/* Trang /trong-kinh/ - tròng kính theo hãng */
.tk-page{background:var(--dn-bg,#FAF7F1)}
.tk-hero{background:#E8DCCB;padding:56px 0 36px}
.tk-hero-in{display:flex;flex-direction:column;gap:18px;align-items:flex-start}
.tk-hero h1{margin:0;font-size:clamp(32px,4.4vw,54px);line-height:1.08;color:#1F1B19}
.tk-hero p{margin:0;max-width:62ch;font-size:17px;line-height:1.6;color:#4F4640}
.tk-jump{display:flex;flex-wrap:wrap;gap:10px;margin-top:6px}
.tk-jump a{display:inline-flex;align-items:center;gap:8px;padding:9px 18px;border:1px solid #B9A584;border-radius:999px;background:#FAF7F1;color:#1F1B19;font-size:14px;font-weight:700;letter-spacing:.08em;text-decoration:none}
.tk-jump a:hover{background:#1F1B19;color:#fff}
.tk-flag{width:22px;height:15px;flex:0 0 22px;border-radius:2px;box-shadow:0 0 0 1px rgba(31,27,25,.18)}
.tk-brand{padding:52px 0;scroll-margin-top:84px}
.tk-alt{background:#F0E8DB}
.tk-bh{display:flex;flex-wrap:wrap;align-items:center;gap:6px 16px;margin-bottom:12px}
.tk-bh .dn-eyebrow{flex:0 0 100%}
.tk-bh h2{margin:0;font-size:clamp(28px,3.4vw,42px);line-height:1.05;letter-spacing:.06em;color:#1F1B19}
.tk-country{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:#6F5233;font-weight:600}
.tk-intro{margin:0 0 26px;max-width:78ch;font-size:15.5px;line-height:1.65;color:#4F4640}
.tk-groups{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;align-items:start}
.tk-col{display:flex;flex-direction:column;gap:18px;min-width:0}
.tk-group{background:#fff;border:1px solid #E6DCCD;border-radius:18px;padding:20px 22px;display:flex;flex-direction:column;gap:14px}
.tk-group h3{margin:0;font-size:17px;line-height:1.25;color:#1F1B19;padding-bottom:10px;border-bottom:1px solid #E6DCCD}
.tk-line{display:flex;flex-direction:column;gap:10px}
.tk-ln{display:flex;flex-direction:column;gap:2px}
.tk-ln b{font-size:16px;color:#1F1B19}
.tk-ln span{font-size:13px;color:#7A6A55}
.tk-vars{display:flex;flex-wrap:wrap;gap:10px}
.tk-vars{gap:8px}
.tk-var{box-sizing:border-box;flex:1 1 76px;display:flex;flex-direction:column;align-items:center;gap:2px;min-width:0;padding:8px 6px 9px;background:#FAF7F1;border:1px solid #EADFCB;border-radius:12px}
.tk-var b{font-size:12.5px;font-weight:700;letter-spacing:.06em;color:#8A7A66}
.tk-var span{font-size:14px;font-weight:700;color:#1F1B19;white-space:nowrap}
.tk-var span.tk-ask{font-weight:600;color:#8A7A66}
.tk-hint{margin:-10px 0 16px;font-size:13px;color:#7A6A55}
.tk-hl{position:relative;padding:14px 16px 14px 18px;margin:0 -6px;background:linear-gradient(90deg,#F4E9D4,#FAF3E4);border-radius:14px;border-left:4px solid #6F5233}
.tk-hl .tk-ln b{font-size:20px;color:#1F1B19;letter-spacing:.01em}
.tk-hl .tk-ln span{color:#6F5233;font-weight:600}
.tk-hl .tk-var{background:#fff}
.tk-soon{background:#fff;border:1px dashed #CDBB9F;border-radius:18px;padding:22px 24px;display:flex;flex-direction:column;gap:14px;align-items:flex-start}
.tk-soon p{margin:0;font-size:15px;color:#4F4640}
.tk-sl{display:flex;align-items:center;gap:8px;margin-top:4px;font-size:13px;font-weight:700;color:#6F5233;letter-spacing:.04em}
.tk-sl em{font-style:normal;font-size:11.5px;font-weight:600;color:#6F5233;background:#EFE5D3;border-radius:999px;padding:3px 10px;letter-spacing:.04em}
.tk-sd{margin:-4px 0 0;font-size:12.5px;line-height:1.5;color:#7A6A55}
.tk-gn{margin:-6px 0 0;font-size:12.5px;font-weight:600;color:#6F5233}
