*{margin:0;padding:0;box-sizing:border-box}
body{font-family:'SimHei','Microsoft YaHei',-apple-system,sans-serif;background:linear-gradient(135deg,#e0e5ec,#c8d6e5);min-height:100vh}
a{text-decoration:none;color:inherit}

/* ===== Header ===== */
.header{background:linear-gradient(180deg,#0066cc 0%,#004499 100%);padding:16px 40px;display:flex;align-items:center;box-shadow:0 4px 10px rgba(0,0,0,.3);position:relative}
.flag{width:80px;height:53px;margin-right:24px;border-radius:6px;box-shadow:2px 2px 8px rgba(0,0,0,.3);flex-shrink:0}
.header h1{font-size:24px;color:#ffcc00;text-shadow:3px 3px 0 #996600,-1px -1px 0 #996600;font-weight:bold;letter-spacing:3px;flex:1}

/* ===== Auth Buttons ===== */
.auth-btns{display:flex;gap:10px;margin-left:auto;flex-shrink:0}
.auth-btns a{color:white;text-decoration:none;padding:8px 20px;border-radius:8px;font-size:14px;font-weight:600;transition:all .3s;border:1px solid rgba(255,255,255,.3)}
.auth-btns .login-btn{background:rgba(255,255,255,.2)}
.auth-btns .login-btn:hover{background:rgba(255,255,255,.35)}
.auth-btns .reg-btn{background:#ffcc00;color:#004499;border-color:#ffcc00}
.auth-btns .reg-btn:hover{background:#ffd633}
.auth-btns .user-name{color:#ffcc00;font-weight:bold;padding:8px 16px;display:flex;align-items:center;gap:6px}
.auth-btns .logout-link{color:rgba(255,255,255,.7);font-weight:400;padding:8px 12px;font-size:13px}
.auth-btns .logout-link:hover{color:#fff}

/* ===== Language Switch ===== */
.language-switch{position:relative;margin-left:15px;flex-shrink:0}
.lang-toggle{background:rgba(255,255,255,.2);border:1px solid rgba(255,255,255,.3);color:white;padding:8px 16px;border-radius:6px;cursor:pointer;font-size:14px;transition:all .3s;min-width:80px}
.lang-toggle:hover{background:rgba(255,255,255,.3)}
.language-dropdown{position:absolute;top:100%;right:0;margin-top:8px;background:rgba(0,68,153,.95);border:1px solid rgba(255,255,255,.3);border-radius:6px;box-shadow:0 4px 15px rgba(0,0,0,.3);display:none;flex-direction:column;z-index:100;min-width:120px}
.language-dropdown.show{display:flex}
.lang-option{background:transparent;border:none;color:white;padding:10px 20px;cursor:pointer;font-size:14px;text-align:left;transition:all .2s}
.lang-option:hover{background:rgba(255,255,255,.1)}
.lang-option.active{background:rgba(255,255,255,.2);color:#ffcc00;font-weight:bold}

/* ===== Container ===== */
.container{display:flex;flex-direction:column;align-items:center;padding:40px 20px;min-height:calc(100vh - 130px)}

/* ===== Notice Bar ===== */
.notice-bar{display:flex;align-items:center;gap:12px;background:linear-gradient(135deg,#fff9e6,#fff3cc);border:1px solid #f0d060;border-radius:10px;padding:10px 18px;margin-bottom:25px;width:100%;max-width:900px;box-shadow:0 2px 10px rgba(240,208,96,.2);overflow:hidden}
.notice-icon{font-size:20px;flex-shrink:0;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{transform:scale(1)}50%{transform:scale(1.15)}}
.notice-scroll{flex:1;overflow:hidden;position:relative;height:24px}
.notice-track{display:flex;gap:60px;white-space:nowrap;animation:scrollNotice 30s linear infinite;position:absolute;top:0;left:0}
.notice-track:hover{animation-play-state:paused}
@keyframes scrollNotice{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}
.notice-item{font-size:14px;color:#8a6d00;display:flex;align-items:center;gap:6px}
.notice-item .dot{width:6px;height:6px;border-radius:50%;background:#f0a000;flex-shrink:0}
.notice-item .time{color:#b09000;font-size:12px}

