.tools-section{padding:clamp(72px,8vw,120px) 0}.section-alt{background:var(--card)}.chat-outer{width:100%;max-width:760px;margin-inline:auto}.chat-wrap{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);flex-direction:column;display:flex;overflow:hidden}.chat-header{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:12px;padding:16px 24px;display:flex}.chat-header h3{letter-spacing:.05em;min-width:0;color:var(--fg);font-size:19px}.chat-usage{font-size:var(--fs-sm);color:var(--muted);white-space:nowrap}.chat-messages{background:#f7f8fa;flex-direction:column;gap:14px;height:340px;padding:22px 24px;display:flex;overflow-y:auto}.chat-msg{word-break:break-word;overflow-wrap:anywhere;max-width:100%;font-size:var(--fs-base);border-radius:12px;padding:12px 18px;line-height:1.8}.chat-msg pre,.chat-msg code{white-space:pre-wrap;word-break:break-word;overflow-wrap:anywhere;max-width:100%}.chat-msg pre{overflow-x:auto}.chat-msg table{max-width:100%;display:block;overflow-x:auto}.chat-msg.bot{border:1px solid var(--border);max-width:88%;color:var(--fg);background:#fff;border-top-left-radius:4px;align-self:flex-start}.chat-msg.user{background:var(--red);color:#fff;border-top-right-radius:4px;align-self:flex-end;max-width:88%}.chat-msg.bot p{margin:0}.chat-msg.bot p+p{margin-top:8px}.chat-msg.bot ul,.chat-msg.bot ol{margin:6px 0;padding-left:20px}.chat-msg.bot ul{list-style:outside}.chat-msg.bot ol{list-style:decimal}.chat-msg.bot li{margin:2px 0}.chat-msg.bot a{color:var(--red);text-decoration:underline}.chat-input-row{border-top:1px solid var(--border);gap:12px;padding:16px 20px;display:flex}.chat-input-row input{border:1px solid var(--border);min-width:0;font-size:var(--fs-body);color:var(--fg);background:#fff;border-radius:10px;outline:none;flex:1;padding:14px 18px;transition:border-color .2s,box-shadow .2s}.chat-input-row input::placeholder{color:var(--muted)}.chat-input-row input:focus{border-color:var(--red);box-shadow:0 0 0 3px #b5172b1a}.chat-input-row .btn-red{font-size:var(--fs-body);letter-spacing:.04em;white-space:nowrap;border:0;border-radius:10px;flex-shrink:0;padding:15px 36px;font-weight:700;transition:background-color .2s,color .2s,border-color .2s,transform .2s,box-shadow .2s;box-shadow:0 6px 18px #b5172b47}@media (hover:hover){.chat-input-row .btn-red:hover{background:var(--red-hover);transform:translateY(-1px);box-shadow:0 10px 24px #8e102057}}.chat-limit{text-align:center;border-top:1px solid var(--border);flex-direction:column;align-items:center;padding:clamp(24px,2.4vw,36px);display:flex}.chat-limit-qr{border:1px solid var(--border);background:#fff;border-radius:10px;width:120px;margin:0 auto 16px;padding:6px;overflow:hidden}.chat-limit-qr img{object-fit:contain;width:100%;height:auto}.chat-limit h4{letter-spacing:.04em;color:var(--fg);margin-bottom:8px;font-size:19px}.chat-limit p{font-size:var(--fs-base);color:var(--fg-soft)}.calc-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:clamp(16px,1.6vw,26px);display:grid}.calc-grid .calc-card:nth-child(7){grid-column:2/3}.calc-card{text-align:center;background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);min-width:0;box-shadow:var(--shadow-sm);flex-direction:column;align-items:center;padding:clamp(26px,2.4vw,36px) clamp(22px,1.8vw,28px);transition:transform .25s,box-shadow .25s;display:flex}@media (hover:hover){.calc-card:hover{box-shadow:var(--shadow-md);transform:translateY(-4px)}}.tool-icon{width:52px;height:52px;color:var(--red);background:#b5172b14;border-radius:50%;justify-content:center;align-items:center;margin-bottom:14px;display:flex}.tool-icon svg{width:24px;height:24px}.calc-name{letter-spacing:.04em;color:var(--fg);margin-bottom:8px;font-size:19px}.calc-desc{font-size:var(--fs-base);color:var(--fg-soft);margin-bottom:20px;line-height:1.8}.calc-card .btn-sm{margin-top:auto;text-decoration:none;display:inline-block}.notice-bar{border-left:4px solid var(--red);font-size:var(--fs-base);color:var(--fg-soft);background:#fbf7f7;border-radius:0 10px 10px 0;margin-top:clamp(28px,3vw,40px);padding:16px 22px;line-height:1.9}.notice-bar a{color:var(--red);text-underline-offset:4px;-webkit-text-decoration:underline #b5172b59;text-decoration:underline #b5172b59}@media (hover:hover){.notice-bar a:hover{-webkit-text-decoration-color:var(--red);text-decoration-color:var(--red)}}@media (max-width:900px){.calc-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.calc-grid .calc-card:nth-child(7){grid-column:1/-1}}@media (max-width:600px){.chat-header{padding:14px 16px}.chat-messages{padding:16px 14px}.chat-msg.bot,.chat-msg.user{max-width:94%}.chat-input-row{gap:10px;padding:12px 14px}.chat-input-row .btn-red{padding:13px 18px}.calc-grid{grid-template-columns:minmax(0,1fr)}}