/* eSSESSMENT page sections */
.stage { position: relative; width: 100%; max-width: 100%; }
.stage-in { position: absolute; top: 0; left: 0; transform-origin: 0 0; transform: scale(var(--s, 1)); }
.wrap-pad { padding-left: 4px; }

/* ---------- 1. hero ---------- */
.ess-hero { padding-block: clamp(40px, 6vw, 88px) clamp(64px, 8vw, 112px); overflow-x: clip; }
.eh-t { display: grid; justify-items: center; gap: 24px; max-width: 960px; margin-inline: auto; text-align: center; }
.eh-t .h1 { max-width: 17ch; }
.eh-side { display: grid; justify-items: center; gap: 14px; }
.eh-side .lead { max-width: 46ch; }
.eh-side .btns { justify-content: center; margin-top: 8px; }
.strip-panel { margin-top: clamp(40px, 5vw, 64px); padding: clamp(18px, 2.4vw, 32px) clamp(18px, 2.4vw, 32px) 0; border-radius: var(--r-lg); background: var(--paper-2); overflow: hidden; }
.strip-head { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 12px 24px; margin-bottom: clamp(20px, 2.6vw, 32px); padding-inline: 4px; }
.strip-head b { display: block; font: 450 clamp(18px, 1.6vw, 22px)/1.2 var(--font); letter-spacing: -0.015em; }
.strip-head b + span { display: block; margin-top: 6px; font: 400 14.5px/1.3 var(--font); color: var(--mute); }
.strip-meta { display: flex; flex-wrap: wrap; gap: 6px; }
.strip-meta .chip { height: 28px; padding: 0 12px; background: var(--paper); color: var(--ink-2); box-shadow: 0 0 0 1px var(--line); font-family: var(--font); font-size: 12.5px; }
.strip { display: flex; gap: 20px; padding: 14px 4px 0; }
.st-i { position: relative; z-index: 1; display: grid; justify-items: center; gap: 18px; width: 240px; }
.st-i .phone { --pw: 230px; box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.12), inset 0 1px 1px rgba(255, 255, 255, 0.8), 0 18px 40px -22px rgba(17, 17, 19, 0.4); transition: transform 0.5s var(--ease); }
.st-i figcaption { display: flex; align-items: center; gap: 8px; font: 500 14px/1 var(--font); color: var(--mute); transition: color 0.3s; }
.st-i figcaption b { font-weight: 650; color: var(--red); }
.st-i.on .phone { transform: translateY(-10px); }
.st-i.on figcaption { color: var(--ink); }
.strip-line { position: absolute; left: 124px; right: 124px; bottom: 6px; z-index: 0; height: 1px; background: var(--line-2); }
.ess-hero .cap { margin-top: 14px; justify-content: space-between; }
@media (max-width: 640px) {
  .strip-panel { margin-inline: calc(-1 * var(--gut)); border-radius: 0; padding-inline: 0; }
  .strip-head { padding-inline: var(--gut); }
  .strip { padding-inline: 24px; }
}
.strip-panel .stage { overflow-x: auto; overflow-y: hidden; scrollbar-width: none; overscroll-behavior-x: contain; }
.strip-panel .stage::-webkit-scrollbar { display: none; }
.swipe { display: none; }
@media (max-width: 900px) { .swipe { display: inline; } }

/* ---------- 2. what ---------- */
.what-g { display: grid; grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr); gap: 40px clamp(40px, 6vw, 96px); align-items: start; }
.what-l { display: grid; gap: 20px; }
.what-d { display: grid; border-top: 1px solid var(--line); }
.what-d > div { display: grid; grid-template-columns: 160px minmax(0, 1fr); gap: 8px 24px; padding: 24px 0; border-bottom: 1px solid var(--line); }
.what-d dt { font: 450 20px/1.3 var(--font); letter-spacing: -0.015em; }
.what-d dd { color: var(--ink-2); }
.what-d dd b { display: block; font-weight: 600; color: var(--ink); }
.what-no { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 32px; margin-top: clamp(48px, 6vw, 80px); }
.what-no li { padding-top: 18px; border-top: 2px solid var(--ink); font: 450 clamp(18px, 1.5vw, 21px)/1.3 var(--font); letter-spacing: -0.012em; }
@media (max-width: 960px) { .what-g { grid-template-columns: minmax(0, 1fr); } .what-no { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 520px) { .what-d > div { grid-template-columns: minmax(0, 1fr); } .what-no { gap: 24px 20px; } }

