.bia-page { --bia-ink: #142039; --bia-muted: #59677e; --bia-line: #e6e9f1; --bia-soft: #f7f8fc; --bia-pink: #dc1498; color: var(--bia-ink); background: #fff; }
.bia-page * { box-sizing: border-box; }
.bia-page .container { max-width: 1240px; }
.bia-page .header .logo-img { max-width: 210px; height: auto; }
@media(min-width:1025px) { .bia-page .header-inner { max-width: 1440px; padding-left: 24px; padding-right: 24px; } .bia-page .nav-link { padding-left: 10px; padding-right: 10px; } .bia-page .header-cta { gap: 10px; } }
@media(min-width:1025px) and (max-width:1400px) { .bia-page .header-phone,.bia-page .header-cta .btn-secondary { display: none; } .bia-page .header .logo-img { max-width: 165px; } .bia-page .nav-link { font-size: .8rem; } }
.bia-hero { padding: calc(var(--header-height, 90px) + 3rem) 0 4.5rem; background: radial-gradient(ellipse at 85% 10%, #fce7f6 0, transparent 50%), linear-gradient(#fff,#fcfbff); }
.bia-crumb { display: flex; flex-wrap: wrap; gap: .6rem; color: var(--bia-muted); font-size: .8rem; margin-bottom: 2rem; }
.bia-crumb a { color: inherit; }
.bia-hero-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); align-items: center; gap: 4rem; }
.bia-kicker { color: var(--bia-pink); text-transform: uppercase; font-size: .74rem; font-weight: 800; letter-spacing: .14em; margin: 0 0 1rem; }
.bia-page h1 { font-size: clamp(2.3rem,4.2vw,3.65rem); line-height: 1.08; letter-spacing: -.045em; margin: 0 0 1.5rem; color: var(--bia-ink); }
.bia-page h1 span,.bia-page h2 span { color: var(--bia-pink); }
.bia-lead { font-size: 1.12rem; line-height: 1.75; color: var(--bia-muted); max-width: 600px; margin-bottom: 1.75rem; }
.bia-actions { display: flex; flex-wrap: wrap; gap: .75rem; }
.bia-page .btn-primary { color: #fff; }
.bia-hero-price { margin-top: 1.4rem; color: var(--bia-muted); font-size: .88rem; }
.bia-hero-price strong { font-size: 1.3rem; color: var(--bia-ink); }
.bia-mail { background: #fff; border: 1px solid var(--bia-line); border-radius: 18px; overflow: hidden; color: var(--bia-ink); box-shadow: 0 18px 55px #23304d10; }
.bia-mail-head { padding: 1rem 1.4rem; border-top: 3px solid var(--bia-pink); border-bottom: 1px solid var(--bia-line); display: flex; justify-content: space-between; flex-wrap: wrap; gap: .6rem; align-items: center; }
.bia-brand { font-size: 1.05rem; font-weight: 800; letter-spacing: -.03em; }
.bia-brand span { color: var(--bia-pink); }
.bia-demo-label { font-size: .7rem; color: var(--bia-muted); }
.bia-mail-body { padding: 1.5rem; }
.bia-mail h3 { font-size: 1.2rem; line-height: 1.4; margin: 0 0 .6rem; color: var(--bia-ink); }
.bia-mail-meta { color: var(--bia-muted); font-size: .78rem; margin-bottom: 1rem; overflow-wrap: anywhere; }
.bia-tags { display: flex; flex-wrap: wrap; gap: .4rem; margin-bottom: 1rem; }
.bia-tag { background: #f0f3f9; border-radius: 5px; color: #43536e; padding: .25rem .55rem; font-size: .72rem; font-weight: 600; }
.bia-tag-pink { background: #fceaf6; color: #a91075; }
.bia-tag-amber { background: #fff3dc; color: #815600; }
.bia-mail-summary { background: #fcf1f9; border-left: 3px solid var(--bia-pink); padding: 1rem; border-radius: 0 7px 7px 0; font-size: .87rem; line-height: 1.75; margin-bottom: 1rem; }
.bia-mail-summary strong { display: block; margin-bottom: .35rem; }
.bia-mail-summary p { margin: 0; color: var(--bia-ink); }
.bia-audio { display: flex; align-items: center; gap: .75rem; padding: .8rem 0 0; border-top: 1px solid var(--bia-line); font-size: .8rem; }
.bia-audio-icon { flex: 0 0 auto; width: 34px; height: 40px; display: grid; place-items: center; border-radius: 7px; color: var(--bia-pink); background: #fceaf6; }
.bia-audio svg { width: 19px; height: 19px; }
.bia-audio small { display: block; color: var(--bia-muted); font-size: .7rem; }
.bia-section { padding: 5rem 0; scroll-margin-top: 105px; }
.bia-section-soft { background: var(--bia-soft); }
.bia-heading { max-width: 720px; margin-bottom: 2.5rem; }
.bia-heading h2,.bia-page h2 { font-size: clamp(1.9rem,3.1vw,2.6rem); line-height: 1.17; letter-spacing: -.035em; color: var(--bia-ink); margin: 0 0 1rem; }
.bia-heading p { color: var(--bia-muted); line-height: 1.8; margin: 0; }
.bia-steps { display: grid; grid-template-columns: repeat(4,minmax(0,1fr)); gap: 1.5rem; }
.bia-step { border-top: 2px solid #ead9e9; padding-top: 1.2rem; }
.bia-step-num { font-size: .8rem; font-weight: 800; color: var(--bia-pink); }
.bia-step h3 { margin: .65rem 0 .5rem; font-size: 1.05rem; }
.bia-step p { color: var(--bia-muted); font-size: .9rem; line-height: 1.8; margin: 0; }
.bia-example-grid { display: grid; grid-template-columns: minmax(0,.8fr) minmax(0,1.2fr); gap: 4rem; align-items: start; }
