/* ---- p_51_su-templates.css ---- */
/* =====================================================================
   SCRIPT TEMPLATES (.sk-tk) — “xưởng tài liệu / document studio”: giấy kem #f5f4f1, trang A4 trắng có bóng + lề kẻ cam,
   bút dạ cam nhạt ở chữ đã điền, nhãn .DOCX (đen) / .XLSX (viền cam), kẹp giấy, con dấu BẢN NHÁP (Anton).
   Chuyển động: chồng giấy xòe quạt (hero) · chữ hiện như đang gõ khi đổi brief · dấu đóng xuống · mở khóa rõ dần + đường quét cam.
   Hệ màu: cam / đen / trắng (+ xám, cam nhạt, giấy). Một font Be Vietnam Pro.
   ===================================================================== */
.sk-tk{--bg:#f5f4f1;--bg2:#ecebe6;--card:#fff;--ink:#0a0a0c;--mut:#56565e;--ln:rgba(10,10,12,.14);
  --ac:#ff6a13;--ac2:#ff8c42;--aci:#0a0a0c;--hl:#ffc59a;--r:6px;--hfw:800;--hls:-.04em;--ease:cubic-bezier(.16,1,.3,1);
  --paper:0 1px 0 rgba(10,10,12,.06),0 22px 44px -26px rgba(10,10,12,.38),0 4px 10px -6px rgba(10,10,12,.16);font-variant-numeric:tabular-nums}
.sk-tk :focus-visible{outline:3px solid var(--ac);outline-offset:2px}
.sk-tk h3,.sk-tk h4{margin:0}
.sk-tk .btn-f{color:#0a0a0c}
.sk-tk .btn-g{border:2px solid var(--ink);color:var(--ink);background:transparent}
.sk-tk .btn .s-ico,.tk-peek .s-ico,.tk-tel .s-ico,.tk-acc summary .s-ico,.tk-custom .sq-add .s-ico{width:auto;height:auto;margin:0;background:none;border-radius:0;display:inline-grid;color:inherit}
.tk-custom .sq-add .s-ico svg{width:16px;height:16px;stroke-width:2.2}
.sk-tk .btn .kxi{width:18px;height:18px}
.sk-tk .btn .s-ico svg,.sk-tk .btn svg.kxi{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
@media(hover:hover){.sk-tk .btn-g:hover{background:var(--ink);color:#fff}}
.sk-tk .kxi{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:none}

/* tiêu đề mục */
.tk-hd{max-width:760px;margin-bottom:clamp(22px,4vw,40px)}
.tk-no{display:inline-flex;align-items:center;gap:10px;margin:0 0 12px!important;font:700 12px/1 var(--fb);letter-spacing:.14em;text-transform:uppercase;color:var(--mut)}
.tk-no b{display:inline-grid;place-items:center;min-width:34px;height:24px;padding:0 8px;background:var(--ink);color:#fff;border-radius:3px;letter-spacing:.04em}
.tk-hd .s-h{font-size:clamp(30px,8vw,60px);line-height:1.08;text-wrap:balance}
.tk-hd .s-lead{font-size:16px;line-height:1.6}
.tk-hd .s-lead b{color:var(--ink)}
.tk-hl{background:linear-gradient(104deg,transparent .08em,var(--hl) .12em,#ffd8bb calc(100% - .14em),transparent calc(100% - .08em)) 0 88%/100% 42% no-repeat;padding:0 .06em;box-decoration-break:clone;-webkit-box-decoration-break:clone}

/* nhãn định dạng */
.tk-fmt,.tk-sh-tag{display:inline-flex;align-items:center;height:22px;padding:0 7px;border-radius:3px;background:var(--ink);color:#fff;font:800 12px/1 var(--fb);letter-spacing:.05em}
.tk-fmt.is-x,.tk-sh-tag.is-x{background:#fff;color:var(--ink);box-shadow:inset 0 0 0 2px var(--ac)}

/* ================= HERO ================= */
.tk-hero{position:relative;overflow:hidden;background:var(--bg)}
.tk-hero::before{content:"";position:absolute;inset:0 0 auto;height:calc(78px + env(safe-area-inset-top,0px));background:#0a0a0c;z-index:-1}
.tk-ruled{position:absolute;inset:78px 0 0;pointer-events:none;z-index:-1;
  background:linear-gradient(90deg,transparent 0 calc(var(--gut) - 8px),rgba(255,106,19,.35) calc(var(--gut) - 8px) calc(var(--gut) - 7px),transparent 0),
  repeating-linear-gradient(180deg,transparent 0 33px,rgba(10,10,12,.07) 33px 34px)}
.tk-hero-in{display:grid;gap:clamp(18px,4vw,48px);align-items:center}
.tk-kick{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin:0 0 14px!important;font:700 13px/1.3 var(--fb);letter-spacing:.08em;text-transform:uppercase;color:var(--mut)}