/* ===== Test Cards ===== */
.test-cards{display:flex;gap:30px;margin:30px 0 50px;flex-wrap:wrap;justify-content:center;width:100%;max-width:960px}
.test-card{flex:1;min-width:280px;max-width:440px;background:white;border-radius:16px;box-shadow:0 4px 20px rgba(0,0,0,.1);padding:0;cursor:pointer;transition:all .3s;overflow:hidden;text-align:center}
.test-card:hover{transform:translateY(-5px);box-shadow:0 12px 35px rgba(0,0,0,.15)}
.card-top{height:6px}.card-top.blue{background:linear-gradient(135deg,#0066cc,#004499)}
.card-top.green{background:linear-gradient(135deg,#27ae60,#1e8449)}
.card-top.orange{background:linear-gradient(135deg,#f39c12,#e67e22)}
.card-top.purple{background:linear-gradient(135deg,#2d5a3f,#1a3a2a)}
.card-icon{font-size:48px;margin:25px 0 15px}
.card-title{font-size:22px;color:#333;margin:0 0 12px;padding:0 20px}
.card-desc{font-size:14px;color:#666;padding:0 25px;line-height:1.6;margin-bottom:20px}
.card-features{display:flex;flex-wrap:wrap;gap:8px;justify-content:center;padding:0 20px;margin-bottom:25px}
.card-features span{background:#f0f4ff;color:#0066cc;padding:5px 12px;border-radius:20px;font-size:12px;font-weight:500}
.card-features.green span{background:#f0fff4;color:#1e8449}
.card-features.orange span{background:#fff8e1;color:#e67e22}
.card-features.dark span{background:#f0fff4;color:#1a3a2a}
.card-btn{width:calc(100% - 50px);margin:0 25px 25px;padding:14px 0;border:none;border-radius:10px;font-size:16px;font-weight:600;cursor:pointer;transition:all .3s;color:white}
.card-btn.blue{background:linear-gradient(135deg,#0066cc,#004499)}
.card-btn.blue:hover{box-shadow:0 6px 20px rgba(0,102,204,.4)}
.card-btn.green{background:linear-gradient(135deg,#27ae60,#1e8449)}
.card-btn.green:hover{box-shadow:0 6px 20px rgba(39,174,96,.4)}
.card-btn.orange{background:linear-gradient(135deg,#f39c12,#e67e22)}
.card-btn.orange:hover{box-shadow:0 6px 20px rgba(243,156,18,.4)}
.card-btn.dark{background:linear-gradient(135deg,#2d5a3f,#1a3a2a)}
.card-btn.dark:hover{box-shadow:0 6px 20px rgba(45,90,63,.4)}

/* ===== Footer ===== */
.footer{text-align:center;padding:30px 0;color:#888;font-size:13px;background:rgba(0,68,153,.1)}
.footer-links{margin-bottom:10px}
.footer-links a{color:#0066cc;text-decoration:none;margin:0 15px}
.footer-links a:hover{text-decoration:underline}

/* ===== Badge ===== */
.badge{background:rgba(0,102,204,.15);border:1px solid rgba(0,102,204,.3);color:#0066cc;padding:8px 24px;border-radius:20px;font-size:14px;margin-bottom:30px}
.main-title{font-size:42px;color:#0066cc;font-weight:700;margin-bottom:20px;text-align:center;letter-spacing:6px}
.subtitle{font-size:18px;color:#666;margin-bottom:40px;text-align:center}
.description{font-size:16px;color:#555;line-height:1.8;max-width:800px;text-align:center;margin-bottom:50px;background:rgba(255,255,255,.8);padding:30px;border-radius:12px;box-shadow:0 4px 20px rgba(0,0,0,.1)}

/* ===== Form Styles ===== */
.form-card{background:rgba(255,255,255,.95);border-radius:16px;box-shadow:0 8px 40px rgba(0,0,0,.15);padding:50px 40px;width:100%;max-width:420px}
.form-card h2{text-align:center;color:#004499;font-size:28px;margin-bottom:10px;letter-spacing:3px}
.form-card .form-subtitle{text-align:center;color:#666;font-size:14px;margin-bottom:30px}
.form-group{margin-bottom:22px}
.form-group label{display:block;color:#333;font-size:14px;font-weight:bold;margin-bottom:8px}
.form-group input,.form-group select{width:100%;padding:14px 16px;border:2px solid #d0d8e8;border-radius:10px;font-size:16px;transition:all .3s;background:#f5f8fc;outline:none}
.form-group input:focus,.form-group select:focus{border-color:#0066cc;background:#fff;box-shadow:0 0 0 3px rgba(0,102,204,.15)}
.form-group input::placeholder{color:#aab}
.form-btn{width:100%;padding:14px;background:linear-gradient(135deg,#0066cc,#004499);color:#fff;border:none;border-radius:10px;font-size:18px;font-weight:600;cursor:pointer;transition:all .3s;box-shadow:0 4px 15px rgba(0,102,204,.4);letter-spacing:4px}
.form-btn:hover{transform:translateY(-2px);box-shadow:0 8px 25px rgba(0,102,204,.5)}
.form-btn:active{transform:translateY(0)}
.form-links{text-align:center;margin-top:25px}
.form-links a{color:#0066cc;text-decoration:none;font-size:14px}
.form-links a:hover{text-decoration:underline}
.form-links span{color:#ccc;margin:0 12px}
.error-msg{background:#fff0f0;color:#e74c3c;padding:12px 16px;border-radius:8px;font-size:14px;margin-bottom:20px;border-left:4px solid #e74c3c;display:none}
.success-msg{background:#d4edda;color:#155724;padding:12px 16px;border-radius:8px;font-size:14px;margin-bottom:20px;border-left:4px solid #28a745;display:none}

