/* AIWEAPP 官网技术底座、交付路径、场景与页脚样式。 */
.platform { background: #091018; }
.platform__layout { display: grid; grid-template-columns: minmax(0, 0.78fr) minmax(560px, 1.22fr); gap: 90px; align-items: center; }
.platform__copy > p { max-width: 500px; margin-top: 30px; }
.platform__tags { display: flex; margin-top: 34px; flex-wrap: wrap; gap: 8px; }

.architecture {
    position: relative;
    min-height: 620px;
    padding: 50px 48px 40px;
    overflow: hidden;
    border: 1px solid var(--line-strong);
    background: linear-gradient(rgba(143, 168, 192, 0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(143, 168, 192, 0.04) 1px, transparent 1px), #070c12;
    background-size: 26px 26px;
}

.architecture::before { position: absolute; top: 0; right: 0; width: 80px; height: 1px; background: var(--accent); box-shadow: 0 0 14px var(--accent); content: ""; }
.architecture__label { margin-bottom: 40px; color: var(--text-muted); font: 8px "SFMono-Regular", Consolas, monospace; letter-spacing: 0.12em; }
.architecture__layer { position: relative; display: grid; min-height: 92px; padding: 22px 30px 22px 68px; grid-template-columns: repeat(4, 1fr); gap: 9px; align-items: center; border: 1px solid var(--line); background: rgba(14, 22, 32, 0.9); }
.architecture__layer > span { padding: 11px 6px; border: 1px solid rgba(135, 160, 184, 0.2); color: #91a1b2; background: rgba(3, 7, 11, 0.3); font-size: 9px; text-align: center; }
.architecture__layer > b { position: absolute; top: 0; bottom: 0; left: 0; display: grid; width: 45px; place-items: center; border-right: 1px solid var(--line); color: var(--text-muted); font: 500 7px "SFMono-Regular", Consolas, monospace; letter-spacing: 0.09em; writing-mode: vertical-rl; }
.architecture__layer--business { border-color: rgba(94, 231, 216, 0.32); background: rgba(9, 25, 27, 0.86); }
.architecture__layer--business > span { border-color: rgba(94, 231, 216, 0.2); color: var(--accent); }
.architecture__bridge { display: grid; width: calc(100% - 90px); height: 50px; margin-inline: auto; grid-template-columns: repeat(4, 1fr); }
.architecture__bridge i { position: relative; width: 1px; height: 100%; margin-inline: auto; background: rgba(94, 231, 216, 0.18); }
.architecture__bridge i::after { position: absolute; bottom: -1px; left: -2px; width: 5px; height: 5px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 9px var(--accent); content: ""; }
.architecture__base { display: flex; position: relative; min-height: 64px; padding: 0 22px; align-items: center; justify-content: center; gap: 28px; border: 1px solid rgba(90, 141, 255, 0.28); color: #8296bb; background: rgba(12, 19, 34, 0.82); font: 8px "SFMono-Regular", Consolas, monospace; letter-spacing: 0.09em; }
.architecture__base i { position: absolute; right: 10px; bottom: 8px; width: 5px; height: 5px; border-radius: 50%; background: var(--accent-blue); box-shadow: 0 0 10px var(--accent-blue); }

/* 交付路径使用浅色区块，形成清晰的内容节奏。 */
.delivery { border-bottom: 1px solid var(--line); background: #f0f3f4; }
.delivery .eyebrow { color: #158f84; }
.delivery .section-heading h2 { color: #0b1219; }
.delivery .section-heading > p { color: #596570; }
.delivery-steps { display: grid; margin: 0; padding: 0; grid-template-columns: repeat(4, 1fr); border-top: 1px solid rgba(15, 29, 40, 0.18); border-left: 1px solid rgba(15, 29, 40, 0.18); list-style: none; }
.delivery-steps li { position: relative; min-height: 330px; padding: 28px; border-right: 1px solid rgba(15, 29, 40, 0.18); border-bottom: 1px solid rgba(15, 29, 40, 0.18); color: #0a1118; }
.delivery-steps li::after { position: absolute; right: 0; bottom: 0; left: 0; height: 4px; background: #19a99b; content: ""; transform: scaleX(0); transform-origin: left; transition: transform 240ms ease; }
.delivery-steps li:hover::after { transform: scaleX(1); }
.delivery-steps__number { color: #a5adb3; font: 300 48px "SFMono-Regular", Consolas, monospace; }
.delivery-steps li > span { display: block; margin-top: 58px; color: #168d83; font: 9px "SFMono-Regular", Consolas, monospace; letter-spacing: 0.12em; }
.delivery-steps h3 { margin: 10px 0 13px; font-size: 22px; font-weight: 600; }
.delivery-steps p { margin: 0; color: #64707b; font-size: 13px; line-height: 1.8; }