.tk-title{font-size:clamp(54px,15vw,132px);line-height:.98;letter-spacing:-.055em}
.tk-title .s-ml{padding-bottom:.08em}
.tk-sub{font-size:clamp(17px,1.6vw,21px)!important;color:var(--ink)!important;max-width:34ch}
.tk-btns .btn{min-height:52px;display:inline-flex;align-items:center;gap:8px}
.tk-facts{list-style:none;margin:22px 0 0;padding:0;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;max-width:520px}
.tk-facts li{background:#fff;border:1px solid var(--ln);border-radius:var(--r);padding:10px 10px 9px;box-shadow:0 1px 0 rgba(10,10,12,.05)}
.tk-facts b{display:block;font:800 22px/1 var(--fb);letter-spacing:-.03em}
.tk-facts span{display:block;margin-top:4px;font-size:12.5px;line-height:1.3;color:var(--mut)}

/* chồng giấy xòe quạt */
.tk-fan{position:relative;height:clamp(300px,86vw,420px);max-width:520px;width:100%;margin-inline:auto}
.tk-sh{position:absolute;left:50%;top:6%;width:min(58%,270px);aspect-ratio:1/1.414;margin-left:calc(min(58%,270px) / -2);background:#fff;border-radius:3px;box-shadow:var(--paper);padding:14px 12px;display:flex;flex-direction:column;gap:7px;
  transform-origin:50% 92%;transition:transform 1.1s var(--ease);transition-delay:calc(var(--k)*90ms)}
.tk-sh b{font:800 12px/1.25 var(--fb);letter-spacing:.04em;color:var(--ink);margin-top:2px}
.tk-sh .tk-sh-tag{align-self:flex-start;height:20px;font-size:12px}
.tk-ln{display:block;height:6px;border-radius:2px;background:#e6e5e0;width:92%}.tk-ln.s{width:58%}.tk-ln.m{width:76%}
.tk-grid{flex:1;margin-top:4px;background:linear-gradient(90deg,rgba(10,10,12,.1) 1px,transparent 1px) 0 0/22% 100%,linear-gradient(rgba(10,10,12,.1) 1px,transparent 1px) 0 0/100% 12px;border:1px solid rgba(10,10,12,.12)}
.tk-sh:nth-child(1){transform:rotate(-15deg) translateX(-30%)}
.tk-sh:nth-child(2){transform:rotate(-7deg) translateX(-13%)}
.tk-sh:nth-child(3){transform:rotate(4deg) translateX(10%)}
.tk-sh-top{transform:rotate(-1deg) translateX(-2%);z-index:2;padding:16px 14px 14px 22px}
.tk-sh-top::before{content:"";position:absolute;left:13px;top:0;bottom:0;width:1px;background:rgba(255,106,19,.45)}
.tk-type{display:grid;gap:5px;font-size:12px;line-height:1.35;color:#2a2a30;min-height:56%;transition:opacity .4s}
.tk-type.is-clr{opacity:0}
.tk-type p{display:flex;gap:6px}
.tk-type b{flex:none;color:var(--ac);font-weight:800;font-size:12px;letter-spacing:0;margin:0}
.tk-clipi{position:absolute;width:16px;height:44px;top:-12px;left:28px;fill:none;stroke:#8d8d95;stroke-width:2.4;stroke-linecap:round}
.tk-stamp{position:absolute;color:var(--ac);border:3px double currentColor;border-radius:6px;padding:.18em .45em .1em;line-height:1;letter-spacing:.06em;transform:rotate(-12deg);opacity:.92;pointer-events:none;white-space:nowrap;background:rgba(255,255,255,.35)}
.tk-stamp-h{right:10px;bottom:14px;font-size:20px}
@media(prefers-reduced-motion:no-preference){
  .kx-js .tk-fan:not(.is-fan) .tk-sh{transform:rotate(0) translateX(0)}
  .tk-type p:last-child span::after{content:"";display:inline-block;width:1px;height:1em;margin-left:2px;vertical-align:-2px;background:var(--ac);animation:tkCaret .8s steps(1) infinite}
  .kx-js .tk-fan:not(.is-fan) .tk-stamp-h{opacity:0;transform:rotate(-12deg) scale(2)}
  .tk-stamp-h{transition:opacity .3s 1.3s,transform .45s cubic-bezier(.3,1.6,.5,1) 1.3s}
  .kx-js .tk-title .tk-hl{background-size:0 42%;animation:tkMark .9s var(--ease) .75s forwards}
}
@keyframes tkCaret{50%{opacity:0}}
@keyframes tkMark{to{background-size:100% 42%}}

/* ================= TRÌNH TẠO ================= */
.tk-wz{background:var(--bg2);scroll-margin-top:64px}
.tk-prog{list-style:none;margin:0 0 18px;padding:0;display:grid;grid-template-columns:repeat(3,1fr);gap:6px;position:relative;scroll-margin-top:76px}