.bia-case-picker { display: flex; flex-wrap: wrap; gap: .5rem; margin: 1.8rem 0 1.2rem; }
.bia-case-picker button { font: inherit; font-size: .85rem; font-weight: 600; padding: .6rem .9rem; border-radius: 8px; border: 1px solid #dfe3ec; background: #fff; color: #47546d; cursor: pointer; }
.bia-case-picker button[aria-pressed="true"] { background: #17223c; border-color: #17223c; color: #fff; }
.bia-page :is(button,a,summary):focus-visible { outline: 3px solid #aa47ce; outline-offset: 4px; }
.bia-example-note { color: var(--bia-muted); font-size: .8rem; line-height: 1.8; }
.bia-benefits { list-style: none; margin: 2rem 0 0; padding: 0; }
.bia-benefits li { position: relative; padding: 0 0 1.2rem 1.6rem; color: var(--bia-muted); font-size: .9rem; line-height: 1.7; }
.bia-benefits li::before { content: '✓'; position: absolute; left: 0; color: var(--bia-pink); font-weight: 800; }
.bia-benefits strong { color: var(--bia-ink); }
.bia-mail-data { margin: 1rem 0; font-size: .8rem; }
.bia-mail-data > div { display: grid; grid-template-columns: 110px minmax(0,1fr); gap: 1rem; padding: .45rem 0; border-bottom: 1px solid var(--bia-line); }
.bia-mail-data dt { color: var(--bia-muted); }
.bia-mail-data dd { margin: 0; overflow-wrap: anywhere; }
.bia-mail details { border-top: 1px solid var(--bia-line); padding-top: 1rem; margin-top: 1rem; font-size: .82rem; }
.bia-mail summary { cursor: pointer; font-weight: 700; }
.bia-mail blockquote { margin: .8rem 0 0; padding: 1rem; background: #f6f7fb; border-radius: 7px; color: var(--bia-muted); line-height: 1.8; }
.bia-mail-foot { margin: 1rem 0 0; color: var(--bia-muted); font-size: .7rem; line-height: 1.7; }
.bia-price-grid { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,.9fr); gap: 5rem; align-items: center; }
.bia-plan { border: 1px solid #ecd6e6; border-top: 4px solid var(--bia-pink); border-radius: 18px; padding: 2.2rem; background: #fff; box-shadow: 0 15px 45px #34132d08; }
.bia-plan h3 { font-size: 1.2rem; margin: 0 0 1rem; }
.bia-plan-amount { display: flex; align-items: baseline; gap: .35rem; color: var(--bia-ink); }
.bia-plan-amount strong { font-size: 4rem; line-height: 1; letter-spacing: -.065em; }
.bia-plan-amount span { font-size: 1rem; color: var(--bia-muted); }
.bia-plan-tax { font-size: .8rem; color: var(--bia-muted); margin: .6rem 0 1.5rem; }
.bia-plan ul { list-style: none; padding: 0; margin: 1.5rem 0; }
.bia-plan li { padding: .65rem 0; font-size: .88rem; border-bottom: 1px solid var(--bia-line); }
.bia-plan-note { font-size: .78rem; color: var(--bia-muted); line-height: 1.8; margin: 1rem 0 0; }
.bia-faq { max-width: 860px; }
.bia-faq details { border-bottom: 1px solid var(--bia-line); padding: 1.2rem 0; }
.bia-faq summary { font-weight: 650; cursor: pointer; line-height: 1.6; }
.bia-faq p { color: var(--bia-muted); font-size: .93rem; line-height: 1.8; margin: 1rem 0 0; }
.bia-faq a { color: #b51080; text-decoration: underline; }
.bia-final { background: #172039; padding: 4rem 0; color: #fff; }
.bia-final h2 { color: #fff; max-width: 740px; }
.bia-final p { max-width: 650px; color: #c8d0e1; margin-bottom: 1.8rem; }
.bia-final .btn-secondary { background: transparent; color: #fff; border-color: #65718a; }
@media(max-width:1050px) { .bia-hero-grid,.bia-example-grid { gap: 2rem; } .bia-price-grid { gap: 3rem; } }
@media(max-width:800px) { .bia-hero-grid,.bia-example-grid,.bia-price-grid { grid-template-columns: minmax(0,1fr); } .bia-hero { padding-bottom: 3rem; } .bia-hero-grid { gap: 2.5rem; } .bia-hero-mail { max-width: 580px; } .bia-steps { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 2rem; } .bia-section { padding: 3.5rem 0; } .bia-price-grid { gap: 2rem; } }
@media(max-width:560px) { .bia-page .container { padding-left: 22px; padding-right: 22px; } .bia-hero { padding-top: calc(var(--header-height, 90px) + 1.8rem); } .bia-crumb { margin-bottom: 1.5rem; } .bia-actions .btn { width: 100%; white-space: normal; text-align: center; } .bia-mail-body { padding: 1.1rem; } .bia-mail-head { padding: .85rem 1.1rem; } .bia-steps { grid-template-columns: minmax(0,1fr); gap: 1.5rem; } .bia-plan { padding: 1.6rem; } .bia-case-picker button { min-height: 44px; } .bia-mail summary,.bia-faq summary { padding: .4rem 0; } body.light-mode .header .logo-img { max-width: 175px; height: auto; } .bia-mail-data > div { grid-template-columns: 90px minmax(0,1fr); gap: .6rem; } }
@media(max-width:380px) { .bia-page .header-cta .btn-primary { display: none; } }
@media(prefers-reduced-motion:reduce) { .bia-page * { scroll-behavior: auto !important; } }