/* ---------- 3. how ---------- */
.how { margin-top: clamp(48px, 6vw, 80px); }
.chs { display: grid; gap: clamp(88px, 10vw, 136px); min-width: 0; }
.how-s .sec-head { justify-items: center; margin-inline: auto; text-align: center; }
.ch { display: grid; gap: clamp(28px, 3vw, 40px); scroll-margin-top: 96px; }
.ch-t { display: grid; justify-items: center; gap: 14px; max-width: 760px; margin: 0 auto; text-align: center; }
.ch-t .lead { max-width: 52ch; }
.ch-t .btns { justify-content: center; margin-top: 6px; }
.ch-chat { display: grid; justify-items: center; }
.ch-chat .chat { justify-self: center; max-width: 680px; }
.ch-chat .chat-me, .ch-chat .chat-ai { font-size: 15px; }
.ch-chat .chat-row { font-size: 13.5px; }
.ch-n { font: 500 15px/1 var(--font); color: var(--red); }
.ch-h { font-size: clamp(30px, 3.2vw, 46px); }
.ch-t .lead { font-size: clamp(17px, 1.35vw, 19.5px); }
.ch-v { min-width: 0; }

/* activity builder rebuild, drawn at 860 x 560 */
.ab { width: 860px; }
.ab-g { display: grid; grid-template-columns: minmax(0, 1fr) 260px; height: 426px; }
.ab-h { font: 600 11.5px/1.2 var(--ui); color: var(--s-mute); }
.ab-h span { font-weight: 400; margin-left: 6px; }
.ab-steps { padding: 22px 26px; min-width: 0; }
.ab-steps ol { display: grid; gap: 8px; margin-top: 16px; }
.ab-steps li { display: grid; grid-template-columns: 22px auto minmax(0, 1fr); align-items: center; gap: 10px; height: 52px; padding: 0 12px 0 10px; border-radius: 10px; background: #fff; box-shadow: 0 0 0 1px var(--s-line); font: 400 12px/1 var(--ui); }
.ab-steps li .n { display: grid; place-items: center; width: 22px; height: 22px; border-radius: 6px; background: var(--s-fill); font: 600 11px/1 var(--ui); color: var(--s-mute); }
.ab-steps li b { font: 600 14px/1 var(--ui); }
.ab-steps li em { font-style: normal; color: var(--s-mute); overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.ab-steps li.sel { box-shadow: 0 0 0 1.5px #b51f2a; }
.ab-steps li.sel .n { background: #b51f2a; color: #fff; }
.ab-prev { display: grid; justify-items: center; align-content: start; gap: 12px; padding: 16px; border-left: 1px solid var(--s-line); background: #fafafb; }
.ab-prev .ab-h { justify-self: start; }
.ab-prev .phone { --pw: 168px; }
.ab-pv { font: 500 11.5px/1 var(--ui); color: var(--s-mute); }

