/* 悦唱官网候选：同一案例的自学与老师指导路径。沿用当前候选品牌与白色底。 */
.hero-heading{align-items:flex-start;gap:44px}.hero h1{font-size:clamp(38px,4.3vw,59px);line-height:1.3}.hero-intro{max-width:420px;padding-top:5px}.hero-intro p{font-size:16px;margin-bottom:19px}.hero-choices{display:flex;align-items:center;gap:19px;flex-wrap:wrap}.hero-choices .inline-link{font-size:13px;gap:5px}.solid-button,.secondary-button{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:44px;border-radius:7px;padding:10px 16px;font:500 14px/1.5 var(--body);cursor:pointer;text-align:center;white-space:nowrap;touch-action:manipulation}.solid-button{background:var(--red);color:white}.solid-button:hover{background:#c72a0a}.secondary-button{background:white;color:var(--ink);border:1px solid #cfc5bf}.secondary-button:hover{border-color:var(--red);color:var(--red)}.hero-choices .solid-button .icon{width:17px;height:17px}.stage-bottom p{max-width:65%;line-height:1.7}
.journey-section{padding-block:84px 30px;scroll-margin-top:20px}.journey-heading{display:flex;justify-content:space-between;align-items:flex-end;gap:32px;margin-bottom:28px}.journey-heading h2{font-size:36px;font-weight:600;line-height:1.4;letter-spacing:-.025em}.journey-heading p{max-width:580px;color:var(--secondary);font-size:15px;line-height:1.85;margin-top:16px}.journey-tabs{display:flex;background:#f3f1ef;border-radius:9px;padding:5px;gap:4px;flex-shrink:0}.journey-tabs button{padding:10px 22px;min-height:46px;white-space:nowrap;font-size:15px;line-height:1.5;border-radius:6px;transition:background .16s,color .16s}.journey-tabs button[aria-selected=true]{background:var(--ink);color:white}.journey-shell{border:1px solid var(--line);border-radius:12px;overflow:hidden;background:white}.journey-steps{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));padding:8px 20px;border-bottom:1px solid var(--line);background:#faf9f8;gap:8px}.journey-steps button{display:flex;align-items:center;justify-content:center;gap:9px;min-height:54px;padding:8px;font-size:14px;line-height:1.5;border-radius:6px;position:relative}.journey-steps button>span:first-child{font-size:12px;display:inline-flex;align-items:center;justify-content:center;min-width:22px;height:22px;border-radius:50%;background:#eee8e3;color:var(--secondary)}.journey-steps button[aria-current=step]{color:var(--red);background:white}.journey-steps button[aria-current=step]>span:first-child{background:var(--red);color:white}.journey-steps button[aria-current=step]:after{content:'';position:absolute;bottom:-9px;left:10px;right:10px;height:2px;background:var(--red)}.journey-steps button:hover{background:white}.journey-panel{padding:38px;min-width:0;min-height:415px}.journey-grid{display:grid;grid-template-columns:minmax(0,.88fr) minmax(0,1.12fr);gap:42px;align-items:start}.journey-copy{min-width:0}.journey-kicker{font-size:12px;color:var(--red);margin-bottom:12px;display:block}.journey-copy h3{font-size:26px;line-height:1.45;font-weight:500;letter-spacing:-.02em}.journey-copy p{font-size:15px;color:var(--secondary);line-height:1.9;margin-top:14px}.journey-tags{display:flex;flex-wrap:wrap;gap:7px;margin-top:20px}.journey-tags span{font-size:12px;line-height:1.6;color:#625953;background:#f5f2ef;border-radius:5px;padding:5px 9px}.journey-preview{min-width:0;background:#f8f6f4;border-radius:8px;padding:24px}.journey-preview h4{margin:0 0 17px;font-size:17px;line-height:1.5;font-weight:500}.journey-preview h5{font-size:14px;line-height:1.5;margin:16px 0 8px;font-weight:500}.journey-preview p{font-size:14px;line-height:1.8;color:var(--secondary);margin-top:10px}.journey-preview strong{font-weight:500;color:var(--ink)}.journey-preview ul{margin:12px 0 0;padding-left:20px;font-size:14px;color:var(--secondary);line-height:1.9}.metric-list{margin:0;display:grid;gap:0}.measure-row{display:flex;align-items:baseline;justify-content:space-between;gap:18px;padding:12px 0;border-bottom:1px solid #e4ddd7;font-size:14px}.measure-row:first-child{padding-top:0}.measure-row dt,.measure-row dd{margin:0}.measure-row dt{color:var(--secondary)}.measure-row dd{font-variant-numeric:tabular-nums;text-align:right}.measure-row:last-child{border-bottom:0}.target-phrase{font-size:24px;line-height:1.8;letter-spacing:.1em;padding:7px 0 15px;font-weight:500}.target-phrase