:host {
    all: initial;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang TC", "Microsoft JhengHei", Arial, sans-serif;
    --theme-normal: #5A88FD;
    --theme-normal-rgb: 90, 136, 253;
    --theme-hover: #83A6FD;
    --theme-active: #476CC9;
    --theme-special: #B1C7FE;
    --theme-bg-hover: #D7E2FF;
    --theme-bg-light: #EFF3FF;
    --theme-gradient: linear-gradient(91deg, rgba(90, 136, 253, .18) 28.33%, rgba(239, 243, 255, .08) 98.77%), #fff;
}

* {
    box-sizing: border-box;
}

.fps-support-entry {
    position: fixed;
    right: 26px;
    bottom: 30px;
    z-index: 2147483002;
    width: 58px;
    height: 58px;
    border: 0;
    border-radius: 50%;
    background: var(--theme-normal);
    color: #fff;
    box-shadow: 0 10px 26px rgba(var(--theme-normal-rgb), .34);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    transition: transform .22s cubic-bezier(.2, .8, .2, 1), box-shadow .22s ease, background .22s ease;
}

.fps-support-entry::before {
    content: "";
    position: absolute;
    inset: -10px;
    border-radius: inherit;
    background: radial-gradient(circle, rgba(var(--theme-normal-rgb), .26) 0%, rgba(var(--theme-normal-rgb), 0) 68%);
    opacity: 0;
    transform: scale(.45);
    pointer-events: none;
}

.fps-support-entry::after {
    content: "";
    position: absolute;
    inset: 7px 9px auto auto;
    width: 16px;
    height: 9px;
    border-radius: 50%;
    background: rgba(255, 255, 255, .28);
    transform: rotate(18deg);
    pointer-events: none;
}

.fps-support-entry.is-launcher-tapping::before {
    animation: fps-support-launcher-ring .52s ease-out;
}

.fps-support-entry.is-open-button {
    right: 0;
    bottom: 30px;
    width: 56px;
    height: 56px;
    background: var(--theme-normal);
    box-shadow: 0 8px 24px rgba(var(--theme-normal-rgb), .32);
}

.fps-support-entry:hover {
    transform: translateY(-2px) scale(1.04);
    background: var(--theme-hover);
    box-shadow: 0 16px 34px rgba(var(--theme-normal-rgb), .42);
}

.fps-support-entry:hover .fps-support-entry-chat {
    animation: fps-support-icon-float .9s ease-in-out infinite;
}

.fps-support-entry.is-open-button:hover {
    background: var(--theme-hover);
    transform: scale(1.04);
}

.fps-support-entry-icon {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform .28s cubic-bezier(.2, .8, .2, 1), opacity .22s ease;
}

.fps-support-entry-icon svg {
    width: 29px;
    height: 29px;
}

.fps-support-entry-chat {
    opacity: 1;
    transform: rotate(0deg) scale(1);
}

.fps-support-entry.is-open-button .fps-support-entry-chat {
    opacity: 0;
    transform: rotate(135deg) scale(.55);
}

.fps-support-entry-close {
    width: 100%;
    height: 100%;
    color: #fff;
    line-height: 0;
    opacity: 0;
    transform: rotate(-135deg) scale(.55);
}

.fps-support-entry-close svg {
    width: 26px;
    height: 26px;
}

.fps-support-entry.is-open-button .fps-support-entry-close {
    opacity: 1;
    transform: rotate(0deg) scale(1);
}

.fps-support-entry.is-open-button:hover .fps-support-entry-close {
    animation: fps-support-close-wiggle .72s ease-in-out;
}

.fps-support-badge {
    position: absolute;
    top: -4px;
    right: -4px;
    min-width: 20px;
    height: 20px;
    padding: 0 5px;
    border-radius: 999px;
    background: #ff4d4f;
    color: #fff;
    font-size: 12px;
    line-height: 20px;
    text-align: center;
    display: none;
}

.fps-support-panel {
    position: fixed;
    right: 72px;
    bottom: 30px;
    z-index: 2147483001;
    width: min(400px, calc(100vw - 32px));
    height: min(700px, 80vh);
    min-height: 560px;
    display: none;
    flex-direction: column;
    overscroll-behavior: contain;
    touch-action: none;
    overflow: hidden;
    border-radius: 10px;
    border: 1px solid rgba(184, 200, 235, .8);
    background: #fff;
    box-shadow: 0 14px 42px rgba(15, 23, 42, .18);
    color: #101828;
}

.fps-support-panel::before {
    content: none;
}

.fps-support-panel.is-open {
    display: flex;
    animation: fps-support-pop .18s ease-out;
}