/* invite and schedule, drawn at 860 x 500 */
.iv { position: absolute; top: 0; left: 0; width: 420px; }
.iv-b { padding: 22px 24px 24px; }
.iv-t { font: 650 18px/1.2 var(--ui); letter-spacing: -0.01em; }
.iv-t + .iv-f { margin-top: 16px; }
.iv-s { margin-top: 6px; font: 400 12.5px/1.4 var(--ui); color: var(--s-mute); }
.iv-tabs { display: grid; grid-template-columns: 1fr 1fr; gap: 3px; margin-top: 18px; padding: 3px; border-radius: 10px; background: var(--s-fill); }
.iv-tabs span { display: grid; place-items: center; height: 32px; border-radius: 8px; font: 500 12.5px/1 var(--ui); color: var(--s-mute); }
.iv-tabs span.on { background: #fff; color: var(--s-ink); box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08); }
.iv-l { margin-top: 16px; font: 600 12px/1 var(--ui); color: var(--s-ink); }
.iv-f { display: flex; align-items: center; height: 40px; margin-top: 8px; padding: 0 12px; border-radius: 9px; box-shadow: inset 0 0 0 1px var(--s-line); font: 400 13px/1 var(--ui); }
.iv-c { display: flex; align-items: center; gap: 10px; height: 40px; margin-top: 8px; padding: 0 12px; border-radius: 9px; box-shadow: inset 0 0 0 1px var(--s-line); font: 500 12.5px/1 var(--ui); }
.iv-c i { width: 16px; height: 16px; border-radius: 4px; background: #1d1d1f url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 8.4l2.6 2.6L12 5.4' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / 14px no-repeat; }
.iv-c em { margin-left: auto; font-style: normal; color: var(--s-mute); }
.iv-act { display: flex; justify-content: flex-end; gap: 8px; margin-top: 22px; }
.sch { position: absolute; top: 236px; left: 48px; width: 420px; }
.sch-b { padding: 6px 22px 22px; }
.seg3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 3px; margin-top: 8px; padding: 3px; border-radius: 10px; background: var(--s-fill); }
.seg3.four { grid-template-columns: repeat(4, 1fr); }
.seg3 span { display: grid; place-items: center; height: 30px; border-radius: 8px; font: 500 12px/1 var(--ui); color: var(--s-mute); }
.seg3 span.on { background: #fff; color: var(--s-ink); box-shadow: 0 1px 2px rgba(0, 0, 0, 0.08); font-weight: 600; }
.sch-r { display: flex; align-items: center; justify-content: space-between; height: 38px; margin-top: 6px; padding: 0 4px; border-bottom: 1px solid var(--s-line); font: 500 12.5px/1 var(--ui); }
.tg { width: 36px; height: 22px; border-radius: 99px; background: #d8d8de; position: relative; }
.tg::after { content: ""; position: absolute; top: 2px; left: 2px; width: 18px; height: 18px; border-radius: 50%; background: #fff; box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2); }
.tg.on { background: #2fb36a; }
.tg.on::after { left: 16px; }
.iv-ph { --pw: 230px; position: absolute; top: 2px; right: 56px; }
.iv-arrow { position: absolute; top: 120px; left: 432px; width: 150px; height: 60px; overflow: visible; }
.iv-arrow path { fill: none; stroke: #b51f2a; stroke-width: 1.6; stroke-linecap: round; stroke-dasharray: 3 5; }

