*{margin:0;padding:0;box-sizing:border-box;margin:0;padding:0;box-sizing:border-box;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}/* 全局禁止选中 */
body{font-family:'Inter',system-ui,sans-serif;min-height:100vh;overflow-x:hidden;position:relative}
#particleContainer{position:fixed;top:0;left:0;width:100vw;height:100vh;background:linear-gradient(135deg,#667eea,#764ba2);z:-1}
.particle{border-radius:50%;position:absolute;opacity:0.7;animation:float 15s linear infinite}
@keyframes float{0%{transform:translate(0,0) rotate(0deg);opacity:0.2}50%{opacity:0.7}100%{transform:translate(calc(Math.random()*100px-50px),calc(Math.random()*100px-50px)) rotate(360deg);opacity:0.2}}
.container{max-width:600px;width:100%;padding:20px;margin:0 auto;display:flex;flex-direction:column;min-height:100vh;justify-content:center}
.card{background:rgba(255,255,255,0.98);border-radius:24px;box-shadow:0 20px 80px rgba(102,126,234,0.2);padding:40px;position:relative;overflow:hidden}
.card::before{content:'';position:absolute;top:-50%;right:-50%;width:200%;height:200%;background:linear-gradient(45deg,rgba(94,114,228,0.08),rgba(130,94,228,0.03),transparent);transform:rotate(30deg);z:-1}
.card-header{text-align:center;margin-bottom:35px}
/* 图标样式 */
.icon-header{width:64px;height:64px;margin:0 auto 15px;position:relative;filter:drop-shadow(0 6px 12px rgba(94,114,228,0.3))}
.icon-header::before{content:'';position:absolute;top:12px;left:12px;right:12px;bottom:12px;border:4px solid #5e72e4;border-radius:10px}
.icon-header::after{content:'';position:absolute;top:22px;left:22px;width:20px;height:20px;border:4px solid #5e72e4;border-radius:6px}
.icon-input{width:20px;height:20px;position:absolute;left:15px;top:50%;transform:translateY(-50%);color:#718096;pointer-events:none}
.icon-input::before{content:'';position:absolute;top:0;left:0;width:100%;height:100%;border:2px solid #718096;border-radius:50%}
.icon-input::after{content:'';position:absolute;bottom:2px;right:2px;width:8px;height:8px;border:2px solid #718096;border-top:none;border-left:none;transform:rotate(45deg)}
.icon-btn{width:18px;height:18px;position:relative;display:inline-block;pointer-events:none}
.icon-search::before{content:'';width:12px;height:12px;border:2px solid #fff;border-radius:50%;position:absolute;top:0;left:0}
.icon-search::after{content:'';width:6px;height:2px;background:#fff;position:absolute;bottom:1px;right:1px;transform:rotate(-45deg)}
.icon-eye::before{content:'';width:14px;height:14px;border:2px solid #2d3748;border-radius:50%}
.icon-eye::after{content:'';width:8px;height:8px;background:rgba(45,55,72,0.3);border-radius:50%;position:absolute;top:3px;left:3px}
.icon-link::before{content:'';width:14px;height:14px;border:2px solid #2d3748;border-radius:3px;position:absolute;top:0;left:0}
.icon-link::after{content:'';width:4px;height:4px;background:#2d3748;border-radius:50%;position:absolute;top:4px;left:4px}
.icon-copy-img::before{content:'';width:14px;height:12px;border:2px solid #2d3748;border-radius:3px;position:absolute;top:0;left:0}
.icon-copy-img::after{content:'';width:8px;height:8px;border:2px solid #2d3748;border-right:none;border-bottom:none;position:absolute;top:2px;left:2px}
.icon-download::before{content:'';width:12px;height:14px;border:2px solid #fff;border-top:none;border-radius:0 0 3px 3px;position:absolute;top:0;left:2px}
.icon-download::after{content:'';width:6px;height:2px;background:#fff;position:absolute;bottom:-2px;left:4px;transform:rotate(-45deg)}
.icon-error::before{content:'';width:16px;height:16px;border:2px solid #f5365c;border-radius:50%;position:absolute;top:0;left:0}
.icon-error::after{content:'';width:2px;height:8px;background:#f5365c;position:absolute;top:4px;left:7px}
.icon-check::before{content:'';width:14px;height:8px;border:2px solid #fff;border-top:none;border-right:none;position:absolute;top:4px;left:2px;transform:rotate(-45deg)}
.btn-secondary .icon-btn::before,.btn-secondary .icon-btn::after{border-color:#2d3748;background-color:#2d3748}
/* 文本样式 */
.card-title{font-size:30px;color:#2d3748;font-weight:700;margin-bottom:8px}
