:root {
    --nav-bg: rgba(255, 250, 241, 0.96);
    --nav-line: #dcc8b6;
    --nav-green: #dcebdc;
    --nav-text: #51463f;
    --nav-shadow: rgba(125, 98, 87, 0.14);
}

.navbar,
.navbar * {
    box-sizing: border-box;
}

.navbar {
    position: relative;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    width: 100%;
    padding: 14px 20px;
    border: 2px dashed var(--nav-line);
    border-radius: 20px;
    background: var(--nav-bg);
    box-shadow: 4px 5px 0 var(--nav-shadow);
    color: var(--nav-text);
}

.navbar a {
    color: inherit;
    text-decoration: none;
}

.navbar .logo {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    flex-shrink: 0;
    font-size: 20px;
    font-weight: 800;
    white-space: nowrap;
}

.navbar .sheep-icon {
    font-size: 24px;
}

.navbar .nav-links {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    flex-wrap: wrap;
    gap: 4px;
}

.navbar .nav-links > a,
.navbar .user-link,
.navbar .logout-button,
.navbar .nav-dropdown-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 36px;
    padding: 8px 13px;
    border: 0;
    border-radius: 999px;
    background: transparent;
    color: inherit;
    font: inherit;
    font-size: 14px;
    line-height: 1;
    white-space: nowrap;
    cursor: pointer;
    transition:
        background 0.18s ease,
        transform 0.18s ease;
}

.navbar .nav-links > a:hover,
.navbar .nav-links > a.active,
.navbar .user-link:hover,
.navbar .logout-button:hover,
.navbar .nav-dropdown-btn:hover,
.navbar .nav-dropdown.open .nav-dropdown-btn {
    background: var(--nav-green);
}

.navbar .nav-links > a:hover,
.navbar .user-link:hover,
.navbar .logout-button:hover,
.navbar .nav-dropdown-btn:hover {
    transform: translateY(-1px);
}

.navbar .logout-form {
    display: inline-flex;
    margin: 0;
}

.navbar .nav-dropdown {
    position: relative;
    display: inline-flex;
}

.navbar .nav-dropdown-menu {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    z-index: 1000;
    display: none;
    min-width: 210px;
    padding: 12px;
    border: 2px dashed var(--nav-line);
    border-radius: 18px;
    background: rgba(255, 250, 241, 0.99);
    box-shadow: 6px 7px 0 var(--nav-shadow);
}

.navbar .nav-dropdown:hover .nav-dropdown-menu,
.navbar .nav-dropdown.open .nav-dropdown-menu {
    display: block;
}

.navbar .nav-dropdown-menu .nav-section {
    display: block;
    margin-bottom: 6px;
    padding: 6px 8px 5px;
    border-bottom: 1px dashed #e8dacb;
    color: #a58b80;
    font-size: 11px;
    letter-spacing: 1px;
}

.navbar .nav-dropdown-menu .nav-sub {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 9px 10px;
    border-radius: 11px;
    font-size: 14px;
}

.navbar .nav-dropdown-menu .nav-sub:hover {
    background: #f0f5ee;
}

.navbar .nav-dropdown-menu .icon {
    width: 22px;
    text-align: center;
}

@media (max-width: 900px) {
    .navbar {
        align-items: flex-start;
        flex-direction: column;
    }

    .navbar .nav-links {
        justify-content: flex-start;
        width: 100%;
    }
}

@media (max-width: 560px) {
    .navbar {
        padding: 13px;
        border-radius: 16px;
    }

    .navbar .nav-links {
        gap: 2px;
    }

    .navbar .nav-links > a,
    .navbar .user-link,
    .navbar .logout-button,
    .navbar .nav-dropdown-btn {
        padding: 7px 10px;
        font-size: 13px;
    }

    .navbar .nav-dropdown-menu {
        position: fixed;
        top: 90px;
        right: 16px;
        left: 16px;
        min-width: 0;
    }
}

.floating-message-widget {
    pointer-events: auto !important;
}

.floating-message-button {
    position: relative;
    z-index: 3002;
    pointer-events: auto !important;
}

.floating-message-panel {
    z-index: 3001;
    pointer-events: auto !important;
}

/* ===== 2026-08 Mobile navbar compact ===== */

@media (max-width: 640px) {
    .navbar {
        align-items: flex-start;
        flex-direction: column;
        gap: 9px;
        padding: 12px 14px;
        border-radius: 18px;
    }

    .navbar .logo {
        font-size: 18px;
    }

    .navbar .sheep-icon {
        font-size: 21px;
    }

    .navbar .nav-links {
        display: flex;
        width: 100%;
        max-width: 100%;
        flex-wrap: nowrap;
        justify-content: flex-start;
        gap: 3px;
        overflow-x: auto;
        overflow-y: hidden;
        padding-bottom: 2px;
        scrollbar-width: none;
        -webkit-overflow-scrolling: touch;
    }

    .navbar .nav-links::-webkit-scrollbar {
        display: none;
    }

    .navbar .nav-links > a,
    .navbar .user-link,
    .navbar .logout-button,
    .navbar .nav-dropdown,
    .navbar .nav-dropdown-btn {
        flex: 0 0 auto;
    }

    .navbar .nav-links > a,
    .navbar .user-link,
    .navbar .logout-button,
    .navbar .nav-dropdown-btn {
        min-height: 34px;
        padding: 7px 10px;
        font-size: 13px;
    }

    .navbar .nav-dropdown-menu {
        position: fixed;
        top: 112px;
        right: 14px;
        left: 14px;
        max-height: calc(100vh - 140px);
        overflow-y: auto;
    }