/* take part: one phone, five screens */
.tp-v { display: grid; justify-items: center; }
.tp-ph { display: grid; grid-template-columns: minmax(0, 420px) auto; justify-content: center; align-items: center; gap: clamp(28px, 5vw, 80px); width: 100%; padding: clamp(24px, 4vw, 56px); border-radius: var(--r-lg); background: var(--paper); box-shadow: 0 0 0 1px var(--line); }
.tp-ph .phone { --pw: min(300px, 70vw); }
.tp-list { display: grid; gap: 4px; counter-reset: tp; }
.tp-list button { position: relative; display: grid; grid-template-columns: 30px minmax(0, 1fr); gap: 4px 14px; align-items: center; padding: 14px 16px; border-radius: 16px; text-align: left; color: var(--mute); overflow: hidden; transition: background-color 0.2s, color 0.2s; }
.tp-list button::before { counter-increment: tp; content: counter(tp); display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; box-shadow: inset 0 0 0 1px var(--line-2); font: 500 13px/1 var(--font); font-variant-numeric: tabular-nums; }
.tp-list b { font: 500 17px/1.3 var(--font); }
.tp-list span { display: none; grid-column: 2; font: 400 15px/1.5 var(--font); color: var(--ink-2); }
.tp-list button:hover { color: var(--ink); }
.tp-list button[aria-selected="true"] { background: var(--paper-2); color: var(--ink); }
.tp-list button[aria-selected="true"]::before { background: var(--btn); color: #fff; box-shadow: none; }
.tp-list button[aria-selected="true"] span { display: block; }
.tp-list i { position: absolute; left: 16px; right: 16px; bottom: 0; height: 2px; border-radius: 2px; background: var(--red); transform: scaleX(0); transform-origin: left; opacity: 0; }
.tp-list.auto button[aria-selected="true"] i { opacity: 0.55; animation: tp-fill 4.6s linear forwards; }
@keyframes tp-fill { to { transform: scaleX(1); } }
@media (max-width: 760px) { .tp-ph { grid-template-columns: minmax(0, 1fr); justify-items: center; } .tp-ph .phone { --pw: min(260px, 66vw); } .tp-list { order: 2; width: 100%; max-width: none; } }
.tp-s { opacity: 0; transform: translateX(14%); transition: opacity 0.4s ease, transform 0.55s var(--ease); pointer-events: none; }
.tp-s.on { opacity: 1; transform: none; }
.tp-s.past { opacity: 0; transform: translateX(-14%); }
.tp-v .cap { justify-self: start; }

/* playback rebuild, drawn at 860 x 600 */
.pb { width: 860px; }
.pb-b { padding: 18px 20px 20px; display: grid; gap: 14px; }
.pb-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 12px; }
.pb-head b { display: block; font: 650 15px/1.2 var(--ui); letter-spacing: -0.01em; }
.pb-head span { display: block; margin-top: 4px; font: 400 12px/1.2 var(--ui); color: var(--s-mute); }
.pb-tr { display: flex; align-items: center; gap: 10px; font: 500 12px/1 var(--ui); color: var(--s-mute); }
.pb-tr .pp { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 50%; background: #1d1d1f; color: #fff; }
.pb-tr .pp svg { width: 12px; height: 12px; margin-left: 1px; }
.pb-g { display: grid; grid-template-columns: minmax(0, 1fr) 190px; gap: 14px; }
.pb-lanes { height: 262px; border-radius: 12px; box-shadow: inset 0 0 0 1px var(--s-line); overflow: hidden; }
.pb-lanes .lane-k { left: calc(62% + 12px); }
.pb-side { display: grid; gap: 10px; align-content: start; }
.pb-cam { position: relative; aspect-ratio: 4 / 3; overflow: hidden; border-radius: 10px; background: #ddd; }
.pb-cam img { width: 100%; height: 100%; object-fit: cover; object-position: 50% 30%; }
.pb-cam span { position: absolute; top: 6px; left: 6px; padding: 4px 7px; border-radius: 99px; background: rgba(255, 255, 255, 0.85); font: 600 10px/1 var(--ui); }
.pb-tabs { display: flex; gap: 12px; padding-bottom: 6px; border-bottom: 1px solid var(--s-line); font: 500 11.5px/1 var(--ui); color: var(--s-mute); }
.pb-tabs .on { color: var(--s-ink); font-weight: 600; }
.pb-notes { display: grid; gap: 8px; }
.pb-notes li { display: grid; grid-template-columns: 38px minmax(0, 1fr); gap: 6px; font: 400 11.5px/1.35 var(--ui); color: var(--s-ink); }
.pb-notes em { font-style: normal; color: var(--s-mute); }
.pb-notes b { font-weight: 600; color: #b51f2a; }
.pb-scrub { position: relative; height: 18px; }
.pb-scrub .trk { position: absolute; top: 7px; right: 0; left: 0; height: 4px; border-radius: 99px; background: var(--s-fill); }
.pb-scrub .trk b { display: block; width: var(--p); height: 100%; border-radius: inherit; background: #3a3a3f; }
.pb-scrub i { position: absolute; top: 5px; left: var(--x); width: 8px; height: 8px; margin-left: -4px; border-radius: 50%; background: #b51f2a; box-shadow: 0 0 0 2px #fff; }
.pb-scrub i.a { background: #3a3a3f; }