mark{color:var(--red);background:#fce9e1;border-radius:3px;padding:2px 3px}.journey-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:24px}.journey-actions .inline-link{font-size:13px}.demo-note{font-size:12px!important;line-height:1.8!important;color:var(--secondary)!important;margin-top:14px!important}.journey-disclosure{color:var(--secondary);font-size:12px;line-height:1.8;margin-top:14px;max-width:900px}.task-builder{display:grid;gap:16px}.field{display:flex;flex-direction:column;gap:7px;min-width:0;font-size:13px}.field>label,.field>span{color:#5d514a}.field-row{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:12px}.task-builder select,.task-builder input,.task-builder textarea,.journey-preview textarea{width:100%;min-width:0;border:1px solid #cfc5bf;border-radius:6px;background:white;color:var(--ink);font:400 14px/1.65 var(--body);padding:10px 12px;min-height:44px}.task-builder textarea,.journey-preview textarea{min-height:96px;resize:vertical}.task-preview{font-size:14px;line-height:1.85}.task-preview dl{margin:0}.task-preview p{margin-top:8px}.task-preview blockquote,.review-note{margin:16px 0 0;padding:14px 16px;background:white;border-radius:6px;font-size:14px;line-height:1.9;white-space:pre-wrap;overflow-wrap:anywhere}.record-slots{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:12px;margin-top:14px}.record-slot{border:1px dashed #cfc5bf;border-radius:6px;padding:16px;min-height:115px;background:white}.record-slot h5{margin:0 0 9px}.record-slot p{font-size:12px;line-height:1.8;margin:5px 0 0}.record-slot span{font-size:12px;color:var(--secondary)}.journey-panel [role=status]{font-size:12px;line-height:1.8;color:var(--secondary);margin-top:12px}.journey-panel [role=status]:empty{display:none}.journey-panel .step-navigation{display:flex;align-items:center;justify-content:space-between;gap:16px;border-top:1px solid var(--line);margin-top:30px;padding-top:20px}.journey-panel .step-navigation button{min-height:44px;font-size:13px}.journey-panel .step-navigation button:disabled{cursor:default;opacity:.45}.journey-panel select,.journey-panel textarea{scroll-margin-block:120px}.journey-panel.is-entering{animation:journey-enter .2s ease-out}@keyframes journey-enter{from{opacity:.5;transform:translateY(5px)}to{opacity:1;transform:translateY(0)}}
.learning-section{padding-top:64px}.teacher-proof{padding-top:82px;padding-bottom:70px}.teacher-proof-heading{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:12px 65px;align-items:start}.teacher-proof-heading h2{font-size:34px;line-height:1.45;font-weight:600;letter-spacing:-.02em;grid-row:span 2}.teacher-proof-heading>p{font-size:15px;line-height:1.9;color:var(--secondary);max-width:450px}.teacher-proof-heading>.inline-link{justify-self:start}.teacher-evidence{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:38px;margin-top:36px}.teacher-evidence article{padding-top:22px;border-top:1px solid var(--line)}.teacher-evidence .icon{color:var(--red);width:24px;height:24px;margin-bottom:14px}.teacher-evidence h3{font-size:20px;font-weight:500}.teacher-evidence p{font-size:14px;line-height:1.9;color:var(--secondary);margin-top:10px}.teacher-proof-bottom{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:30px;padding-top:14px;border-top:1px solid var(--line)}.teacher-proof-bottom>span{font-size:12px;line-height:1.8;color:var(--secondary)}.teacher-proof-bottom .inline-link{font-size:13px}
@media(max-width:1100px){.hero h1{font-size:47px}.hero-intro{max-width:365px}.hero-intro p{font-size:15px}.journey-panel{padding:28px}.journey-grid{gap:28px}.journey-copy h3{font-size:23px}.journey-steps{padding-inline:12px;gap:2px}.journey-steps button{font-size:13px;gap:6px}.journey-preview{padding:20px}.teacher-proof-heading{gap:12px 35px}}
@media(max-width:800px){.hero-intro{display:block;max-width:100%;margin-top:16px;padding:0}.hero-intro p{margin-bottom:12px}.hero-choices{gap:18px}.hero h1{font-size:46px}.journey-section{padding-top:64px}.journey-heading h2{font-size:30px}.journey-heading p{font-size:14px;max-width:400px}.journey-tabs button{padding:10px 16px;font-size:14px}.journey-panel{padding:24px}.journey-grid{grid-template-columns:minmax(0,1fr);gap:22px}.journey-copy h3{font-size:24px}.journey-copy p{font-size:14px;margin-top:10px}.journey-tags{margin-top:14px}.journey-steps{padding:8px}.journey-steps button{flex-direction:column;gap:5px;font-size:12px;min-height:64px}.journey-preview{padding:22px}.teacher-proof{padding-top:64px;padding-bottom:55px}.teacher-proof-heading h2{font-size:29px}.teacher-proof-heading>p{font-size:14px}.teacher-evidence{gap:24px}.teacher-evidence h3{font-size:18px}.teacher-evidence p{font-size:13px}}