.tk-ex{list-style:none;margin:2px 0 0;padding:0;display:flex;flex-direction:column;gap:6px}
.tk-ex li{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:9px 12px;background:#FAF7F1;border:1px solid #E6DCCD;border-radius:10px;font-size:13.5px;color:#1F1B19}
.tk-ex li span{display:flex;flex-direction:column;gap:1px}
.tk-ex li em{font-style:normal;font-size:12px;color:#7A6A55}
.tk-ex li b{color:#6F5233;white-space:nowrap}
.tk-sws{display:flex;flex-wrap:wrap;gap:8px 10px}
.tk-sw{display:inline-flex;align-items:center;gap:7px;padding:4px 12px 4px 5px;background:#FAF7F1;border:1px solid #E6DCCD;border-radius:999px;font-size:12.5px;color:#1F1B19}
.tk-sw i{display:block;width:22px;height:22px;flex:0 0 22px;border-radius:50%;background:radial-gradient(circle at 32% 28%,rgba(255,255,255,.55),rgba(255,255,255,0) 42%),var(--c);box-shadow:0 0 0 1px rgba(31,27,25,.22),inset 0 -2px 4px rgba(0,0,0,.18)}
@media(max-width:560px){.tk-var{flex:1 1 30%}}
.tk-guide{padding:34px 0 8px}
.tk-gh{display:flex;flex-direction:column;gap:4px;margin-bottom:16px}
.tk-gh h2{margin:0;font-size:clamp(22px,2.4vw,30px);line-height:1.15;color:#1F1B19}
.tk-gl{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.tk-gi{display:flex;flex-direction:column;gap:4px;padding:16px 18px;background:#fff;border:1px solid #E6DCCD;border-radius:16px}
.tk-gi b{font-size:26px;line-height:1;color:#6F5233}
.tk-gi span{font-size:14px;line-height:1.4;color:#1F1B19}
.tk-gn2{margin:12px 0 0;font-size:13px;color:#7A6A55}
.tk-rh{margin:22px 0 12px;font-size:16px;color:#1F1B19}
.tk-gl3{grid-template-columns:repeat(3,minmax(0,1fr))}
.tk-gr{flex-direction:row;align-items:center;justify-content:space-between;gap:12px}
.tk-gr b{font-size:24px}
@media(max-width:560px){.tk-gl3{grid-template-columns:1fr}}
.tk-rh0{margin:0 0 8px;font-size:15px;color:#4F4640}
.tk-gu{list-style:none;margin:0 0 6px;padding:0;display:flex;flex-direction:column;border-top:1px solid #E6DCCD}
.tk-gu li{display:flex;gap:14px;align-items:baseline;padding:9px 2px;border-bottom:1px solid #E6DCCD;font-size:14.5px;color:#1F1B19}
.tk-gu li b{flex:0 0 46px;font-size:15px;color:#6F5233}
.tk-rh1{margin:26px 0 12px;font-size:clamp(20px,2.2vw,26px);color:#1F1B19}
.tk-rcs{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px}
.tk-rc{display:flex;flex-direction:column;gap:6px;padding:22px 24px;background:#1F1B19;border-radius:20px;color:#fff}
.tk-rc span{font-size:15px;font-weight:600;letter-spacing:.04em;color:#E8DCCB}
.tk-rc b{font-size:clamp(40px,5vw,60px);line-height:1;color:#fff;letter-spacing:-.01em}
@media(max-width:560px){.tk-rcs{grid-template-columns:1fr}.tk-rc{flex-direction:row;align-items:center;justify-content:space-between}.tk-rc b{font-size:38px}}
@media(max-width:820px){.tk-gl{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:820px){.tk-groups{grid-template-columns:1fr}.tk-brand{padding:36px 0}.tk-hero{padding:36px 0 26px}}

/* Thẻ chỉ có 1 dòng (không có tiêu đề nhóm): tên dòng làm tiêu đề */
.tk-group>.tk-line:first-child:only-child .tk-ln b{font-size:17px}

/* Tên các loại tròng nổi bật hơn */
.tk-ln b{font-size:19px;font-weight:800;color:#1F1B19;line-height:1.25;padding-left:10px;border-left:4px solid #6F5233}
.tk-hl .tk-ln b{font-size:22px}
.tk-group>.tk-line:first-child:only-child .tk-ln b{font-size:19px}
.tk-ln span{padding-left:14px}
@media(max-width:560px){.tk-ln b{font-size:17.5px}.tk-hl .tk-ln b{font-size:20px}}