/* ---------- 4. claude ---------- */
.chat { max-width: 600px; justify-self: end; width: 100%; }
.chat-b { display: grid; gap: 12px; padding: 20px; min-height: 420px; align-content: start; }
.chat-b > * { transition: opacity 0.4s ease, transform 0.5s var(--ease); }
.chat-b > .off { opacity: 0; transform: translateY(8px); }
.chat-me { justify-self: end; max-width: 86%; padding: 11px 14px; border-radius: 16px 16px 4px 16px; background: var(--s-fill); font: 400 13.5px/1.45 var(--ui); }
.chat-tool { display: inline-flex; align-items: center; gap: 8px; font: 500 12.5px/1 var(--ui); color: var(--s-mute); }
.chat-tool i { width: 16px; height: 16px; border-radius: 50%; background: #b51f2a url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 8.4l2.6 2.6L12 5.4' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / 12px no-repeat; }
.chat-card { max-width: 88%; padding: 12px 14px 6px; border-radius: 12px; box-shadow: 0 0 0 1px var(--s-line); }
.chat-ct { display: flex; justify-content: space-between; align-items: baseline; gap: 10px; margin-bottom: 6px; font: 400 11.5px/1.2 var(--ui); color: var(--s-mute); }
.chat-ct b { font: 650 13.5px/1.2 var(--ui); color: var(--s-ink); }
.chat-row { display: grid; grid-template-columns: 18px auto minmax(0, 1fr); gap: 8px; align-items: center; padding: 7px 0; border-top: 1px solid var(--s-line); font: 500 12.5px/1.2 var(--ui); }
.chat-row span { display: grid; place-items: center; width: 18px; height: 18px; border-radius: 5px; background: var(--s-fill); font: 600 10px/1 var(--ui); color: var(--s-mute); }
.chat-row em { justify-self: end; font-style: normal; font-weight: 400; color: var(--s-mute); text-align: right; }
.chat-ai { font: 400 13.5px/1.5 var(--ui); }
.chat-ai b { font-weight: 600; }
.chat-in { display: flex; align-items: center; justify-content: space-between; margin: 0 16px 16px; height: 44px; padding: 0 6px 0 16px; border-radius: 999px; box-shadow: inset 0 0 0 1px var(--s-line); font: 400 13px/1 var(--ui); color: var(--s-mute); }
.chat-in i { width: 32px; height: 32px; border-radius: 50%; background: #b51f2a url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M8 12.5V3.5M4 7.5l4-4 4 4' fill='none' stroke='white' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E") center / 15px no-repeat; }
@media (max-width: 560px) { .chat-b { min-height: 0; } }