.scenes { background: #070a10; }
.scenes__header { display: flex; margin-bottom: 64px; align-items: flex-end; justify-content: space-between; }
.scenes__header .eyebrow { align-self: flex-start; margin-right: 60px; }
.scenes__header h2 { flex: 1; }
.scene-list { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); border-left: 1px solid var(--line); }
.scene-card { position: relative; min-height: 330px; padding: 32px; overflow: hidden; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); background: var(--surface); transition: background 220ms ease; }
.scene-card::before { position: absolute; top: -70px; right: -70px; width: 180px; height: 180px; border: 1px solid rgba(94, 231, 216, 0.08); border-radius: 50%; content: ""; transition: transform 300ms ease, border-color 300ms ease; }
.scene-card:hover { background: #0d151e; }
.scene-card:hover::before { border-color: rgba(94, 231, 216, 0.2); transform: scale(1.2); }
.scene-card__top { display: flex; align-items: center; justify-content: space-between; color: var(--text-muted); font: 9px "SFMono-Regular", Consolas, monospace; letter-spacing: 0.1em; }
.scene-card__top b { font-weight: 500; }
.scene-card h3 { max-width: 270px; margin: 92px 0 16px; font-size: 24px; font-weight: 600; }
.scene-card p { max-width: 300px; margin: 0; color: var(--text-soft); font-size: 13px; line-height: 1.8; }
.scene-card > i { position: absolute; right: 30px; bottom: 27px; color: var(--accent); font-size: 20px; font-style: normal; }

.contact { position: relative; padding: 110px 0; overflow: hidden; border-top: 1px solid rgba(94, 231, 216, 0.25); border-bottom: 1px solid var(--line); background: #081012; }
.contact::before { position: absolute; top: -190px; left: 34%; width: 650px; height: 650px; border: 1px solid rgba(94, 231, 216, 0.08); border-radius: 50%; box-shadow: inset 0 0 90px rgba(94, 231, 216, 0.035); content: ""; }
.contact__grid { opacity: 0.7; mask-image: radial-gradient(circle at 50% 50%, black, transparent 72%); }
.contact__inner { position: relative; z-index: 2; display: grid; grid-template-columns: minmax(0, 1.3fr) minmax(300px, 0.7fr); gap: 90px; align-items: end; }
.contact__action { padding-left: 34px; border-left: 1px solid rgba(94, 231, 216, 0.25); }
.button--copy { width: 100%; margin-top: 28px; justify-content: space-between; border: 0; }
.button--copy.is-copied { color: var(--accent); background: transparent; outline: 1px solid var(--accent); }
.contact__action small { display: block; margin-top: 14px; color: var(--text-muted); font-size: 10px; }

.site-footer { padding: 66px 0 26px; background: var(--bg-deep); }
.site-footer__inner { display: flex; padding-bottom: 56px; align-items: flex-start; justify-content: space-between; }
.site-footer__brand p { max-width: 360px; margin: 22px 0 0; color: var(--text-muted); font-size: 13px; }
.site-footer__links { display: flex; gap: 80px; }
.site-footer__links > div { display: flex; min-width: 90px; flex-direction: column; gap: 12px; }
.site-footer__links b { margin-bottom: 7px; color: var(--text); font-size: 12px; }
.site-footer__links a { color: var(--text-muted); font-size: 12px; transition: color 180ms ease; }
.site-footer__links a:hover { color: var(--accent); }
.site-footer__bottom { display: flex; padding-top: 24px; align-items: center; justify-content: space-between; border-top: 1px solid var(--line); color: #566271; font: 9px "SFMono-Regular", Consolas, monospace; letter-spacing: 0.07em; }
.site-footer__bottom b { font-weight: 500; }
.site-footer__bottom a:hover { color: var(--text-soft); }