/* 研發單位：雲鐸科技教育 Cloud Beacon EdTech｜優而美110課英語課程研發與製作；複製或改作時請保留來源署名。 */
.foundation-hero{padding:28px 0 18px}.intro-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-bottom:24px}.intro-heading .eyebrow{font-size:10px;letter-spacing:1.8px;margin:0 0 10px}.intro-heading h1{font-size:clamp(26px,3.2vw,37px);line-height:1.45;margin:0;letter-spacing:-.6px}.time-pill{flex-shrink:0;white-space:nowrap;border:1px solid #d3dfd8;background:#edf2ec;color:#375448;border-radius:30px;padding:8px 14px;font-size:13px}.intro-grid{display:grid;grid-template-columns:minmax(0,1.8fr) minmax(0,1fr);gap:16px}.routine-card,.help-phrase{border-radius:16px;padding:22px 24px}.routine-card{background:var(--paper);border:1px solid var(--mist)}.intro-label{font-size:13px;line-height:1.5;color:var(--muted);margin:0;font-weight:600}.routine-steps{list-style:none;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;padding:0;margin:22px 0 0}.routine-steps li{display:flex;flex-direction:column;min-width:0}.step-number{font-size:11px;color:#697775;letter-spacing:1px;margin-bottom:8px}.routine-steps strong{font-size:17px;color:var(--forest);font-weight:650;white-space:nowrap}.routine-steps small{font-size:12px;color:var(--muted);margin-top:4px}.help-phrase{background:#e6eeea;border:1px solid #d4e0d8;display:flex;flex-direction:column;align-items:flex-start}.help-english{font:25px/1.4 Georgia,serif;color:var(--forest);margin:17px 0 3px}.help-chinese{font-size:14px;color:#52695f;margin:0 0 14px}.help-phrase a{font-size:12px;color:var(--forest);text-underline-offset:4px;margin-top:auto}.intro-secondary{display:flex;justify-content:space-between;align-items:flex-start;gap:24px;padding:16px 0 20px;border-bottom:1px solid var(--mist)}.practice-notes{min-width:0;flex:1;font-size:13px;color:var(--muted)}.practice-notes summary{cursor:pointer;width:fit-content;color:#4c6259;line-height:1.8}.practice-notes summary:focus-visible,.intro-links a:focus-visible,.help-phrase a:focus-visible{outline:3px solid var(--clay);outline-offset:4px}.notes-content{max-width:540px;font-size:13px;line-height:1.9}.notes-content p{margin:10px 0 0}.intro-links{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:18px;font-size:13px}.intro-links a{color:#355c70;text-decoration:none;border-bottom:1px solid #b4c7c6;white-space:nowrap}.choose-heading{display:flex;justify-content:space-between;align-items:center;gap:16px;margin:22px 0 14px}.choose-heading h2{font-size:19px;margin:0}.choose-heading span{font-size:12px;color:var(--muted)}.foundation-hero .day-nav{display:grid;grid-template-columns:repeat(10,minmax(0,1fr));gap:8px}.foundation-hero .day-nav a{font-size:14px;text-align:center;padding:8px 0;border:1px solid #d3dfd8;background:transparent;color:var(--forest);transition:background .15s}.foundation-hero .day-nav a:hover{background:var(--mist)}.foundation-hero .day-nav a:focus-visible{outline:3px solid var(--clay);outline-offset:2px}@media(max-width:760px){.intro-heading{align-items:flex-start}.intro-grid{grid-template-columns:1fr}.routine-card,.help-phrase{padding:20px}.help-phrase{display:grid;grid-template-columns:1fr auto;column-gap:16px}.help-phrase .intro-label{grid-column:1/-1}.help-english{margin:10px 0 3px}.help-chinese{grid-column:1;margin:0}.help-phrase a{grid-column:2;grid-row:2/4;align-self:center;margin:0}.intro-secondary{flex-direction:column;gap:12px}.intro-links{justify-content:flex-start;gap:20px}}@media(max-width:440px){.foundation-hero{padding-top:20px}.intro-heading{flex-direction:column-reverse;gap:10px;margin-bottom:18px}.time-pill{font-size:11px;padding:4px 10px}.intro-heading .eyebrow{display:none}.intro-heading h1{font-size:27px}.routine-steps{grid-template-columns:1fr 1fr;gap:18px 20px;margin-top:18px}.step-number{margin-bottom:4px}.help-phrase{display:block}.help-phrase a{display:inline-block;margin-top:12px}.help-english{font-size:25px}.foundation-hero .day-nav{grid-template-columns:repeat(5,minmax(0,1fr))}.choose-heading{gap:8px}.choose-heading h2{font-size:18px}.choose-heading span{font-size:11px}}