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A confident me as Supergirl stands full-body in a dramatic pose, hands in trench coat pockets,dark sunglasses. Her iconic blue-and-red suit with the “S” shield is partially revealed beneath a rust-colored cinematic trench coat, suggesting a hidden identity.
High-contrast, dramatic cinematic lighting with strong rim light and deep shadows, volumetric light beams, subtle haze. Filmic color grading, rich contrast, blockbuster trailer mood.A layered, semi-transparent 3D wall of floating social media comments and UI elements, softly glowing and receding in depth, surrounding her like digital echoes of hype. The comments are overwhelmingly positive and excited, featuring user profiles, likes, and hype text (e.g., 'PERFECT casting,' 'SO EXCITED,' 
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A dynamic, ultra-realistic action shot of a snowboarder performing a high-air jump on a snowy mountain slope. The rider wears a bright green winter jacket, black snow pants, gloves, and a dark beanie, with reflective goggles catching the cold mountain light. A cloud of visible breath escapes from the rider’s mouth in the freezing air. Snow explodes upward from the snowboard, creating sharp, frozen particles suspended mid-air. The background features a dramatic high-altitude landscape with forested slopes and distant mountains under soft, cold blue lighting. Capture cinematic contrast, DSLR realism, 85mm lens, f/2.8, crisp details, slow-motion energy, dynamic composition, atmospheric depth, high-clarity sports photography.
Generate an ultra-realistic, highly ultra-detailed, 8k resolution with 1080x1080 pixel portrait of me using the uploaded image for reference (preserved the likeness and the original face for reference) of a striking, ultra-sharp black and white studio portrait of a young woman with a powerful, direct gaze. She is seated gracefully on a seamless bright white floor, her legs crossed in a stylized, almost sculptural pose, with one knee raised and her hands clasped firmly over it. Her posture exudes a blend of strength and quiet contemplation. Her long, sleek, dark brown hair is meticulously parted down the middle, falling evenly over her shoulders, framing her face with elegant precision. Her makeup is refined and impactful, featuring intensely defined eyes with dark eyeliner, subtle shading, and prominent, well-groomed eyebrows. Her lips are natural, complementing her smooth, matte complexion. She is dressed in a simple, form-fitting black long-sleeved bodysuit, which accentuates the natural contours of her body without distraction. There are no accessories, maintaining a pure and minimalist aesthetic. *** The lighting is soft, even, and highly diffused, creating subtle, sculptural shadows that define her form and facial features without any harshness. The seamless pure white background provides an expansive, ethereal setting, isolating the subject and enhancing the monochromatic palette. The composition is a perfectly balanced medium full shot, centering the model and emphasizing the strong, symmetrical lines of her pose. The image is rendered with exquisite detail and clarity, from the individual strands of her hair to the subtle textures of her skin. The overall style is minimalist fine art portraiture, blending classic elegance with a contemporary edge, focusing on form, emotional depth, and timeless beauty.

Nvidia股價大跌引發華爾街恐慌 美國AI晶片出口限制拖累全球市場

美國晶片巨頭Nvidia警告,因美國對中國AI晶片實施新出口限制,公司將損失數十億美元,消息一出,Nvidia股價急挫,帶動整個華爾街下滑。市場同時受特朗普政府貿易戰陰霾、全球經濟前景不明朗等多重因素影響,投資者情緒進一步惡化。連美國聯合航空(United Airlines)都罕有地表示今年經濟走勢「無法預測」,加劇市場不安。

紐約證券交易所外觀

Nvidia領跌 科技股全面受壓

美股周三開市即大幅下挫,投資者對Nvidia宣布美國政府進一步限制其向中國出口AI晶片感到憂慮,預計將令公司首季業績蒸發約55億美元。這些H20晶片對人工智能發展至關重要,成為美中科技競賽核心爭議點。受此消息拖累,S&P 500指數下跌0.9%,科技股為主的納斯達克更挫1.7%,道瓊斯工業平均指數亦跌180點(0.4%)。

Nvidia單日重挫5.7%,成為市場最大拖累。美國及中國之間的科技戰近年愈演愈烈,拜登與特朗普兩屆政府均以國家安全為由,收緊先進半導體出口。民主黨參議員伊麗莎白·沃倫(Elizabeth Warren)亦加入呼籲,促請商務部加強AI晶片出口管制。