    .floating-message-widget {
        right: 10px !important;
        bottom: 14px !important;
    }

    .floating-message-button {
        width: 54px !important;
        height: 54px !important;
        min-width: 54px !important;
        min-height: 54px !important;
    }

    .floating-message-icon {
        font-size: 23px !important;
    }
}

/* ===== 2026-08 Mobile dropdown working final ===== */
@media (max-width: 640px) {

    /*
     * 默认状态：
     * 导航保持单行横向滑动。
     */
    .navbar .nav-links {
        flex-wrap: nowrap !important;
        overflow-x: auto !important;
        overflow-y: hidden !important;
    }

    /*
     * 菜单打开时：
     * 只临时取消裁切，不改变 flex 排版。
     */
    .navbar.dropdown-open {
        overflow: visible !important;
    }

    .navbar.dropdown-open .nav-links {
        overflow-x: visible !important;
        overflow-y: visible !important;
    }

    /*
     * dropdown 不作为菜单定位容器。
     * 菜单统一相对整个 navbar 定位。
     */
    .navbar .nav-dropdown {
        position: static !important;
        flex: 0 0 auto;
    }

    /*
     * 默认隐藏。
     */
    .navbar .nav-dropdown-menu {
        display: none !important;
    }

    /*
     * 打开的菜单浮在整个导航框下面。
     */
    .navbar .nav-dropdown.open > .nav-dropdown-menu {
        display: block !important;

        position: absolute !important;

        top: calc(100% + 8px) !important;
        right: 0 !important;
        left: 0 !important;

        width: auto !important;
        min-width: 0 !important;
        max-width: none !important;

        max-height: calc(100dvh - 210px);

        padding: 14px;

        overflow-x: hidden !important;
        overflow-y: auto !important;

        z-index: 99999 !important;

        border: 2px dashed var(--nav-line);
        border-radius: 18px;

        background: rgba(255, 250, 241, 0.99);
        box-shadow: 5px 6px 0 var(--nav-shadow);

        -webkit-overflow-scrolling: touch;
    }

    .navbar .nav-dropdown-menu .nav-sub {
        min-height: 42px;
        padding: 10px 12px;
        font-size: 14px;
    }
}

/* ===== Mobile dropdown layout polish - stable version ===== */
@media (max-width: 640px) {

    /*
     * 打开菜单时隐藏其他导航入口，
     * 避免整条导航横向溢出。
     */
    .navbar.dropdown-open .nav-links > * {
        display: none !important;
    }

    .navbar.dropdown-open
    .nav-links > .nav-dropdown.open {
        display: flex !important;

        width: 100% !important;
        flex: 0 0 100% !important;
    }

    /*
     * 保留已经验证能工作的 absolute 菜单。
     */
    .navbar.dropdown-open .nav-links {
        width: 100% !important;

        overflow: visible !important;
        flex-wrap: nowrap !important;
    }

    .navbar .nav-dropdown.open {
        position: static !important;
    }

    .navbar .nav-dropdown.open
    > .nav-dropdown-btn {
        align-self: flex-start;
    }

    .navbar .nav-dropdown.open
    > .nav-dropdown-menu {
        display: grid !important;

        position: absolute !important;

        top: calc(100% + 8px) !important;
        left: 0 !important;
        right: 0 !important;

        width: 100% !important;
        min-width: 0 !important;

        grid-template-columns:
            minmax(0, 1fr)
            minmax(0, 1fr);

        gap: 4px 8px;

        padding: 12px;

        max-height: calc(100dvh - 210px);

        overflow-x: hidden !important;
        overflow-y: auto !important;

        z-index: 99999 !important;
    }

    .navbar .nav-dropdown-menu .nav-section {
        grid-column: 1 / -1;
    }

    .navbar .nav-dropdown-menu .nav-sub {
        min-width: 0;
        min-height: 42px;
        padding: 9px 10px;
    }

    .navbar .nav-dropdown-menu form {
        min-width: 0;
    }
}

/* ===== 全站 UI SVG 基础 ===== */

.ui-icon {
    display: inline-block;
    width: 18px;
    height: 18px;
    flex: 0 0 auto;
    object-fit: contain;
    vertical-align: -4px;
}

.navbar .icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.navbar .icon .ui-icon {
    width: 17px;
    height: 17px;
    vertical-align: 0;
}

.navbar a > .ui-icon,
.navbar button > .ui-icon {
    margin-right: 5px;
}

.brand-sheep-svg {
    display: block;
    width: 30px;
    height: 30px;
}

@media (max-width: 640px) {
    .navbar .ui-icon {
        width: 16px;
        height: 16px;
    }

    .brand-sheep-svg {
        width: 27px;
        height: 27px;
    }
}

/* ===== 浮动私信 SVG ===== */

.floating-message-svg {
    display: block;
    width: 26px;
    height: 26px;
    object-fit: contain;
}

.floating-expand-svg {
    display: block;
    width: 15px;
    height: 15px;
    object-fit: contain;
}

/* ===== 浮动私信 SVG ===== */

.floating-message-svg {
    display: block;
    width: 26px;
    height: 26px;
    object-fit: contain;
}

.floating-expand-svg {
    display: block;
    width: 15px;
    height: 15px;
    object-fit: contain;
}

/* ===== 浮动私信空状态 SVG ===== */

.floating-empty-sheep {
    display: block;
    width: 36px;
    height: 36px;
    margin: 0 auto;
    object-fit: contain;
}