/* ---------- 5. building blocks ---------- */
.bl-g { display: grid; grid-template-columns: minmax(0, 0.7fr) minmax(0, 1.3fr); gap: 40px clamp(40px, 6vw, 96px); align-items: start; }
.bl-l { position: sticky; top: 108px; display: grid; gap: 20px; }
.bl-r { display: grid; gap: clamp(48px, 5vw, 72px); min-width: 0; }
.bl-grp { display: grid; gap: 16px; }
.bl-grp .h4 { color: var(--mute); font-weight: 600; font-size: 15px; }
.bl-steps { counter-reset: b; display: flex; flex-wrap: wrap; gap: 8px; }
.bl-steps li { counter-increment: b; display: inline-flex; align-items: center; gap: 10px; height: 46px; padding: 0 18px 0 14px; border-radius: 14px; background: var(--paper); box-shadow: 0 0 0 1px var(--line); font: 500 15.5px/1 var(--font); }
.bl-steps li::before { content: counter(b); font: 500 13px/1 var(--font); color: var(--red); font-variant-numeric: tabular-nums; }
.bl-facts { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 32px; border-top: 1px solid var(--line-2); }
.bl-facts > div { display: grid; gap: 4px; padding: 18px 0; border-bottom: 1px solid var(--line-2); }
.bl-facts dt { font: 500 16.5px/1.35 var(--font); }
.bl-facts dd { color: var(--ink-2); }
.qx { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.qx figure { display: grid; gap: 10px; }
.qx-v { display: grid; place-items: center; height: 92px; padding: 12px; border-radius: 16px; background: var(--s-bg); box-shadow: 0 0 0 1px var(--line); font-family: var(--ui); color: var(--s-ink); }
.qx figcaption { font: 500 14px/1 var(--font); color: var(--ink-2); }
.qx .yn, .qx .sc, .qx .ch { display: flex; gap: 6px; }
.qx .yn i, .qx .ch i { display: grid; place-items: center; height: 32px; padding: 0 14px; border-radius: 99px; background: var(--s-fill); font: 500 12.5px/1 var(--ui); font-style: normal; }
.qx .sc i { display: grid; place-items: center; width: 30px; height: 30px; border-radius: 8px; background: var(--s-fill); font: 500 12.5px/1 var(--ui); font-style: normal; }
.qx i.on { background: #b51f2a; color: #fff; font-weight: 600; }
.qx .ch i { padding: 0 11px; }
.qx .sl { position: relative; display: block; width: 80%; height: 4px; border-radius: 99px; background: var(--s-fill); }
.qx .sl i { position: absolute; inset: 0 auto 0 0; width: var(--v); border-radius: inherit; background: #b51f2a; }
.qx .sl i::after { content: ""; position: absolute; top: 50%; right: -10px; width: 20px; height: 20px; margin-top: -10px; border-radius: 50%; background: #fff; box-shadow: 0 1px 4px rgba(0, 0, 0, 0.25); }
.qx .nb { font: 700 24px/1 var(--ui); letter-spacing: -0.01em; }
.qx .nb small { font: 500 12px/1 var(--ui); color: var(--s-mute); }
.qx .tx { width: 100%; padding: 10px 12px; border-radius: 10px; box-shadow: inset 0 0 0 1px var(--s-line); font: 400 12.5px/1.3 var(--ui); }
.qx figure, .qx-v { min-width: 0; }
.qx-v { overflow: hidden; }
@media (max-width: 760px) {
  .qx { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .qx .sc { gap: 4px; }
  .qx .sc i { width: 24px; height: 28px; }
  .qx .yn i, .qx .ch i { padding: 0 9px; font-size: 11.5px; }
  .qx .ch { flex-wrap: wrap; justify-content: center; gap: 4px; }
}
@media (max-width: 960px) { .bl-g { grid-template-columns: minmax(0, 1fr); } .bl-l { position: static; } }
@media (max-width: 600px) { .qx { grid-template-columns: repeat(2, minmax(0, 1fr)); } .bl-facts { grid-template-columns: minmax(0, 1fr); } }

/* ---------- 6. readings ---------- */
.rd-g { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: 40px clamp(40px, 6vw, 96px); align-items: center; }
.rd-v { display: grid; justify-items: center; gap: 24px; padding: clamp(28px, 4vw, 48px); border-radius: var(--r-lg); background: var(--paper-2); }
.rd-ph .phone { --pw: min(290px, 56vw); }
.rd-tips { display: flex; flex-wrap: wrap; justify-content: center; gap: 6px; }
.rd-tips li { display: flex; align-items: center; gap: 10px; height: 38px; padding: 0 12px; border-radius: 999px; background: var(--paper); box-shadow: 0 0 0 1px var(--line); font: 500 13.5px/1 var(--font); white-space: nowrap; color: var(--mute); transition: color 0.3s, box-shadow 0.3s; }
.rd-tips li::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--line-2); transition: background-color 0.3s; }
.rd-tips li.on { color: var(--ink); box-shadow: 0 0 0 1.5px var(--ink); }
.rd-tips li.on::before { background: #2fb36a; }
.rd-t { display: grid; gap: 22px; }
.rd-d { display: grid; border-top: 1px solid var(--line); }
.rd-d > div { display: grid; gap: 4px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.rd-d dt { font: 500 17px/1.35 var(--font); }
.rd-d dd { color: var(--ink-2); }
.rd-n { font-size: 14px; line-height: 1.55; color: var(--mute); }
@media (max-width: 1020px) { .rd-g { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 560px) { .rd-v { grid-template-columns: minmax(0, 1fr); justify-items: center; } .rd-tips { grid-template-columns: minmax(0, 1fr); width: 100%; } }