@media(max-width:600px){.hero h1{font-size:clamp(29px,8.2vw,36px);line-height:1.35;letter-spacing:-.035em}.hero-intro p{font-size:14px;line-height:1.85}.hero-choices{gap:8px 14px}.hero-choices .solid-button{font-size:12px;padding:10px 12px}.hero-choices .inline-link{font-size:12px;min-height:44px;margin:0}.stage-bottom p{max-width:none;font-size:11px}.journey-section{padding-top:52px;padding-bottom:22px}.journey-heading{display:block;margin-bottom:20px}.journey-heading h2{font-size:28px}.journey-heading p{font-size:14px;margin-top:14px}.journey-tabs{margin-top:22px;max-width:340px}.journey-tabs button{flex:1;font-size:14px;min-height:46px}.journey-steps{gap:2px;padding:8px 5px}.journey-steps button{font-size:11px;line-height:1.5;gap:5px;padding:5px 0;min-height:66px}.journey-steps button>span:first-child{font-size:11px;width:21px;height:21px;min-width:21px}.journey-steps button[aria-current=step]:after{left:2px;right:2px;bottom:-9px}.journey-panel{padding:22px 18px;min-height:0}.journey-grid{gap:22px}.journey-kicker{font-size:12px;margin-bottom:9px}.journey-copy h3{font-size:23px}.journey-copy p{font-size:14px}.journey-tags{gap:6px}.journey-tags span{font-size:11px;padding:4px 7px}.journey-preview{padding:18px 16px}.journey-preview h4{font-size:16px}.journey-preview p,.journey-preview ul{font-size:13px}.measure-row{font-size:13px;gap:14px}.target-phrase{font-size:22px;letter-spacing:.04em}.journey-actions{gap:9px;margin-top:20px}.journey-actions .solid-button,.journey-actions .secondary-button{font-size:13px;padding:10px 12px}.journey-actions .inline-link{font-size:12px}.demo-note,.journey-disclosure{font-size:11px!important}.field-row{gap:10px}.record-slots{grid-template-columns:minmax(0,1fr);gap:10px}.record-slot{min-height:88px;padding:14px}.journey-panel .step-navigation{margin-top:22px;padding-top:16px}.journey-panel .step-navigation .solid-button{font-size:12px;padding:10px 12px}.journey-panel .step-navigation .secondary-button{font-size:12px;padding:10px 12px}.learning-section{padding-top:38px}.teacher-proof{padding-top:50px;padding-bottom:42px}.teacher-proof-heading{display:block}.teacher-proof-heading h2{font-size:28px}.teacher-proof-heading>p{font-size:14px;margin-top:16px}.teacher-proof-heading>.inline-link{margin-top:8px;font-size:13px}.teacher-evidence{display:block;margin-top:22px}.teacher-evidence article{position:relative;padding:20px 0 20px 39px}.teacher-evidence .icon{position:absolute;left:0;top:23px;width:23px;height:23px}.teacher-evidence h3{font-size:19px}.teacher-evidence p{font-size:13px;margin-top:8px}.teacher-proof-bottom{display:block;margin-top:10px}.teacher-proof-bottom>span{font-size:11px}.teacher-proof-bottom .inline-link{font-size:12px;margin-top:4px}.closing h2{font-size:25px;max-width:330px}}
@media(max-width:360px){.hero h1{font-size:29px}.hero-choices{gap:7px 11px}.hero-choices .solid-button{padding-inline:10px}.hero-choices .inline-link{font-size:11px;gap:2px}.journey-panel{padding-inline:14px}.journey-preview{padding-inline:13px}.target-phrase{font-size:20px}.journey-steps button{font-size:10px}.field-row{grid-template-columns:minmax(0,1fr)}}
.journey-steps .step-number{position:static;margin:0;flex-shrink:0;font-weight:400}
.journey-copy h3:focus{outline:none}.measure-row>:first-child{color:var(--secondary)}.measure-row>:last-child{text-align:right}.stage-links{display:flex;align-items:center;gap:20px}.stage-links .inline-link{font-size:12px}.stage-bottom>p{max-width:55%}.journey-panel>.journey-grid{animation:journey-enter .18s ease-out}
@media(max-width:600px){.stage-bottom>p{max-width:none}.stage-links{gap:20px;flex-wrap:wrap}.task-builder select,.task-builder textarea,.journey-preview textarea{font-size:16px}}
@media(prefers-reduced-motion:reduce){.journey-panel.is-entering,.journey-panel>.journey-grid{animation:none}}