半導體板塊齊遭殃 歐洲ASML喊「環境動盪」

這股寒意迅速蔓延至整個半導體行業。AMD(超微半導體)同樣急挫5.7%。歐洲重要晶片設備供應商ASML則因對未來前景持審慎態度,股價跌5.3%,行政總裁Fouquet直言:「最新關稅令宏觀環境更加不明朗,這種動態局面或會持續一段時間。」

聯合航空:今年經濟難以預測

經濟不確定性並非科技業獨有。聯合航空罕有地發出兩套2025年預測——一套假設經濟衰退,一套假設經濟持續增長,反映貿易環境變數極大。不過,該公司上季盈利勝預期,並指高端及國際航班訂票有所增加,刺激股價逆市升1.2%。但公司坦言:「今年經濟走勢,實在無法有信心預測。」

關稅恐慌推高消費 零售銷售短暫爆升

有報告指出,美國3月零售銷售按月急升1.4%,遠超預期。分析認為,這主要是消費者為避開即將加徵的關稅,提前搶購汽車和電子產品等大額商品。事實上,年初首兩個月銷售表現低迷,1月跌1.2%,2月僅升0.2%。經濟學家警告,這種「搶購潮」屬短暫現象,關稅最終或會推高物價,削弱消費動力。

消費者信心急挫 衰退陰霾籠罩

不安情緒已反映在民眾信心數據上。4月密歇根大學消費者信心指數跌至50.8,較3月大跌11%,創新冠疫情以來新低。長期貿易摩擦、通脹預期升溫及失業憂慮,令消費者更趨謹慎,分析指若情況持續,消費或進一步收縮,甚至拖美國步入衰退。

投資者憂慮加劇 美國衰退警號閃現

美銀近期一項全球基金經理調查顯示,對經濟衰退的擔憂達20年來第四高。特朗普強推關稅政策,原意是振興美國製造業、縮減貿易逆差,卻被指推高通脹、加劇市場波動。債券市場亦見投資者避險,10年期美債孳息由4.35%微跌至4.33%。

全球股市同步下挫

歐美及亞洲主要股市同樣受壓。香港恒生指數跌1.9%,東京日經指數跌1%,首爾Kospi跌1.2%,巴黎CAC 40跌0.7%,倫敦富時100則因英國通脹連跌兩月(主要因天然氣價格回落)下滑0.4%。

展望:市場波動或成新常態

科技股受壓、貿易政策反覆、消費信心疲弱,多重陰影籠罩,分析普遍預期未來數周市場波動將持續。投資者和企業現時都密切關注美國經濟數據及華府政策走向,尋找前路方向。

編輯評論:晶片戰爭背後的深層危機——香港與亞洲的啟示

這次Nvidia事件不單是美國與中國科技戰的縮影,更是全球經濟「去全球化」趨勢的警號。中國被鎖定為科技發展「對手」,美國對AI晶片出口設限,不僅打擊中國,也令美國本土企業損失慘重。Nvidia一夜蒸發數十億美元,對全球資本市場信心衝擊巨大。這種「雙輸」局面,反映出科技產業鏈高度互依,單靠貿易壁壘難以真正保障國家安全,反而容易引發新一輪供應鏈危機。

對香港及亞洲區而言,這場晶片戰提醒我們:過度依賴單一市場或技術供應鏈,風險極高。港股受美股拖累,恒指同步下挫,正是外部風險「傳染」的最佳例證。未來本地企業若要突圍,或需加快科技自主、分散供應鏈,並積極拓展新興市場。

此外,消費者信心下滑、企業對未來前景迷茫,說明經濟結構調整的痛苦期可能才剛開始。美國短暫的消費搶購潮,並不等於經濟穩健,反而反映出市場對政策不確定性的恐慌。這種「預期心理」帶來的波動,或將成為新常態。

最後,這場科技冷戰不單是中美之爭,更是全球產業鏈重塑的前奏。香港若想在新格局下保持競爭力,必須及早部署,提升自主創新能力,並善用自身國際金融中心優勢,成為東西方科技與資本的橋樑。這才是我們應從Nvidia事件中學到的深層啟示。

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