:root{--blue: #2f6bff;--blue-deep: #1b3fbf;--green: #16a37a;--orange: #f5901e;--orange-dark: #e07d0a;--ink: #17213a;--muted: #5b6577;--line: #e6e9f0;--bg: #f4f6fb;--card: #ffffff;--radius: 16px;--shadow: 0 10px 30px rgba(24, 39, 75, .08);--grad: linear-gradient(120deg, #2f6bff 0%, #1f8fd6 45%, #16a37a 100%)}*{box-sizing:border-box}html,body,#root{margin:0;height:100%}body{font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased}h1,h2,h3,.brand{font-family:Poppins,Inter,sans-serif}.container{width:min(1000px,92vw);margin:0 auto}.page{display:flex;flex-direction:column;min-height:100%}.site-header{background:#3d7ef6;color:#fff}.header-inner{display:flex;align-items:center;justify-content:space-between;padding:18px 0;gap:16px}.brand{display:inline-flex;align-items:center;text-decoration:none}.logo-img{height:42px;width:auto;display:block}.header-contact{display:flex;align-items:center;gap:22px}.contact-email{display:inline-flex;align-items:center;gap:8px;color:#fff;text-decoration:none;font-weight:600;font-size:15px}.contact-email:hover{text-decoration:underline}.contact-phone{display:inline-flex;align-items:center;gap:8px;background:#fff;color:var(--blue-deep);text-decoration:none;font-weight:700;font-size:15px;padding:11px 22px;border-radius:30px;box-shadow:0 6px 16px #091e502e;transition:transform .12s}.contact-phone:hover{transform:translateY(-1px)}.contact-phone svg{color:var(--blue)}.hero{background:linear-gradient(168deg,#3d7ef6,#2b8ad2 42%,#15a06c);color:#fff;padding:30px 0 64px;text-align:center}.hero h1{font-size:clamp(28px,4vw,44px);margin:8px 0 12px;font-weight:800}.hero p{margin:0 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16px;font-size:14px}.btn.ghost:hover{background:#e7ecf6}.btn.copy{background:var(--blue);color:#fff}.btn.copy:hover{background:var(--blue-deep)}.dd{position:relative}.dd-trigger{display:inline-flex;align-items:center;gap:10px;justify-content:space-between;min-width:220px;background:#fff;border:1.5px solid var(--line);border-radius:10px;padding:11px 14px;font-size:15px;font-weight:600;color:var(--ink);cursor:pointer;font-family:inherit}.dd-trigger:hover{border-color:#c9d2e5}.dd-trigger svg.flip{transform:rotate(180deg)}.dd-menu{position:absolute;z-index:30;top:calc(100% + 6px);left:0;width:300px;max-width:80vw;background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow);overflow:hidden}.dd-search{padding:10px;border-bottom:1px solid var(--line)}.dd-search input{width:100%;border:1.5px solid var(--line);border-radius:8px;padding:9px 12px;font-size:14px;font-family:inherit;outline:none}.dd-search input:focus{border-color:var(--blue)}.dd-options{max-height:260px;overflow-y:auto;padding:6px}.dd-option{width:100%;text-align:left;background:none;border:none;cursor:pointer;padding:10px 12px;border-radius:8px;font-size:14.5px;font-family:inherit;color:var(--ink);display:flex;align-items:center;justify-content:space-between}.dd-option:hover{background:#f4f7fd}.dd-option.selected{background:#eef4ff;color:var(--blue-deep);font-weight:600}.dd-empty{padding:16px;color:var(--muted);font-size:14px;text-align:center}.prefs{margin-top:16px;display:grid;grid-template-columns:1fr 1fr;gap:16px;background:#f7f9fd;border:1px solid var(--line);border-radius:12px;padding:16px}.pref-field{display:flex;flex-direction:column;gap:6px}.pref-field label{font-size:13px;font-weight:600;color:var(--muted)}.pref-field select{border:1.5px solid var(--line);border-radius:9px;padding:10px 12px;font-size:14.5px;font-family:inherit;background:#fff;color:var(--ink);cursor:pointer}.mode-tabs{display:flex;gap:8px;margin:20px 0 14px;border-bottom:1px solid var(--line)}.mode-tab{background:none;border:none;cursor:pointer;font-family:inherit;font-size:15px;font-weight:600;color:var(--muted);padding:10px 4px;margin-right:14px;border-bottom:2.5px solid transparent;margin-bottom:-1px}.mode-tab.active{color:var(--blue);border-color:var(--blue)}.search-wrap{display:flex;align-items:center;gap:10px;background:#fff;border:1.5px solid var(--line);border-radius:12px;padding:4px 14px}.search-wrap:focus-within{border-color:var(--blue);box-shadow:0 0 0 3px #2f6bff1f}.search-icon{color:var(--muted);flex-shrink:0}.search-input{flex:1;border:none;outline:none;font-size:16px;font-family:inherit;padding:14px 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var(--line);border-radius:14px;padding:20px;margin-top:20px;background:#fff}.cite-card.result{border-color:#cfe0ff;background:#fbfcff}.cite-card-head{display:flex;align-items:flex-start;justify-content:space-between;gap:10px}.cite-title{margin:0 0 6px;font-size:17px;font-weight:600}.cite-badge{display:inline-block;background:#eef4ff;color:var(--blue-deep);font-size:12px;font-weight:600;padding:3px 10px;border-radius:20px}.cite-block{margin-top:14px}.cite-label{display:block;font-size:12px;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--muted);margin-bottom:6px}.cite-text{margin:0;background:#f6f8fc;border:1px solid var(--line);border-radius:10px;padding:14px 16px;font-size:15.5px;line-height:1.65;color:var(--ink);font-family:Times New Roman,Georgia,serif;word-break:break-word}.cite-text.small{font-size:14.5px}.cite-notes{margin:12px 0 0;font-size:13px;color:#8a6d1a;background:#fff8e6;padding:8px 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p{margin:0;color:var(--muted);line-height:1.65;font-size:15px}.why-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}.why-card{background:#f7f9fd;border:1px solid var(--line);border-radius:16px;padding:26px 22px}.why-icon{font-size:30px;line-height:1;display:block;margin-bottom:14px}.why-card h3{margin:0 0 8px;color:var(--heading);font-size:18px}.why-card p{margin:0;color:var(--muted);line-height:1.6;font-size:14.5px}.faq-list{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:14px}.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden}.faq-item.open{border-color:#cfe0ff}.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;background:none;border:none;cursor:pointer;font-family:inherit;text-align:left;padding:18px 22px;font-size:16px;font-weight:600;color:var(--heading)}.faq-sign{color:var(--green);font-size:24px;font-weight:400;line-height:1;flex-shrink:0}.faq-a{margin:0;padding:0 22px 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640px){.prefs,.manual-grid{grid-template-columns:1fr}.tool-card{padding:18px}.dd-trigger{min-width:0;width:100%}.tool-toprow{flex-direction:column;align-items:stretch}.logo-text{font-size:21px}.header-contact{gap:12px}.contact-phone{padding:9px 16px;font-size:14px}.modes-grid,.why-grid,.tools-grid{grid-template-columns:1fr}.content-section{padding:44px 0}}