.tk-prog::before,.tk-prog::after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:4px;border-radius:4px;background:rgba(10,10,12,.12)}
.tk-prog::after{right:auto;width:calc(100% * var(--p,0));min-width:12%;background:var(--ac);transition:width .6s var(--ease)}
.tk-prog button{width:100%;min-height:48px;display:flex;align-items:center;gap:8px;padding:0 10px;border:1px solid var(--ln);border-radius:var(--r);background:#fff;color:var(--mut);font:700 14px var(--fb);cursor:pointer;text-align:left}
.tk-prog i{flex:none;display:grid;place-items:center;width:26px;height:26px;border-radius:50%;border:2px solid currentColor;font:800 13px/1 var(--fb);font-style:normal}
.tk-prog button[aria-current]{color:var(--ink);border-color:var(--ink);box-shadow:inset 0 -3px 0 var(--ac)}
.tk-prog button[aria-current] i{background:var(--ac);border-color:var(--ac);color:#0a0a0c}
.tk-prog button.is-done{color:var(--ink)}
.tk-prog button.is-done i{background:var(--ink);border-color:var(--ink);color:#fff}
.tk-wz-grid{display:grid;gap:22px;margin-top:22px}
.tk-form{min-width:0}
.tk-step[hidden]{display:none!important}
.tk-sth{font:800 19px/1.3 var(--fb)!important;letter-spacing:-.02em!important;margin:0 0 14px!important;display:flex;flex-wrap:wrap;align-items:baseline;gap:4px 10px}
.tk-sth small{font:500 13px var(--fb);color:var(--mut);letter-spacing:0}
.tk-pick{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px}
.tk-tile{position:relative;display:flex;align-items:center;gap:10px;min-height:68px;padding:10px;border:1px solid var(--ln);border-radius:var(--r);background:#fff;color:var(--ink);cursor:pointer;text-align:left;font-family:var(--fb);transition:border-color .2s,box-shadow .2s,transform .2s}
.tk-tile[aria-checked=true]{border-color:var(--ink);box-shadow:inset 0 0 0 1px var(--ink),4px 4px 0 var(--ac)}
.tk-fi{position:relative;flex:none;width:46px;height:56px;border:1.5px solid var(--ink);border-radius:2px 9px 2px 2px;display:grid;place-items:center;background:#fff}
.tk-fi::after{content:"";position:absolute;right:-1.5px;top:-1.5px;width:10px;height:10px;background:linear-gradient(225deg,var(--bg2) 50%,var(--ink) 50%,var(--ink) 58%,#fff 58%)}
.tk-fi .kxi{width:18px;height:18px;margin-top:-12px}
.tk-fi em{position:absolute;bottom:4px;left:50%;transform:translateX(-50%);font:800 12px/1 var(--fb);font-style:normal;letter-spacing:-.02em;background:var(--ink);color:#fff;padding:2px 3px;border-radius:2px}
.tk-fi[data-f=xlsx] em{background:var(--ac);color:#0a0a0c}
.tk-tile[aria-checked=true] .tk-fi{background:var(--hl)}
.tk-tile-t{min-width:0;display:grid;gap:3px}
.tk-tile-t b{font-size:14px;line-height:1.25;font-weight:700}
.tk-tile-t small{font-size:12px;color:var(--mut)}
.tk-fs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px 10px}
.tk-f{display:grid;gap:6px;min-width:0;align-content:start}
.tk-f[hidden]{display:none!important}
.tk-f.w2{grid-column:1/-1}
.tk-f>span{font:600 13px/1.3 var(--fb);color:var(--ink)}
.tk-f input,.tk-f select{width:100%;min-width:0;min-height:48px;padding:10px 12px;border:1px solid rgba(10,10,12,.22);border-radius:var(--r);background:#fff;color:var(--ink);font:500 16px var(--fb);outline:0;-webkit-appearance:none;appearance:none}
.tk-f select{background:#fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%230a0a0c' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E") right 10px center/18px no-repeat;padding-right:34px}
.tk-f input:focus,.tk-f select:focus{border-color:var(--ink);box-shadow:0 0 0 3px rgba(255,106,19,.35)}
.tk-f input[aria-invalid=true]{border-color:var(--ac);border-width:2px;background:#fff7f1}
.tk-err{font:600 13px/1.35 var(--fb);font-style:normal;color:#b54500}
.tk-err:empty{display:none}
.tk-err::before{content:"! ";font-weight:800}