/* ---------- 7. use cases ---------- */
.uc { display: grid; grid-template-columns: 300px minmax(0, 1fr); gap: 24px clamp(32px, 5vw, 72px); margin-top: clamp(40px, 5vw, 64px); }
.uc-tabs { display: grid; align-content: start; gap: 4px; }
.uc-tabs button { display: flex; align-items: center; min-height: 52px; padding: 0 18px; border-radius: 14px; text-align: left; font: 500 16.5px/1.25 var(--font); letter-spacing: -0.01em; color: var(--mute); transition: background-color 0.15s, color 0.15s; }
.uc-tabs button:hover { color: var(--ink); }
.uc-tabs button[aria-selected="true"] { background: var(--paper); color: var(--ink); box-shadow: 0 0 0 1px var(--line); }
.uc-p { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr); gap: 24px 40px; padding: clamp(24px, 3vw, 40px); border-radius: var(--r-lg); background: var(--paper); box-shadow: 0 0 0 1px var(--line); scroll-margin-top: 110px; }
.uc-t { display: grid; gap: 14px; align-content: start; }
.uc-when { display: flex; flex-wrap: wrap; gap: 4px 10px; margin-top: 6px; font: 500 15px/1.4 var(--font); color: var(--ink); }
.uc-when span { color: var(--mute); }
.uc-steps { counter-reset: s; display: grid; gap: 8px; align-content: start; }
.uc-steps li { counter-increment: s; display: grid; grid-template-columns: 28px minmax(0, 1fr); gap: 2px 12px; padding: 14px 16px; border-radius: 14px; background: var(--paper-2); }
.uc-steps li::before { content: counter(s); grid-row: span 2; font: 500 14px/1.4 var(--font); color: var(--red); }
.uc-steps b { font: 500 15.5px/1.4 var(--font); }
.uc-steps em { font: 400 14px/1.45 var(--font); font-style: normal; color: var(--ink-2); }
.uc-len { grid-column: 2; font: 500 14px/1 var(--font); color: var(--mute); }
@media (max-width: 1020px) { .uc { grid-template-columns: minmax(0, 1fr); } .uc-tabs { display: flex; flex-wrap: wrap; } .uc-tabs button { min-height: 40px; padding: 0 14px; border-radius: 999px; font-size: 14.5px; } }
@media (max-width: 720px) { .uc-p { grid-template-columns: minmax(0, 1fr); } .uc-len { grid-column: 1; } }

/* ---------- 8. pricing ---------- */
.pr-g { display: grid; grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr); gap: 40px clamp(40px, 6vw, 96px); align-items: start; }
.pr-l { display: grid; gap: 22px; }
.pr-r { display: grid; gap: 28px; }
.pr-big { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border-radius: var(--r-lg); background: var(--paper-2); }
.pr-big p { display: grid; gap: 10px; padding: clamp(24px, 3vw, 36px); }
.pr-big p + p { border-left: 1px solid var(--line-2); }
.pr-big b { font: 450 clamp(52px, 6vw, 84px)/0.95 var(--font); letter-spacing: -0.01em; }
.pr-big p:first-child b { color: var(--red); }
.pr-big span { font: 500 15px/1.4 var(--font); color: var(--ink-2); }
.pr-tbl { width: 100%; border-collapse: collapse; font-size: 15.5px; }
.pr-tbl th { padding: 0 0 10px; text-align: left; font: 500 13.5px/1.3 var(--font); color: var(--mute); border-bottom: 1px solid var(--line-2); }
.pr-tbl th:last-child, .pr-tbl td:last-child { text-align: right; }
.pr-tbl td { padding: 13px 0; border-bottom: 1px solid var(--line); }
.pr-tbl td:last-child { font-weight: 600; }
.pr-def { font-size: 15px; line-height: 1.55; color: var(--ink-2); }
@media (max-width: 960px) { .pr-g { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 460px) { .pr-big { grid-template-columns: minmax(0, 1fr); } .pr-big p + p { border-left: 0; border-top: 1px solid var(--line-2); } }

