/* /how-it-works/ 說明頁（inc/howto.php 的 [ifd_howto]）。顏色跟主題（--ifd-*，深色／Sun 兩種）。手機優先：四個部分一欄、電腦兩欄。 */
.ifd-howto-pg{max-width:860px;margin:0 auto;font-size:17px;line-height:1.65;color:var(--ifd-fg,#f1eff7)}
.ifd-howto-pg *{box-sizing:border-box}
.ifd-howto-pg__lead{font-size:18px;margin:0 0 22px}
.ifd-howto-pg__parts{display:grid;grid-template-columns:1fr;gap:12px;margin:0 0 34px}
@media (min-width:720px){.ifd-howto-pg__parts{grid-template-columns:1fr 1fr}}
.ifd-howto-pg__part{display:flex;gap:14px;align-items:flex-start;padding:16px;border-radius:18px;border:1px solid var(--ifd-line,rgba(255,255,255,.11));background:var(--ifd-panel,#15151f);color:var(--ifd-fg,#f1eff7)!important;text-decoration:none!important;min-height:44px}
.ifd-howto-pg__part:hover{border-color:var(--ifd-brand,#6fe3c0)}
.ifd-howto-pg__ic{flex:none;width:56px;height:56px;border-radius:14px;display:flex;align-items:center;justify-content:center;background:var(--ifd-panel-2,#101019);color:var(--ifd-acc-text,#6fe3c0)}
.ifd-howto-pg__t{display:flex;flex-direction:column;gap:4px;min-width:0}
.ifd-howto-pg__t b{font-size:19px;line-height:1.25}
.ifd-howto-pg__t span{font-size:15.5px;line-height:1.5;color:var(--ifd-muted,#a5a2b4)}
.ifd-howto-pg__t em{font-style:normal;font-size:15px;font-weight:800;color:var(--ifd-acc-text,#6fe3c0);margin-top:2px}
.ifd-howto-pg__sec{margin:0 0 34px}
.ifd-howto-pg__sec h2{font-size:24px;line-height:1.25;margin:0 0 14px}
.ifd-howto-pg__read{display:grid;gap:12px}
.ifd-howto-pg__read > div{padding:14px 16px;border-radius:16px;background:var(--ifd-panel,#15151f);border:1px solid var(--ifd-line,rgba(255,255,255,.11))}
.ifd-howto-pg__read h3{font-size:17px;margin:0 0 4px}
.ifd-howto-pg__read p{margin:0;font-size:16px;color:var(--ifd-muted,#a5a2b4)}
/* 問答：跟展覽頁同一套（Q 圓章＋答案左邊線） */
.ifd-howto-pg__qa{display:flex;flex-direction:column;gap:12px}
.ifd-howto-pg__qa h3{position:relative;margin:6px 0 0;padding:0 0 0 38px;font-size:17px;line-height:1.35;font-weight:800;min-height:28px;display:flex;align-items:center}
.ifd-howto-pg__qa h3::before{content:"Q";position:absolute;left:0;top:50%;transform:translateY(-50%);width:28px;height:28px;border-radius:50%;background:var(--ifd-brand,#6fe3c0);color:#0a0a10;font-size:14px;font-weight:900;display:flex;align-items:center;justify-content:center}
.ifd-howto-pg__qa p{margin:0 0 6px 13px;padding:10px 14px 10px 24px;border-left:3px solid var(--ifd-brand,#6fe3c0);background:var(--ifd-panel-2,#101019);border-radius:0 12px 12px 0;font-size:16px;line-height:1.55}
.ifd-howto-pg__qa a,.ifd-howto-pg__fine a{color:var(--ifd-acc-text,#6fe3c0)}
.ifd-howto-pg__fine{font-size:15px;color:var(--ifd-muted,#a5a2b4);text-align:center}
.ifd-howto-pg__fine a{display:inline-block;padding:10px 4px}