:root{--bg:#f8fafc;--cyan:#2563eb;--purple:#8B5CF6;--t1:#F3F4F6;--t2:#6B7280;--t3:#374151;--card:rgba(7,20,40,.78);--bdr:rgba(37,99,235,.1)}
*{box-sizing:border-box}
body{background:var(--bg);color:#D1D5DB;font-family:-apple-system,BlinkMacSystemFont,'PingFang SC','Microsoft YaHei',sans-serif;margin:0;min-height:100vh}
.wrap{max-width:1100px;margin:0 auto;padding:48px 24px 60px;position:relative;z-index:1}
.hero{text-align:center;padding:20px 0 32px}
.hero .ic{font-size:3.4rem;margin-bottom:10px;animation:flt 3s ease-in-out infinite}
@keyframes flt{0%,100%{transform:translateY(0)}50%{transform:translateY(-8px)}}
h1{font-size:2.2rem;font-weight:700;color:var(--t1);margin:0 0 10px}
.hero p{color:var(--t2);font-size:.92rem;max-width:760px;margin:0 auto;line-height:1.8}
.card{background:var(--card);border:1px solid var(--bdr);border-radius:16px;padding:26px;margin-bottom:24px;backdrop-filter:blur(14px)}
.card h3{margin:0 0 18px;font-size:1.05rem;color:var(--t1)}
.fg{margin-bottom:16px}
.fg label{display:block;font-size:.88rem;color:var(--t2);margin-bottom:6px;font-weight:500}
.fg textarea{padding:12px 14px;background:rgba(10,14,23,.8);border:1px solid rgba(48,54,61,.5);border-radius:10px;color:var(--t1);font-size:.82rem;font-family:monospace;width:100%;resize:vertical;min-height:150px;line-height:1.5}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 34px;background:var(--cyan);color:var(--bg);border:none;border-radius:10px;font-size:.95rem;font-weight:600;cursor:pointer;transition:all .2s}
.btn:hover{box-shadow:0 0 24px rgba(37,99,235,.25)}
.btn:disabled{opacity:.5;cursor:wait}
#spin{text-align:center;padding:44px 0;color:var(--t2);display:none}
.spinner{display:inline-block;width:30px;height:30px;border:3px solid rgba(37,99,235,.15);border-top-color:var(--cyan);border-radius:50%;animation:spin .8s linear infinite;margin-bottom:10px}
@keyframes spin{to{transform:rotate(360deg)}}
#loginModal{display:none;position:fixed;inset:0;z-index:9999;background:rgba(2,8,18,.85);align-items:center;justify-content:center}
#loginModal .box{background:rgba(7,20,40,.95);border:1px solid rgba(37,99,235,.2);border-radius:16px;padding:36px 44px;text-align:center;max-width:360px}
#loginModal h3{color:var(--t1);margin:0 0 10px}
#loginModal p{color:var(--t2);font-size:.86rem;margin:0 0 20px}
#loginModal a{display:inline-block;background:var(--cyan);color:var(--bg);text-decoration:none;padding:10px 32px;border-radius:10px;font-weight:600}
#svgWrap{text-align:center;margin-bottom:16px}
#svgWrap svg{max-width:100%}
.note{color:#F59E0B;font-size:.8rem;margin:0 0 10px}
.sect{margin-top:22px}
.sect h4{color:var(--t1);font-size:.95rem;margin:0 0 12px}
table{width:100%;border-collapse:collapse;font-size:.8rem}
th{color:var(--t2);text-align:left;padding:8px;border-bottom:1px solid rgba(48,54,61,.5);font-weight:500;white-space:nowrap}
td{padding:8px;border-bottom:1px solid rgba(48,54,61,.22);color:#D1D5DB}
tr:hover td{background:rgba(37,99,235,.03)}
.fname{color:var(--t1);font-weight:600}
.ftype{color:var(--purple);font-size:.75rem}
.fpos{font-family:monospace;color:var(--t2);font-size:.75rem}
.dot{display:inline-block;width:10px;height:10px;border-radius:2px;margin-right:6px;vertical-align:middle}
.cut{font-family:monospace;color:#F87171;font-size:.75rem}
.legend{display:flex;gap:14px;flex-wrap:wrap;justify-content:center;margin-bottom:14px;font-size:.75rem;color:var(--t2)}
.legend span{display:inline-flex;align-items:center;gap:5px}