/* ---------- 9. privacy ---------- */
.pv-g { display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr); gap: 32px clamp(40px, 6vw, 96px); align-items: start; }
.pv-g .h2 { margin-top: 20px; }
.pv-r { display: grid; gap: 24px; }
@media (max-width: 960px) { .pv-g { grid-template-columns: minmax(0, 1fr); } }

/* ---------- 10. fit ---------- */
.fit { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; margin-top: 40px; }
.fit > div { display: grid; gap: 18px; align-content: start; padding: clamp(24px, 3vw, 40px); border-radius: var(--r-lg); box-shadow: 0 0 0 1px var(--line); }
.fit > div:first-child { background: var(--paper-2); box-shadow: none; }
@media (max-width: 760px) { .fit { grid-template-columns: minmax(0, 1fr); } }

/* ---------- 11. participants ---------- */
.pt-g { display: grid; grid-template-columns: minmax(0, 1.2fr) auto; gap: 24px 48px; align-items: center; }
.pt-g > div:first-child { display: grid; gap: 12px; max-width: 64ch; }
.stores { display: flex; flex-wrap: wrap; gap: 10px; }
.stores a { display: inline-flex; align-items: center; gap: 9px; height: 52px; padding: 0 18px 0 14px; border-radius: 12px; background: var(--ink); color: var(--paper); text-decoration: none; }
.stores svg { width: 22px; height: 22px; }
.stores span { display: grid; font: 500 16px/1.1 var(--font); }
.stores small { font: 500 10.5px/1.2 var(--font); opacity: 0.8; }
@media (max-width: 760px) { .pt-g { grid-template-columns: minmax(0, 1fr); } }

/* ---------- 12. faq ---------- */
.fq-g { display: grid; grid-template-columns: minmax(0, 0.7fr) minmax(0, 1.3fr); gap: 32px clamp(40px, 6vw, 96px); align-items: start; }
.fq-g .h2 { margin-top: 20px; }
@media (max-width: 960px) { .fq-g { grid-template-columns: minmax(0, 1fr); } }

/* ---------- 13. talk ---------- */
.talk-s { padding-top: 0; }
.talk { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr); border-radius: var(--r-lg); background: var(--band); color: var(--band-ink); overflow: hidden; }
.talk-a { display: grid; gap: 22px; align-content: start; padding: clamp(32px, 5vw, 64px); }
.talk-a .lead { color: color-mix(in srgb, var(--band-ink) 72%, transparent); max-width: 44ch; }
.talk-steps { counter-reset: t; display: grid; gap: 10px; margin-top: 12px; }
.talk-steps li { counter-increment: t; display: grid; grid-template-columns: 24px minmax(0, 1fr); gap: 10px; font-size: 15.5px; color: color-mix(in srgb, var(--band-ink) 80%, transparent); }
.talk-steps li::before { content: counter(t); font-weight: 600; color: #ff6b73; }
.talk-b { display: grid; gap: 18px; align-content: start; padding: clamp(32px, 5vw, 64px); background: var(--band-2); }
.talk-b .body { color: color-mix(in srgb, var(--band-ink) 72%, transparent); }
.talk .copy-mail { justify-self: start; box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--band-ink) 24%, transparent); color: var(--band-ink); }
.talk .copy-mail button { background: color-mix(in srgb, var(--band-ink) 12%, transparent); color: var(--band-ink); }
@media (max-width: 900px) { .talk { grid-template-columns: minmax(0, 1fr); } }
.ch-v .cap { justify-content: center; text-align: center; }