.fps-support-close {
    position: absolute;
    top: 34px;
    left: 30px;
    z-index: 4;
    width: 30px;
    height: 30px;
    border: 0;
    border-radius: 50%;
    background: transparent;
    color: #8b95a7;
    font-size: 36px;
    font-weight: 200;
    line-height: 26px;
    cursor: pointer;
    transition: color .16s ease, transform .16s ease;
}

.fps-support-close:hover {
    color: #4c5f7d;
    transform: scale(1.04);
}

.fps-support-top {
    flex: 0 0 auto;
    min-height: 88px;
    padding: 14px 20px 8px;
    display: flex;
    align-items: flex-start;
    justify-content: center;
}

.fps-support-agent-card {
    width: 260px;
    min-height: 56px;
    padding: 8px 18px 8px 10px;
    border-radius: 999px;
    background: rgba(255, 255, 255, .82);
    border: 1px solid rgba(214, 221, 235, .86);
    box-shadow: 0 10px 28px rgba(31, 56, 109, .14), inset 0 1px 0 rgba(255, 255, 255, .75);
    display: flex;
    align-items: center;
    gap: 10px;
    backdrop-filter: blur(12px);
    cursor: pointer;
    transition: transform .22s cubic-bezier(.2, .8, .2, 1), box-shadow .22s ease, border-color .22s ease, background .22s ease;
    will-change: transform;
}

.fps-support-agent-card:hover {
    transform: translateY(-3px) scale(1.015);
    background: rgba(255, 255, 255, .94);
    border-color: rgba(var(--theme-normal-rgb), .32);
    box-shadow: 0 16px 34px rgba(31, 56, 109, .18), 0 0 0 3px rgba(var(--theme-normal-rgb), .08), inset 0 1px 0 rgba(255, 255, 255, .9);
}

.fps-support-agent-card:hover .fps-support-avatar {
    transform: scale(1.05) rotate(-2deg);
}

.fps-support-avatar {
    width: 42px;
    height: 42px;
    flex: 0 0 auto;
    border-radius: 50%;
    object-fit: cover;
    background: #fff;
    box-shadow: 0 4px 10px rgba(29, 78, 216, .12);
    transition: transform .22s ease;
}

.fps-support-brand-text {
    min-width: 0;
}

.fps-support-title {
    color: #111827;
    font-size: 13px;
    font-weight: 700;
    line-height: 1.3;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.fps-support-subtitle {
    margin-top: 2px;
    color: #344054;
    font-size: 12px;
    line-height: 1.35;
    white-space: nowrap;
}

.fps-support-notice {
    flex: 0 0 auto;
    height: 36px;
    margin: 0 22px 10px;
    padding: 0 8px 0 12px;
    border-radius: 18px;
    background: var(--theme-bg-light);
    color: var(--theme-normal);
    display: flex;
    align-items: center;
    gap: 8px;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, .62);
    cursor: default;
}

.fps-support-notice:hover {
    background: var(--theme-bg-light);
}

.fps-support-notice.is-large {
    height: auto;
    min-height: 42px;
    border-radius: 16px;
    align-items: flex-start;
    padding-top: 9px;
    padding-bottom: 9px;
}

.fps-support-notice-icon {
    width: 18px;
    height: 18px;
    flex: 0 0 auto;
    color: var(--theme-normal);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.fps-support-notice-icon svg {
    width: 17px;
    height: 17px;
}

.fps-support-notice-track {
    flex: 1 1 auto;
    min-width: 0;
    overflow: hidden;
}

.fps-support-notice-text {
    display: inline-block;
    min-width: 100%;
    padding-left: 100%;
    color: var(--theme-normal);
    font-size: 13px;
    line-height: 18px;
    white-space: nowrap;
    animation: fps-support-marquee 15s linear infinite;
}

.fps-support-notice.is-large .fps-support-notice-text {
    white-space: nowrap;
}

.fps-support-notice-close {
    width: 22px;
    height: 22px;
    flex: 0 0 auto;
    border: 0;
    border-radius: 50%;
    background: transparent;
    color: var(--theme-normal);
    font-size: 24px;
    font-weight: 200;
    line-height: 19px;
    cursor: pointer;
}

.fps-support-messages {
    flex: 1 1 auto;
    min-height: 0;
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
    touch-action: pan-y;
    padding: 2px 24px 18px;
    background: #fff;
    scrollbar-width: thin;
    scrollbar-color: #d4ddec transparent;
}

.fps-support-date {
    position: relative;
    width: 100%;
    margin: 8px 0 22px;
    color: #98a2b3;
    font-size: 13px;
    line-height: 18px;
    text-align: center;
}

.fps-support-date::before,
.fps-support-date::after {
    content: "";
    position: absolute;
    top: 50%;
    width: calc(50% - 58px);
    height: 1px;
    background: #e4e8f0;
}

.fps-support-date::before {
    left: 0;
}

.fps-support-date::after {
    right: 0;
}

.fps-support-transfer {
    display: flex;
    justify-content: center;
    margin: -8px 0 18px;
}