/* ===== Steps ===== */
.steps{display:flex;justify-content:center;margin-bottom:30px;gap:0}
.step-item{display:flex;align-items:center;font-size:13px;color:#999}
.step-item .num{width:30px;height:30px;border-radius:50%;background:#e0e5ec;display:flex;align-items:center;justify-content:center;font-weight:bold;margin-right:8px}
.step-item.active .num{background:#0066cc;color:#fff}
.step-item.done .num{background:#27ae60;color:#fff}
.step-line{width:40px;height:2px;background:#e0e5ec;margin:0 5px}
.step-line.active{background:#0066cc}

/* ===== Test Interface ===== */
.test-container{max-width:800px;margin:0 auto;padding:20px;width:100%}
.test-progress{margin-bottom:24px}
.progress-bar{height:8px;background:#e0e5ec;border-radius:4px;overflow:hidden}
.progress-fill{height:100%;background:linear-gradient(90deg,#0066cc,#004499);border-radius:4px;transition:width .3s}
.progress-text{display:flex;justify-content:space-between;margin-top:6px;font-size:13px;color:#666}
.test-question{background:#fff;border-radius:16px;padding:30px;box-shadow:0 4px 20px rgba(0,0,0,.1);margin-bottom:20px}
.q-number{display:inline-block;background:#0066cc;color:#fff;padding:4px 14px;border-radius:12px;font-size:13px;font-weight:600;margin-bottom:14px}
.q-text{font-size:18px;color:#333;line-height:1.7;margin-bottom:24px}
.q-options{display:flex;flex-direction:column;gap:10px}
.q-option{display:flex;align-items:center;gap:12px;padding:14px 18px;border:2px solid #e0e5ec;border-radius:12px;cursor:pointer;transition:all .2s}
.q-option:hover{border-color:#0066cc;background:#f5f8ff}
.q-option.selected{border-color:#0066cc;background:#e8f0fe}
.q-option .radio{width:20px;height:20px;border-radius:50%;border:2px solid #ccc;display:flex;align-items:center;justify-content:center;flex-shrink:0;transition:all .2s}
.q-option.selected .radio{border-color:#0066cc}
.q-option.selected .radio::after{content:'';width:10px;height:10px;border-radius:50%;background:#0066cc}
.q-option .opt-label{font-weight:600;color:#0066cc;min-width:24px}
.test-nav{display:flex;gap:12px;justify-content:center;margin-top:20px}
.test-nav button{padding:12px 32px;border:none;border-radius:10px;font-size:16px;font-weight:600;cursor:pointer;transition:all .2s}
.btn-prev{background:#e0e5ec;color:#666}
.btn-prev:hover{background:#d0d5e0}
.btn-next{background:linear-gradient(135deg,#0066cc,#004499);color:#fff;box-shadow:0 4px 12px rgba(0,102,204,.3)}
.btn-next:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(0,102,204,.4)}
.btn-submit{background:linear-gradient(135deg,#27ae60,#1e8449);color:#fff;box-shadow:0 4px 12px rgba(39,174,96,.3)}
.btn-submit:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(39,174,96,.4)}

/* ===== Result ===== */
.result-container{max-width:700px;margin:0 auto;padding:20px;width:100%}
.result-card{background:#fff;border-radius:16px;padding:40px;box-shadow:0 4px 20px rgba(0,0,0,.1);text-align:center;margin-bottom:20px}
.result-grade{font-size:72px;font-weight:800;color:#0066cc;margin:20px 0}
.result-detail{display:grid;grid-template-columns:1fr 1fr;gap:12px;text-align:left;margin:20px 0}
.result-item{display:flex;justify-content:space-between;padding:10px 16px;background:#f5f8fc;border-radius:8px;font-size:14px}
.result-item .label{color:#666}
.result-item .value{font-weight:600;color:#333}

/* ===== Responsive ===== */
@media(max-width:768px){
.header{flex-direction:column;padding:12px;align-items:center}
.flag{width:50px;height:34px;margin-right:0;margin-bottom:8px}
.header h1{font-size:16px;text-align:center;letter-spacing:2px;flex:none;width:100%}
.auth-btns{margin:8px auto 0}
.language-switch{margin:8px auto 0}
.main-title{font-size:28px;letter-spacing:4px}
.subtitle{font-size:16px}
.description{font-size:14px;padding:20px;margin:20px 10px 40px}
.form-card{padding:30px 20px}
.form-card h2{font-size:22px}
.test-cards{flex-direction:column;align-items:center}
.test-card{min-width:260px;max-width:100%}
.test-question{padding:20px}
.q-text{font-size:16px}
.result-grade{font-size:48px}
}