.card-subtitle{font-size:16px;color:#718096}
.input-group{display:flex;gap:12px;margin-bottom:20px}
.input-wrapper{flex:1;position:relative;border-radius:16px;transition:all 0.3s}
.input-wrapper.focused{box-shadow:0 0 0 4px rgba(94,114,228,0.2)}
#urlInput{width:100%;padding:18px 18px 18px 48px;border:1px solid #e2e8f0;border-radius:16px;font-size:16px;transition:border-color 0.3s, box-shadow 0.3s;background:#f8f9fa;-webkit-user-select:text;-moz-user-select:text;-ms-user-select:text;user-select:text}/* 允许输入框选中 */
#urlInput:focus{outline:none;border-color:#5e72e4;background:#fff;box-shadow:0 0 0 2px rgba(94,114,228,0.1)}
#urlInput::placeholder{color:#a0aec0}
/* 按钮样式 */
.btn{display:flex;align-items:center;justify-content:center;gap:8px;padding:18px 26px;border:none;border-radius:16px;font-size:16px;font-weight:600;cursor:pointer;transition:all 0.3s;white-space:nowrap;position:relative;overflow:hidden;z-index:1}
.btn-inner{display:flex;align-items:center;justify-content:center;gap:8px;width:100%;height:100%;position:relative;z-index:2}
.btn-text{position:relative;z-index:2}
.btn *{pointer-events:none}
.btn-primary{background:linear-gradient(135deg,#5e72e4,#825ee4);color:#fff;box-shadow:0 6px 18px rgba(94,114,228,0.3)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 8px 24px rgba(94,114,228,0.4)}
.btn-secondary{background:#f1f5f9;color:#2d3748;border:1px solid #e2e8f0}
.btn-secondary:hover{background:#e8f4f8;transform:translateY(-3px);box-shadow:0 4px 12px rgba(0,0,0,0.05)}
.btn-accent{background:linear-gradient(135deg,#2dce89,#2dcecc);color:#fff;box-shadow:0 6px 18px rgba(45,206,137,0.3)}
.btn-accent:hover{transform:translateY(-3px);box-shadow:0 8px 24px rgba(45,206,137,0.4)}
/* 加载状态 */
.loading{display:flex;align-items:center;justify-content:center;gap:10px;padding:30px;margin-bottom:10px}
.spinner{width:24px;height:24px;border:3px solid rgba(94,114,228,0.2);border-top-color:#5e72e4;border-radius:50%;animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.preview-container{margin-top:20px;transition:all 0.5s}
.fade-in{animation:fadeIn 0.5s ease forwards}
@keyframes fadeIn{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
.preview-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}
.preview-title{font-size:18px;color:#2d3748;font-weight:600;display:flex;align-items:center;gap:8px}
.preview-tip{font-size:13px;color:#718096}
.ico-preview{display:flex;justify-content:center;margin-bottom:25px}
.ico-wrapper{padding:35px;background:linear-gradient(135deg,#f8f9fa,#f1f5f9);border-radius:20px;box-shadow:inset 0 0 25px rgba(0,0,0,0.03);transition:all 0.3s}
.ico-wrapper:hover{transform:scale(1.08);box-shadow:inset 0 0 30px rgba(0,0,0,0.05)}
.ico-img{width:90px;height:90px;object-fit:contain;transition:transform 0.33s;cursor:zoom-in}
.ico-img:hover{transform:scale(1.3)}
.action-buttons{display:flex;gap:12px;margin-bottom:25px;flex-wrap:wrap}
.code-container{display:flex;align-items:center;gap:12px;background:#f8f9fa;padding:18px;border-radius:16px;border:1px solid #e2e8f0}
.code-container label{font-size:14px;color:#718096;display:flex;align-items:center;gap:6px}
#icoUrl{flex:1;padding:12px;border:1px solid #e2e8f0;border-radius:10px;font-size:14px;background:#fff;cursor:text;-webkit-user-select:text;-moz-user-select:text;-ms-user-select:text;user-select:text}/* 允许地址框选中复制 */
.error-msg{display:flex;align-items:center;gap:8px;padding:14px;background:rgba(245,54,92,0.1);border-radius:10px;color:#f5365c;font-size:14px;margin-top:10px;transition:all 0.3s}
.shake{animation:shake 0.5s ease}
@keyframes shake{0%,100%{transform:translateX(0)}20%,60%{transform:translateX(-5px)}40%,80%{transform:translateX(5px)}}
.footer{text-align:center;margin-top:25px;font-size:14px;color:#a0aec0}
.hidden{display:none}
/* 响应式适配 */
@media(max-width:576px){
.card{padding:30px}
.input-group{flex-direction:column}
.btn{width:100%;padding:16px 20px}
.action-buttons{flex-direction:column}
.code-container{flex-direction:column;align-items:flex-start}
#icoUrl{width:100%}
.card-title{font-size:26px}
.ico-img{width:70px;height:70px}
}