.tk-seg{display:flex;gap:4px;padding:4px;border-radius:calc(var(--r) + 3px);background:#fff;border:1px solid rgba(10,10,12,.18)}
.tk-seg button{flex:1 1 0;min-height:44px;padding:0 6px;border:0;border-radius:var(--r);background:transparent;color:var(--mut);font:600 14px var(--fb);cursor:pointer;transition:background .2s,color .2s}
.tk-seg button[aria-pressed=true]{background:var(--ink);color:#fff}
.tk-opts{display:flex;flex-wrap:wrap;gap:8px}
.tk-opt{display:inline-flex;align-items:center;gap:6px;min-height:44px;padding:0 14px 0 10px;border:1.5px solid rgba(10,10,12,.3);border-radius:99px;background:#fff;color:var(--mut);font:600 14px var(--fb);cursor:pointer;text-decoration:line-through;text-decoration-thickness:1.5px}
.tk-opt .kxi{width:16px;height:16px;opacity:0}
.tk-opt[aria-pressed=true]{background:var(--ac);border-color:var(--ac);color:#0a0a0c;text-decoration:none}
.tk-opt[aria-pressed=true] .kxi{opacity:1;stroke-width:2.6}
.tk-nav{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px}
.tk-nav .btn{min-height:50px;display:inline-flex;align-items:center;gap:8px;cursor:pointer}
.tk-nav .btn-f{flex:1 1 auto;justify-content:center}

/* mua / mở khóa */
.tk-sum{display:grid;gap:0;margin:0 0 14px;background:#fff;border:1px solid var(--ln);border-radius:var(--r);padding:4px 14px}
.tk-sum div{display:flex;justify-content:space-between;gap:12px;padding:9px 0;border-bottom:1px dashed var(--ln);font-size:14px}
.tk-sum div:last-child{border:0}
.tk-sum dt{color:var(--mut)}.tk-sum dd{margin:0;font-weight:700;text-align:right;min-width:0;overflow-wrap:anywhere}
.tk-plans{display:grid;gap:8px;margin-bottom:14px}
.tk-plan{display:grid;grid-template-columns:1fr auto;gap:2px 12px;align-items:center;min-height:60px;padding:10px 14px;border:1px solid var(--ln);border-radius:var(--r);background:#fff;color:var(--ink);text-align:left;cursor:pointer;font-family:var(--fb)}
.tk-plan b{font-size:15px}.tk-plan small{grid-column:1;font-size:13px;color:var(--mut)}.tk-plan strong{grid-row:1/3;grid-column:2;font-size:17px;font-weight:800}
.tk-plan[aria-checked=true]{border-color:var(--ink);box-shadow:inset 0 0 0 1px var(--ink),4px 4px 0 var(--ac)}
.tk-unl{width:100%;justify-content:center;min-height:54px;display:inline-flex;align-items:center;gap:8px;cursor:pointer}
.tk-fine{margin-top:8px!important;font-size:13px;color:var(--mut);text-align:center}
.tk-ok{display:flex;align-items:center;gap:10px;margin:0 0 12px!important;padding:12px 14px;background:var(--ink);color:#fff;border-radius:var(--r);font-size:15px}
.tk-ok .kxi{color:var(--ac)}
.tk-dls{display:flex;flex-wrap:wrap;gap:10px;margin-top:4px}
.tk-dls .btn{min-height:50px;display:inline-flex;align-items:center;gap:8px;cursor:pointer;flex:1 1 200px;justify-content:center}

/* ================= TRANG A4 ================= */
.tk-paper-col{min-width:0}
.tk-status{display:flex;align-items:center;gap:8px;margin:0 0 10px!important;font:600 13px/1.4 var(--fb);color:var(--mut);min-height:18px}
.tk-status::before{content:"";flex:none;width:8px;height:8px;border-radius:50%;background:var(--ac)}
.tk-a4{position:relative;background:#fff;border-radius:2px;box-shadow:var(--paper),7px 7px 0 -1px #fff,7px 7px 0 0 rgba(10,10,12,.12);padding:26px 16px 16px 30px;margin-right:7px;scroll-margin-top:76px;overflow:hidden}
.tk-a4::before{content:"";position:absolute;left:20px;top:0;bottom:0;width:1px;background:rgba(255,106,19,.5)}
.tk-clip-a4{left:58px;top:-10px}
.tk-a4-top{display:flex;align-items:center;gap:8px;margin-bottom:12px}
.tk-fname{font:600 12px/1.2 ui-monospace,Menlo,Consolas,monospace;color:var(--mut);min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tk-dk{font:800 12px/1.3 var(--fb);letter-spacing:.12em;text-transform:uppercase;color:var(--mut)}
