.v2-student{--brand:#167cc7;--brand-dark:#1767a0;--wash:#eaf4fe;background:#f6f8fb;max-width:1180px}.v2-student .student-nav{max-width:1180px}.v2-student .student-main{max-width:1040px;margin:auto}.welcome{font-size:27px;margin-top:8px}.subject-tabs{display:grid;grid-template-columns:repeat(4,1fr);background:white;border-radius:16px;padding:8px;gap:8px;margin:18px 0 24px;border:1px solid #e5ebf2}.subject-tabs button{padding:18px 8px;border:0;border-radius:10px;background:transparent;color:#7b8796;display:flex;flex-direction:column;gap:8px;align-items:center}.subject-tabs button strong{font-size:19px;color:#546474}.subject-tabs button small{font-size:11px}.subject-tabs .active{background:#e8f3ff;color:#2783c7}.subject-tabs .active strong{color:#167cc7}.learnhero{display:flex;justify-content:space-between;align-items:center;padding:36px 40px;border-radius:20px;background:linear-gradient(120deg,#e5f2ff,#edf7ff 62%,#dfeeff);gap:20px;margin-bottom:22px}.learnhero h2{font-size:28px;letter-spacing:1px;color:#204c72;margin:14px 0}.learnhero p{color:#73869a;font-size:13px;line-height:1.9;margin-bottom:23px}.eyebrow{font-size:10px;letter-spacing:3px;color:#7f9cb5}.study-ring{border:9px solid #c6e0f5;border-top-color:#308ecc;border-radius:50%;height:155px;width:155px;flex-shrink:0;display:flex;flex-direction:column;justify-content:center;align-items:center;background:#f7fcff}.study-ring strong{font-size:42px;font-weight:700;color:#237cbb}.study-ring small{font-size:11px;color:#7f9cb5;margin-top:5px}.study-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin:22px 0}.study-tile{text-align:left;border:1px solid #e2eaf1;background:white;border-radius:15px;padding:24px 20px;color:#2c4659}.study-tile .iconbox{background:#eef6fd;color:#2987c8;width:43px;height:43px;margin-bottom:22px}.study-tile h3{font-size:16px}.study-tile p{font-size:11px;color:#8b99a6;margin-top:9px;line-height:1.8}.subject-number{font-size:94px;font-weight:750;color:#bfdcf2;letter-spacing:-6px;padding-right:8px}.coach-strip{display:flex;gap:14px;flex-wrap:wrap}.coach-mini{flex:1;min-width:110px;display:flex;flex-direction:column;gap:12px;align-items:center;border-right:1px solid #eef1f5;padding:10px}.coach-mini:last-child{border:0}.coach-mini .avatar{height:52px;width:52px;font-size:18px;background:#e8f2fa;color:#48728d}.coach-profile{display:flex;align-items:center;gap:20px}.coach-profile .avatar{height:70px;width:70px;font-size:24px}.coach-profile p{margin-top:12px;color:#7e90a0}.prose{line-height:1.9;font-size:13px;white-space:pre-wrap}.vip-pass{background:linear-gradient(120deg,#2d4052,#445465);color:#f3e4bf;border-radius:14px;padding:22px;display:flex;align-items:center;justify-content:space-between;gap:15px}.vip-pass p{font-size:12px;margin-top:12px;color:#bfcccf}.score-row{display:flex;gap:12px;flex-wrap:wrap}.score-row span{padding:10px 18px;background:#edf5fc;color:#467da2;border-radius:8px}.chat-layout{display:grid;grid-template-columns:220px minmax(0,1fr);background:white;border:1px solid #e4eaf0;border-radius:16px;overflow:hidden}.chat-peers{border-right:1px solid #e4eaf0;background:#fbfcfe}.chat-peers button{border:0;width:100%;padding:20px 15px;display:flex;gap:12px;text-align:left;background:transparent;align-items:center;color:#3a5060}.chat-peers button.active{background:#eaf4fe}.chat-peers small{display:block;font-size:10px;color:#8695a3;margin-top:7px}.chat-room>header{padding:20px;border-bottom:1px