.fps-support-transfer.is-transferred {
    display: none;
}

.fps-support-transfer-btn {
    min-height: 34px;
    max-width: 100%;
    border: 1px solid rgba(var(--theme-normal-rgb), .22);
    border-radius: 999px;
    background: #f4f7ff;
    color: var(--theme-normal);
    padding: 0 16px;
    font: inherit;
    font-size: 14px;
    font-weight: 700;
    line-height: 32px;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(var(--theme-normal-rgb), .1);
    transition: background .16s ease, border-color .16s ease, transform .16s ease;
}

.fps-support-transfer-btn:hover {
    background: #eaf1ff;
    border-color: rgba(var(--theme-normal-rgb), .38);
    transform: translateY(-1px);
}

.fps-support-transfer-btn:disabled {
    cursor: default;
    opacity: .7;
    transform: none;
}

.fps-support-row {
    display: flex;
    align-items: flex-start;
    gap: 9px;
    margin-bottom: 13px;
}

.fps-support-row.is-user {
    justify-content: flex-end;
}

.fps-support-row.is-agent,
.fps-support-row.is-system {
    justify-content: flex-start;
}

.fps-support-mini-avatar {
    width: 34px;
    height: 34px;
    flex: 0 0 auto;
    border-radius: 50%;
    background: transparent;
    color: var(--theme-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 10px rgba(var(--theme-normal-rgb), .12);
    overflow: hidden;
}

.fps-support-mini-avatar img {
    width: 34px;
    height: 34px;
    display: block;
    object-fit: cover;
}

.fps-support-message-stack {
    max-width: 78%;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.fps-support-row.is-user .fps-support-message-stack {
    align-items: flex-end;
}

.fps-support-bubble {
    max-width: 100%;
    min-height: 38px;
    padding: 9px 12px;
    border-radius: 5px;
    border: 1px solid rgba(231, 234, 240, .95);
    background: #fff;
    color: #1d2939;
    font-size: 14px;
    line-height: 1.55;
    word-break: break-word;
    box-shadow: 0 4px 14px rgba(16, 24, 40, .08);
}

.fps-support-row.is-user .fps-support-bubble {
    color: #fff;
    background: var(--theme-normal);
    border-color: var(--theme-normal);
    border-radius: 10px 10px 3px 10px;
    box-shadow: 0 6px 15px rgba(var(--theme-normal-rgb), .2);
}

.fps-support-row.is-agent .fps-support-bubble,
.fps-support-row.is-system .fps-support-bubble {
    border-radius: 5px 10px 10px 10px;
}

.fps-support-time {
    min-height: 18px;
    margin-top: 3px;
    color: #98a2b3;
    font-size: 12px;
    line-height: 18px;
    display: flex;
    align-items: center;
    column-gap: 7px;
}

.fps-support-time-name {
    max-width: 190px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.fps-support-time-name::after {
    content: "";
    display: inline-block;
    width: 6px;
}

.fps-support-bubble img {
    display: block;
    max-width: 190px;
    max-height: 190px;
    border-radius: 6px;
    cursor: zoom-in;
}

.fps-support-bubble video {
    display: block;
    width: 220px;
    max-width: 100%;
    border-radius: 6px;
}

.fps-support-file {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    color: inherit;
    text-decoration: none;
}

.fps-support-file svg {
    width: 18px;
    height: 18px;
    flex: 0 0 auto;
}

.fps-support-text-link,
.fps-support-action-link {
    color: inherit;
    text-decoration: underline;
    text-underline-offset: 2px;
}

.fps-support-action-link {
    font-weight: 700;
}

.fps-support-input-wrap {
    flex: 0 0 auto;
    height: 70px;
    padding: 10px 16px 12px;
    background: #fff;
    border-top: 1px solid #eef1f6;
}

.fps-support-tools {
    position: relative;
    height: 44px;
    border: 1px solid #e4e8f0;
    border-radius: 999px;
    background: #fff;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 0 8px 0 10px;
    box-shadow: 0 4px 16px rgba(16, 24, 40, .05);
}

.fps-support-icon-btn {
    width: 30px;
    height: 30px;
    flex: 0 0 auto;
    border: 0;
    border-radius: 50%;
    background: transparent;
    color: #667085;
    font-size: 34px;
    font-weight: 200;
    line-height: 25px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color .16s ease, background .16s ease;
}

.fps-support-face {
    font-size: 0;
}

.fps-support-face svg {
    width: 23px;
    height: 23px;
}

.fps-support-icon-btn:hover {
    color: #3978f2;
    background: #f2f6ff;
}

.fps-support-input {
    flex: 1 1 auto;
    min-width: 0;
    height: 38px;
    border: 0;
    outline: none;
    background: transparent;
    color: #101828;
    font-size: 14px;
    padding: 0 2px;
}