.tk-dt{font:800 clamp(22px,5.4vw,30px)/1.2 var(--fb)!important;letter-spacing:-.03em!important;margin:4px 0 2px!important;text-wrap:balance}
.tk-th{font-size:14px;color:var(--mut)}
.tk-meta{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 14px;margin:12px 0 0;border-top:2px solid var(--ink)}
.tk-meta div{padding:7px 0;border-bottom:1px solid var(--ln);min-width:0}
.tk-meta dt{font:700 12px/1.2 var(--fb);letter-spacing:.05em;text-transform:uppercase;color:var(--mut)}
.tk-meta dd{margin:2px 0 0;font-size:14px;font-weight:600;overflow-wrap:anywhere}
.tk-adj{display:flex;align-items:center;gap:6px;margin-top:10px!important;font:700 13px/1.35 var(--fb);color:#b54500}
.tk-adj .kxi{width:16px;height:16px}
.tk-a4 mark{color:inherit;background:linear-gradient(104deg,transparent .1em,var(--hl) .14em,#ffd8bb calc(100% - .16em),transparent calc(100% - .1em)) 0 0/100% 100% no-repeat;padding:0 .12em;border-radius:2px;box-decoration-break:clone;-webkit-box-decoration-break:clone}
.tk-a4 mark.is-empty{background:none;color:var(--mut);border-bottom:2px dashed var(--ac);padding:0;border-radius:0}
.tk-doc{margin-top:14px}
.tk-r{display:grid;grid-template-columns:58px minmax(0,1fr);gap:10px;padding:12px 0;border-bottom:1px solid var(--ln)}
.tk-t b{display:block;font:800 15px/1.2 var(--fb);letter-spacing:-.01em}
.tk-t small{display:block;margin-top:3px;font-size:12px;line-height:1.3;color:var(--mut)}
.tk-b h4{font:700 15px/1.35 var(--fb)!important;letter-spacing:-.01em!important}
.tk-mc{margin-top:5px!important;font-size:15px;line-height:1.62}
.tk-mc.is-no{color:var(--mut);font-style:italic;font-size:14px}
.tk-en{margin-top:4px!important;font-size:14px;line-height:1.5;color:var(--mut);font-style:italic;padding-left:10px;border-left:2px solid var(--hl)}
.tk-cue{display:flex;gap:6px;align-items:flex-start;margin-top:6px!important;font-size:12.5px;line-height:1.45;color:var(--mut)}
.tk-ci{flex:none;width:14px;height:14px;margin-top:2px;fill:none;stroke:var(--ac);stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round}
.tk-day{margin:16px 0 0!important;padding:6px 10px;background:var(--ink);color:#fff;font:800 13px/1.3 var(--fb);letter-spacing:.04em;border-radius:2px}
.tk-r-t .tk-t b{font-size:13px;text-transform:uppercase;letter-spacing:.06em;color:var(--ac)}
.tk-r-h .tk-t b{font-size:12px;letter-spacing:.08em;color:var(--ac)}
/* bảng tính */
.tk-xl{margin:0 -6px 0 -10px;border:1px solid rgba(10,10,12,.2)}
.tk-tbl{border-collapse:collapse;min-width:980px;width:100%;font-size:13px;line-height:1.4;table-layout:fixed}
.tk-tbl th,.tk-tbl td{border:1px solid rgba(10,10,12,.14);padding:6px 7px;text-align:left;vertical-align:top}
.tk-tbl th{background:var(--ink);color:#fff;font-weight:700;font-size:12px;position:sticky;top:0}
.tk-tbl td:first-child,.tk-tbl th:first-child{width:38px;text-align:center;color:var(--mut);background:#f0efeb}
.tk-tbl th:nth-child(2),.tk-tbl th:nth-child(3),.tk-tbl th:nth-child(4){width:64px}
.tk-tbl .tk-c-n{font-weight:700;width:120px}
.tk-tbl .tk-c-w{width:200px}
.tk-tbl i{color:var(--mut)}
.tk-xl-c td{background:#f0efeb;color:var(--mut);font-size:12px;text-align:center;padding:2px}
.tk-tbl tbody tr:nth-child(5n+1):not(.tk-xl-c) td:nth-child(2){color:#b54500}
.tk-tbl-s{min-width:460px;table-layout:auto}
.tk-tbl-s td:first-child{width:auto;text-align:left;color:var(--ink);background:none;font-weight:700}
.tk-ap{margin-top:16px;padding-top:12px;border-top:2px solid var(--ink)}
.tk-ap h4{font:800 14px/1.3 var(--fb)!important;letter-spacing:.04em!important;text-transform:uppercase;margin-bottom:6px!important}
.tk-ap ul{margin:0;padding-left:18px;display:grid;gap:4px;font-size:14px;line-height:1.5}