solid #eef1f4;font-weight:600}.chat-log{height:420px;overflow:auto;padding:24px;display:flex;flex-direction:column;gap:19px;background:#f7f9fc}.chat-line{max-width:82%;display:flex;flex-direction:column;gap:7px}.chat-line.out{align-self:flex-end;align-items:flex-end}.chat-line small{font-size:10px;color:#9ba6b3}.chat-bubble{padding:14px 18px;line-height:1.8;border-radius:2px 14px 14px;background:white;border:1px solid #e7edf3;white-space:pre-wrap;overflow-wrap:anywhere}.out .chat-bubble{background:#e2f0fc;border-color:#d3e7f8;border-radius:14px 2px 14px 14px;color:#255376}.chat-compose{display:flex;align-items:center;gap:12px;padding:18px}.chat-compose textarea{resize:vertical}.feed{max-width:760px;margin:auto}.feed .card{margin-bottom:18px;padding:26px}.post-text{white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.95;font-size:14px}.post-images{display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.post-images img{width:100%;height:170px;object-fit:cover;border-radius:9px;cursor:pointer}.post-comments{background:#f5f8fc;padding:0 15px;border-radius:9px}.post-comments p{padding:10px 0;font-size:12px;line-height:1.8}.post-comments strong{color:#387fab}.quiz-content{padding:15px 20px}.question-title{font-size:23px;line-height:1.8;margin:28px 0}.quiz-options{display:grid;gap:12px}.quiz-options .btn{justify-content:flex-start;text-align:left;white-space:normal;border:1px solid #e5ecf2;padding:20px;background:#fafcfe;font-size:15px}.quiz-options .btn.selected{border-color:#3c95d1;background:#eaf5ff;color:#126aa4}.answer-analysis{padding:20px;margin:20px 0;border-radius:10px;line-height:1.9}.answer-analysis p{margin-top:10px;font-size:13px}.answer-analysis.correct{background:#edf8f1;color:#36845e}.answer-analysis.incorrect{background:#fff4ed;color:#b47447}.question-map{display:flex;gap:10px;flex-wrap:wrap;margin:20px 0}.trial-steps{padding-left:22px;line-height:2.1}.trial-steps li{margin-bottom:12px;padding-left:5px}.v2-student .productvisual{background:#e5f1fa;color:#4b88b2}.v2-student .student-nav button{color:#8994a6}.v2-student .student-nav button.active{color:#167cc7}
@media(max-width:760px){.welcome{font-size:22px}.subject-tabs{gap:3px;padding:5px;margin-top:16px}.subject-tabs button{padding:15px 3px}.subject-tabs button strong{font-size:16px}.subject-tabs button small{font-size:10px}.learnhero{padding:25px 20px;gap:8px}.learnhero h2{font-size:22px;line-height:1.6}.learnhero p{font-size:11px;max-width:210px}.study-ring{width:92px;height:92px;border-width:6px}.study-ring strong{font-size:26px}.study-ring small{font-size:9px}.study-grid{grid-template-columns:repeat(2,1fr);gap:10px}.study-tile{padding:20px 15px}.study-tile .iconbox{margin-bottom:14px}.subject-number{font-size:65px}.chat-layout{grid-template-columns:1fr}.chat-peers{display:flex;overflow-x:auto;border-bottom:1px solid #e4eaf0}.chat-peers button{min-width:135px;padding:12px}.chat-peers .avatar{width:28px;height:28px;font-size:10px}.chat-log{height:370px;padding:15px}.chat-compose{padding:12px}.feed .card{padding:19px}.post-images img{height:110px}.quiz-content{padding:0}.question-title{font-size:20px}.quiz-options .btn{padding:16px;font-size:14px}.vip-pass{align-items:flex-start;flex-direction:column}.coach-mini{min-width:80px;padding:8px 3px}.coach-strip{gap:3px}.score-row{gap:7px}.score-row span{padding:9px 12px;font-size:12px}}