rgba(16,185,129,.06)}@media(max-width:900px){.tc1-system-feature-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.tc1-system-link-grid{grid-template-columns:1fr}}@media(max-width:600px){.tc1-system-list-wrap{padding:14px 10px 38px}.tc1-system-list-hero{padding:22px 18px;border-radius:16px}.tc1-system-list-hero h1{font-size:28px}.tc1-system-list-hero p{font-size:15px}.tc1-system-list-meta{align-items:flex-start;flex-direction:column}.tc1-system-block{padding:20px 14px;border-radius:16px;margin-top:14px}.tc1-system-block-head h2{font-size:22px}.tc1-system-feature-grid{grid-template-columns:1fr}.tc1-system-feature-card{padding:14px}.tc1-system-toc{gap:7px;margin-bottom:18px}.tc1-system-toc a{font-size:12px;padding:7px 10px}.tc1-system-group-title{align-items:flex-start}.tc1-system-group-title h3{font-size:17px}.tc1-system-list-link{grid-template-columns:32px minmax(0,1fr) 15px;padding:11px 10px}.tc1-item-index{width:28px;height:28px}.tc1-item-title{font-size:13.5px}.tc1-system-list-link.legacy{grid-template-columns:minmax(0,1fr) 15px}}

/* v1.0.12: split each exam checkpoint into ToanCap1 set and real school/year exams. */
.tc1-exam-source {
  margin-top: 18px;
}

.tc1-exam-source + .tc1-exam-source {
  margin-top: 26px;
  padding-top: 24px;
  border-top: 1px dashed var(--tc-border, #e2e8f0);
}

.tc1-exam-source-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
  padding: 10px 12px;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
}

.tc1-exam-source-head strong {
  color: #0f172a;
  font-size: 15px;
}

.tc1-exam-source-head span {
  flex: 0 0 auto;
  color: #64748b;
  font-size: 13px;
  font-weight: 700;
}

.tc1-exam-source.is-real .tc1-exam-source-head {
  background: #fff7ed;
  border-color: #fed7aa;
}

.tc1-system-list-link.real-exam {
  border-left: 3px solid #f97316;
}

@media (max-width: 640px) {
  .tc1-exam-source-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 3px;
  }
}

/* v1.0.19: all ordinary category archives use the same compact list language. */
.is-category .tc1-system-list-hero{border-top:5px solid #2563eb}
.is-category .tc1-system-list-hero:after{background:rgba(37,99,235,.06)}
.is-category .tc1-item-index{background:#eaf2ff;color:#1d5ec5}
.tc1-category-description{font-size:16px;line-height:1.7;color:#596779;max-width:880px}
.tc1-category-description p{margin:0 0 8px}
.tc1-category-description p:last-child{margin-bottom:0}
.tc1-category-children-block .tc1-system-toc{margin-bottom:0}
.tc1-category-child-nav a{border-color:#d9e5f6;background:#f6f9ff}
.tc1-category-posts-block{overflow:hidden}
.tc1-category-pagination{margin-top:24px;padding-top:18px;border-top:1px solid #edf0f4}
.tc1-category-pagination .nav-links{display:flex;flex-wrap:wrap;gap:7px;justify-content:center}
.tc1-category-pagination .page-numbers{display:inline-flex;align-items:center;justify-content:center;min-width:38px;height:38px;padding:0 10px;border:1px solid #dfe5ed;border-radius:10px;background:#fff;color:#334155;font-weight:800;text-decoration:none}
.tc1-category-pagination .page-numbers.current,.tc1-category-pagination a.page-numbers:hover{border-color:#b9d0f3;background:#eef5ff;color:#1d5ec5}
@media(max-width:600px){.tc1-category-description{font-size:15px}.tc1-category-pagination .page-numbers{min-width:34px;height:34px;padding:0 8px;font-size:13px}}


/* v1.0.20: Bài tập tuần grade categories start directly with the weekly list. */
.tc1-weekly-category-posts{padding-top:22px;padding-bottom:22px}
.tc1-weekly-category-posts .tc1-category-link-grid{margin:0}
.tc1-weekly-list-link .tc1-item-index{background:#eaf2ff;color:#1d5ec5}
@media(max-width:600px){.tc1-weekly-category-posts{padding-top:14px;padding-bottom:14px}}