.tk-ap li::marker{color:var(--ac)}
.tk-ap .s-tblw{margin-top:6px}
/* vùng khóa */
.tk-lockz{position:relative;margin-top:4px}
.tk-fakes{filter:blur(5px);user-select:none;-webkit-user-select:none;pointer-events:none;opacity:.75;max-height:560px;overflow:hidden;-webkit-mask-image:linear-gradient(#000 70%,transparent);mask-image:linear-gradient(#000 70%,transparent)}
.tk-fakes .tk-xl{overflow:hidden}
.tk-lockc{position:absolute;left:4px;right:4px;top:clamp(24px,8%,70px);display:grid;justify-items:center;gap:6px;padding:20px 16px 16px;background:var(--ink);color:#fff;border-radius:8px;text-align:center;box-shadow:0 20px 40px -18px rgba(10,10,12,.6)}
.tk-lk{display:grid;place-items:center;width:42px;height:42px;border-radius:50%;background:var(--ac);color:#0a0a0c}
.tk-lk .kxi{width:20px;height:20px;stroke-width:2.2}
.tk-lockc b{font-size:17px;line-height:1.3;max-width:28ch}
.tk-lockc small{font-size:13px;color:#c9c9d0}
.tk-lockc .btn{margin-top:6px;min-height:50px;display:inline-flex;align-items:center;gap:8px;cursor:pointer;padding-inline:26px}
.tk-lockz.is-open .tk-dls{margin-top:16px}
.tk-a4-ft{display:flex;justify-content:space-between;gap:10px;margin-top:16px;padding-top:8px;border-top:1px solid var(--ln);font-size:12px;color:var(--mut)}
.tk-stamp-d{top:18px;right:12px;font-size:21px;z-index:2}
.tk-stamp-d.is-ok{font-size:17px;color:var(--ink);border-color:var(--ac)}
.tk-sweep{position:absolute;left:0;right:0;top:var(--sy,0);height:3px;background:var(--ac);box-shadow:0 0 18px 4px rgba(255,106,19,.55);opacity:0;pointer-events:none;z-index:3}
/* nút nổi */
.tk-peek{position:fixed;left:max(16px,env(safe-area-inset-left,0px));bottom:max(16px,env(safe-area-inset-bottom,0px));z-index:94;display:inline-flex;align-items:center;gap:8px;height:54px;padding:0 20px 0 16px;border:0;border-radius:99px;background:#0a0a0c;color:#fff;font:700 15px var(--fb);cursor:pointer;box-shadow:0 12px 30px rgba(10,10,12,.35),inset 0 -3px 0 var(--ac)}
.tk-peek[hidden]{display:none}
.tk-peek .s-ico svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:2}

@media(prefers-reduced-motion:no-preference){
  .tk-ty{animation:tkType .62s steps(18,end) both;animation-delay:calc(var(--i,0)*55ms)}
  .tk-ty mark{animation:tkMark2 .7s var(--ease) both;animation-delay:calc(var(--i,0)*55ms + .3s)}
  tr.tk-ty{animation:tkFlash 1s ease-out both}
  .tk-stamp-d.is-drop{animation:tkDrop .6s cubic-bezier(.3,1.5,.5,1) both}
  .tk-unl{animation:tkUnblur 1.1s var(--ease) both;animation-delay:calc(var(--j,0)*70ms)}
  .tk-lockz.is-reveal .tk-rest,.tk-lockz.is-reveal .tk-dls{animation:tkUnblur 1.1s var(--ease) .9s both}
  .tk-a4.is-sweep .tk-sweep{animation:tkSweep 1.7s cubic-bezier(.45,0,.2,1) both}
  .tk-tile{transition:border-color .2s,box-shadow .25s,transform .25s var(--ease)}
  .tk-tile:active{transform:scale(.97)}
}
@keyframes tkType{from{clip-path:inset(0 100% 0 0)}to{clip-path:inset(0 0 0 0)}}
@keyframes tkMark2{from{background-size:0 100%}to{background-size:100% 100%}}
@keyframes tkFlash{from{background:#ffe3cf}to{background:transparent}}
@keyframes tkDrop{0%{opacity:0;transform:rotate(-4deg) scale(2.4)}60%{opacity:.95;transform:rotate(-13deg) scale(.94)}100%{opacity:.92;transform:rotate(-12deg) scale(1)}}
@keyframes tkUnblur{from{filter:blur(6px);opacity:.25;transform:translateY(6px)}to{filter:none;opacity:1;transform:none}}
@keyframes tkSweep{0%{top:var(--sy,0);opacity:0}8%{opacity:1}88%{opacity:1}100%{top:100%;opacity:0}}

/* ================= THƯ VIỆN ================= */
.tk-lib{background:var(--bg)}
.tk-hd-row .s-lead{max-width:60ch}
.tk-rail{padding-bottom:20px}
.tk-rail>*{flex-basis:min(82%,320px)}