.fps-support-input::placeholder {
    color: #a4acb9;
}

.fps-support-send {
    width: 36px;
    height: 36px;
    flex: 0 0 auto;
    border: 0;
    border-radius: 50%;
    background: #e5e9ef;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background .16s ease, transform .16s ease;
}

.fps-support-send svg {
    width: 21px;
    height: 21px;
    transform: translateX(1px);
}

.fps-support-panel.has-text .fps-support-send {
    background: var(--theme-normal);
}

.fps-support-send:hover {
    transform: scale(1.04);
}

.fps-support-menu,
.fps-support-emoji {
    position: absolute;
    left: 22px;
    bottom: 56px;
    z-index: 5;
    display: none;
    background: #fff;
    border: 1px solid #e1e6ef;
    border-radius: 5px;
    box-shadow: 0 12px 32px rgba(16, 24, 40, .18);
}

.fps-support-menu.is-open,
.fps-support-emoji.is-open {
    display: block;
}

.fps-support-menu {
    width: 184px;
    padding: 10px;
}

.fps-support-menu button {
    width: 100%;
    height: 44px;
    border: 0;
    border-radius: 5px;
    background: #fff;
    color: #344054;
    display: flex;
    align-items: center;
    gap: 11px;
    padding: 0 12px;
    font-size: 15px;
    cursor: pointer;
    text-align: left;
}

.fps-support-menu button:hover {
    background: #f6f8fb;
}

.fps-support-menu svg {
    width: 20px;
    height: 20px;
    color: #475467;
}

.fps-support-emoji {
    left: 0;
    right: 0;
    bottom: 58px;
    margin: 0 auto;
    width: calc(100% - 20px);
    max-height: 224px;
    padding: 14px 16px;
    overflow-y: auto;
    border-radius: 10px;
}

.fps-support-emoji button {
    width: 36px;
    height: 36px;
    border: 0;
    border-radius: 8px;
    background: #fff;
    font-size: 24px;
    line-height: 36px;
    cursor: pointer;
}

.fps-support-emoji button:hover {
    background: #f3f6fb;
}

.fps-support-lightbox {
    position: fixed;
    inset: 0;
    z-index: 2147483004;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: rgba(0, 0, 0, .72);
}

.fps-support-lightbox.is-open {
    display: flex;
}

.fps-support-lightbox img {
    max-width: 96vw;
    max-height: 92vh;
    border-radius: 8px;
}

@media (max-width: 520px) {
    :host {
        --fps-mobile-tabbar-height: 82px;
        --fps-mobile-launcher-bottom: calc(12px + env(safe-area-inset-bottom, 0px));
        --fps-mobile-launcher-right: 8px;
        --fps-support-visual-height: 100vh;
        --fps-support-visual-offset-top: 0px;
    }

    .fps-support-entry {
        right: var(--fps-mobile-launcher-right);
        bottom: var(--fps-mobile-launcher-bottom);
    }

    .fps-support-entry.is-open-button {
        right: var(--fps-mobile-launcher-right);
        bottom: var(--fps-mobile-launcher-bottom);
    }

    .fps-support-panel {
        right: 8px;
        left: 8px;
        top: auto;
        bottom: calc(var(--fps-mobile-tabbar-height) + env(safe-area-inset-bottom, 0px) + 12px);
        width: auto;
        height: min(74vh, 640px);
        max-height: calc(var(--fps-support-visual-height) - var(--fps-mobile-tabbar-height) - env(safe-area-inset-bottom, 0px) - 24px);
        min-height: 0;
    }

    .fps-support-panel.is-input-focused {
        top: auto;
        bottom: calc(var(--fps-mobile-tabbar-height) + env(safe-area-inset-bottom, 0px) + 12px);
        height: min(74vh, 640px);
        max-height: calc(var(--fps-support-visual-height) - var(--fps-mobile-tabbar-height) - env(safe-area-inset-bottom, 0px) - 24px);
    }

    .fps-support-agent-card {
        width: 246px;
    }
}

@keyframes fps-support-pop {
    0% {
        opacity: .3;
        transform: translateY(16px) scale(.98);
    }
    100% {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes fps-support-marquee {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-100%);
    }
}

@keyframes fps-support-launcher-ring {
    0% {
        opacity: .62;
        transform: scale(.45);
    }
    100% {
        opacity: 0;
        transform: scale(1.45);
    }
}

@keyframes fps-support-icon-float {
    0%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    50% {
        transform: translateY(-2px) rotate(-4deg);
    }
}

@keyframes fps-support-close-wiggle {
    0%, 100% {
        transform: rotate(0deg) scale(1);
    }
    35% {
        transform: rotate(9deg) scale(1.08);
    }
    70% {
        transform: rotate(-7deg) scale(1.04);
    }
}