.tk-lc{display:flex;flex-direction:column;background:#fff;border:1px solid var(--ln);border-radius:var(--r);padding:12px 14px 14px;box-shadow:0 1px 0 rgba(10,10,12,.05);transition:transform .35s var(--ease),box-shadow .35s}
.tk-lc-doc{position:relative;height:104px;margin:-2px -2px 12px;border-radius:3px;background:var(--bg);padding:12px 14px;display:flex;flex-direction:column;gap:7px;overflow:hidden}
.tk-lc-doc .tk-sh-tag{align-self:flex-start;height:20px}
.tk-lc-doc i{display:block;height:6px;border-radius:2px;background:#dcdbd5;width:62%}
.tk-lc-doc i:nth-of-type(2){width:48%}.tk-lc-doc i:nth-of-type(3){width:56%}.tk-lc-doc i:nth-of-type(4){width:34%}
.tk-lc-ic{position:absolute;right:12px;bottom:-6px;width:78px;height:96px;background:#fff;border-radius:3px 3px 0 0;box-shadow:var(--paper);display:grid;place-items:center;color:var(--ac);transform:rotate(6deg);transition:transform .45s var(--ease)}
.tk-lc-ic .kxi{width:30px;height:30px;stroke-width:1.6}
.tk-lc h3{font:800 17px/1.3 var(--fb)!important;letter-spacing:-.02em!important}
.tk-lc-d{margin-top:6px!important;font-size:15px;line-height:1.5;color:var(--mut)}
.tk-lc-m{list-style:none;padding:0;margin:10px 0 0;display:flex;flex-wrap:wrap;gap:6px}
.tk-lc-m li{font:600 12px/1 var(--fb);padding:6px 8px;border-radius:3px;background:var(--bg2)}
.tk-lc-p{margin-top:auto!important;padding-top:12px;display:flex;align-items:baseline;flex-wrap:wrap;gap:4px 8px}
.tk-lc-p b{font:800 20px/1 var(--fb);letter-spacing:-.02em}
.tk-lc-p small{font-size:12px;color:var(--mut)}
.tk-lc-b{display:flex;gap:8px;margin-top:12px}
.tk-lc-b .btn{flex:1;min-height:46px;display:inline-flex;align-items:center;justify-content:center;font-size:14px;cursor:pointer;padding-inline:12px}
.tk-lc-o{min-height:46px;padding:0 14px;border:1.5px solid var(--ink);border-radius:var(--r);background:#fff;color:var(--ink);font:700 14px var(--fb);cursor:pointer}
@media(hover:hover){
  .tk-lc:hover{transform:translateY(-4px);box-shadow:0 18px 34px -20px rgba(10,10,12,.4)}
  .tk-lc:hover .tk-lc-ic{transform:rotate(0) translateY(-8px)}
  .tk-lc-o:hover{background:var(--ink);color:#fff}
  .tk-tile:hover{border-color:var(--ink)}
  .tk-plan:hover{border-color:var(--ink)}
}

/* ================= CÁCH HOẠT ĐỘNG ================= */
.tk-how{background:#fff}
.tk-how-in{display:grid;gap:clamp(22px,4vw,56px)}
.tk-3s{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.tk-3s li{display:flex;gap:14px;align-items:flex-start;padding:14px 16px;background:var(--bg);border-radius:3px;box-shadow:0 1px 0 rgba(10,10,12,.06);position:relative}
.tk-3s li:nth-child(2){transform:rotate(.6deg)}.tk-3s li:nth-child(3){transform:rotate(-.5deg)}
.tk-3s i{flex:none;display:grid;place-items:center;width:40px;height:40px;border-radius:50%;background:var(--ac);color:#0a0a0c;font:800 18px/1 var(--fb);font-style:normal}
.tk-3s b{display:block;font-size:16px;line-height:1.3}
.tk-3s span{display:block;margin-top:3px;font-size:15px;line-height:1.5;color:var(--mut)}
.tk-custom{margin-top:16px;padding:16px;border:2px dashed var(--ac);border-radius:var(--r);background:#fff}
.tk-custom p{font-size:15px;line-height:1.55}
.tk-custom-b{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:12px}
.tk-custom .sq-add{min-height:48px}
.tk-tel{display:inline-flex;align-items:center;gap:8px;min-height:48px;padding:0 14px;font:800 16px var(--fb);color:var(--ink);text-decoration:none;border-bottom:3px solid var(--hl)}
.tk-tel .s-ico svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:2}
.tk-acc{border-top:2px solid var(--ink)}
.tk-acc:last-child{border-bottom:2px solid var(--ink)}
.tk-acc summary{display:flex;align-items:center;gap:10px;min-height:56px;padding:6px 0;cursor:pointer;list-style:none;font:800 17px/1.3 var(--fb);letter-spacing:-.02em}
.tk-acc summary::-webkit-details-marker{display:none}
.tk-acc summary .s-ico{color:var(--ac)}
.tk-acc summary .s-ico svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:2}
.tk-acc summary small{font:500 12px var(--fb);color:var(--mut);letter-spacing:0}
.tk-acc summary::after{content:"";margin-left:auto;flex:none;width:28px;height:28px;border-radius:50%;border:1.5px solid var(--ink);background:linear-gradient(var(--ink),var(--ink)) center/11px 2px no-repeat,linear-gradient(var(--ink),var(--ink)) center/2px 11px no-repeat;transition:transform .35s var(--ease)}
.tk-acc[open] summary::after{transform:rotate(135deg);background-color:var(--hl)}
.tk-ul{margin:0 0 16px;padding-left:20px;display:grid;gap:7px;font-size:15px;line-height:1.55}
.tk-ul li::marker{color:var(--ac)}

/* ================= ĐỌC THÊM (khối tối) ================= */
.tk-reads{background:#0a0a0c;color:#f5f5f6;--ink:#f5f5f6;--mut:#a3a3ad;--ln:rgba(255,255,255,.12);--card:#16161b}
.tk-reads .tk-no b{background:var(--ac);color:#0a0a0c}
.tk-cards .grid3{grid-template-columns:none;grid-auto-flow:column;grid-auto-columns:84%;gap:12px;overflow-x:auto;scroll-snap-type:x mandatory;overscroll-behavior-x:contain;margin:0 calc(var(--gut,20px)*-1);padding:0 var(--gut,20px) 6px;scrollbar-width:none}
.tk-cards .grid3::-webkit-scrollbar{display:none}
.tk-cards .grid3>*{scroll-snap-align:start}

/* ================= FAQ ================= */
.tk-faq{background:var(--bg)}
.tk-faq .fq-q{min-height:56px;padding-block:14px}

/* ================= iPad ================= */
@media(min-width:700px){
  .tk-pick{grid-template-columns:repeat(4,minmax(0,1fr))}
  .tk-tile{flex-direction:column;align-items:flex-start;min-height:118px}
  .tk-fs{grid-template-columns:repeat(4,minmax(0,1fr))}
  .tk-fs .tk-f.w2{grid-column:span 2}
  .tk-a4{padding:34px 28px 22px 44px}
  .tk-a4::before{left:30px}
  .tk-r{grid-template-columns:76px minmax(0,1fr);gap:14px}
  .tk-meta{grid-template-columns:repeat(3,minmax(0,1fr))}
  .tk-lockc{left:12%;right:12%}
  .tk-3s{grid-template-columns:repeat(3,1fr)}
  .tk-3s li{flex-direction:column}
  .tk-cards .grid3{grid-auto-columns:46%}
  .tk-plans{grid-template-columns:1fr 1fr}
  .tk-peek{left:50%;transform:translateX(-50%)}
}
/* ================= Desktop ================= */
@media(min-width:1025px){
  .tk-hero-in{grid-template-columns:minmax(0,1.05fr) minmax(0,1fr)}
  .tk-title{font-size:clamp(80px,7.4vw,112px)}
  .tk-faq-in{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:56px;align-items:start}
  .tk-faq-in .tk-hd{position:sticky;top:100px}
  .tk-fan{height:470px}
  .tk-sh{width:min(56%,300px);margin-left:calc(min(56%,300px) / -2)}
  .tk-type,.tk-type b{font-size:12.5px}
  .tk-wz-grid{grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);gap:36px;align-items:start}
  .tk-pick{grid-template-columns:repeat(2,minmax(0,1fr))}
  .tk-tile{flex-direction:row;align-items:center;min-height:76px}
  .tk-fs{grid-template-columns:repeat(2,minmax(0,1fr))}
  .tk-fs .tk-f.w2{grid-column:1/-1}
  .tk-plans{grid-template-columns:1fr}
  .tk-paper-col{position:sticky;top:84px;max-height:calc(100vh - 100px);overflow:auto;overscroll-behavior:contain;padding:4px 4px 10px 0;scrollbar-width:thin}
  .tk-peek{display:none!important}
  .tk-how-in{grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);align-items:start}
  .tk-3s{grid-template-columns:1fr}
  .tk-3s li{flex-direction:row}
  .tk-cards .grid3{grid-auto-flow:row;grid-template-columns:repeat(4,minmax(0,1fr));overflow:visible;margin:0;padding:0}
  .tk-rail{gap:16px}
  .tk-hd-row{max-width:none;display:grid;grid-template-columns:1fr 1fr;gap:12px 40px;align-items:end}
}
@media(min-width:1440px){.tk-wz-grid{grid-template-columns:minmax(0,.95fr) minmax(0,1.1fr)}}